Name: an efficient method for selective desalination of radioactive iodine anions by using gold nanoparticles-embedded membrane filter
Uploaded: 2018-07-13T14:00:00
Description: Watch this Scientific Journal Video about An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter at JoVE.com

Questo lavoro è stato supportato dall'assegno di ricerca dalla National Research Foundation di Corea (concessione numero: 2017M2A2A6A01070858).

1. sintesi di nanoparticelle di oro citrato-stabilizzato
<ol><li>Lavare il pallone a due colli da (250 mL) e un ancoretta magnetica con acqua regia, una miscela di acido cloridrico concentrato e acido nitrico concentrato in un rapporto di 3:1 in volume. Attenzione: soluzione acqua regia è estremamente corrosivo e può provocare esplosione o pelle brucia se non maneggiati con estrema cautela.</li>
	<li>Sciacquare la vetreria accuratamente con acqua deionizzata per rimuovere il residuo acido acquoso.</li>
	<li>Aggiun...

<ol>
	<li>Ojovan, M. I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Handbook of Advanced Radioactive Waste Conditioning Technologies. , (2011).</li><li>Abdel Rahman, R. O., Ibrahim, H. A., Hung, Y. -. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Liquid+Radioactive+Wastes+Treatment:+A+Review.">Liquid Radioactive Wastes Treatment: A Review.</a> Water. 3, 551-565 (2011).</li><li>Khayet, M., Matsuura, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Radioactive+decontamination+of+water.">Radioactive decontamination of water.</a> Desalination. 321, 1-2 (2013).</li><li>McLaughlin, P. D., Jones, B., Maher, M. 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F., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Capture+of+Volatile+Iodine,+a+Gaseous+Fission+Product,+by+Zeolitic+Imidazolate+Framework-8.">Capture of Volatile Iodine, a Gaseous Fission Product, by Zeolitic Imidazolate Framework-8.</a> Journal of the American Chemical Society. 133, 12398-12401 (2011).</li><li>Zhang, Z. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+new+type+of+polyhedron-based+metal-organic+frameworks+with+interpenetrating+cationic+and+anionic+nets+demonstrating+ion+exchange,+adsorption+and+luminescent+properties.">A new type of polyhedron-based metal-organic frameworks with interpenetrating cationic and anionic nets demonstrating ion exchange, adsorption and luminescent properties.</a> Chemical Communications. 47, 6425-6427 (2011).</li><li>Li, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Highly+efficient+I2+capture+by+simple+and+low-cost+deep+eutectic+solvents.">Highly efficient I2 capture by simple and low-cost deep eutectic solvents.</a> Green Chemistry. 18, 2522-2527 (2016).</li><li>Yan, C., Mu, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Investigation+of+ionic+liquids+for+efficient+removal+and+reliable+storage+of+radioactive+iodine:+a+halogen-bonding+case.">Investigation of ionic liquids for efficient removal and reliable storage of radioactive iodine: a halogen-bonding case.</a> Physical Chemistry Chemical Physics. 16, 5071-5075 (2014).</li><li>Choi, M. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Efficient+bioremediation+of+radioactive+iodine+using+biogenic+gold+nanomaterial-containing+radiation-resistant+bacterium,+Deinococcus+radiodurans+R1.">Efficient bioremediation of radioactive iodine using biogenic gold nanomaterial-containing radiation-resistant bacterium, Deinococcus radiodurans R1.</a> Chemical Communications. 53, 3937-3940 (2017).</li><li>Kim, Y. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tumor+targeting+and+imaging+using+cyclic+RGD-PEGylated+gold+nanoparticle+probes+with+directly+conjugated+iodine-125.">Tumor targeting and imaging using cyclic RGD-PEGylated gold nanoparticle probes with directly conjugated iodine-125.</a> Small. 7, 2052-2060 (2011).</li><li>Choi, M. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gold-Nanoparticle-Immobilized+Desalting+Columns+for+Highly+Efficient+and+Specific+Removal+of+Radioactive+Iodine+in+Aqueous+Media.">Gold-Nanoparticle-Immobilized Desalting Columns for Highly Efficient and Specific Removal of Radioactive Iodine in Aqueous Media.</a> ACS Applied Materials &amp; Interfaces. 8, 29227-29231 (2016).</li><li>Mushtaq, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Efficient+and+selective+removal+of+radioactive+iodine+anions+using+engineered+nanocomposite+membranes.">Efficient and selective removal of radioactive iodine anions using engineered nanocomposite membranes.</a> Environmental Science: Nano. 4, 2157-2163 (2017).</li><li>Awual, M. R., Ismael, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Efficient+gold(III)+detection,+separation+and+recovery+from+urban+mining+waste+using+a+facial+conjugate+adsorbent.">Efficient gold(III) detection, separation and recovery from urban mining waste using a facial conjugate adsorbent.</a> Sensors and Actuators B: Chemical. 196, 457-466 (2014).</li><li>Awual, M. R., Hasan, M. M., Naushad, M., Shiwaku, H., Yaita, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Preparation+of+new+class+composite+adsorbent+for+enhanced+palladium(II)+detection+and+recovery.">Preparation of new class composite adsorbent for enhanced palladium(II) detection and recovery.</a> Sensors and Actuators B: Chemical. 209, 790-797 (2015).</li><li>Awual, M. R., Hasan, M. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Fine-tuning+mesoporous+adsorbent+for+simultaneous+ultra-trace+palladium(II)+detection,+separation+and+recovery.">Fine-tuning mesoporous adsorbent for simultaneous ultra-trace palladium(II) detection, separation and recovery.</a> Journal of Industrial and Engineering Chemistry. 21, 507-515 (2015).</li><li>Awual, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ring+size+dependent+crown+ether+based+mesoporous+adsorbent+for+high+cesium+adsorption+from+wastewater.">Ring size dependent crown ether based mesoporous adsorbent for high cesium adsorption from wastewater.</a> Chemical Engineering Journal. 303, 539-546 (2016).</li><li>Awual, M. R., Miyazaki, Y., Taguchi, T., Shiwaku, H., Yaita, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Encapsulation+of+cesium+from+contaminated+water+with+highly+selective+facial+organic-inorganic+mesoporous+hybrid+adsorbent.">Encapsulation of cesium from contaminated water with highly selective facial organic-inorganic mesoporous hybrid adsorbent.</a> Chemical Engineering Journal. 291, 128-137 (2016).</li><li>Awual, M. R., Yaita, T., Taguchi, T., Shiwaku, H., Suzuki, S., Okamoto, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Selective+cesium+removal+from+radioactive+liquid+waste+by+crown+ether+immobilized+new+class+conjugate+adsorbent.">Selective cesium removal from radioactive liquid waste by crown ether immobilized new class conjugate adsorbent.</a> Journal of Hazardous Materials. 278, 227-235 (2014).</li><li>Awual, M. R., Suzuki, S., Taguchi, T., Shiwaku, H., Okamoto, Y., Yaita, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Radioactive+cesium+removal+from+nuclear+wastewater+by+novel+inorganic+and+conjugate+adsorbents.">Radioactive cesium removal from nuclear wastewater by novel inorganic and conjugate adsorbents.</a> Chemical Engineering Journal. 242, 127-135 (2014).</li><li>Awual, M. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Efficient+detection+and+adsorption+of+cadmium+(II)+ions+using+innovative+nano-composite+materials.">Efficient detection and adsorption of cadmium (II) ions using innovative nano-composite materials.</a> Chemical Engineering Journal. 343, 118-127 (2018).</li><li>Awual, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=New+type+mesoporous+conjugate+material+for+selective+optical+copper(II)+ions+monitoring+&amp;+removal+from+polluted+waters.">New type mesoporous conjugate material for selective optical copper(II) ions monitoring &amp; removal from polluted waters.</a> Chemical Engineering Journal. 307, 85-94 (2017).</li><li>Awual, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Novel+nanocomposite+materials+for+efficient+and+selective+mercury+ions+capturing+from+wastewater.">Novel nanocomposite materials for efficient and selective mercury ions capturing from wastewater.</a> Chemical Engineering Journal. 307, 456-465 (2017).</li><li>Awual, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Solid+phase+sensitive+palladium(II)+ions+detection+and+recovery+using+ligand+based+efficient+conjugate+nanomaterials.">Solid phase sensitive palladium(II) ions detection and recovery using ligand based efficient conjugate nanomaterials.</a> Chemical Engineering Journal. 300, 264-272 (2016).</li><li>Awual, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Assessing+of+lead(III)+capturing+from+contaminated+wastewater+using+ligand+doped+conjugate+adsorbent.">Assessing of lead(III) capturing from contaminated wastewater using ligand doped conjugate adsorbent.</a> Chemical Engineering Journal. 289, 65-73 (2016).</li><li>Awual, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+novel+facial+composite+adsorbent+for+enhanced+copper+(II)+detection+and+removal+from+wastewater.">A novel facial composite adsorbent for enhanced copper (II) detection and removal from wastewater.</a> Chemical Engineering Journal. 266, 368-375 (2015).</li><li>Kaushik, M., Moores, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Review:+nanocelluloses+as+versatile+supports+for+metal+nanoparticles+and+their+applications+in+catalysis.">Review: nanocelluloses as versatile supports for metal nanoparticles and their applications in catalysis.</a> Green Chemistry. 18, 622-637 (2016).</li><li>Jang, H., Kim, Y. K., Ryoo, S. R., Kim, M. H., Min, D. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Facile+synthesis+of+robust+and+biocompatible+gold+nanoparticles.">Facile synthesis of robust and biocompatible gold nanoparticles.</a> Chemical Communication. 46, 583-585 (2010).</li><li>Bolisetty, S., Mezzenga, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Amyloid-carbon+hybrid+membranes+for+universal+water+purification.">Amyloid-carbon hybrid membranes for universal water purification.</a> Nature Nanotechnology. 11, 365-371 (2016).</li><li>Zakrzewska-Trznadel, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Advances+in+membrane+technologies+for+the+treatment+of+liquid+radioactive+waste.">Advances in membrane technologies for the treatment of liquid radioactive waste.</a> Desalination. 321, 119-130 (2013).</li><li>Rana, D., Matsuura, T., Kassim, M. A., Ismail, A. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Radioactive+decontamination+of+water+by+membrane+processes+-+A+review.">Radioactive decontamination of water by membrane processes - A review.</a> Desalination. 321, 77-92 (2013).</li></ol>

In anni recenti, diversi nanomateriali ingegnerizzati e membrane sono state sviluppate per rimuovere pericolosi metalli radioattivi e metalli pesanti in acqua basato sulla loro funzionalità specifiche in adsorbimento tecniche25,26, 27 , 28 , 29 , 30 , 31 , 32</s...

Per diversi decenni, enorme quantità di rifiuti liquidi radioattivi è stato generato da istituti medici, strutture di ricerca e reattori nucleari. Queste sostanze inquinanti sono state spesso una minaccia palpabile per ambiente e salute umana1,2,3. Soprattutto, lo iodio radioattivo è riconosciuto come uno degli elementi più pericolosi da incidenti nucleari. Ad esempio, un ambientale relazione su Fukushima e Chernobyl reattore nucleare ha dimostrato che la quantità di rilasciato radioattivo iodio tra cui 131I (t1/2 = 8,02 giorni) e 129mi (t1/2 = 15,7 milioni di anni) per l'ambiente era più grande rispetto a quelli di altri radionuclidi4,5. In particolare, l'esposizione di questi radioisotopi provocato alto assorbimento e arricchimento nella tiroide umana6. Inoltre, iodio radioattivo rilasciato può causare grave contaminazione del suolo, dell'acqua di mare e acque sotterranee a causa della loro elevata solubilità in acqua. Di conseguenza, un sacco di processi di risanamento utilizzando vari materiali adsorbenti inorganici ed organici sono stati studiati per catturare iodio radioattivo rifiuti acquosi7,8,9,10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20. anche se grandi sforzi sono stati dedicati per lo sviluppo di sistemi avanzati di adsorbente, l'istituzione di un metodo di decontaminazione mostrando prestazioni soddisfacenti in flusso continuo nella circostanza era molto limitata. Recentemente, abbiamo riferito un processo di desalinizzazione romanzo mostrando buona rimozione efficienza, selettività ionica, sostenibilità e riutilizzabilità utilizzando materiali nano compositi ibridi di nanoparticelle d'oro (AuNPs)21,22 , 23. fra loro, membrane di acetato di cellulosa incorporato di nanoparticelle d'oro (Au-CAM) ha facilitato la desalinizzazione altamente efficiente di ioni ioduro sotto un sistema di flusso continuo rispetto a quelli dei materiali adsorbenti esistenti. Inoltre, l'intera procedura potrebbe essere finita in breve tempo, che era un altro vantaggio per il trattamento di rifiuti nucleari generate da post-uso in applicazioni medicali e industriali. L'obiettivo generale di questo manoscritto è quello di fornire un protocollo dettagliato per la preparazione di Au-CAM24. Inoltre dimostriamo un processo di filtrazione rapida e conveniente per cattura iono-selettivi di iodio radioattivo usando le membrane composite ingegnerizzate. Il protocollo dettagliato in questo rapporto vi offrirà un'utile applicazione di nanomateriali nel campo della ricerca, delle scienze ambientali.

<table border="0" cellpadding="0" cellspacing="0" style="width:813px;" width="813">
	<colgroup>
		<col />
		<col />
		<col />
		<col />
	</colgroup>
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:351px;">Hydrochloric acid</td>
			<td style="width:177px;">DUKSAN</td>
			<td style="width:119px;">1129</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Nitric acid&#160;</td>
			<td>JUNSEI</td>
			<td style="width:119px;">37335-1250</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">Chloroautic chloride trihydrate (HAuCl4&#183;3H2O)</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">254169</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sodium citrate tribasic dihydrate</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">71402</td>
			<td></td>
		</tr>
		<tr height="24">
			<td height="24" style="height:24px;">[125I]NaI&#160;</td>
			<td>Perkin-Elmer</td>
			<td style="width:119px;">NEZ033A010MC</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sodium chloride</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">S9888</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sodium iodide</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">383112</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sodium hydroxide</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">S5881</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Lithium L-lactate</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">L2250</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Citric acid</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">C1909</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:351px;">Sodium hydrogen carbonate</td>
			<td>JUNSEI</td>
			<td style="width:119px;">43305-1250</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:351px;">Urea</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">U1250</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Calcium chloride</td>
			<td>JUNSEI</td>
			<td style="width:119px;">18230-0301</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Magnesium sulfate</td>
			<td>SAMCHUN</td>
			<td style="width:119px;">M0146</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Potassium dihydrogen phosphate</td>
			<td>JUNSEI</td>
			<td style="width:119px;">84185A1250</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Dipotassium hydrogen phosphate</td>
			<td>JUNSEI</td>
			<td style="width:119px;">84120-1250</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sodium sulfate</td>
			<td>JUNSEI</td>
			<td style="width:119px;">83260-1250</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Ammonium chloride</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">A9434</td>
			<td>Synthetic urine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sea water</td>
			<td>Sigma Aldrich</td>
			<td style="width:119px;">S9148</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">1x PBS</td>
			<td>Thermo</td>
			<td style="width:119px;">SH30256.01</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Cellulose acetate membranes (pore size: 0.20 &#956;m, diameter: 25 mm)</td>
			<td>Advantec MFS</td>
			<td style="width:119px;">25CS045AS</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Cellulose acetate membranes (pore size: 0.20 &#956;m, diameter: 47 mm)</td>
			<td>Advantec MFS</td>
			<td style="width:119px;">C045A047A</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">47 mm Glass Microanalysis Holders</td>
			<td>Advantec MFS</td>
			<td style="width:119px;">KG47(311400)</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Petri dish (50 mm diameter &#180; 15 mm height)</td>
			<td>SPL</td>
			<td style="width:119px;">10050</td>
			<td></td>
		</tr>
		<tr height="24">
			<td height="24" style="height:24px;">Gamma counter</td>
			<td>Perkin-Elmer</td>
			<td>2480 WIZARD2</td>
			<td>Model number</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">UV-vis spectrophotometer</td>
			<td>Thermo</td>
			<td style="width:119px;">GENESYS 10</td>
			<td>Model number</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Transmission electron microscopy</td>
			<td style="width:177px;">Hitachi</td>
			<td style="width:119px;">H-7650</td>
			<td>Model number</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:351px;">Field Emission Scanning electron microscope</td>
			<td style="width:177px;">FEI</td>
			<td style="width:119px;">Verios 460L</td>
			<td>Model number</td>
		</tr>
	</tbody>
</table>

an efficient method for selective desalination of radioactive iodine anions by using gold nanoparticles-embedded membrane filter

Qui, dimostriamo un protocollo di dettaglio per la preparazione di membrane in composito a nanomateriali-embedded e la sua applicazione per la rimozione efficiente e iono-selettivi di iodio radioattivo. Utilizzando citrato-stabilizzato di nanoparticelle d'oro (diametro medio: 13 nm) e membrane di acetato di cellulosa, oro membrane incorporato delle nanoparticelle di acetato di cellulosa (Au-CAM) facilmente sono state fabbricate. I nano-materiali adsorbenti in Au-CAM erano altamente stabili in presenza di alta concentrazione di sali inorganici e molecole organiche. Gli ioni ioduro nelle soluzioni acquose rapidamente potevano essere catturati da questa membrana ingegnerizzata. Attraverso un processo di filtrazione utilizzando un'unità filtro contenente Au-CAM, rimozione eccellente efficienza (> 99%) anche come iono-selettivi desalinizzazione risultato è stato raggiunto in breve tempo. Inoltre, Au-CAM fornito buona riutilizzabilità senza diminuzione significativa delle sue prestazioni. Questi risultati hanno indicato che l'attuale tecnologia utilizza la membrana di ibridi derivati dal sarà un processo promettente per la decontaminazione su larga scala di iodio radioattivo da rifiuti liquidi.

Abbiamo dimostrato metodi semplici per la realizzazione di Au-CAM utilizzando citrato-stabilizzato AuNPs e acetato di cellulosa della membrana (Figura 1a). La superficie di Au-CAM è stata osservata da SEM che ha mostrato che i nanomateriali sono stati inseriti stabilmente sulle nanofibre di cellulosa (Figura 2). Le nanoparticelle in carcere sulla membrana sono state sostenute in modo stabile e non sono state lib...

Watch this Scientific Journal Video about An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter at JoVE.com

An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter

Un metodo efficiente per la dissalazione rapida e iono-selettivi di iodio radioattivo in diverse soluzioni acquose è descritto mediante filtri a membrana oro nanoparticelle-immobilizzata in acetato di cellulosa.

Un metodo efficiente per la desalinizzazione selettivo di anioni di iodio radioattivo mediante filtro a membrana incorporato di nanoparticelle d'oro

Here, we demonstrate a detail protocol for the preparation of nanomaterials-embedded composite membranes and its application to the efficient and ...

Research

JoVE Journal

Engineering

Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment

Area selettiva Modifica della Silicon bagnabilità della superficie da impulsi laser UV irradiazione in ambiente liquido

The wettability of silicon (Si) is one of the important parameters in the technology of surface functionalization of this material and fabrication of ...

Ricerca

Ingegneria

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Rilevamento e recupero di palladio, oro e metalli di cobalto dalla miniera urbana Utilizzando novelli Sensori / Adsorbenti designate con nanoscala Wagon a forma di ruote pori

Developing low-cost, efficient processes for recovering and recycling palladium, gold and cobalt metals from urban mine remains a significant challenge in ...

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating

Multifunzionale ibrida Fe<sub&gt; 2</sub&gt; O<sub&gt; 3</sub&gt; -Au Nanoparticelle per un efficiente riscaldamento plasmoniche

One of the most widely used methods for manufacturing colloidal gold nanospherical particles involves the reduction of chloroauric acid (HAuCl4) to ...

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Cationi monovalenti doping di CH<sub&gt; 3</sub&gt; NH<sub&gt; 3</sub&gt; PBI<sub&gt; 3</sub&gt; Per efficienti celle solari Perovskite

Here, we demonstrate the incorporation of monovalent cation additives into CH3NH3PbI3 perovskite in order to adjust the optical, excitonic, and electrical ...

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

Localizzazione dei difetti suburfacea mediante riscaldamento strutturato utilizzando la termografia fototermica proiettata laser

The presented method is used to locate subsurface defects oriented perpendicularly to the surface. To achieve this, we create destructively interfering ...

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Fabbricazione di matrici Nanocup oro periodica mediante Litografia colloidale

Within recent years, the field of plasmonics has exploded as researchers have demonstrated exciting applications related to chemical and optical sensing ...

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Progettazione e nella metodologia di caratterizzazione per efficiente ampio intervallo sintonizzabile MEMS filtri

Here, we demonstrate the advantages of the laser Doppler vibrometer (LDV) over conventional techniques (the network analyzer), as well as the techniques ...

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

Nucleazione controllabile di cavitazione da nanoparticelle plasmoniche d'oro per l'aumento ad alta intensità focalizzato applicazioni ad ultrasuoni

In this study, plasmonic gold nanoparticles were simultaneously exposed to pulsed near-infrared laser light and high intensity focused ultrasound (HIFU) ...

Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining

Utilizzo di celle di reazione oro-titanio flessibili per simulare l'attività microbica dipendente dalla pressione nel contesto del biomining del sottosuolo

Laboratory studies investigating subsurface microbial processes, such as metal leaching in deep ore deposits (biomining), share common and challenging ...

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering di siO2/Si Superfici omnifobiche da intaglio Gas-Entrapping Microtextures Comprising Reentrant e Doubly Reentrant Cavities or Pillars