Probing Uranium(IV) Hydrolyzed Colloids and Polymers by Light Scattering

Tetravalent uranium readily undergoes hydrolysis even in highly acidic aqueous solutions. In the present work, solutions ranging from 0.4 to 19 mM (total U) concentration ( 1 < pH < 4 ) are carefully investigated by light scattering technique with special emphasis on polymerization leading to...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of nuclear chemistry 2014-03, Vol.2014, p.1-10
Hauptverfasser: Priyadarshini, N., Sampath, M., Kumar, Shekhar, Mudali, U. Kamachi, Natarajan, R.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 10
container_issue
container_start_page 1
container_title Journal of nuclear chemistry
container_volume 2014
creator Priyadarshini, N.
Sampath, M.
Kumar, Shekhar
Mudali, U. Kamachi
Natarajan, R.
description Tetravalent uranium readily undergoes hydrolysis even in highly acidic aqueous solutions. In the present work, solutions ranging from 0.4 to 19 mM (total U) concentration ( 1 < pH < 4 ) are carefully investigated by light scattering technique with special emphasis on polymerization leading to colloid formation. The results clearly indicate that the concentration has significant effect on particle size as well as stability of colloids. With increasing concentration the size of colloids formed is smaller due to more crystalline nature of the colloids. Stability of colloids formed at lower concentration is greater than that of colloids formed at higher concentration. Weight average molecular weight of the freshly prepared and colloidal polymers aged for 3 days is determined from the Debye plot. It increases from 1,800 to 13,000 Da. 40–50 atoms of U are considered to be present in the polymer. Positive value of second virial coefficient shows that solute-solvent interaction is high leading to stable suspension. The results of this work are a clear indication that U(IV) hydrolysis does not differ from hydrolysis of Pu(IV).
doi_str_mv 10.1155/2014/232967
format Article
fullrecord <record><control><sourceid>crossref_hinda</sourceid><recordid>TN_cdi_crossref_primary_10_1155_2014_232967</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1155_2014_232967</sourcerecordid><originalsourceid>FETCH-LOGICAL-c1507-1aa32bd97edbd11fba510a83784de23ec2a6e7482ffbb55182bf2fa2058b61773</originalsourceid><addsrcrecordid>eNp9kEtLxDAYRYMoOIyz8g9k6YM6-ZKmaZdS1A4UHNBxW5ImmYn0IUlF6q-3Q124cnUvl8NdHIQugdwBcL6mBOI1ZTRLxAlaUAZxFGecn_7p52gVwjshBBJBCUsWqNj6Xrluj3dedu6zvdq8XeNi1L5vxm-jcd43Te90wLLTeDuNrfEBqxGXbn8Y8Esth8H46eACnVnZBLP6zSXaPT685kVUPj9t8vsyqoETEYGUjCqdCaOVBrBKciAyZSKNtaHM1FQmRsQptVYpziGlylIrKeGpSkAItkS382_t-xC8sdWHd630YwWkOnqojh6q2cNE38z0wXVafrl_4R9qIlwG</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Probing Uranium(IV) Hydrolyzed Colloids and Polymers by Light Scattering</title><source>Wiley Online Library (Open Access Collection)</source><source>Alma/SFX Local Collection</source><creator>Priyadarshini, N. ; Sampath, M. ; Kumar, Shekhar ; Mudali, U. Kamachi ; Natarajan, R.</creator><contributor>Humelnicu, Doina</contributor><creatorcontrib>Priyadarshini, N. ; Sampath, M. ; Kumar, Shekhar ; Mudali, U. Kamachi ; Natarajan, R. ; Humelnicu, Doina</creatorcontrib><description>Tetravalent uranium readily undergoes hydrolysis even in highly acidic aqueous solutions. In the present work, solutions ranging from 0.4 to 19 mM (total U) concentration ( 1 &lt; pH &lt; 4 ) are carefully investigated by light scattering technique with special emphasis on polymerization leading to colloid formation. The results clearly indicate that the concentration has significant effect on particle size as well as stability of colloids. With increasing concentration the size of colloids formed is smaller due to more crystalline nature of the colloids. Stability of colloids formed at lower concentration is greater than that of colloids formed at higher concentration. Weight average molecular weight of the freshly prepared and colloidal polymers aged for 3 days is determined from the Debye plot. It increases from 1,800 to 13,000 Da. 40–50 atoms of U are considered to be present in the polymer. Positive value of second virial coefficient shows that solute-solvent interaction is high leading to stable suspension. The results of this work are a clear indication that U(IV) hydrolysis does not differ from hydrolysis of Pu(IV).</description><identifier>ISSN: 2314-4955</identifier><identifier>EISSN: 2314-4955</identifier><identifier>DOI: 10.1155/2014/232967</identifier><language>eng</language><publisher>Hindawi Publishing Corporation</publisher><ispartof>Journal of nuclear chemistry, 2014-03, Vol.2014, p.1-10</ispartof><rights>Copyright © 2014 N. Priyadarshini et al.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1507-1aa32bd97edbd11fba510a83784de23ec2a6e7482ffbb55182bf2fa2058b61773</citedby><cites>FETCH-LOGICAL-c1507-1aa32bd97edbd11fba510a83784de23ec2a6e7482ffbb55182bf2fa2058b61773</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><contributor>Humelnicu, Doina</contributor><creatorcontrib>Priyadarshini, N.</creatorcontrib><creatorcontrib>Sampath, M.</creatorcontrib><creatorcontrib>Kumar, Shekhar</creatorcontrib><creatorcontrib>Mudali, U. Kamachi</creatorcontrib><creatorcontrib>Natarajan, R.</creatorcontrib><title>Probing Uranium(IV) Hydrolyzed Colloids and Polymers by Light Scattering</title><title>Journal of nuclear chemistry</title><description>Tetravalent uranium readily undergoes hydrolysis even in highly acidic aqueous solutions. In the present work, solutions ranging from 0.4 to 19 mM (total U) concentration ( 1 &lt; pH &lt; 4 ) are carefully investigated by light scattering technique with special emphasis on polymerization leading to colloid formation. The results clearly indicate that the concentration has significant effect on particle size as well as stability of colloids. With increasing concentration the size of colloids formed is smaller due to more crystalline nature of the colloids. Stability of colloids formed at lower concentration is greater than that of colloids formed at higher concentration. Weight average molecular weight of the freshly prepared and colloidal polymers aged for 3 days is determined from the Debye plot. It increases from 1,800 to 13,000 Da. 40–50 atoms of U are considered to be present in the polymer. Positive value of second virial coefficient shows that solute-solvent interaction is high leading to stable suspension. The results of this work are a clear indication that U(IV) hydrolysis does not differ from hydrolysis of Pu(IV).</description><issn>2314-4955</issn><issn>2314-4955</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>RHX</sourceid><recordid>eNp9kEtLxDAYRYMoOIyz8g9k6YM6-ZKmaZdS1A4UHNBxW5ImmYn0IUlF6q-3Q124cnUvl8NdHIQugdwBcL6mBOI1ZTRLxAlaUAZxFGecn_7p52gVwjshBBJBCUsWqNj6Xrluj3dedu6zvdq8XeNi1L5vxm-jcd43Te90wLLTeDuNrfEBqxGXbn8Y8Esth8H46eACnVnZBLP6zSXaPT685kVUPj9t8vsyqoETEYGUjCqdCaOVBrBKciAyZSKNtaHM1FQmRsQptVYpziGlylIrKeGpSkAItkS382_t-xC8sdWHd630YwWkOnqojh6q2cNE38z0wXVafrl_4R9qIlwG</recordid><startdate>20140326</startdate><enddate>20140326</enddate><creator>Priyadarshini, N.</creator><creator>Sampath, M.</creator><creator>Kumar, Shekhar</creator><creator>Mudali, U. Kamachi</creator><creator>Natarajan, R.</creator><general>Hindawi Publishing Corporation</general><scope>RHU</scope><scope>RHW</scope><scope>RHX</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20140326</creationdate><title>Probing Uranium(IV) Hydrolyzed Colloids and Polymers by Light Scattering</title><author>Priyadarshini, N. ; Sampath, M. ; Kumar, Shekhar ; Mudali, U. Kamachi ; Natarajan, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1507-1aa32bd97edbd11fba510a83784de23ec2a6e7482ffbb55182bf2fa2058b61773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Priyadarshini, N.</creatorcontrib><creatorcontrib>Sampath, M.</creatorcontrib><creatorcontrib>Kumar, Shekhar</creatorcontrib><creatorcontrib>Mudali, U. Kamachi</creatorcontrib><creatorcontrib>Natarajan, R.</creatorcontrib><collection>Hindawi Publishing Complete</collection><collection>Hindawi Publishing Subscription Journals</collection><collection>Hindawi Publishing Open Access Journals</collection><collection>CrossRef</collection><jtitle>Journal of nuclear chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Priyadarshini, N.</au><au>Sampath, M.</au><au>Kumar, Shekhar</au><au>Mudali, U. Kamachi</au><au>Natarajan, R.</au><au>Humelnicu, Doina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Probing Uranium(IV) Hydrolyzed Colloids and Polymers by Light Scattering</atitle><jtitle>Journal of nuclear chemistry</jtitle><date>2014-03-26</date><risdate>2014</risdate><volume>2014</volume><spage>1</spage><epage>10</epage><pages>1-10</pages><issn>2314-4955</issn><eissn>2314-4955</eissn><abstract>Tetravalent uranium readily undergoes hydrolysis even in highly acidic aqueous solutions. In the present work, solutions ranging from 0.4 to 19 mM (total U) concentration ( 1 &lt; pH &lt; 4 ) are carefully investigated by light scattering technique with special emphasis on polymerization leading to colloid formation. The results clearly indicate that the concentration has significant effect on particle size as well as stability of colloids. With increasing concentration the size of colloids formed is smaller due to more crystalline nature of the colloids. Stability of colloids formed at lower concentration is greater than that of colloids formed at higher concentration. Weight average molecular weight of the freshly prepared and colloidal polymers aged for 3 days is determined from the Debye plot. It increases from 1,800 to 13,000 Da. 40–50 atoms of U are considered to be present in the polymer. Positive value of second virial coefficient shows that solute-solvent interaction is high leading to stable suspension. The results of this work are a clear indication that U(IV) hydrolysis does not differ from hydrolysis of Pu(IV).</abstract><pub>Hindawi Publishing Corporation</pub><doi>10.1155/2014/232967</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 2314-4955
ispartof Journal of nuclear chemistry, 2014-03, Vol.2014, p.1-10
issn 2314-4955
2314-4955
language eng
recordid cdi_crossref_primary_10_1155_2014_232967
source Wiley Online Library (Open Access Collection); Alma/SFX Local Collection
title Probing Uranium(IV) Hydrolyzed Colloids and Polymers by Light Scattering
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T13%3A55%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref_hinda&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Probing%20Uranium(IV)%20Hydrolyzed%20Colloids%20and%20Polymers%20by%20Light%20Scattering&rft.jtitle=Journal%20of%20nuclear%20chemistry&rft.au=Priyadarshini,%20N.&rft.date=2014-03-26&rft.volume=2014&rft.spage=1&rft.epage=10&rft.pages=1-10&rft.issn=2314-4955&rft.eissn=2314-4955&rft_id=info:doi/10.1155/2014/232967&rft_dat=%3Ccrossref_hinda%3E10_1155_2014_232967%3C/crossref_hinda%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true