Studies on Cr(VI) removal from aqueous solutions by nanotitania under visible light and dark conditions
The current study deals with Cr(VI) removal by nanotitania under fluorescent light and dark conditions. The equilibrium removal capacities, 85.85 and 59.4 mg of Cr(VI) g −1 of nanoparticle were noted for nanotitania interacted under light and dark conditions, respectively, at optimized conditions (p...
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| Veröffentlicht in: | Bulletin of materials science 2015-04, Vol.38 (2), p.393-400 |
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| creator | PAUL, MADONA LIEN SAMUEL, JASTIN ROY, RAJDEEP CHANDRASEKARAN, NATARAJAN MUKHERJEE, AMITAVA |
| description | The current study deals with Cr(VI) removal by nanotitania under fluorescent light and dark conditions. The equilibrium removal capacities, 85.85 and 59.4 mg of Cr(VI) g
−1
of nanoparticle were noted for nanotitania interacted under light and dark conditions, respectively, at optimized conditions (pH: 7.0, contact time: 30 min, initial Cr(VI) concentration: 20 mg l
−1
, nanoparticle dosage: 0.1 g l
−1
). Under both the conditions, the equilibrium removal data fitted well with the Langmuir isotherm model. The nanotitania followed a second-order kinetics under light condition whereas a pseudo-second-order kinetics was observed under dark condition. The surface characterization of nanotitania was carried out by zeta potential measurement and transmission electron microscope (TEM). Fourier transform infrared (FT-IR) studies carried out under light and dark conditions indicate the interaction of surface functional groups to Cr(VI). Cr(VI) removal study carried out in the Cr(VI)–Cr(III) mixture showed a decrease in Cr(VI) removal capacity with increase in Cr(III) concentration. A 92% regeneration of nanoparticle was observed indicating efficient reusability of the system. The applicability of the nanotitania in Cr(VI) contaminated water was studied by spiking Cr(VI) in natural water matrices like ground water and lake water. |
| doi_str_mv | 10.1007/s12034-015-0879-y |
| format | Article |
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−1
of nanoparticle were noted for nanotitania interacted under light and dark conditions, respectively, at optimized conditions (pH: 7.0, contact time: 30 min, initial Cr(VI) concentration: 20 mg l
−1
, nanoparticle dosage: 0.1 g l
−1
). Under both the conditions, the equilibrium removal data fitted well with the Langmuir isotherm model. The nanotitania followed a second-order kinetics under light condition whereas a pseudo-second-order kinetics was observed under dark condition. The surface characterization of nanotitania was carried out by zeta potential measurement and transmission electron microscope (TEM). Fourier transform infrared (FT-IR) studies carried out under light and dark conditions indicate the interaction of surface functional groups to Cr(VI). Cr(VI) removal study carried out in the Cr(VI)–Cr(III) mixture showed a decrease in Cr(VI) removal capacity with increase in Cr(III) concentration. A 92% regeneration of nanoparticle was observed indicating efficient reusability of the system. The applicability of the nanotitania in Cr(VI) contaminated water was studied by spiking Cr(VI) in natural water matrices like ground water and lake water.</description><identifier>ISSN: 0250-4707</identifier><identifier>EISSN: 0973-7669</identifier><identifier>DOI: 10.1007/s12034-015-0879-y</identifier><language>eng</language><publisher>Bangalore, India: Indian Academy of Sciences</publisher><subject>Adsorbents ; Aqueous solutions ; Chemistry and Materials Science ; Contact ; Electron microscopes ; Electrons ; Engineering ; Equilibrium ; Experiments ; Fluorescence ; Fourier transforms ; Functional groups ; Heavy metals ; Kinetics ; Light ; Materials Science ; Nanoparticles ; Nanostructure ; Optimization ; Particle size ; Regeneration ; Surface properties ; Titanium ; Transmission electron microscopy ; Trivalent chromium ; Zeta potential</subject><ispartof>Bulletin of materials science, 2015-04, Vol.38 (2), p.393-400</ispartof><rights>Indian Academy of Sciences 2015</rights><rights>Indian Academy of Sciences 2015.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-10de599607e9d3e1bd68d73e5467eb06b292b368d56d8a8ccec0f75105fb6cba3</citedby><cites>FETCH-LOGICAL-c392t-10de599607e9d3e1bd68d73e5467eb06b292b368d56d8a8ccec0f75105fb6cba3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/1677310326/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1677310326?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,776,780,21369,27903,27904,33723,33724,41467,42536,43784,51297,74048</link.rule.ids></links><search><creatorcontrib>PAUL, MADONA LIEN</creatorcontrib><creatorcontrib>SAMUEL, JASTIN</creatorcontrib><creatorcontrib>ROY, RAJDEEP</creatorcontrib><creatorcontrib>CHANDRASEKARAN, NATARAJAN</creatorcontrib><creatorcontrib>MUKHERJEE, AMITAVA</creatorcontrib><title>Studies on Cr(VI) removal from aqueous solutions by nanotitania under visible light and dark conditions</title><title>Bulletin of materials science</title><addtitle>Bull Mater Sci</addtitle><description>The current study deals with Cr(VI) removal by nanotitania under fluorescent light and dark conditions. The equilibrium removal capacities, 85.85 and 59.4 mg of Cr(VI) g
−1
of nanoparticle were noted for nanotitania interacted under light and dark conditions, respectively, at optimized conditions (pH: 7.0, contact time: 30 min, initial Cr(VI) concentration: 20 mg l
−1
, nanoparticle dosage: 0.1 g l
−1
). Under both the conditions, the equilibrium removal data fitted well with the Langmuir isotherm model. The nanotitania followed a second-order kinetics under light condition whereas a pseudo-second-order kinetics was observed under dark condition. The surface characterization of nanotitania was carried out by zeta potential measurement and transmission electron microscope (TEM). Fourier transform infrared (FT-IR) studies carried out under light and dark conditions indicate the interaction of surface functional groups to Cr(VI). Cr(VI) removal study carried out in the Cr(VI)–Cr(III) mixture showed a decrease in Cr(VI) removal capacity with increase in Cr(III) concentration. A 92% regeneration of nanoparticle was observed indicating efficient reusability of the system. The applicability of the nanotitania in Cr(VI) contaminated water was studied by spiking Cr(VI) in natural water matrices like ground water and lake water.</description><subject>Adsorbents</subject><subject>Aqueous solutions</subject><subject>Chemistry and Materials Science</subject><subject>Contact</subject><subject>Electron microscopes</subject><subject>Electrons</subject><subject>Engineering</subject><subject>Equilibrium</subject><subject>Experiments</subject><subject>Fluorescence</subject><subject>Fourier transforms</subject><subject>Functional groups</subject><subject>Heavy metals</subject><subject>Kinetics</subject><subject>Light</subject><subject>Materials Science</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>Optimization</subject><subject>Particle size</subject><subject>Regeneration</subject><subject>Surface properties</subject><subject>Titanium</subject><subject>Transmission electron microscopy</subject><subject>Trivalent chromium</subject><subject>Zeta potential</subject><issn>0250-4707</issn><issn>0973-7669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kEtPwzAQhCMEEqXwA7hZ4lIOgbWd2PERVTwqIXHgcbWc2CkuqV3spFL-PS7lgJA47Wr1zWh2suwcwxUG4NcRE6BFDrjMoeIiHw-yCQhOc86YOEw7KSEvOPDj7CTGFQAWRYEn2fK5H7Q1EXmH5mH2trhEwaz9VnWoDX6N1Odg_BBR9N3QW-8iqkfklPO97ZWzCg1Om4C2Ntq6M6izy_ceKaeRVuEDNd5p-y07zY5a1UVz9jOn2evd7cv8IX98ul_Mbx7zhgrS5xi0KYVgwI3Q1OBas0pzasqCcVMDq4kgNU23kulKVU1jGmh5iaFsa9bUik6z2d53E3yKHnu5trExXafc7g-JWcUKyklFEnrxB135IbiULlGcUwyUsEThPdUEH2MwrdwEu1ZhlBjkrnq5r16m6uWuejkmDdlrYmLd0oRfzv-KvgAIQ4fW</recordid><startdate>20150401</startdate><enddate>20150401</enddate><creator>PAUL, MADONA LIEN</creator><creator>SAMUEL, JASTIN</creator><creator>ROY, RAJDEEP</creator><creator>CHANDRASEKARAN, NATARAJAN</creator><creator>MUKHERJEE, AMITAVA</creator><general>Indian Academy of Sciences</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20150401</creationdate><title>Studies on Cr(VI) removal from aqueous solutions by nanotitania under visible light and dark conditions</title><author>PAUL, MADONA LIEN ; SAMUEL, JASTIN ; ROY, RAJDEEP ; CHANDRASEKARAN, NATARAJAN ; MUKHERJEE, AMITAVA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-10de599607e9d3e1bd68d73e5467eb06b292b368d56d8a8ccec0f75105fb6cba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Adsorbents</topic><topic>Aqueous solutions</topic><topic>Chemistry and Materials Science</topic><topic>Contact</topic><topic>Electron microscopes</topic><topic>Electrons</topic><topic>Engineering</topic><topic>Equilibrium</topic><topic>Experiments</topic><topic>Fluorescence</topic><topic>Fourier transforms</topic><topic>Functional groups</topic><topic>Heavy metals</topic><topic>Kinetics</topic><topic>Light</topic><topic>Materials Science</topic><topic>Nanoparticles</topic><topic>Nanostructure</topic><topic>Optimization</topic><topic>Particle size</topic><topic>Regeneration</topic><topic>Surface properties</topic><topic>Titanium</topic><topic>Transmission electron microscopy</topic><topic>Trivalent chromium</topic><topic>Zeta potential</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>PAUL, MADONA LIEN</creatorcontrib><creatorcontrib>SAMUEL, JASTIN</creatorcontrib><creatorcontrib>ROY, RAJDEEP</creatorcontrib><creatorcontrib>CHANDRASEKARAN, NATARAJAN</creatorcontrib><creatorcontrib>MUKHERJEE, AMITAVA</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Bulletin of materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>PAUL, MADONA LIEN</au><au>SAMUEL, JASTIN</au><au>ROY, RAJDEEP</au><au>CHANDRASEKARAN, NATARAJAN</au><au>MUKHERJEE, AMITAVA</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Studies on Cr(VI) removal from aqueous solutions by nanotitania under visible light and dark conditions</atitle><jtitle>Bulletin of materials science</jtitle><stitle>Bull Mater Sci</stitle><date>2015-04-01</date><risdate>2015</risdate><volume>38</volume><issue>2</issue><spage>393</spage><epage>400</epage><pages>393-400</pages><issn>0250-4707</issn><eissn>0973-7669</eissn><abstract>The current study deals with Cr(VI) removal by nanotitania under fluorescent light and dark conditions. The equilibrium removal capacities, 85.85 and 59.4 mg of Cr(VI) g
−1
of nanoparticle were noted for nanotitania interacted under light and dark conditions, respectively, at optimized conditions (pH: 7.0, contact time: 30 min, initial Cr(VI) concentration: 20 mg l
−1
, nanoparticle dosage: 0.1 g l
−1
). Under both the conditions, the equilibrium removal data fitted well with the Langmuir isotherm model. The nanotitania followed a second-order kinetics under light condition whereas a pseudo-second-order kinetics was observed under dark condition. The surface characterization of nanotitania was carried out by zeta potential measurement and transmission electron microscope (TEM). Fourier transform infrared (FT-IR) studies carried out under light and dark conditions indicate the interaction of surface functional groups to Cr(VI). Cr(VI) removal study carried out in the Cr(VI)–Cr(III) mixture showed a decrease in Cr(VI) removal capacity with increase in Cr(III) concentration. A 92% regeneration of nanoparticle was observed indicating efficient reusability of the system. The applicability of the nanotitania in Cr(VI) contaminated water was studied by spiking Cr(VI) in natural water matrices like ground water and lake water.</abstract><cop>Bangalore, India</cop><pub>Indian Academy of Sciences</pub><doi>10.1007/s12034-015-0879-y</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adsorbents Aqueous solutions Chemistry and Materials Science Contact Electron microscopes Electrons Engineering Equilibrium Experiments Fluorescence Fourier transforms Functional groups Heavy metals Kinetics Light Materials Science Nanoparticles Nanostructure Optimization Particle size Regeneration Surface properties Titanium Transmission electron microscopy Trivalent chromium Zeta potential |
| title | Studies on Cr(VI) removal from aqueous solutions by nanotitania under visible light and dark conditions |
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