Application of titanate nanoflowers for dye removal: A comparative study with titanate nanotubes and nanowires
Titanate nanoflower, a novel nanoporous material, has been tested as a new adsorbent for dye removal from wastewater due to its large adsorption capacity, fast kinetics and considerable photocatalytic activity. [Display omitted] ► Formation of titanate nanoflowers and their application as adsorbents...
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| Veröffentlicht in: | Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2012-05, Vol.191, p.38-44 |
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| creator | Huang, Jiquan Cao, Yongge Liu, Zhuguang Deng, Zhonghua Wang, Wenchao |
| description | Titanate nanoflower, a novel nanoporous material, has been tested as a new adsorbent for dye removal from wastewater due to its large adsorption capacity, fast kinetics and considerable photocatalytic activity. [Display omitted]
► Formation of titanate nanoflowers and their application as adsorbents/photocatalysts in wastewater treatment were reported. ► Titanate nanoflowers show large adsorption capacity and fast kinetics for the adsorption of methylene blue. ► Titanate nanoflowers show high photocatalytic activity for the dye degradation.
Titanate nanoflowers were synthesized through the hydrothermal reaction between anatase nanopowders and concentrated NaOH solution. The micrometer-sized nanoflower was assembled by many ultrathin nanosheets growing outside from a common central zone. This hierarchical structure with large surface area shows availability for the removal of organic pollutants from wastewater. Comparing with titanate nanotubes/nanowires, titanate nanoflowers show larger adsorption capacity and faster kinetics for the adsorption of methylene blue, and higher photocatalytic activity for the dye degradation. For titanate nanoflowers, the equilibrium data fit well with the Langmuir model with maximum monolayer adsorption capacity of 4.6e−4mol/g; the sorption kinetics can be described by the pseudo-second-order model, and the overall adsorption process is controlled by the intra-particle diffusion mechanism; the adsorbed dye and the residual dye could be degraded completely by the subsequent photocatalysis. |
| doi_str_mv | 10.1016/j.cej.2012.01.057 |
| format | Article |
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► Formation of titanate nanoflowers and their application as adsorbents/photocatalysts in wastewater treatment were reported. ► Titanate nanoflowers show large adsorption capacity and fast kinetics for the adsorption of methylene blue. ► Titanate nanoflowers show high photocatalytic activity for the dye degradation.
Titanate nanoflowers were synthesized through the hydrothermal reaction between anatase nanopowders and concentrated NaOH solution. The micrometer-sized nanoflower was assembled by many ultrathin nanosheets growing outside from a common central zone. This hierarchical structure with large surface area shows availability for the removal of organic pollutants from wastewater. Comparing with titanate nanotubes/nanowires, titanate nanoflowers show larger adsorption capacity and faster kinetics for the adsorption of methylene blue, and higher photocatalytic activity for the dye degradation. For titanate nanoflowers, the equilibrium data fit well with the Langmuir model with maximum monolayer adsorption capacity of 4.6e−4mol/g; the sorption kinetics can be described by the pseudo-second-order model, and the overall adsorption process is controlled by the intra-particle diffusion mechanism; the adsorbed dye and the residual dye could be degraded completely by the subsequent photocatalysis.</description><identifier>ISSN: 1385-8947</identifier><identifier>EISSN: 1873-3212</identifier><identifier>DOI: 10.1016/j.cej.2012.01.057</identifier><language>eng</language><publisher>Oxford: Elsevier B.V</publisher><subject>Adsorption ; Adsorption isotherms ; Adsorption kinetics ; Applied sciences ; Catalysis ; Catalytic reactions ; Chemical engineering ; Chemistry ; Dye ; Exact sciences and technology ; General and physical chemistry ; General purification processes ; methylene blue ; nanotubes ; nanowires ; Photocatalysis ; pollutants ; Pollution ; sorption isotherms ; surface area ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Titanate nanoflowers ; wastewater ; Wastewaters ; Water treatment and pollution</subject><ispartof>Chemical engineering journal (Lausanne, Switzerland : 1996), 2012-05, Vol.191, p.38-44</ispartof><rights>2012 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-3f61ed2a7b05864091105363863280fa004e7014e8992f353bd4f954396187a3</citedby><cites>FETCH-LOGICAL-c384t-3f61ed2a7b05864091105363863280fa004e7014e8992f353bd4f954396187a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1385894712000605$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25924934$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Huang, Jiquan</creatorcontrib><creatorcontrib>Cao, Yongge</creatorcontrib><creatorcontrib>Liu, Zhuguang</creatorcontrib><creatorcontrib>Deng, Zhonghua</creatorcontrib><creatorcontrib>Wang, Wenchao</creatorcontrib><title>Application of titanate nanoflowers for dye removal: A comparative study with titanate nanotubes and nanowires</title><title>Chemical engineering journal (Lausanne, Switzerland : 1996)</title><description>Titanate nanoflower, a novel nanoporous material, has been tested as a new adsorbent for dye removal from wastewater due to its large adsorption capacity, fast kinetics and considerable photocatalytic activity. [Display omitted]
► Formation of titanate nanoflowers and their application as adsorbents/photocatalysts in wastewater treatment were reported. ► Titanate nanoflowers show large adsorption capacity and fast kinetics for the adsorption of methylene blue. ► Titanate nanoflowers show high photocatalytic activity for the dye degradation.
Titanate nanoflowers were synthesized through the hydrothermal reaction between anatase nanopowders and concentrated NaOH solution. The micrometer-sized nanoflower was assembled by many ultrathin nanosheets growing outside from a common central zone. This hierarchical structure with large surface area shows availability for the removal of organic pollutants from wastewater. Comparing with titanate nanotubes/nanowires, titanate nanoflowers show larger adsorption capacity and faster kinetics for the adsorption of methylene blue, and higher photocatalytic activity for the dye degradation. For titanate nanoflowers, the equilibrium data fit well with the Langmuir model with maximum monolayer adsorption capacity of 4.6e−4mol/g; the sorption kinetics can be described by the pseudo-second-order model, and the overall adsorption process is controlled by the intra-particle diffusion mechanism; the adsorbed dye and the residual dye could be degraded completely by the subsequent photocatalysis.</description><subject>Adsorption</subject><subject>Adsorption isotherms</subject><subject>Adsorption kinetics</subject><subject>Applied sciences</subject><subject>Catalysis</subject><subject>Catalytic reactions</subject><subject>Chemical engineering</subject><subject>Chemistry</subject><subject>Dye</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>General purification processes</subject><subject>methylene blue</subject><subject>nanotubes</subject><subject>nanowires</subject><subject>Photocatalysis</subject><subject>pollutants</subject><subject>Pollution</subject><subject>sorption isotherms</subject><subject>surface area</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Titanate nanoflowers</subject><subject>wastewater</subject><subject>Wastewaters</subject><subject>Water treatment and pollution</subject><issn>1385-8947</issn><issn>1873-3212</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kE2LFDEQhhtRcF39AZ7MRfDSbeWrO9HTsPgFCx5czyGTrmiGnqRNMjPMvzfrLIIXT6nA875UPV33ksJAgY5vd4PD3cCAsgHoAHJ61F1RNfGeM8oet5kr2Sstpqfds1J2ADBqqq-6uFnXJThbQ4okeVJDtdFWJNHG5Jd0wlyIT5nMZyQZ9-lol3dkQ1zarza32BFJqYf5TE6h_vw3Xg9bLMTG-c_vFDKW590Tb5eCLx7e6-7u44e7m8_97ddPX242t73jStSe-5HizOy0BalGAZpSkHzkauRMgbcAAiegApXWzHPJt7PwWgqux3a05dfdm0vtmtOvA5Zq9qE4XBYbMR2KodB0tKikDaUX1OVUSkZv1hz2Np8bZO7Vmp1pas29WgPUNLUt8_qh3hZnF59tdKH8DTKpmdBcNO7VhfM2GfsjN-b7t1YkAdo9VOlGvL8Q2GQcA2ZTXMDocG62XDVzCv_Z4zc8I5dv</recordid><startdate>20120515</startdate><enddate>20120515</enddate><creator>Huang, Jiquan</creator><creator>Cao, Yongge</creator><creator>Liu, Zhuguang</creator><creator>Deng, Zhonghua</creator><creator>Wang, Wenchao</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TV</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20120515</creationdate><title>Application of titanate nanoflowers for dye removal: A comparative study with titanate nanotubes and nanowires</title><author>Huang, Jiquan ; Cao, Yongge ; Liu, Zhuguang ; Deng, Zhonghua ; Wang, Wenchao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-3f61ed2a7b05864091105363863280fa004e7014e8992f353bd4f954396187a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adsorption</topic><topic>Adsorption isotherms</topic><topic>Adsorption kinetics</topic><topic>Applied sciences</topic><topic>Catalysis</topic><topic>Catalytic reactions</topic><topic>Chemical engineering</topic><topic>Chemistry</topic><topic>Dye</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>General purification processes</topic><topic>methylene blue</topic><topic>nanotubes</topic><topic>nanowires</topic><topic>Photocatalysis</topic><topic>pollutants</topic><topic>Pollution</topic><topic>sorption isotherms</topic><topic>surface area</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>Titanate nanoflowers</topic><topic>wastewater</topic><topic>Wastewaters</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Jiquan</creatorcontrib><creatorcontrib>Cao, Yongge</creatorcontrib><creatorcontrib>Liu, Zhuguang</creatorcontrib><creatorcontrib>Deng, Zhonghua</creatorcontrib><creatorcontrib>Wang, Wenchao</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Chemical engineering journal (Lausanne, Switzerland : 1996)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huang, Jiquan</au><au>Cao, Yongge</au><au>Liu, Zhuguang</au><au>Deng, Zhonghua</au><au>Wang, Wenchao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Application of titanate nanoflowers for dye removal: A comparative study with titanate nanotubes and nanowires</atitle><jtitle>Chemical engineering journal (Lausanne, Switzerland : 1996)</jtitle><date>2012-05-15</date><risdate>2012</risdate><volume>191</volume><spage>38</spage><epage>44</epage><pages>38-44</pages><issn>1385-8947</issn><eissn>1873-3212</eissn><abstract>Titanate nanoflower, a novel nanoporous material, has been tested as a new adsorbent for dye removal from wastewater due to its large adsorption capacity, fast kinetics and considerable photocatalytic activity. [Display omitted]
► Formation of titanate nanoflowers and their application as adsorbents/photocatalysts in wastewater treatment were reported. ► Titanate nanoflowers show large adsorption capacity and fast kinetics for the adsorption of methylene blue. ► Titanate nanoflowers show high photocatalytic activity for the dye degradation.
Titanate nanoflowers were synthesized through the hydrothermal reaction between anatase nanopowders and concentrated NaOH solution. The micrometer-sized nanoflower was assembled by many ultrathin nanosheets growing outside from a common central zone. This hierarchical structure with large surface area shows availability for the removal of organic pollutants from wastewater. Comparing with titanate nanotubes/nanowires, titanate nanoflowers show larger adsorption capacity and faster kinetics for the adsorption of methylene blue, and higher photocatalytic activity for the dye degradation. For titanate nanoflowers, the equilibrium data fit well with the Langmuir model with maximum monolayer adsorption capacity of 4.6e−4mol/g; the sorption kinetics can be described by the pseudo-second-order model, and the overall adsorption process is controlled by the intra-particle diffusion mechanism; the adsorbed dye and the residual dye could be degraded completely by the subsequent photocatalysis.</abstract><cop>Oxford</cop><pub>Elsevier B.V</pub><doi>10.1016/j.cej.2012.01.057</doi><tpages>7</tpages></addata></record> |
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| ispartof | Chemical engineering journal (Lausanne, Switzerland : 1996), 2012-05, Vol.191, p.38-44 |
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| subjects | Adsorption Adsorption isotherms Adsorption kinetics Applied sciences Catalysis Catalytic reactions Chemical engineering Chemistry Dye Exact sciences and technology General and physical chemistry General purification processes methylene blue nanotubes nanowires Photocatalysis pollutants Pollution sorption isotherms surface area Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Titanate nanoflowers wastewater Wastewaters Water treatment and pollution |
| title | Application of titanate nanoflowers for dye removal: A comparative study with titanate nanotubes and nanowires |
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