Degradation of decabromodiphenyl ether by nano zero-valent iron immobilized in mesoporous silica microspheres
► Reactive mesoporous silica spheres (SiO 2@FeOOH@Fe) was synthesized. ► SiO 2@FeOOH@Fe presented a great capability of removing BDE209. ► The importance of hydrogen ion in removing BDE209 by SiO 2@FeOOH@Fe has been proved. ► SiO 2@FeOOH@Fe was agglomeration-resisting and good performances in magnet...
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| Veröffentlicht in: | Journal of hazardous materials 2011-10, Vol.193, p.70-81 |
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| creator | Qiu, Xinhong Fang, Zhanqiang Liang, Bin Gu, Fenglong Xu, Zhencheng |
| description | ► Reactive mesoporous silica spheres (SiO
2@FeOOH@Fe) was synthesized. ► SiO
2@FeOOH@Fe presented a great capability of removing BDE209. ► The importance of hydrogen ion in removing BDE209 by SiO
2@FeOOH@Fe has been proved. ► SiO
2@FeOOH@Fe was agglomeration-resisting and good performances in magnetic separation.
The agglomeration of nanoparticles reduces the surface area and reactivity of nano zero-valent iron (NZVI). In this paper, highly dispersive and reactive NZVI immobilized in mesoporous silica microspheres covered with FeOOH was synthesized to form reactive mesoporous silica microspheres (SiO
2@FeOOH@Fe). The characteristics of SiO
2@FeOOH@Fe were analyzed by transmission electron microscopy, Fourier transform infrared spectroscopy simultaneous thermal analysis, X-ray photoelectron spectroscopy, and Brunnaer–Emmett–Teller surface area analysis. The mean particle size of the reactive mesoporous silica microspheres was 450
nm, and its specific surface area was 383.477
m
2
g
−1. The degradation of dcabromodiphenyl ether (BDE209) was followed pseudo-first-order kinetics, and the observed reaction rate constant could be improved by increasing the SiO
2@FeOOH@Fe dosage and by decreasing the initial BDE209 concentration. The stability and longevity of the immobilized Fe nanoparticles were evaluated by repeatedly renewing the BDE209 solution in the reactor. The stable degradation of BDE209 by SiO
2@FeOOH@Fe was observed within 10 cycles. Agglomeration-resistance and magnetic separation of SiO
2@FeOOH@Fe were also performed. The improved dispersion of SiO
2@FeOOH@Fe in solution after one-month storage and its good performance in magnetic separation indicated that SiO
2@FeOOH@Fe has the potential to be efficiently applied to environmental remediation. |
| doi_str_mv | 10.1016/j.jhazmat.2011.07.024 |
| format | Article |
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2@FeOOH@Fe) was synthesized. ► SiO
2@FeOOH@Fe presented a great capability of removing BDE209. ► The importance of hydrogen ion in removing BDE209 by SiO
2@FeOOH@Fe has been proved. ► SiO
2@FeOOH@Fe was agglomeration-resisting and good performances in magnetic separation.
The agglomeration of nanoparticles reduces the surface area and reactivity of nano zero-valent iron (NZVI). In this paper, highly dispersive and reactive NZVI immobilized in mesoporous silica microspheres covered with FeOOH was synthesized to form reactive mesoporous silica microspheres (SiO
2@FeOOH@Fe). The characteristics of SiO
2@FeOOH@Fe were analyzed by transmission electron microscopy, Fourier transform infrared spectroscopy simultaneous thermal analysis, X-ray photoelectron spectroscopy, and Brunnaer–Emmett–Teller surface area analysis. The mean particle size of the reactive mesoporous silica microspheres was 450
nm, and its specific surface area was 383.477
m
2
g
−1. The degradation of dcabromodiphenyl ether (BDE209) was followed pseudo-first-order kinetics, and the observed reaction rate constant could be improved by increasing the SiO
2@FeOOH@Fe dosage and by decreasing the initial BDE209 concentration. The stability and longevity of the immobilized Fe nanoparticles were evaluated by repeatedly renewing the BDE209 solution in the reactor. The stable degradation of BDE209 by SiO
2@FeOOH@Fe was observed within 10 cycles. Agglomeration-resistance and magnetic separation of SiO
2@FeOOH@Fe were also performed. The improved dispersion of SiO
2@FeOOH@Fe in solution after one-month storage and its good performance in magnetic separation indicated that SiO
2@FeOOH@Fe has the potential to be efficiently applied to environmental remediation.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2011.07.024</identifier><identifier>PMID: 21802203</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Agglomeration ; Applied sciences ; Atmospheric pollution ; Chemical engineering ; Decabromodiphenyl ether ; Degradation ; Ethers ; Exact sciences and technology ; Fourier transform infrared spectroscopy ; Halogenated Diphenyl Ethers - chemistry ; Iron ; Iron - chemistry ; longevity ; magnetic separation ; Mesoporous silica microspheres ; Metal Nanoparticles - chemistry ; Microscopy, Electron, Transmission ; Microspheres ; Nano zero-valent iron ; Nanomaterials ; Nanoparticles ; Nanostructure ; particle size ; Pollution ; Reactors ; remediation ; silica ; Silicon dioxide ; Sintering, pelletization, granulation ; Solid-solid systems ; Spectroscopy, Fourier Transform Infrared ; surface area ; thermal analysis ; transmission electron microscopy ; X-ray photoelectron spectroscopy</subject><ispartof>Journal of hazardous materials, 2011-10, Vol.193, p.70-81</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c483t-f1f146dcd15bc6c4dbbd9dbdfd4f92911caaff94462f2fdd90c95540980283683</citedby><cites>FETCH-LOGICAL-c483t-f1f146dcd15bc6c4dbbd9dbdfd4f92911caaff94462f2fdd90c95540980283683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0304389411009058$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24604381$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21802203$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Qiu, Xinhong</creatorcontrib><creatorcontrib>Fang, Zhanqiang</creatorcontrib><creatorcontrib>Liang, Bin</creatorcontrib><creatorcontrib>Gu, Fenglong</creatorcontrib><creatorcontrib>Xu, Zhencheng</creatorcontrib><title>Degradation of decabromodiphenyl ether by nano zero-valent iron immobilized in mesoporous silica microspheres</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>► Reactive mesoporous silica spheres (SiO
2@FeOOH@Fe) was synthesized. ► SiO
2@FeOOH@Fe presented a great capability of removing BDE209. ► The importance of hydrogen ion in removing BDE209 by SiO
2@FeOOH@Fe has been proved. ► SiO
2@FeOOH@Fe was agglomeration-resisting and good performances in magnetic separation.
The agglomeration of nanoparticles reduces the surface area and reactivity of nano zero-valent iron (NZVI). In this paper, highly dispersive and reactive NZVI immobilized in mesoporous silica microspheres covered with FeOOH was synthesized to form reactive mesoporous silica microspheres (SiO
2@FeOOH@Fe). The characteristics of SiO
2@FeOOH@Fe were analyzed by transmission electron microscopy, Fourier transform infrared spectroscopy simultaneous thermal analysis, X-ray photoelectron spectroscopy, and Brunnaer–Emmett–Teller surface area analysis. The mean particle size of the reactive mesoporous silica microspheres was 450
nm, and its specific surface area was 383.477
m
2
g
−1. The degradation of dcabromodiphenyl ether (BDE209) was followed pseudo-first-order kinetics, and the observed reaction rate constant could be improved by increasing the SiO
2@FeOOH@Fe dosage and by decreasing the initial BDE209 concentration. The stability and longevity of the immobilized Fe nanoparticles were evaluated by repeatedly renewing the BDE209 solution in the reactor. The stable degradation of BDE209 by SiO
2@FeOOH@Fe was observed within 10 cycles. Agglomeration-resistance and magnetic separation of SiO
2@FeOOH@Fe were also performed. The improved dispersion of SiO
2@FeOOH@Fe in solution after one-month storage and its good performance in magnetic separation indicated that SiO
2@FeOOH@Fe has the potential to be efficiently applied to environmental remediation.</description><subject>Agglomeration</subject><subject>Applied sciences</subject><subject>Atmospheric pollution</subject><subject>Chemical engineering</subject><subject>Decabromodiphenyl ether</subject><subject>Degradation</subject><subject>Ethers</subject><subject>Exact sciences and technology</subject><subject>Fourier transform infrared spectroscopy</subject><subject>Halogenated Diphenyl Ethers - chemistry</subject><subject>Iron</subject><subject>Iron - chemistry</subject><subject>longevity</subject><subject>magnetic separation</subject><subject>Mesoporous silica microspheres</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Microscopy, Electron, Transmission</subject><subject>Microspheres</subject><subject>Nano zero-valent iron</subject><subject>Nanomaterials</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>particle size</subject><subject>Pollution</subject><subject>Reactors</subject><subject>remediation</subject><subject>silica</subject><subject>Silicon dioxide</subject><subject>Sintering, pelletization, granulation</subject><subject>Solid-solid systems</subject><subject>Spectroscopy, Fourier Transform Infrared</subject><subject>surface area</subject><subject>thermal analysis</subject><subject>transmission electron microscopy</subject><subject>X-ray photoelectron spectroscopy</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc1uEzEUhS0EoqHwCIA3CDYz-G9m7BVCpQWkSiyga8tjXzeOxuNgTyolT4-jBNjBypL1nXPPvQehl5S0lND-_abdrM0hmqVlhNKWDC1h4hFaUTnwhnPeP0YrwolouFTiAj0rZUMIoUMnnqILRiVhjPAVip_gPhtnlpBmnDx2YM2YU0wubNcw7ycMyxoyHvd4NnPCB8ipeTATzAsOuWpCjGkMUziAw2HGEUrappx2BZf6aw2OweZUqlmG8hw98WYq8OL8XqK7m-sfV1-a22-fv159vG2skHxpPPVU9M462o22t8KNo1NudN4Jr5ii1BrjvRKiZ5555xSxqusEUXUryXvJL9Hbk-82p587KIuOoViYJjNDjaYVYbynUopKvvsnSYeheg60oxXtTuhxn5LB620O0eS9pkQfO9Ebfe5EHzvRZNC1k6p7dR6xGyO4P6rfJVTgzRkwxZrJZzPbUP5yoieCy2OA1yfOm6TNfa7M3fc6qau9KjHIrhIfTgTU4z4EyLrYALMFFzLYRbsU_hP2F5eguHo</recordid><startdate>20111015</startdate><enddate>20111015</enddate><creator>Qiu, Xinhong</creator><creator>Fang, Zhanqiang</creator><creator>Liang, Bin</creator><creator>Gu, Fenglong</creator><creator>Xu, Zhencheng</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>7ST</scope><scope>7U7</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20111015</creationdate><title>Degradation of decabromodiphenyl ether by nano zero-valent iron immobilized in mesoporous silica microspheres</title><author>Qiu, Xinhong ; Fang, Zhanqiang ; Liang, Bin ; Gu, Fenglong ; Xu, Zhencheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c483t-f1f146dcd15bc6c4dbbd9dbdfd4f92911caaff94462f2fdd90c95540980283683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Agglomeration</topic><topic>Applied sciences</topic><topic>Atmospheric pollution</topic><topic>Chemical engineering</topic><topic>Decabromodiphenyl ether</topic><topic>Degradation</topic><topic>Ethers</topic><topic>Exact sciences and technology</topic><topic>Fourier transform infrared spectroscopy</topic><topic>Halogenated Diphenyl Ethers - chemistry</topic><topic>Iron</topic><topic>Iron - chemistry</topic><topic>longevity</topic><topic>magnetic separation</topic><topic>Mesoporous silica microspheres</topic><topic>Metal Nanoparticles - chemistry</topic><topic>Microscopy, Electron, Transmission</topic><topic>Microspheres</topic><topic>Nano zero-valent iron</topic><topic>Nanomaterials</topic><topic>Nanoparticles</topic><topic>Nanostructure</topic><topic>particle size</topic><topic>Pollution</topic><topic>Reactors</topic><topic>remediation</topic><topic>silica</topic><topic>Silicon dioxide</topic><topic>Sintering, pelletization, granulation</topic><topic>Solid-solid systems</topic><topic>Spectroscopy, Fourier Transform Infrared</topic><topic>surface area</topic><topic>thermal analysis</topic><topic>transmission electron microscopy</topic><topic>X-ray photoelectron spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiu, Xinhong</creatorcontrib><creatorcontrib>Fang, Zhanqiang</creatorcontrib><creatorcontrib>Liang, Bin</creatorcontrib><creatorcontrib>Gu, Fenglong</creatorcontrib><creatorcontrib>Xu, Zhencheng</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiu, Xinhong</au><au>Fang, Zhanqiang</au><au>Liang, Bin</au><au>Gu, Fenglong</au><au>Xu, Zhencheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Degradation of decabromodiphenyl ether by nano zero-valent iron immobilized in mesoporous silica microspheres</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2011-10-15</date><risdate>2011</risdate><volume>193</volume><spage>70</spage><epage>81</epage><pages>70-81</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>► Reactive mesoporous silica spheres (SiO
2@FeOOH@Fe) was synthesized. ► SiO
2@FeOOH@Fe presented a great capability of removing BDE209. ► The importance of hydrogen ion in removing BDE209 by SiO
2@FeOOH@Fe has been proved. ► SiO
2@FeOOH@Fe was agglomeration-resisting and good performances in magnetic separation.
The agglomeration of nanoparticles reduces the surface area and reactivity of nano zero-valent iron (NZVI). In this paper, highly dispersive and reactive NZVI immobilized in mesoporous silica microspheres covered with FeOOH was synthesized to form reactive mesoporous silica microspheres (SiO
2@FeOOH@Fe). The characteristics of SiO
2@FeOOH@Fe were analyzed by transmission electron microscopy, Fourier transform infrared spectroscopy simultaneous thermal analysis, X-ray photoelectron spectroscopy, and Brunnaer–Emmett–Teller surface area analysis. The mean particle size of the reactive mesoporous silica microspheres was 450
nm, and its specific surface area was 383.477
m
2
g
−1. The degradation of dcabromodiphenyl ether (BDE209) was followed pseudo-first-order kinetics, and the observed reaction rate constant could be improved by increasing the SiO
2@FeOOH@Fe dosage and by decreasing the initial BDE209 concentration. The stability and longevity of the immobilized Fe nanoparticles were evaluated by repeatedly renewing the BDE209 solution in the reactor. The stable degradation of BDE209 by SiO
2@FeOOH@Fe was observed within 10 cycles. Agglomeration-resistance and magnetic separation of SiO
2@FeOOH@Fe were also performed. The improved dispersion of SiO
2@FeOOH@Fe in solution after one-month storage and its good performance in magnetic separation indicated that SiO
2@FeOOH@Fe has the potential to be efficiently applied to environmental remediation.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><pmid>21802203</pmid><doi>10.1016/j.jhazmat.2011.07.024</doi><tpages>12</tpages></addata></record> |
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| ispartof | Journal of hazardous materials, 2011-10, Vol.193, p.70-81 |
| issn | 0304-3894 1873-3336 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Agglomeration Applied sciences Atmospheric pollution Chemical engineering Decabromodiphenyl ether Degradation Ethers Exact sciences and technology Fourier transform infrared spectroscopy Halogenated Diphenyl Ethers - chemistry Iron Iron - chemistry longevity magnetic separation Mesoporous silica microspheres Metal Nanoparticles - chemistry Microscopy, Electron, Transmission Microspheres Nano zero-valent iron Nanomaterials Nanoparticles Nanostructure particle size Pollution Reactors remediation silica Silicon dioxide Sintering, pelletization, granulation Solid-solid systems Spectroscopy, Fourier Transform Infrared surface area thermal analysis transmission electron microscopy X-ray photoelectron spectroscopy |
| title | Degradation of decabromodiphenyl ether by nano zero-valent iron immobilized in mesoporous silica microspheres |
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