Flower-Shaped C-Dots/Co3O4{111} Constructed with Dual-Reaction Centers for Enhancement of Fenton-Like Reaction Activity and Peroxymonosulfate Conversion to Sulfate Radical
Novel flower-shaped C-dots/Co3O4{111} with dual-reaction centers were constructed to improve the Fenton-like reaction activity and peroxymonosulfate (PMS) conversion to sulfate radicals. Due to the exposure of a high surface area and Co3O4{111} facets, flower-shaped C-dots/Co3O4{111} could provide m...
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description | Novel flower-shaped C-dots/Co3O4{111} with dual-reaction centers were constructed to improve the Fenton-like reaction activity and peroxymonosulfate (PMS) conversion to sulfate radicals. Due to the exposure of a high surface area and Co3O4{111} facets, flower-shaped C-dots/Co3O4{111} could provide more Co(II) for PMS activation than traditional spherical Co3O4{110}. Meanwhile, PMS was preferred for adsorption on Co3O4{111} facets because of a high adsorption energy and thereby facilitated the electron transfer from Co(II) to PMS. More importantly, the Co–O–C linkage between C-dots and Co3O4{111} induced the formation of the dual-reaction center, which promoted the production of reactive organic radicals (R•). PMS could be directly reduced to SO4−• by R• over C-dots. On the other hand, electron transferred from R• to Co via Co–O–C linkage could accelerate the redox of Co(II)/(III), avoiding the invalid decomposition of PMS. Thus, C-dots doped on Co3O4{111} improved the PMS conversion rate to SO4−• over the single active site, resulting in high turnover numbers (TONs). In addition, TPR analysis indicated that the optimal content of C-dots doped on Co3O4{111} is 2.5%. More than 99% of antibiotics and dyes were degraded over C-dots/Co3O4{111} within 10 min. Even after six cycles, C-dots/Co3O4{111} still remained a high catalytic activity. |
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Due to the exposure of a high surface area and Co3O4{111} facets, flower-shaped C-dots/Co3O4{111} could provide more Co(II) for PMS activation than traditional spherical Co3O4{110}. Meanwhile, PMS was preferred for adsorption on Co3O4{111} facets because of a high adsorption energy and thereby facilitated the electron transfer from Co(II) to PMS. More importantly, the Co–O–C linkage between C-dots and Co3O4{111} induced the formation of the dual-reaction center, which promoted the production of reactive organic radicals (R•). PMS could be directly reduced to SO4−• by R• over C-dots. On the other hand, electron transferred from R• to Co via Co–O–C linkage could accelerate the redox of Co(II)/(III), avoiding the invalid decomposition of PMS. Thus, C-dots doped on Co3O4{111} improved the PMS conversion rate to SO4−• over the single active site, resulting in high turnover numbers (TONs). In addition, TPR analysis indicated that the optimal content of C-dots doped on Co3O4{111} is 2.5%. More than 99% of antibiotics and dyes were degraded over C-dots/Co3O4{111} within 10 min. Even after six cycles, C-dots/Co3O4{111} still remained a high catalytic activity.</description><identifier>ISSN: 2073-4344</identifier><identifier>EISSN: 2073-4344</identifier><identifier>DOI: 10.3390/catal11010135</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Adsorption ; Antibiotics ; Carbon ; Catalysts ; Catalytic activity ; Chemical reactions ; Cobalt oxides ; Conversion ; Crystal structure ; Electron transfer ; Morphology ; Quantum dots ; Surfactants</subject><ispartof>Catalysts, 2021-01, Vol.11 (1), p.135</ispartof><rights>2021. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c304t-6d8c01d544ebcc36eb48ae71e714be339eeb051d8efd84746cb0fe19efcc2e7d3</citedby><cites>FETCH-LOGICAL-c304t-6d8c01d544ebcc36eb48ae71e714be339eeb051d8efd84746cb0fe19efcc2e7d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Wen, Zhibin</creatorcontrib><creatorcontrib>Zhu, Qianqian</creatorcontrib><creatorcontrib>Zhou, Jiali</creatorcontrib><creatorcontrib>Zhao, Shudi</creatorcontrib><creatorcontrib>Wang, Jinnan</creatorcontrib><creatorcontrib>Li, Aimin</creatorcontrib><creatorcontrib>Chen, Lifang</creatorcontrib><creatorcontrib>Bian, Weilin</creatorcontrib><title>Flower-Shaped C-Dots/Co3O4{111} Constructed with Dual-Reaction Centers for Enhancement of Fenton-Like Reaction Activity and Peroxymonosulfate Conversion to Sulfate Radical</title><title>Catalysts</title><description>Novel flower-shaped C-dots/Co3O4{111} with dual-reaction centers were constructed to improve the Fenton-like reaction activity and peroxymonosulfate (PMS) conversion to sulfate radicals. Due to the exposure of a high surface area and Co3O4{111} facets, flower-shaped C-dots/Co3O4{111} could provide more Co(II) for PMS activation than traditional spherical Co3O4{110}. Meanwhile, PMS was preferred for adsorption on Co3O4{111} facets because of a high adsorption energy and thereby facilitated the electron transfer from Co(II) to PMS. More importantly, the Co–O–C linkage between C-dots and Co3O4{111} induced the formation of the dual-reaction center, which promoted the production of reactive organic radicals (R•). PMS could be directly reduced to SO4−• by R• over C-dots. On the other hand, electron transferred from R• to Co via Co–O–C linkage could accelerate the redox of Co(II)/(III), avoiding the invalid decomposition of PMS. Thus, C-dots doped on Co3O4{111} improved the PMS conversion rate to SO4−• over the single active site, resulting in high turnover numbers (TONs). In addition, TPR analysis indicated that the optimal content of C-dots doped on Co3O4{111} is 2.5%. More than 99% of antibiotics and dyes were degraded over C-dots/Co3O4{111} within 10 min. Even after six cycles, C-dots/Co3O4{111} still remained a high catalytic activity.</description><subject>Adsorption</subject><subject>Antibiotics</subject><subject>Carbon</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Chemical reactions</subject><subject>Cobalt oxides</subject><subject>Conversion</subject><subject>Crystal structure</subject><subject>Electron transfer</subject><subject>Morphology</subject><subject>Quantum dots</subject><subject>Surfactants</subject><issn>2073-4344</issn><issn>2073-4344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpVUU1LAzEQXUTBUnv0HvAcmzTZjx7LtlWhUGn1vGSTWbp1m9Qk21rEX-SfNKVFdGbgDW8eMzAvim4puWdsSPpSeNFQSkKy-CLqDEjKMGecX_7pr6Oec2sSYkhZRuNO9D1tzB4sXq7EFhTK8dh4188Nm_NPSukXyo123rbSh-m-9is0bkWDFyCkr41GOWgP1qHKWDTRK6ElbAKFTIWmAY3Gs_oN0K9-FGBX-wMSWqFnsObjsDHauLaphIfjtV1Yd1R6g5ZndiFULUVzE11VonHQO2M3ep1OXvJHPJs_POWjGZaMcI8TlUlCVcw5lFKyBEqeCUhpKF5CeBZASWKqMqhUxlOeyJJUQIdQSTmAVLFudHfau7XmvQXni7VprQ4niwHPCKEJpXFQ4ZNKWuOcharY2noj7KGgpDhaUvyzhP0ArNyClg</recordid><startdate>20210101</startdate><enddate>20210101</enddate><creator>Wen, Zhibin</creator><creator>Zhu, Qianqian</creator><creator>Zhou, Jiali</creator><creator>Zhao, Shudi</creator><creator>Wang, Jinnan</creator><creator>Li, Aimin</creator><creator>Chen, Lifang</creator><creator>Bian, Weilin</creator><general>MDPI AG</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>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</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>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20210101</creationdate><title>Flower-Shaped C-Dots/Co3O4{111} Constructed with Dual-Reaction Centers for Enhancement of Fenton-Like Reaction Activity and Peroxymonosulfate Conversion to Sulfate Radical</title><author>Wen, Zhibin ; Zhu, Qianqian ; Zhou, Jiali ; Zhao, Shudi ; Wang, Jinnan ; Li, Aimin ; Chen, Lifang ; Bian, Weilin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c304t-6d8c01d544ebcc36eb48ae71e714be339eeb051d8efd84746cb0fe19efcc2e7d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adsorption</topic><topic>Antibiotics</topic><topic>Carbon</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Chemical reactions</topic><topic>Cobalt oxides</topic><topic>Conversion</topic><topic>Crystal structure</topic><topic>Electron transfer</topic><topic>Morphology</topic><topic>Quantum dots</topic><topic>Surfactants</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wen, Zhibin</creatorcontrib><creatorcontrib>Zhu, Qianqian</creatorcontrib><creatorcontrib>Zhou, Jiali</creatorcontrib><creatorcontrib>Zhao, Shudi</creatorcontrib><creatorcontrib>Wang, Jinnan</creatorcontrib><creatorcontrib>Li, Aimin</creatorcontrib><creatorcontrib>Chen, Lifang</creatorcontrib><creatorcontrib>Bian, Weilin</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 (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</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>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Catalysts</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wen, Zhibin</au><au>Zhu, Qianqian</au><au>Zhou, Jiali</au><au>Zhao, Shudi</au><au>Wang, Jinnan</au><au>Li, Aimin</au><au>Chen, Lifang</au><au>Bian, Weilin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Flower-Shaped C-Dots/Co3O4{111} Constructed with Dual-Reaction Centers for Enhancement of Fenton-Like Reaction Activity and Peroxymonosulfate Conversion to Sulfate Radical</atitle><jtitle>Catalysts</jtitle><date>2021-01-01</date><risdate>2021</risdate><volume>11</volume><issue>1</issue><spage>135</spage><pages>135-</pages><issn>2073-4344</issn><eissn>2073-4344</eissn><abstract>Novel flower-shaped C-dots/Co3O4{111} with dual-reaction centers were constructed to improve the Fenton-like reaction activity and peroxymonosulfate (PMS) conversion to sulfate radicals. Due to the exposure of a high surface area and Co3O4{111} facets, flower-shaped C-dots/Co3O4{111} could provide more Co(II) for PMS activation than traditional spherical Co3O4{110}. Meanwhile, PMS was preferred for adsorption on Co3O4{111} facets because of a high adsorption energy and thereby facilitated the electron transfer from Co(II) to PMS. More importantly, the Co–O–C linkage between C-dots and Co3O4{111} induced the formation of the dual-reaction center, which promoted the production of reactive organic radicals (R•). PMS could be directly reduced to SO4−• by R• over C-dots. On the other hand, electron transferred from R• to Co via Co–O–C linkage could accelerate the redox of Co(II)/(III), avoiding the invalid decomposition of PMS. Thus, C-dots doped on Co3O4{111} improved the PMS conversion rate to SO4−• over the single active site, resulting in high turnover numbers (TONs). In addition, TPR analysis indicated that the optimal content of C-dots doped on Co3O4{111} is 2.5%. More than 99% of antibiotics and dyes were degraded over C-dots/Co3O4{111} within 10 min. Even after six cycles, C-dots/Co3O4{111} still remained a high catalytic activity.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/catal11010135</doi><oa>free_for_read</oa></addata></record> |
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subjects | Adsorption Antibiotics Carbon Catalysts Catalytic activity Chemical reactions Cobalt oxides Conversion Crystal structure Electron transfer Morphology Quantum dots Surfactants |
title | Flower-Shaped C-Dots/Co3O4{111} Constructed with Dual-Reaction Centers for Enhancement of Fenton-Like Reaction Activity and Peroxymonosulfate Conversion to Sulfate Radical |
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