Defects on CoS2−x: Tuning Redox Reactions for Sustainable Degradation of Organic Pollutants
It is important to develop self‐producing reactive oxygen species (ROSs) systems and maintain the continuous and effective degradation of organic pollutants. Herein, for the first time, a system of ultrasound‐treated CoS2−x mixed with Fe2+ is constructed to sustainably release singlet oxygen (1O2) f...
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| Veröffentlicht in: | Angewandte Chemie International Edition 2021-02, Vol.60 (6), p.2903-2908 |
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| creator | Ji, Jiahui Yan, Qingyun Yin, Pengcheng Mine, Shinya Matsuoka, Masaya Xing, Mingyang |
| description | It is important to develop self‐producing reactive oxygen species (ROSs) systems and maintain the continuous and effective degradation of organic pollutants. Herein, for the first time, a system of ultrasound‐treated CoS2−x mixed with Fe2+ is constructed to sustainably release singlet oxygen (1O2) for the effective degradation of various organic pollutants, including dyes, phenols, and antibiotics. Ultrasonic treatment produces defects on the surface of CoS2 which promote the production of ROSs and the circulation of Fe3+/Fe2+. With the help of Co4+/Co3+ exposed on the surface of CoS2−x, the directional conversion of superoxide radical (.O2−) to 1O2 is realized. The CoS2−x/Fe2+ system can degrade organic pollutants efficiently for up to 30 days, which is significantly better than the currently recognized CuPx system ( |
| doi_str_mv | 10.1002/anie.202013015 |
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In the newly constructed CoS2−x/Fe2+ system, sustainably‐released 1O2 was proven to be the main reactive oxygen species, which came from the conversion of .O2− generated after O2 was reduced by electrons on the surface of CoS2−x (oxygen reduction reaction; ORR). Fe2+ promoted the generation of O2− and the decomposition of a small amount of H2O2 produced by ORR. The CoS2−x/Fe2+ system achieved a long‐term effective degradation of organic pollutants for up to 30 days.</description><edition>International ed. in English</edition><identifier>ISSN: 1433-7851</identifier><identifier>EISSN: 1521-3773</identifier><identifier>DOI: 10.1002/anie.202013015</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>Antibiotics ; cobalt ; Cobalt sulfide ; Defects ; heterogeneous catalysis ; Iron ; oxygen ; Phenols ; Pollutants ; Pollution control ; Reactive oxygen species ; Redox reactions ; reduction ; Singlet oxygen ; Stream pollution ; Superoxide ; System effectiveness ; Ultrasonic processing ; Ultrasound ; Water pollution</subject><ispartof>Angewandte Chemie International Edition, 2021-02, Vol.60 (6), p.2903-2908</ispartof><rights>2020 Wiley‐VCH GmbH</rights><rights>2021 Wiley‐VCH GmbH</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-0518-2849</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fanie.202013015$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fanie.202013015$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27923,27924,45573,45574</link.rule.ids></links><search><creatorcontrib>Ji, Jiahui</creatorcontrib><creatorcontrib>Yan, Qingyun</creatorcontrib><creatorcontrib>Yin, Pengcheng</creatorcontrib><creatorcontrib>Mine, Shinya</creatorcontrib><creatorcontrib>Matsuoka, Masaya</creatorcontrib><creatorcontrib>Xing, Mingyang</creatorcontrib><title>Defects on CoS2−x: Tuning Redox Reactions for Sustainable Degradation of Organic Pollutants</title><title>Angewandte Chemie International Edition</title><description>It is important to develop self‐producing reactive oxygen species (ROSs) systems and maintain the continuous and effective degradation of organic pollutants. Herein, for the first time, a system of ultrasound‐treated CoS2−x mixed with Fe2+ is constructed to sustainably release singlet oxygen (1O2) for the effective degradation of various organic pollutants, including dyes, phenols, and antibiotics. Ultrasonic treatment produces defects on the surface of CoS2 which promote the production of ROSs and the circulation of Fe3+/Fe2+. With the help of Co4+/Co3+ exposed on the surface of CoS2−x, the directional conversion of superoxide radical (.O2−) to 1O2 is realized. The CoS2−x/Fe2+ system can degrade organic pollutants efficiently for up to 30 days, which is significantly better than the currently recognized CuPx system (<3 days). Therefore, CoS2−x provides a new choice for the long‐term remediation of organic pollutants in controlling large area river pollution.
In the newly constructed CoS2−x/Fe2+ system, sustainably‐released 1O2 was proven to be the main reactive oxygen species, which came from the conversion of .O2− generated after O2 was reduced by electrons on the surface of CoS2−x (oxygen reduction reaction; ORR). Fe2+ promoted the generation of O2− and the decomposition of a small amount of H2O2 produced by ORR. The CoS2−x/Fe2+ system achieved a long‐term effective degradation of organic pollutants for up to 30 days.</description><subject>Antibiotics</subject><subject>cobalt</subject><subject>Cobalt sulfide</subject><subject>Defects</subject><subject>heterogeneous catalysis</subject><subject>Iron</subject><subject>oxygen</subject><subject>Phenols</subject><subject>Pollutants</subject><subject>Pollution control</subject><subject>Reactive oxygen species</subject><subject>Redox reactions</subject><subject>reduction</subject><subject>Singlet oxygen</subject><subject>Stream pollution</subject><subject>Superoxide</subject><subject>System effectiveness</subject><subject>Ultrasonic processing</subject><subject>Ultrasound</subject><subject>Water pollution</subject><issn>1433-7851</issn><issn>1521-3773</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNo9kMtKw0AUhgdRsFa3rgdcp565ZRJ3pa1aKFZsXcownUxCSpypmQTbN3DtI_okJijdnAv_x7n8CF0TGBEAeqtdaUcUKBAGRJygARGURExKdtrVnLFIJoKco4sQth2fJBAP0NvU5tY0AXuHJ35Ff76-93d43brSFfjFZn7fRW2a0ruAc1_jVRsaXTq9qSye2qLWme5F7HO8rIvuBoOffVW1jXZNuERnua6CvfrPQ_R6P1tPHqPF8mE-GS-iggETUSLAUiFEasBAzjNKJMhUWy61BhEzmWUy7iRrzYabjRSCa5PllFANcfcYG6Kbv7m72n-0NjRq69vadSsV5QknqRTQU-kf9VlW9qB2dfmu64MioHr_VO-fOvqnxk_z2bFjv-1VZpg</recordid><startdate>20210208</startdate><enddate>20210208</enddate><creator>Ji, Jiahui</creator><creator>Yan, Qingyun</creator><creator>Yin, Pengcheng</creator><creator>Mine, Shinya</creator><creator>Matsuoka, Masaya</creator><creator>Xing, Mingyang</creator><general>Wiley Subscription Services, Inc</general><scope>7TM</scope><scope>K9.</scope><orcidid>https://orcid.org/0000-0002-0518-2849</orcidid></search><sort><creationdate>20210208</creationdate><title>Defects on CoS2−x: Tuning Redox Reactions for Sustainable Degradation of Organic Pollutants</title><author>Ji, Jiahui ; Yan, Qingyun ; Yin, Pengcheng ; Mine, Shinya ; Matsuoka, Masaya ; Xing, Mingyang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g3035-850e25559c0c0f4d217079ae47aa05637dd760c0eecb4cb7554acdf212a064333</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Antibiotics</topic><topic>cobalt</topic><topic>Cobalt sulfide</topic><topic>Defects</topic><topic>heterogeneous catalysis</topic><topic>Iron</topic><topic>oxygen</topic><topic>Phenols</topic><topic>Pollutants</topic><topic>Pollution control</topic><topic>Reactive oxygen species</topic><topic>Redox reactions</topic><topic>reduction</topic><topic>Singlet oxygen</topic><topic>Stream pollution</topic><topic>Superoxide</topic><topic>System effectiveness</topic><topic>Ultrasonic processing</topic><topic>Ultrasound</topic><topic>Water pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ji, Jiahui</creatorcontrib><creatorcontrib>Yan, Qingyun</creatorcontrib><creatorcontrib>Yin, Pengcheng</creatorcontrib><creatorcontrib>Mine, Shinya</creatorcontrib><creatorcontrib>Matsuoka, Masaya</creatorcontrib><creatorcontrib>Xing, Mingyang</creatorcontrib><collection>Nucleic Acids Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><jtitle>Angewandte Chemie International Edition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ji, Jiahui</au><au>Yan, Qingyun</au><au>Yin, Pengcheng</au><au>Mine, Shinya</au><au>Matsuoka, Masaya</au><au>Xing, Mingyang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Defects on CoS2−x: Tuning Redox Reactions for Sustainable Degradation of Organic Pollutants</atitle><jtitle>Angewandte Chemie International Edition</jtitle><date>2021-02-08</date><risdate>2021</risdate><volume>60</volume><issue>6</issue><spage>2903</spage><epage>2908</epage><pages>2903-2908</pages><issn>1433-7851</issn><eissn>1521-3773</eissn><abstract>It is important to develop self‐producing reactive oxygen species (ROSs) systems and maintain the continuous and effective degradation of organic pollutants. Herein, for the first time, a system of ultrasound‐treated CoS2−x mixed with Fe2+ is constructed to sustainably release singlet oxygen (1O2) for the effective degradation of various organic pollutants, including dyes, phenols, and antibiotics. Ultrasonic treatment produces defects on the surface of CoS2 which promote the production of ROSs and the circulation of Fe3+/Fe2+. With the help of Co4+/Co3+ exposed on the surface of CoS2−x, the directional conversion of superoxide radical (.O2−) to 1O2 is realized. The CoS2−x/Fe2+ system can degrade organic pollutants efficiently for up to 30 days, which is significantly better than the currently recognized CuPx system (<3 days). Therefore, CoS2−x provides a new choice for the long‐term remediation of organic pollutants in controlling large area river pollution.
In the newly constructed CoS2−x/Fe2+ system, sustainably‐released 1O2 was proven to be the main reactive oxygen species, which came from the conversion of .O2− generated after O2 was reduced by electrons on the surface of CoS2−x (oxygen reduction reaction; ORR). Fe2+ promoted the generation of O2− and the decomposition of a small amount of H2O2 produced by ORR. The CoS2−x/Fe2+ system achieved a long‐term effective degradation of organic pollutants for up to 30 days.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/anie.202013015</doi><tpages>6</tpages><edition>International ed. in English</edition><orcidid>https://orcid.org/0000-0002-0518-2849</orcidid></addata></record> |
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| subjects | Antibiotics cobalt Cobalt sulfide Defects heterogeneous catalysis Iron oxygen Phenols Pollutants Pollution control Reactive oxygen species Redox reactions reduction Singlet oxygen Stream pollution Superoxide System effectiveness Ultrasonic processing Ultrasound Water pollution |
| title | Defects on CoS2−x: Tuning Redox Reactions for Sustainable Degradation of Organic Pollutants |
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