Efficient photocatalytic inactivation of E. coli by Mn-CdS/ZnCuInSe/CuInS 2 quantum dots-sensitized TiO 2 nanowires
A novel visible light-driven photocatalyst (represented as Mn-CdS/ZCISe/CIS/TiO ) for the passivation of E. coli was prepared with TiO nanowires as support and using CuInS (CIS) and ZnCuInSe (ZCISe) quantum dots (QDs), as well as Mn-doped CdS (Mn-CdS) nanoparticles (NPs) as sensitizers. The use of C...
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| Veröffentlicht in: | Nanotechnology 2020-09, Vol.31 (39), p.395602 |
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| container_title | Nanotechnology |
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| creator | Geng, Hongchao Jiang, Ning Li, Chenyi Zhu, Xingqi Qiao, Yan Cai, Qingyun |
| description | A novel visible light-driven photocatalyst (represented as Mn-CdS/ZCISe/CIS/TiO
) for the passivation of E. coli was prepared with TiO
nanowires as support and using CuInS
(CIS) and ZnCuInSe (ZCISe) quantum dots (QDs), as well as Mn-doped CdS (Mn-CdS) nanoparticles (NPs) as sensitizers. The use of CIS and ZCISe QDs and Mn-CdS NPs extends the light harvest region to visible light. The photoelectric conversion efficiency was consequently improved, with a photocurrent density of 12.5 mA cm
, about 60 times that of pure TiO
nanowires. The germicidal efficiency of the photocatalyst was assessed by passivation of E. coli, 96% bacteria in 50 ml 10
colony forming units (CFU) ml
solution were killed within 50 min. Besides the high efficiency, the composite has good stability and satisfactory recycling performance. The antibiotic mechanism was also performed by using photoluminescence and a scavenging agent of different active matter, revealing that the photo-generated holes play a major role in the sterilization process. |
| doi_str_mv | 10.1088/1361-6528/ab8d6c |
| format | Article |
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) for the passivation of E. coli was prepared with TiO
nanowires as support and using CuInS
(CIS) and ZnCuInSe (ZCISe) quantum dots (QDs), as well as Mn-doped CdS (Mn-CdS) nanoparticles (NPs) as sensitizers. The use of CIS and ZCISe QDs and Mn-CdS NPs extends the light harvest region to visible light. The photoelectric conversion efficiency was consequently improved, with a photocurrent density of 12.5 mA cm
, about 60 times that of pure TiO
nanowires. The germicidal efficiency of the photocatalyst was assessed by passivation of E. coli, 96% bacteria in 50 ml 10
colony forming units (CFU) ml
solution were killed within 50 min. Besides the high efficiency, the composite has good stability and satisfactory recycling performance. The antibiotic mechanism was also performed by using photoluminescence and a scavenging agent of different active matter, revealing that the photo-generated holes play a major role in the sterilization process.</description><identifier>ISSN: 0957-4484</identifier><identifier>EISSN: 1361-6528</identifier><identifier>DOI: 10.1088/1361-6528/ab8d6c</identifier><identifier>PMID: 32340006</identifier><language>eng</language><publisher>England</publisher><subject>Anti-Bacterial Agents - chemistry ; Anti-Bacterial Agents - pharmacology ; Cadmium Compounds - chemistry ; Catalysis ; Copper - chemistry ; Escherichia coli - drug effects ; Escherichia coli - growth & development ; Indium - chemistry ; Manganese - chemistry ; Microbial Viability - drug effects ; Nanowires ; Photochemotherapy - methods ; Quantum Dots ; Selenium - chemistry ; Sulfides - chemistry ; Titanium - chemistry ; Titanium - pharmacology</subject><ispartof>Nanotechnology, 2020-09, Vol.31 (39), p.395602</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1116-867bcabbf1fa8bc3baaf242e4463256d75497ea4d67da99eae4155d1e0df1bcf3</citedby><cites>FETCH-LOGICAL-c1116-867bcabbf1fa8bc3baaf242e4463256d75497ea4d67da99eae4155d1e0df1bcf3</cites><orcidid>0000-0002-0867-5905</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32340006$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Geng, Hongchao</creatorcontrib><creatorcontrib>Jiang, Ning</creatorcontrib><creatorcontrib>Li, Chenyi</creatorcontrib><creatorcontrib>Zhu, Xingqi</creatorcontrib><creatorcontrib>Qiao, Yan</creatorcontrib><creatorcontrib>Cai, Qingyun</creatorcontrib><title>Efficient photocatalytic inactivation of E. coli by Mn-CdS/ZnCuInSe/CuInS 2 quantum dots-sensitized TiO 2 nanowires</title><title>Nanotechnology</title><addtitle>Nanotechnology</addtitle><description>A novel visible light-driven photocatalyst (represented as Mn-CdS/ZCISe/CIS/TiO
) for the passivation of E. coli was prepared with TiO
nanowires as support and using CuInS
(CIS) and ZnCuInSe (ZCISe) quantum dots (QDs), as well as Mn-doped CdS (Mn-CdS) nanoparticles (NPs) as sensitizers. The use of CIS and ZCISe QDs and Mn-CdS NPs extends the light harvest region to visible light. The photoelectric conversion efficiency was consequently improved, with a photocurrent density of 12.5 mA cm
, about 60 times that of pure TiO
nanowires. The germicidal efficiency of the photocatalyst was assessed by passivation of E. coli, 96% bacteria in 50 ml 10
colony forming units (CFU) ml
solution were killed within 50 min. Besides the high efficiency, the composite has good stability and satisfactory recycling performance. The antibiotic mechanism was also performed by using photoluminescence and a scavenging agent of different active matter, revealing that the photo-generated holes play a major role in the sterilization process.</description><subject>Anti-Bacterial Agents - chemistry</subject><subject>Anti-Bacterial Agents - pharmacology</subject><subject>Cadmium Compounds - chemistry</subject><subject>Catalysis</subject><subject>Copper - chemistry</subject><subject>Escherichia coli - drug effects</subject><subject>Escherichia coli - growth & development</subject><subject>Indium - chemistry</subject><subject>Manganese - chemistry</subject><subject>Microbial Viability - drug effects</subject><subject>Nanowires</subject><subject>Photochemotherapy - methods</subject><subject>Quantum Dots</subject><subject>Selenium - chemistry</subject><subject>Sulfides - chemistry</subject><subject>Titanium - chemistry</subject><subject>Titanium - pharmacology</subject><issn>0957-4484</issn><issn>1361-6528</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kM1OAjEYRRujEUT3rkxfYJh2ptPpLA1BJcGwADduJl__Yg20OO1o8OkFUVY3uTfnLg5Ct5SMKREipyWnGa8KkYMUmqszNDxV52hImqrOGBNsgK5ifCeEUlHQSzQoi5IRQvgQxam1TjnjE96-hRQUJFjvklPYeVDJfUJyweNg8XSMVVg7LHf42WcTvcxf_aSf-aXJfwMX-KMHn_oN1iHFLBofXXLfRuOVW-xXDz58uc7Ea3RhYR3NzV-O0MvDdDV5yuaLx9nkfp4pSinPBK-lAikttSCkKiWALVhhGONlUXFdV6ypDTDNaw1NY8AwWlWaGqItlcqWI0SOv6oLMXbGttvObaDbtZS0B3_tQVZ7kNUe_e2RuyOy7eXG6BPwL6z8ASdTbXQ</recordid><startdate>20200925</startdate><enddate>20200925</enddate><creator>Geng, Hongchao</creator><creator>Jiang, Ning</creator><creator>Li, Chenyi</creator><creator>Zhu, Xingqi</creator><creator>Qiao, Yan</creator><creator>Cai, Qingyun</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-0867-5905</orcidid></search><sort><creationdate>20200925</creationdate><title>Efficient photocatalytic inactivation of E. coli by Mn-CdS/ZnCuInSe/CuInS 2 quantum dots-sensitized TiO 2 nanowires</title><author>Geng, Hongchao ; Jiang, Ning ; Li, Chenyi ; Zhu, Xingqi ; Qiao, Yan ; Cai, Qingyun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1116-867bcabbf1fa8bc3baaf242e4463256d75497ea4d67da99eae4155d1e0df1bcf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anti-Bacterial Agents - chemistry</topic><topic>Anti-Bacterial Agents - pharmacology</topic><topic>Cadmium Compounds - chemistry</topic><topic>Catalysis</topic><topic>Copper - chemistry</topic><topic>Escherichia coli - drug effects</topic><topic>Escherichia coli - growth & development</topic><topic>Indium - chemistry</topic><topic>Manganese - chemistry</topic><topic>Microbial Viability - drug effects</topic><topic>Nanowires</topic><topic>Photochemotherapy - methods</topic><topic>Quantum Dots</topic><topic>Selenium - chemistry</topic><topic>Sulfides - chemistry</topic><topic>Titanium - chemistry</topic><topic>Titanium - pharmacology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Geng, Hongchao</creatorcontrib><creatorcontrib>Jiang, Ning</creatorcontrib><creatorcontrib>Li, Chenyi</creatorcontrib><creatorcontrib>Zhu, Xingqi</creatorcontrib><creatorcontrib>Qiao, Yan</creatorcontrib><creatorcontrib>Cai, Qingyun</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Nanotechnology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Geng, Hongchao</au><au>Jiang, Ning</au><au>Li, Chenyi</au><au>Zhu, Xingqi</au><au>Qiao, Yan</au><au>Cai, Qingyun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Efficient photocatalytic inactivation of E. coli by Mn-CdS/ZnCuInSe/CuInS 2 quantum dots-sensitized TiO 2 nanowires</atitle><jtitle>Nanotechnology</jtitle><addtitle>Nanotechnology</addtitle><date>2020-09-25</date><risdate>2020</risdate><volume>31</volume><issue>39</issue><spage>395602</spage><pages>395602-</pages><issn>0957-4484</issn><eissn>1361-6528</eissn><abstract>A novel visible light-driven photocatalyst (represented as Mn-CdS/ZCISe/CIS/TiO
) for the passivation of E. coli was prepared with TiO
nanowires as support and using CuInS
(CIS) and ZnCuInSe (ZCISe) quantum dots (QDs), as well as Mn-doped CdS (Mn-CdS) nanoparticles (NPs) as sensitizers. The use of CIS and ZCISe QDs and Mn-CdS NPs extends the light harvest region to visible light. The photoelectric conversion efficiency was consequently improved, with a photocurrent density of 12.5 mA cm
, about 60 times that of pure TiO
nanowires. The germicidal efficiency of the photocatalyst was assessed by passivation of E. coli, 96% bacteria in 50 ml 10
colony forming units (CFU) ml
solution were killed within 50 min. Besides the high efficiency, the composite has good stability and satisfactory recycling performance. The antibiotic mechanism was also performed by using photoluminescence and a scavenging agent of different active matter, revealing that the photo-generated holes play a major role in the sterilization process.</abstract><cop>England</cop><pmid>32340006</pmid><doi>10.1088/1361-6528/ab8d6c</doi><orcidid>https://orcid.org/0000-0002-0867-5905</orcidid></addata></record> |
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| source | MEDLINE; IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Anti-Bacterial Agents - chemistry Anti-Bacterial Agents - pharmacology Cadmium Compounds - chemistry Catalysis Copper - chemistry Escherichia coli - drug effects Escherichia coli - growth & development Indium - chemistry Manganese - chemistry Microbial Viability - drug effects Nanowires Photochemotherapy - methods Quantum Dots Selenium - chemistry Sulfides - chemistry Titanium - chemistry Titanium - pharmacology |
| title | Efficient photocatalytic inactivation of E. coli by Mn-CdS/ZnCuInSe/CuInS 2 quantum dots-sensitized TiO 2 nanowires |
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