Optimization of Co 3 O 4 surface sites for photo-ozone catalytic mineralization of dichloromethane
Obtaining high removal rate of chlorinated volatile organic compounds (CVOCs) and CO selectivity with a low ratio of O /CVOC and energy consumption is challenging. Dodecylamine was used in this study to create active sites on Co O for photo-ozone catalytic mineralization of dichloromethane (DCM). Am...
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| Veröffentlicht in: | Journal of hazardous materials 2023-06, Vol.452, p.131275 |
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| container_title | Journal of hazardous materials |
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| creator | Chang, Baolin Cao, Tiannan Shen, Zhizhang Zhang, Yipu Wang, Zhenyu Li, Ji Lyu, Jinze |
| description | Obtaining high removal rate of chlorinated volatile organic compounds (CVOCs) and CO
selectivity with a low ratio of O
/CVOC and energy consumption is challenging. Dodecylamine was used in this study to create active sites on Co
O
for photo-ozone catalytic mineralization of dichloromethane (DCM). Amine-Co
O
-450 is a dodecylamine-modified sample with high density of Co
, Co
, and hydroxyl due to its nanosheet structure and exposed (112) facets. The optimized surface significantly enhanced the cleavage of the C-Cl bond at low temperatures. Photocatalysis primarily participated in the oxidation of intermediates following DCM dichlorination and significantly improved CO
selectivity. The respective DCM removal rate and mineralization efficiency of Amine-Co
O
-450 with an O
/DCM molar ratio of 1.27 and one-sun irradiation were 14.9 and 15.0 times higher than the sum of those in the presence of light irradiation or O
alone. This finding indicated that a strong synergistic effect exists between O
and light. |
| format | Article |
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selectivity with a low ratio of O
/CVOC and energy consumption is challenging. Dodecylamine was used in this study to create active sites on Co
O
for photo-ozone catalytic mineralization of dichloromethane (DCM). Amine-Co
O
-450 is a dodecylamine-modified sample with high density of Co
, Co
, and hydroxyl due to its nanosheet structure and exposed (112) facets. The optimized surface significantly enhanced the cleavage of the C-Cl bond at low temperatures. Photocatalysis primarily participated in the oxidation of intermediates following DCM dichlorination and significantly improved CO
selectivity. The respective DCM removal rate and mineralization efficiency of Amine-Co
O
-450 with an O
/DCM molar ratio of 1.27 and one-sun irradiation were 14.9 and 15.0 times higher than the sum of those in the presence of light irradiation or O
alone. This finding indicated that a strong synergistic effect exists between O
and light.</description><identifier>EISSN: 1873-3336</identifier><identifier>PMID: 36989772</identifier><language>eng</language><publisher>Netherlands</publisher><ispartof>Journal of hazardous materials, 2023-06, Vol.452, p.131275</ispartof><rights>Copyright © 2023 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36989772$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chang, Baolin</creatorcontrib><creatorcontrib>Cao, Tiannan</creatorcontrib><creatorcontrib>Shen, Zhizhang</creatorcontrib><creatorcontrib>Zhang, Yipu</creatorcontrib><creatorcontrib>Wang, Zhenyu</creatorcontrib><creatorcontrib>Li, Ji</creatorcontrib><creatorcontrib>Lyu, Jinze</creatorcontrib><title>Optimization of Co 3 O 4 surface sites for photo-ozone catalytic mineralization of dichloromethane</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>Obtaining high removal rate of chlorinated volatile organic compounds (CVOCs) and CO
selectivity with a low ratio of O
/CVOC and energy consumption is challenging. Dodecylamine was used in this study to create active sites on Co
O
for photo-ozone catalytic mineralization of dichloromethane (DCM). Amine-Co
O
-450 is a dodecylamine-modified sample with high density of Co
, Co
, and hydroxyl due to its nanosheet structure and exposed (112) facets. The optimized surface significantly enhanced the cleavage of the C-Cl bond at low temperatures. Photocatalysis primarily participated in the oxidation of intermediates following DCM dichlorination and significantly improved CO
selectivity. The respective DCM removal rate and mineralization efficiency of Amine-Co
O
-450 with an O
/DCM molar ratio of 1.27 and one-sun irradiation were 14.9 and 15.0 times higher than the sum of those in the presence of light irradiation or O
alone. This finding indicated that a strong synergistic effect exists between O
and light.</description><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqFjr0KgzAYAEOhVPvzCuV7AUEba3SWlm4u3SXGiClJPknioE_fpYVunW45jtuQOCsZTSilRUT23r_SNM3YNd-RiBZVWTF2iUnXTEEZtfKg0AIOUCNQaCAHP7uBCwleBelhQAfTiAETXNFKEDxwvQQlwCgrHdc_iV6JUaNDI8PIrTyS7cC1l6cPD-R8vz3rRzLNnZF9OzlluFva7xT9K7wBjoZDOw</recordid><startdate>20230615</startdate><enddate>20230615</enddate><creator>Chang, Baolin</creator><creator>Cao, Tiannan</creator><creator>Shen, Zhizhang</creator><creator>Zhang, Yipu</creator><creator>Wang, Zhenyu</creator><creator>Li, Ji</creator><creator>Lyu, Jinze</creator><scope>NPM</scope></search><sort><creationdate>20230615</creationdate><title>Optimization of Co 3 O 4 surface sites for photo-ozone catalytic mineralization of dichloromethane</title><author>Chang, Baolin ; Cao, Tiannan ; Shen, Zhizhang ; Zhang, Yipu ; Wang, Zhenyu ; Li, Ji ; Lyu, Jinze</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-pubmed_primary_369897723</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chang, Baolin</creatorcontrib><creatorcontrib>Cao, Tiannan</creatorcontrib><creatorcontrib>Shen, Zhizhang</creatorcontrib><creatorcontrib>Zhang, Yipu</creatorcontrib><creatorcontrib>Wang, Zhenyu</creatorcontrib><creatorcontrib>Li, Ji</creatorcontrib><creatorcontrib>Lyu, Jinze</creatorcontrib><collection>PubMed</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chang, Baolin</au><au>Cao, Tiannan</au><au>Shen, Zhizhang</au><au>Zhang, Yipu</au><au>Wang, Zhenyu</au><au>Li, Ji</au><au>Lyu, Jinze</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimization of Co 3 O 4 surface sites for photo-ozone catalytic mineralization of dichloromethane</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2023-06-15</date><risdate>2023</risdate><volume>452</volume><spage>131275</spage><pages>131275-</pages><eissn>1873-3336</eissn><abstract>Obtaining high removal rate of chlorinated volatile organic compounds (CVOCs) and CO
selectivity with a low ratio of O
/CVOC and energy consumption is challenging. Dodecylamine was used in this study to create active sites on Co
O
for photo-ozone catalytic mineralization of dichloromethane (DCM). Amine-Co
O
-450 is a dodecylamine-modified sample with high density of Co
, Co
, and hydroxyl due to its nanosheet structure and exposed (112) facets. The optimized surface significantly enhanced the cleavage of the C-Cl bond at low temperatures. Photocatalysis primarily participated in the oxidation of intermediates following DCM dichlorination and significantly improved CO
selectivity. The respective DCM removal rate and mineralization efficiency of Amine-Co
O
-450 with an O
/DCM molar ratio of 1.27 and one-sun irradiation were 14.9 and 15.0 times higher than the sum of those in the presence of light irradiation or O
alone. This finding indicated that a strong synergistic effect exists between O
and light.</abstract><cop>Netherlands</cop><pmid>36989772</pmid></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 1873-3336 |
| ispartof | Journal of hazardous materials, 2023-06, Vol.452, p.131275 |
| issn | 1873-3336 |
| language | eng |
| recordid | cdi_pubmed_primary_36989772 |
| source | Access via ScienceDirect (Elsevier) |
| title | Optimization of Co 3 O 4 surface sites for photo-ozone catalytic mineralization of dichloromethane |
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