Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted Investigation
Bis(4-hydroxyphenyl)methanone (BHPM), a common ultraviolet stabilizer and filter (USF), is extensively added in sunscreens; however, BHPM is proven as an endocrine disruptor, posing a serious threat to aquatic ecology, and BHPM should be then removed. As sulfate radical (SO<sub>4</sub>&l...
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| Format: | Article |
| Language: | English |
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2022-10-01
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| Online Access: | https://www.mdpi.com/2073-4441/14/20/3318 |
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| author | Po-Hsin Mao Ta Cong Khiem Eilhann Kwon Hou-Chien Chang Ha Manh Bui Xiaoguang Duan Hongta Yang Suresh Ghotekar Wei-Hsin Chen Yu-Chih Tsai Kun-Yi Andrew Lin |
| author_facet | Po-Hsin Mao Ta Cong Khiem Eilhann Kwon Hou-Chien Chang Ha Manh Bui Xiaoguang Duan Hongta Yang Suresh Ghotekar Wei-Hsin Chen Yu-Chih Tsai Kun-Yi Andrew Lin |
| author_sort | Po-Hsin Mao |
| collection | DOAJ |
| description | Bis(4-hydroxyphenyl)methanone (BHPM), a common ultraviolet stabilizer and filter (USF), is extensively added in sunscreens; however, BHPM is proven as an endocrine disruptor, posing a serious threat to aquatic ecology, and BHPM should be then removed. As sulfate radical (SO<sub>4</sub><sup>•−</sup>) could be useful for eliminating emerging contaminants, oxone appears as a favorable source reagent of SO<sub>4</sub><sup>•−</sup> for degrading BHPM. Even though cobalt is a useful catalyst for activating oxone to generate SO<sub>4</sub><sup>•−</sup>, it would be even more promising to utilize ambient-visible-light irradiation to enhance oxone activation using cobaltic catalysts. Therefore, in contrast to the conventional cobalt oxide, cobalt titanium oxide (CTO) was investigated for chemical and photocatalytic activation of oxone to eliminate BHPM from water. Especially, a special morphology of nanosheet-assembled configuration of CTO was designed to maximize active surfaces and sites of CTO. Thus, CTO outperforms Co<sub>3</sub>O<sub>4</sub> and TiO<sub>2</sub> in degrading BHPM via oxone activation. Furthermore, the substituent of Ti enabled CTO to enhance absorption of visible light and possessed a much smaller <i>E<sub>g</sub></i>. These photocatalytic properties intensified CTO’s activity for oxone activation. CTO possessed a significantly smaller <i>E<sub>a</sub></i> of degradation of USFs than other catalytic systems. Mechanistic insight for degrading BHPM by CTO + oxone was explicated for identifying contribution of reactive oxygen species to BHPM degradation. The BHPM degradation pathway was also investigated and unveiled in details via the DFT calculation. These results validated that CTO is a superior cobaltic alternative for activating oxone to eliminate BHPM. |
| first_indexed | 2024-03-09T19:22:57Z |
| format | Article |
| id | doaj.art-77d8f94c193b4ffea528a9baf81f609e |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T19:22:57Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
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| series | Water |
| spelling | doaj.art-77d8f94c193b4ffea528a9baf81f609e2023-11-24T03:13:29ZengMDPI AGWater2073-44412022-10-011420331810.3390/w14203318Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted InvestigationPo-Hsin Mao0Ta Cong Khiem1Eilhann Kwon2Hou-Chien Chang3Ha Manh Bui4Xiaoguang Duan5Hongta Yang6Suresh Ghotekar7Wei-Hsin Chen8Yu-Chih Tsai9Kun-Yi Andrew Lin10Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, TaiwanDepartment of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, TaiwanDepartment of Earth Resources and Environmental Engineering, Hanyang University, Seongdong-gu, Seoul 04763, KoreaDepartment of Chemical Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, TaiwanDepartment of Environmental Sciences, Saigon University, Ho Chi Minh 700000, VietnamSchool of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, AustraliaDepartment of Chemical Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, TaiwanDepartment of Chemistry, Smt. Devkiba Mohansinhji Chauhan College of Commerce and Science, University of Mumbai, Silvassa 396230, Dadra & Nagar Haveli (UT), IndiaDepartment of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, TaiwanDepartment of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, TaiwanDepartment of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, TaiwanBis(4-hydroxyphenyl)methanone (BHPM), a common ultraviolet stabilizer and filter (USF), is extensively added in sunscreens; however, BHPM is proven as an endocrine disruptor, posing a serious threat to aquatic ecology, and BHPM should be then removed. As sulfate radical (SO<sub>4</sub><sup>•−</sup>) could be useful for eliminating emerging contaminants, oxone appears as a favorable source reagent of SO<sub>4</sub><sup>•−</sup> for degrading BHPM. Even though cobalt is a useful catalyst for activating oxone to generate SO<sub>4</sub><sup>•−</sup>, it would be even more promising to utilize ambient-visible-light irradiation to enhance oxone activation using cobaltic catalysts. Therefore, in contrast to the conventional cobalt oxide, cobalt titanium oxide (CTO) was investigated for chemical and photocatalytic activation of oxone to eliminate BHPM from water. Especially, a special morphology of nanosheet-assembled configuration of CTO was designed to maximize active surfaces and sites of CTO. Thus, CTO outperforms Co<sub>3</sub>O<sub>4</sub> and TiO<sub>2</sub> in degrading BHPM via oxone activation. Furthermore, the substituent of Ti enabled CTO to enhance absorption of visible light and possessed a much smaller <i>E<sub>g</sub></i>. These photocatalytic properties intensified CTO’s activity for oxone activation. CTO possessed a significantly smaller <i>E<sub>a</sub></i> of degradation of USFs than other catalytic systems. Mechanistic insight for degrading BHPM by CTO + oxone was explicated for identifying contribution of reactive oxygen species to BHPM degradation. The BHPM degradation pathway was also investigated and unveiled in details via the DFT calculation. These results validated that CTO is a superior cobaltic alternative for activating oxone to eliminate BHPM.https://www.mdpi.com/2073-4441/14/20/3318UV filtersoxonephotocatalysistitaniumcobaltvisible light |
| spellingShingle | Po-Hsin Mao Ta Cong Khiem Eilhann Kwon Hou-Chien Chang Ha Manh Bui Xiaoguang Duan Hongta Yang Suresh Ghotekar Wei-Hsin Chen Yu-Chih Tsai Kun-Yi Andrew Lin Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted Investigation Water UV filters oxone photocatalysis titanium cobalt visible light |
| title | Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted Investigation |
| title_full | Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted Investigation |
| title_fullStr | Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted Investigation |
| title_full_unstemmed | Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted Investigation |
| title_short | Ambient-Visible-Light-Mediated Enhanced Degradation of UV Stabilizer Bis(4-hydroxyphenyl)methanone by Nanosheet-Assembled Cobalt Titanium Oxide: A Comparative and DFT-Assisted Investigation |
| title_sort | ambient visible light mediated enhanced degradation of uv stabilizer bis 4 hydroxyphenyl methanone by nanosheet assembled cobalt titanium oxide a comparative and dft assisted investigation |
| topic | UV filters oxone photocatalysis titanium cobalt visible light |
| url | https://www.mdpi.com/2073-4441/14/20/3318 |
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