Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes | |
Minh-Thuan Pham2; Dai-Phat Bui3; Lin, In-Fu2; Nguyen Hoang Phuong1,3; Huang, Yu6; Cao, Junji6; You, Sheng-Jie2,4,5; Wang, Ya-Fen2,4,5 | |
刊名 | ENVIRONMENTAL TECHNOLOGY & INNOVATION
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2020-11-01 | |
卷号 | 20页码:12 |
关键词 | Air treatment Formaldehyde Gold Photocatalysis Surface plasmon resonance ZnSn(OH)(6) |
ISSN号 | 2352-1864 |
DOI | 10.1016/j.eti.2020.101112 |
通讯作者 | Wang, Ya-Fen(yfwang@cycu.edu.tw) |
英文摘要 | The increase of formaldehyde in the air causes many problems in the environment. The photocatalytic method is green, inexpensive, high sufficiency, but challenging to use because of photocatalysts' wide bandgap working only under the UV light, which is accounted for less than 5% of the sunlight. Here, gold-assisted ZnSn(OH)(6) microcubes (Au:cZHS) were produced by a hydrothermal process of cZHS, a well-known catalyst for NOx and VOCs removal. The existence and unique morphology of the Au:cZHS composites were confirmed by the characterizations of X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), Raman spectroscopy, field-emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM). The band structure and charge-transfer processes of the materials were evaluated from the results of the UV-Vis diffuse reflectance spectroscopy (DRS), electrochemical impedance spectroscopy (EIS), and Mott-Schottky. These results indicated the Au:cZHS composites have a high sufficiency of charge transport and near-visible light absorption. The electron spin resonance (ESR) was also used to determine reactive oxygen species producing from photocatalytic reactions. In addition, the reaction rates and apparent quantum efficiency (AQE) were calculated for a better comparison with other studies. In addition, the 10% Au:cZHS removed more than 70% of 1 ppb formaldehyde (HCHO) under solar light. These results indicate that the Au:cZHS is a promising photocatalyst for air treatment. (C) 2020 Published by Elsevier B.V. |
资助项目 | Chung Yuan Christian University, Taiwan[109609432] ; Chung Yuan Christian University ; Faculty of Materials Science, Research and Development Center for Membrane Technology[Chung-Li 320] ; Ho Chi Minh City University of Technology |
WOS研究方向 | Biotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000597139100004 |
资助机构 | Chung Yuan Christian University, Taiwan ; Chung Yuan Christian University ; Faculty of Materials Science, Research and Development Center for Membrane Technology ; Ho Chi Minh City University of Technology |
内容类型 | 期刊论文 |
源URL | [http://ir.ieecas.cn/handle/361006/15727] ![]() |
专题 | 地球环境研究所_粉尘与环境研究室 |
通讯作者 | Wang, Ya-Fen |
作者单位 | 1.Ho Chi Minh City Univ Food Ind HUFI, Fac Environm Nat Resources & Climate Change, Ho Chi Minh City 700000, Vietnam 2.Chung Yuan Christian Univ, Dept Environm Engn, Taoyuan 32023, Taiwan 3.Univ Sci, Fac Mat Sci & Technol, VNU HCM, Ho Chi Minh City 700000, Vietnam 4.Chung Yuan Christian Univ, Ctr Environm Risk Management, Taoyuan 32023, Taiwan 5.Chung Yuan Christian Univ, R&D Ctr Membrane Technol, Taoyuan 32023, Taiwan 6.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China |
推荐引用方式 GB/T 7714 | Minh-Thuan Pham,Dai-Phat Bui,Lin, In-Fu,et al. Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes[J]. ENVIRONMENTAL TECHNOLOGY & INNOVATION,2020,20:12. |
APA | Minh-Thuan Pham.,Dai-Phat Bui.,Lin, In-Fu.,Nguyen Hoang Phuong.,Huang, Yu.,...&Wang, Ya-Fen.(2020).Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes.ENVIRONMENTAL TECHNOLOGY & INNOVATION,20,12. |
MLA | Minh-Thuan Pham,et al."Enhanced near-visible-light photocatalytic removal of formaldehyde over Au-assisted ZnSn(OH)(6) microcubes".ENVIRONMENTAL TECHNOLOGY & INNOVATION 20(2020):12. |
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