Free-standing CuS–ZnS decorated carbon nanotube films as immobilized photocatalysts for hydrogen production |
| |
| Affiliation: | 1. Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung, 40724, Taiwan, ROC;2. Department of Aerospace and Systems Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung, 40724, Taiwan, ROC;1. Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Gansu Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China;2. College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China;3. Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China;1. Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC;2. Institute of Physics, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan, ROC;1. College of Materials Science and Engineering, Hunan Province Key Laboratory for Spray Deposition Technology and Application, Hunan University, Changsha 410082, People’s Republic of China;2. College of Mechanical Engineering, Hunan University of Arts and Science, Changde 415000, People’s Republic of China;1. Esfarayen University of Technology, Esfarayen, North Khorasan, Iran;2. Surface Coating and Corrosion Department, Institute for Color Science and Technology, Tehran, Iran |
| |
| Abstract: | Free-standing carbon nanotube films (CNTF) with entangled carbon nanotubes (CNT) were used as conductive supports for the preparation of CuS–ZnS/CNTF composite as immobilized photocatalysts for H2 production. The surface morphology, crystalline property, surface chemistry, and optical properties of the CuS–ZnS/CNTF photocatalysts were investigated. The effects of forming CuS–ZnS heterojunction and conductive CNTF on the separation of photogenerated charges and photocatalytic hydrogen production activity of CuS–ZnS/CNTF photocatalysts were evaluated by the photocatalytic hydrogen production tests. Conductive CNT films can prevent the recombination of photogenerated electron–hole pairs. The deposition of CuS nanoparticles on the ZnS/CNTF leads to higher photocatalytic activity which can be attributed to the effective electron–hole separation. Introducing ZnS and CuS makes the photocatalyst surface more hydrophilic. The porous structure contributed to the effective contact between the sacrificing agents and the photocatalysts, leading to enhanced H2 production activity. |
| |
| Keywords: | Carbon nanotube ZnS CuS Photocatalytic hydrogen production Immobilized photocatalyst |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
