文献类型：期刊文献

英文题名：Solar photocatalytic fuel cell using CdS-TiO2 photoanode and air-breathing cathode for wastewater treatment and simultaneous electricity production

作者：Wang, Bin[1];Zhang, Hao[2];Lu, Xiao-Ying[3];Xuan, Jin[2,4];Leung, Michael K. H.[1]

机构：[1]City Univ Hong Kong, Sch Energy & Environm, Abil R&D Energy Res Ctr, Hong Kong, Peoples R China;[2]E China Univ Sci & Technol, Sch Mech & Power Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]Technol & Higher Educ Inst Hong Kong, Fac Sci & Technol, Hong Kong, Peoples R China;[4]Heriot Watt Univ, Sch Engn & Phys Sci, Inst Mech Proc & Energy Engn, Edinburgh EH14 4AS, Midlothian, Scotland

年份：2014

卷号：253

起止页码：174

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20142417810682);WOS:【SCI-EXPANDED(收录号:WOS:000340213600021)】；

基金：The research works presented in this paper were funded by The National Basic Research Program (973 Program) (2014CB748500), the CityU Ability R&D Energy Research Centre (Project No. 7200297), Research Fund for the Doctoral Program of Higher Education of China (20130074120019) and Shanghai Pujiang Program (12PJ1402100). We thank Mr. Surya Avinash Avala for his help in PFC performance measurements.

语种：英文

外文关键词：Photocatalytic fuel cell; Solar activation; Air-breathing cathode; Degradation of wastewater organics; Fuel cell characteristics

摘要：Solar photocatalytic fuel cell (PFC) is a promising technology for environmental-friendly wastewater treatment and simultaneous production of electricity. In this study, PFC was enhanced by using CdS quantum-dot-sensitized TiO2 nanorod array deposited onto FTO glass as effective photoanode. Moreover, gas diffusion electrode was employed to improve oxygen reduction reaction at the cathode. The material characterization shows that an array of 1.2-mu m TiO2 nanorods is decorated with 10-nm CdS quantum dots, which significantly improve solar light harvesting ability. The results of the PFC performance study indicate that light irradiation, acetic acid concentration, electrolyte pH and conductivity have significant influence on the short-circuit current and maximum power density. When the PFC operates at the optimum pH of 4.6, the short-circuit current and maximum power density are 1.79 mA/cm(2) and 1134 mW/cm(2), respectively. It is found that increasing the electrolyte conductivity is an effective approach to improve the PFC performance. The highest short-circuit current of 5.1 mA/cm(2) and maximum power density of 3980 mW/cm(2) are obtained with electrolyte having a conductivity of 63.1-mS/cm. In addition, the test results of various pure and practical organic substances in PFC further suggest that it is feasible to use sunlight as a driving force to clean up wastewater with simultaneous electricity production. (C) 2014 Elsevier B.V. All rights reserved.