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 暨南大学环境学院2018年学术报告(11)

信息发布:环境学院 [2018-10-09]

报告题目Environmental and Energy Applications of Photocatalysis: 

     Challenges and Opportunities

报 告 人:Wonyong Choi 教授

时      间:2018年10月15日(星期一)下午 15:30 

地      点:暨南大学番禺校区学院楼1044会议室

主 持 人:陈达 教授

 

报告人简介:

    Wonyong Choi,现任韩国浦项科技大学环境科学与工程学院教授,2006年获得韩国青年科学家奖,2013年当选为韩国科学院院士,2014年入选英国化学学会会员。1996年于美国加州理工学院环境科学专业获得博士学位,1996-1998年在美国NASA/Caltech Jet Propulsion Laboratory实验室从事博士后研究,1998年进入韩国浦项科技大学环境科学与工程学院工作,曾获得“KAST Science and Technology Award”奖;KIST Excellent Researcher Award奖;“青年科学家奖”等。至今已经发表学术论文280多篇论文, H因子83。

   Wonyong Choi教授目前担任Environmental Science &Technology期刊副主编,Energy Environ. Sci., ACS Earth & Space Chemistry, Environ. Sci. Technol., J. Phys. Chem., Int. J. Photoenergy 等期刊编辑顾问委员会委员。主要开展半导体光催化在环境与能源方面的应用;光催化产氢;可见光响应光催化剂的研发;水和大气的光催化净化;深度氧化降解(AOPs);环境光化学以及环境中的氧化还原过程等。        


报告摘要:


  The photoinduced electron transfers occurring at the semiconductor surface are the key process of solar photosynthetic and photocatalytic processes. Metal oxides such as TiO2, WO3, and Fe2O3 and polymeric carbon nitride (C3N4) that consist of earth-abundant elements are the most practical base materials for such applications. Semiconductor photocatalysis has been widely applied for environmental remediation of contaminated water and air and the synthesis of solar fuels. Although both processes are based on the same photoinduced charge transfer phenomenon, the specific characteristics required for one are very different from the other. While intensive research activities are focused mainly on the development of new photocatalytic materials, the limitations and challenges in photocatalytic research need to be more seriously considered and studied. In this talk, various semiconductor systems with interfacial heterojunctions will be introduced and discussed for photoelectrochemical and photocatalytic/photosynthetic applications. Each research example will be discussed in view of how the modified semiconductor interface affects the photocatalytic activities and mechanisms. The challenges and efforts that are less addressed in the research community will be also brielfly discussed.


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