Graphene and g-C3N4 Nanosheets Cowrapped Elemental alpha-Sulfur As a Novel Metal-Free Heterojunction Photocatalyst for Bacterial Inactivation under Visible-Light
Publication in refereed journal

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其它資訊
摘要A new class of metal-free heterojunction photocatalysts was prepared by wrapping reduced graphene oxide (RGO) and g-C3N4 (CN) sheets on crystals of cyclooctasulfur (alpha-S-8). Two distinctive structures were fabricated by wrapping RGO and CN sheets in different orders. The first was RGO sheets sandwiched in heterojunction of CN sheets and alpha-S-8 (i.e., CNRGOS(8)), while the second structure was the other way around (i.e., RGOCNS(8)). Both structures exhibited antibacterial activity under visible-light irradiation. CNRGOS(8) showed stronger bacterial inactivation than RGOCNS(8) in aerobic conditions. However, RGOCNS(8) was more active than CNRGOS(8) under anaerobic condition. A possible mechanism was proposed to explain the differences between photocatalytic oxidative inactivation and reductive inactivation. As a proof-of-concept, this work could offer new inroads into exploration and utilization of graphene sheets and g-C3N4 sheets cowrapped nanocomposites for environmental applications.
著者WANG Wanjun, YU Jimmy C, XIA Dehua, WONG Po Keung, LI Yecheng
期刊名稱Environmental Science and Technology
出版年份2013
月份8
日期6
卷號47
期次15
出版社American Chemical Society
頁次8724 - 8732
國際標準期刊號0013-936X
電子國際標準期刊號1520-5851
語言英式英語
Web of Science 學科類別Engineering; Engineering, Environmental; ENGINEERING, ENVIRONMENTAL; Environmental Sciences; ENVIRONMENTAL SCIENCES; Environmental Sciences & Ecology

上次更新時間 2020-19-10 於 02:14