文献类型：期刊文献

英文题名：Carbon nitride nanotubes with in situ grafted hydroxyl groups for highly efficient spontaneous H2O2 production

作者：Zhou, Liang[1,5];Lei, Juying[1,2,5];Wang, Fuchen[6];Wang, Lingzhi[3,4,5];Hoffmann, Michael R.[7];Liu, Yongdi[1,2,5];In, Su-Il[7,8];Zhang, Jinlong[3,4,5]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Joint Int Res Lab Precis Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Shanghai Engn Res Ctr Multimedia Environm Catalys, 130 Meilong Rd, Shanghai 200237, Peoples R China;[6]East China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China;[7]CALTECH, Dept Environm Sci & Engn, Linde Robinson Labs, Pasadena, CA 91125 USA;[8]DGIST, Dept Energy Sci & Engn, 333 Techno Jungang Daero, Dalseong Gun 42988, Daegu, South Korea

年份：2021

卷号：288

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20210809975991);WOS:【SCI-EXPANDED(收录号:WOS:000632996500006)】；

基金：The authors gratefully acknowledge the National Key Research and Development Program (2016YFA0204200), the support of the National Natural Science Foundation of China (22006038, 21777044 and 22076046), the China Postdoctoral Science Foundation (2020M681209), the Science and Technology Commission of Shanghai Municipality (19ZR1472400, 19230711300). This research was also supported by Korean National Research Foundation (2017R1E1A1A01074890).

语种：英文

外文关键词：g-C3N4; Hydroxyl groups; Photocatalysis; Spontaneous; H2O2 production

摘要：An active and inexpensive photocatalyst for H2O2 production is desirable for industrial applications. However, obtaining high photocatalytic activity from metal-free catalysts without the use of sacrificial electron donors is difficult. Herein, g-C3N4 (CN) nanotubes functionalized with surface > OH groups that are grafted in situ were successfully synthesized via a novel alkalinization process. The nanotube structures provide a large surface area and improved mass transfer properties. In situ grafted > OH groups can capture photogenerated holes to promote separation of photogenerated charge, enabling the ready availability of electrons and hydrogen ions for H2O2 production. Further, the surface > OH groups help to suppress H2O2 self-decomposition. Consequently, a high rate of 240.36 mu mol h(-1) g(-1) of H2O2 production can be achieved without sacrificial agents, which is the highest H2O2 production in a spontaneous system for metal-free photocatalysts. This work provides a new strategy for an efficient and spontaneous H2O2 production method using a metal-free CN photocatalyst.