An efficient strategy for photocatalytic hydrogen peroxide production over oxygen-enriched graphitic carbon nitride with sodium phosphate

作     者：Yu Zhang Ling Zhang Di Zeng Wenjing Wang Juxue Wang Weimin Wang Wenzhong Wang 张瑜;张玲;曾滴;王文婧;王举雪;王伟民;王文中

作者机构：State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China School of Chemistry and Materials ScienceHangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024ZhejiangChina 

基　　金：国家自然科学基金(51972325 51972327 52172256) 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2022年第43卷第10期

页      码：2690-2698页

摘      要：Photocatalytic hydrogen peroxide(H_(2)O_(2))production is a promising strategy to replace the traditional production processes;however,the inefficient H_(2)O_(2) productivity limits its *** this study,oxygen-rich g-C_(3)N_(4) with abundant nitrogen vacancies(OCN)was synthesized for photocatalytic H_(2)O_(2) production.X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy indicated that oxygen-containing functional groups(–COOH and C–O–C)were *** paramagnetic resonance confirmed the successful introduction of nitrogen *** exhibited efficient photocatalytic H_(2)O_(2) production performance of 1965μmol L^(−1) h^(−1) in air under visible-light *** high H_(2)O_(2) production was attributed to the enhanced adsorption of oxygen,enlarged specific surface area,and promoted carrier *** increased H_(2)O_(2) production rate(5781μmol L^(−1) h^(−1))was achieved in a Na_(3)PO_(4) *** improved performance was attributed to the changed reactive oxygen ***,the adsorbed PO_(4)^(3−) on the surface of the OCN promoted the transfer of holes to the catalyst surface.•O_(2)−obtained by O_(2) reduction reacted with adjacent holes to generate 1O_(2),which could efficiently generate H_(2)O_(2) with ***,PO_(4)^(3−),as a stabilizer,inhibited the decomposition of H_(2)O_(2).

主 题 词：Photocatalysis Hydrogen peroxide production Graphitic carbon nitride Singlet oxygen Sodium phosphate 

学科分类：081702[081702] 081705[081705] 08[工学] 0817[工学-轻工类] 080502[080502] 0805[工学-能源动力学] 

核心收录：

D　O　I：10.1016/S1872-2067(22)64114-7

馆 藏 号：203115115...