文献类型：期刊文献

英文题名：Robust Photocatalytic H2O2 Production over Inverse Opal g-C3N4 with Carbon Vacancy under Visible Light

作者：Lei, Juying[1,4];Chen, Bin[1];Lv, Weijia[1];Zhou, Liang[1];Wang, Lingzhi[1];Liu, Yongdi[1,4];Zhang, Jinlong[2,3]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2019

卷号：7

期号：19

起止页码：16467

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20193907479613);WOS:【SCI-EXPANDED(收录号:WOS:000489986400069)】；

基金：This work was financially supported by the National Natural Science Foundation of China (21777044), the National Key Research and Development Program (2016YFA0204200), the National Water Pollution Control and Treatment Science and Technology Major Project (2017ZX07207002), and the Fundamental Research Funds for the Central Universities (222201714061, 222201817009, 222201815006, and 222201818014).

语种：英文

外文关键词：graphitic carbon nitride; inverse opal; carbon vacancies; H2O2 production; photocatalysis

摘要：In the field of green chemistry, producing hydrogen peroxide (H2O2) via photocatalysis could be a promising method for obtaining chemical feedstock during industrial and environmental processes. Herein, we simultaneously introduced inverse opal (IO) structure and carbon vacancies (CVs) into carbon nitride to improve H2O2 production by photocatalysis. Experimental results reveal that, after visible light irradiation for 2 h, IO carbon nitride (IO CN-Cv) shows a H2O2 generation value of 325.74 mu M over 1.69, 2.13, and 1.84 times more than the H2O2 generation of bulk CN-Cvs (bulk carbon nitride with Cvs), bulk CN (bulk carbon nitride without Cvs), and nanosheet CN (carbon nitride nanosheet), respectively. On the one hand, the typical IO structure improves the efficiency of visible light absorption and simultaneously provides more surface area for the adsorption of molecular oxygen. Meanwhile, the introduction of Cvs improves the separation ability of carriers. This study offers a new idea for enhanced production of H2O2 using visible light with metal-free materials in the era of energy shortage.