Internal Electric Field Assisted Photocatalytic Generation of Hydrogen Peroxide over BiOCl with HCOOH

doi:10.1021/acssuschemeng.8b01023

	Internal Electric Field Assisted Photocatalytic Generation of Hydrogen Peroxide over BiOCl with HCOOH
	Su, Yang; Zhang, Ling; Wang, Wenzhong; Shao, Dengkui
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2018
卷号	6 期号:7 页码:8704
关键词	BiOCl H2O2 evolution HCOOH Photocatalysis Internal Electric Field
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.8b01023
英文摘要	Hydrogen peroxide (H2O2) is a superb, clean, and versatile reagent. However, large-scale production of H2O2 is manufactured through nongreen methods that motivate people to develop more efficient and green technologies as alternatives. As a novel and green technology used for H2O2 generation, the efficiency of photocatalysis is still far from satisfactory. Here, we demonstrate a novel and efficient path of the generation of H2O2 in BiOCl photocatalysis but not the direct electron reduction of O-2 or hole oxidation of OH- to H2O2. Super high production (685 mu mol/h) of H2O2 by the addition of HCOOH as the hole shuttle was realized over BiOCl nanoplates. In this photocatalytic system, the BiOCl supplied abundant photoinduced holes to initiate HCOO center dot radical. The HCOO center dot further reacts with OH- to center dot OH which is proven to be the source of the H2O2. Apart from HCOOH, O-2 also played important roles. The O-2 not only promoted the reaction through the cycle between Bi3+ and Bi, which decreased the combination of carriers, but also avoided the carbonation of surfaces, thus achieving the high production of H2O2 (1020 mu mol/h). In this work, we shed light on a deep understanding of the photocatalytic evolution of H2O2 in a novel perspective and achieve high production.
学科主题	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000444924500070
资助机构	We acknowledge the financial support from the National Natural Science Foundation of China (51472260, 51772312). ; We acknowledge the financial support from the National Natural Science Foundation of China (51472260, 51772312).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24828]
专题	中国科学院上海硅酸盐研究所
作者单位	Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China; Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Su, Yang,Zhang, Ling,Wang, Wenzhong,et al. Internal Electric Field Assisted Photocatalytic Generation of Hydrogen Peroxide over BiOCl with HCOOH[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(7):8704, 8710.
APA	Su, Yang,Zhang, Ling,Wang, Wenzhong,&Shao, Dengkui.(2018).Internal Electric Field Assisted Photocatalytic Generation of Hydrogen Peroxide over BiOCl with HCOOH.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(7),8704.
MLA	Su, Yang,et al."Internal Electric Field Assisted Photocatalytic Generation of Hydrogen Peroxide over BiOCl with HCOOH".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.7(2018):8704.