g-C3N4 doping TiO2 recovered from spent catalyst for H2 evolution from water

doi:10.1016/j.ijhydene.2023.01.296

	g-C3N4 doping TiO2 recovered from spent catalyst for H2 evolution from water
	Jing, Xiaoqing 1; Zhang, Yan 1,2; Yang, Weiting 1; Liu, Qing3 ; Zhao, Huaqing 1; Xie, Hongbo 1; Wang, Wenqi 1; Zhang, Mingzhi 1; Lu, Haita 1; Akanyange, Stephen Nyabire 1; Wang, Xiutong 4; Crittenden, John 5; Lyu, Xianjun 3; Chang, Hui 6
	2023-06-05
发表期刊	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN	0360-3199
卷号	48 期号:48 页码:18338-18351
通讯作者	Zhang, Yan([email protected]) ; Wang, Xiutong([email protected])
摘要	Spent catalysts of selective catalytic reduction (SCR) contain a high content of TiO2 (>70 wt %). The effective recovery of TiO2 from spent SCR catalysts and its reuse in photocatalytic hydrogen production is of great importance for environmental protection. In this study, the recovered TiO2 from the spent SCR catalyst was recovered by the alkali washing method, and the purity of the recovered TiO2 reached 94.7%. g-C3N4 as a co-catalyst and enhanced the separation efficiency of the photogenerated electron-hole pairs of the TiO2 photocatalyst. The composite photocatalyst R-TiO2/g-C3N4 prepared by directly mixing the recovered TiO2 with g-C3N4 significantly improved the photocatalytic activity. The exper-imental design of the photocatalyst synthesis was optimized using the Design Expert software. The results showed that the recovered TiO2 was 0.334 g when the g-C3N4 was 0.046 g and the ultrasonic time was 163 min. Moreover, the hydrogen production rate reached 443.105 mmol g-1 h-1 within 4 h.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词	Spent SCR catalyst Recovery TiO2 Photocatalytic hydrogen evolution Response surface methodology
DOI	10.1016/j.ijhydene.2023.01.296
收录类别	SCI
语种	英语
资助项目	Shandong Society for Environmental Science[202017]; Shandong Provincial Natural Science Foundation[ZR 202103010716]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS记录号	WOS:000999150900001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	PHOTOCATALYTIC H-2 EVOLUTION ; HYDROGEN-PRODUCTION ; FACILE SYNTHESIS ; WASTE-WATER ; REDUCTION ; PERFORMANCE ; OPTIMIZATION ; GO
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182220
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhang, Yan; Wang, Xiutong
作者单位	1.Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Qingdao 266590, Peoples R China 2.Shandong Univ Sci & Technol, Inst Yellow River Delta Earth Surface Proc & Ecol, Qingdao 266590, Peoples R China 3.Shandong Univ Sci & Technol, Coll Chem & Biol Engn, Qingdao 266590, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 5.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA 6.Shandong Univ Sci & Technol, Coll Elect & Automat Engn, Qingdao 26590, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Jing, Xiaoqing,Zhang, Yan,Yang, Weiting,et al. g-C3N4 doping TiO2 recovered from spent catalyst for H2 evolution from water[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2023,48(48):18338-18351.
APA	Jing, Xiaoqing.,Zhang, Yan.,Yang, Weiting.,Liu, Qing.,Zhao, Huaqing.,...&Chang, Hui.(2023).g-C3N4 doping TiO2 recovered from spent catalyst for H2 evolution from water.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,48(48),18338-18351.
MLA	Jing, Xiaoqing,et al."g-C3N4 doping TiO2 recovered from spent catalyst for H2 evolution from water".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 48.48(2023):18338-18351.