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

doi:10.1016/j.ijhydene.2023.01.296

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	g-C3N4 doping TiO2 recovered from spent catalyst for H2 evolution from water
	Jing, Xiaoqing 6; Zhang, Yan 1,6; Yang, Weiting 6; Liu, Qing 2; Zhao, Huaqing 6; Xie, Hongbo 6; Wang, Wenqi 6; Zhang, Mingzhi 6; Lu, Haita 6; Akanyange, Stephen Nyabire 6
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2023-06-05
卷号	48 期号:48 页码:18338-18351
关键词	Spent SCR catalyst Recovery TiO2 Photocatalytic hydrogen evolution Response surface methodology
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2023.01.296
通讯作者	Zhang, Yan(tougaoktz@163.com) ; Wang, Xiutong(wangxiutong@qdio.ac.cn)
英文摘要	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.
资助项目	Shandong Society for Environmental Science[202017] ; Shandong Provincial Natural Science Foundation[ZR 202103010716]
WOS关键词	PHOTOCATALYTIC H-2 EVOLUTION ; HYDROGEN-PRODUCTION ; FACILE SYNTHESIS ; WASTE-WATER ; REDUCTION ; PERFORMANCE ; OPTIMIZATION ; GO
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000999150900001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/182219]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Zhang, Yan; Wang, Xiutong
作者单位	1.Shandong Univ Sci & Technol, Inst Yellow River Delta Earth Surface Proc & Ecol, Qingdao 266590, Peoples R China 2.Shandong Univ Sci & Technol, Coll Chem & Biol Engn, Qingdao 266590, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 4.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA 5.Shandong Univ Sci & Technol, Coll Elect & Automat Engn, Qingdao 26590, Peoples R China 6.Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Qingdao 266590, Peoples R China
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.