气候变化领域集成服务门户(CCPortal): Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light

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DOI	10.1016/j.cej.2021.131209
	Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light
	Zhang, Xiao-Yu; Wang, Jing-Jing; Li, Ping; Tan, Zhao-Yi; Zeng, Jun-Hui; He, Yan-Rong; Habibul, Nuzahat
通讯作者	He, YR (通讯作者)，China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621000, Sichuan, Peoples R China. ; Habibul, N (通讯作者)，Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Peoples R China.
发表日期	2022
ISSN	1385-8947
EISSN	1873-3212
卷号	428
英文摘要	In the present research, WO3/g-C3N4 composites were prepared and used for the photocatalytic reduction of U (VI). The coupling of WO3 and g-C3N4 leads to the formation of the Z-scheme type-heterojunction structure of WO3/g-C3N4, enhancing the visible-light absorption, the separation efficiency of photo-generated carriers, and subsequently the photocatalytic activity. Compared with WO3 and g-C3N4, the as-prepared WO3/g-C3N4 composites displayed a high photocatalytic performance for U(VI) removal under pH 5.0-6.0. The maximum U(VI) removal efficiency was obtained on WO3/g-C3N4(1:6), which was 1.83- and 4.58-times fold than g-C3N4 and WO3, respectively. The maximum amount of U(VI) removed by WO3/g-C3N4 composite reached 2250 mg/g. The TEM images, XPS spectrum, and XRD spectra confirmed that the U(VI) was photo-reduced to U(IV) in the form of UO2. ESR spin trapping and scavenging tests showed that center dot O-2(-) was the dominating active component for U(VI) reduction, while center dot OH displayed a minor effect on U(VI) reduction.
关键词	URANIUM EVOLUTION WO3
英文关键词	Uranium; WO3/-C3N4; Photocatalytic; Reduction
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000728529600001
来源期刊	CHEMICAL ENGINEERING JOURNAL
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254450
作者单位	[Zhang, Xiao-Yu; Tan, Zhao-Yi; Zeng, Jun-Hui; He, Yan-Rong] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621000, Sichuan, Peoples R China; [Zhang, Xiao-Yu; Habibul, Nuzahat] Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Peoples R China; [Wang, Jing-Jing; Li, Ping] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiao-Yu,Wang, Jing-Jing,Li, Ping,et al. Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light[J]. 中国科学院西北生态环境资源研究院,2022,428.
APA	Zhang, Xiao-Yu.,Wang, Jing-Jing.,Li, Ping.,Tan, Zhao-Yi.,Zeng, Jun-Hui.,...&Habibul, Nuzahat.(2022).Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light.CHEMICAL ENGINEERING JOURNAL,428.
MLA	Zhang, Xiao-Yu,et al."Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light".CHEMICAL ENGINEERING JOURNAL 428(2022).