Photocatalytic reduction of uranium(VI) by magnetic ZnFe2O4 under visible light

被引：241

作者：

Liang, Peng-liang ^{[1
,2
]}

Yuan, Li-yong ^{[1
]}

Deng, Hao ^{[1
]}

Wang, Xu-cong ^{[1
]}

Wang, Lin ^{[1
]}

Li, Zi-jie ^{[1
]}

Luo, Shi-zhong ^{[2
]}

Shi, Wei-qun ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China

[2] Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing Key Lab Bioproc, Beijing 100029, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2020年 / 267卷

基金：

中国国家自然科学基金;

关键词：

Morphology; ZnFe2O4; Uranium(VI) photoreduction; Visible light; Magnetic separation; SULFUR-DOPED G-C3N4; AQUEOUS-SOLUTION; HOLLOW MICROSPHERES; REMOVAL; TIO2; NANOSTRUCTURES; ELIMINATION; U(VI); NANOPARTICLES; DEGRADATION;

D O I：

10.1016/j.apcatb.2020.118688

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Visible-light-driven photocatalytic reduction of uranium(VI) is becoming an effective manner to remove uranium (VI) from waste water, whereas applicable catalysts are extremely limited. Herein, we report a first study of visible-light-driven photocatalytic reduction of uranium(VI) using visible light responsive ZnFe2O4.The ZnFe2O4 catalysts with different morphologies were successfully obtained and well characterized. The photoreduction of uranium(VI) under visible light was achieved over these ZnFe2O4 samples with the activity order of rods > microspheres > nanoparticles. Using ZnFe2O4 rods, for example, the 50 ppm of uranium(VI) was almost completely removed in 60 min, representing one of the most effective visible-light-driven photocatalytic removal. The effects of catalyst dosage, hole scavenger (CH3OH) dosage and solution pH on the photocatalytic reactions, as well as the photoreduction mechanisms were investigated in detail. In addition, ZnFe2O4 rods own good stability, recyclability and magnetic separability. All these features make ZnFe2O4 a promising photocatalyst for radioactive environmental remediation.

引用

页数：9

共 65 条

[1] Photo-degradation of methylene blue: photocatalyst and magnetic investigation of Fe2O3-TiO2 nanoparticles and nanocomposites [J].

Abbasi, Ali ;

Ghanbari, Davood ;

Salavati-Niasari, Masoud ;

Hamadanian, Masood .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2016, 27 (05) :4800-4809

[2] Introduction of amino groups into acid-resistant MOFs for enhanced U(VI) sorption [J].

Bai, Zhi-Qiang ;

Yuan, Li-Yong ;

Zhu, Lin ;

Liu, Zhi-Rong ;

Chu, Sheng-Qi ;

Zheng, Li-Rong ;

Zhang, Jing ;

Chai, Zhi-Fang ;

Shi, Wei-Qun .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (02) :525-534

[3] Visible light-assisted heterogeneous Fenton with ZnFe2O4 for the degradation of Orange II in water [J].

Cai, Chun ;

Zhang, Zhuoyue ;

Liu, Jin ;

Shan, Ni ;

Zhang, Hui ;

Dionysiou, Dionysios D. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 182 :456-468

[4] Photocatalyzed deposition and concentration of soluble uranium(VI) from TiO2 suspensions [J].

Chen, J ;

Ollis, DF ;

Rulkens, WH ;

Bruning, H .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1999, 151 (1-2) :339-349

[5] Interaction mechanism between different facet TiO2 and U(VI): Experimental and density-functional theory investigation [J].

Chen, Ke ;

Chen, Changlun ;

Ren, Xuemei ;

Alsaedi, Ahmed ;

Hayat, Tasawar .

CHEMICAL ENGINEERING JOURNAL, 2019, 359 :944-954

[6] High-yield synthesis and magnetic properties of ZnFe2O4 single crystal nanocubes in aqueous solution [J].

Chen, Zu Peng ;

Fang, Wen Qi ;

Zhang, Bo ;

Yang, Hua Gui .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 550 :348-352

[7] Nanolayered Ti3C2 and SrTiO3 Composites for Photocatalytic Reduction and Removal of Uranium(VI) [J].

Deng, Hao ;

Li, Zi-jie ;

Wang, Lin ;

Yuan, Li-yong ;

Lan, Jian-hui ;

Chang, Zhi-yuan ;

Chai, Zhi-fang ;

Shi, Wei-qun .

ACS APPLIED NANO MATERIALS, 2019, 2 (04) :2283-2294

[8] Morphology controlled hydrothermal synthesis and photocatalytic properties of ZnFe2O4 nanostructures [J].

Dhiman, Manisha ;

Sharma, Rimi ;

Kumar, Vinod ;

Singhal, Sonal .

CERAMICS INTERNATIONAL, 2016, 42 (11) :12594-12605

[9] Enhanced immobilization of U(VI) using a new type of FeS-modified Fe0 core-shell particles [J].

Duan, Jun ;

Ji, Haodong ;

Liu, Wen ;

Zhao, Xiao ;

Han, Bing ;

Tian, Shuting ;

Zhao, Dongye .

CHEMICAL ENGINEERING JOURNAL, 2019, 359 :1617-1628

[10] Photochemical removal of uranium from a phosphate waste solution [J].

Evans, CJ ;

Nicholson, GP ;

Faith, DA ;

Kan, MJ .

GREEN CHEMISTRY, 2004, 6 (04) :196-197

← 1 2 3 4 5 6 7 →