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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:

2021年03期

Page:

24-30

Research Field:

·化学·

Publishing date:

Info

Title:

Construction of BiOCl/UiO-66(Zr)-NH₂ Heterojunction andIts Photocatalytic Degradation of Rhodamine B

Author(s):

Sun Leilei¹; 2; Miao Shengchao¹; 3; Zheng Xiaoni¹; Zha Zhenxing¹; Yang Jing¹; Cui Shihai¹

(1.School of Chemistry and Materials Science,Nanjing Normal University,Jiangsu Collaborative Innovation Center ofBiomedical Functional Materials,Jiangsu Key Laboratory of Biomedical Materials,Nanjing 210023,China)(2.Jiangsu Wuxi Zhongtian Solid Waste Disposal Co.,LTD.,Wuxi 214000,China)(3. Academy of Environmental Planning & Design.(Jiangsu)Co.,LTD.,Nanjing University,Nanjing 210003,China)

Keywords:

BiOCl/UiO-66(Zr)-NH₂ heterojunction; RhB; photodegradation; photocatalytic mechanism

PACS:

O643.36

DOI:

10.3969/j.issn.1001-4616.2021.03.005

Abstract:

BiOCl/UiO-66(Zr)-NH₂(BUN)heterojunction was successfully prepared by solvothermal method. The crystal structure,morphology and light absorption range of the material were characterized by XRD,TEM,SEM and DRS. The experimental results show that the degradation rate of RhB was the highest(98.5%)after 20 min visible light irradiation when the mass ratio of BiOCl to UiO-66(Zr)-NH₂ was 1:0.1. After four cycles of the material usage,it still has a good RhB degradation property. In addition,the electrochemical performance of the composite material was explored. The material’s free radical quenching and electron spin resonance(ESR)experiments were also conducted to further propose the photocatalytic mechanism of the reaction system.

References:

[1] 姜蕾,陈书怡,杨蓉,等. 长江三角洲地区典型废水中抗生素的初步分析[J]. 环境化学,2008,27(3):371-374.
[2]雷慧宁. 规模化猪场废水处理工艺中抗生素和重金属残留及其生态风险[D]. 上海:华东师范大学,2016.
[3]LEI Y Q,WANG G H,SONG S Y,et al. Synthesis,characterization and assembly of BiOCl nanostructure and their photocatalytic properties[J]. Crystal engineering communication,2009,11:1857-1862.
[4]LI H,SHI J G,ZHAO K,et al. Sustainable molecular oxygen activation with oxygen vacancies on the {001} facets of BiOCl nanosheets under solar light[J]. Nanoscale,2014,6:14168-14173.
[5]YOON M,SRIRAMBALAJI R,KIM K,Homochiral metal-organic frameworks for asymmetric heterogeneous catalysis[J]. Chemical reviews,2012,112:1196-1231.
[6]MU X X,JIANG J F,CHAO F F,et al. Ligand modification of UiO-66 with an unusual visible light photocatalytic behavior for RhB degradation[J]. Dalton transacations,2018,47:1895-1902.
[7]SHEN L J,WU W M,LIANG R W,et al. Highly dispersed palladium nanoparticles anchored on UiO-66(NH₂)metal-organic framework as a reusable and dual functional visible-light-driven photocatalyst[J]. Nanoscale,2013,5:9374-9382.
[8]SUN L M,XIANG L,ZHAO X,et al. Enhanced visible-light photocatalytic activity of BiOI/BiOCl heterojunctions:key role of crystal facet combination[J]. ACS catalysis,2015,5:3540-3551.
[9]LUO Y N,MI Y,TAN X C,et al. Ultrathin BiOCl nanosheet modified TiO₂ for the photoelectrochemical sensing of chlorpyrifos[J]. Analytical methods,2019,11:375-380.

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Last Update: 2021-09-15