Synthesis and visible light photocatalytic performance of Ag3PO4/ZnO@carbon sphere ternary heterostructure
ZHAO Xiao-hua1,2, WEI Chong1, SU Shuai1, CUI Jia-bao1, ZHOU Jian-guo2, LI Cai-zhu1, LOU Xiang-dong1
1. School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, China;
2. Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control(Ministry of Education), School of Environment, Henan Normal University, Xinxiang 453007, Henan, China
Abstract：Using flower-like ZnO@carbon sphere (ZnO@C) as precursor, Ag3PO4/ZnO@carbon sphere (Ag3PO4/ZnO@C) ternary composites were synthesized via an in-situ precipitation method, Ag3PO4 nanoparticles were deposited on the surface of the ZnO@C. The samples were characterized by XRD, SEM, Raman, UV-Vis DRS and transient photocurrent responses. The visible light photocatalytic performance of samples was also investigated. The results show that the photocatalytic performance of Ag3PO4 can be improved by combining with ZnO@C. Among the samples, AP-Z-5(5%(mass fraction) ZnO@C and Ag3PO4) shows the best photocatalytic performance. It can nearly completely degrade methylene blue (MB) after 20min illumination in the presence of 5mg/L Fe(NO3)3, and remain 86% degradation rate after 4 cycles. Additionally, AP-Z-5 can degrade MB very well even in the mixed contaminant solution including Cr(VI) and MB.
[1] YI Z G,YE J H,KIKUGAWA N,et al. An orthophosphate semiconductor with photooxidation properties under visible-light irradiation[J]. Nature Materials,2010,9(7):559-564.
[2] WANG L P,WANG L M,CHU D Q,et al. Tartaric acid-assisted synthesis of Ag3PO4 hollow microspheres with enhanced photocatalytic properties[J]. Catalysis Communications,2017,88:53-55.
[3] CHEN X J,DAI Y Z,WANG X Y,et al. Synthesis and charac-terization of Ag3PO4 immobilized with graphene oxide (GO) for enhanced photocatalytic activity and stability over 2,4-dichlorophenol under visible light irradiation[J]. Journal of Hazardous Materials,2015,292:9-18.
[4] YU H J,YU Y,LIU J H,et al. Space-confined growth of Ag3PO4 nanoparticles within WS2 sheets:Ag3PO4/WS2 composites as visible-light-driven photocatalysts for decomposing dyes[J]. Jour-nal of Materials Chemistry A, 2015,38(3):19439-19444.
[5] TANG C N,LIU E Z,WAN J,et al. Co3O4 nanoparticles decor-ated Ag3PO4 tetrapods as an efficient visible-light-driven hetero-junction photocatalyst[J]. Applied Catalysis B:Environmental,2016,181:707-715.
[6] LIU L,DING L,LIU Y G,et al. A stable Ag3PO4@PANI core@shell hybrid:Enrichment photocatalytic degradation with π-π conjugation[J]. Applied Catalysis B:Environmental,2017,201:92-104.
[7] 赵燕茹,马建中,刘俊莉. 可见光响应性ZnO基纳米复合光催化材料的研究进展[J]. 材料工程,2017,45(6):129-137. ZHAO Y R,MA J Z,LIU J L. Research progress on visible-light responding ZnO-based nanocomposite photocatalyst[J]. Journal of Materials Engineering,2017,45(6):129-137.
[8] HUI A P,MA J Z,LIU J L. Morphological evolution of Fe doped sea urchin-shaped ZnO nanoparticles with enhanced photocatalytic activity[J]. Journal of Alloys Compounds,2017,696:639-647.
[9] 芦佳,王辉虎,董一帆,等. RGO/ZnO纳米棒复合材料的合成及光催化性能[J]. 材料工程,2016,44(12):48-53. LU J,WANG H H,DONG Y F,et al. Synthesis and photo-catalytic performance of RGO/ZnO nanord composites[J]. Jour-nal of Materials Engineering,2016,44(12):48-53.
[10] LIU W,WANG M L,XU C X,et al. Ag3PO4/ZnO:an efficient visible-light-sensitized composite with its application in photo-catalytic degradation of RhodamineB[J]. Materials Research Bulletin,2013,48(1):106-113.
[11] 赵晓华,苏帅,武广利,等. 片花状ZnO@碳球核壳结构的制备及太阳光催化性能[J]. 无机化学学报,2017,33(2):277-284. ZHAO X H,SU S,WU G L,et al. Preparation and sunlight photocatalytic performance of flower-like ZnO@carbon sphere core-shell structure[J]. Chinese Journal of Inorganic Chemistry,2017,33(2):277-284.
[12] ZHAO X H,SU S,WU G L,et al. Facile synthesis of the flower-like ternary heterostructure of Ag/ZnO encapsulating carbon sp-heres with enhanced photocatalytic performance[J]. Applied Surface Science,2017,406:254-264.
[13] CHAI B,LI J,XU Q. Reduced grapheme oxide grafted Ag3PO4 composites with efficient photocatalytic activity under visible-light irradiation[J]. Industrial & Engineering Chemistry Res-earch,2014,53:8744-8752.
[14] KUMAR P,SOM S,PANDEY M K,et al. Investigations on optical properties of ZnO decorated grapheneoxide (ZnO@GO) and reduced graphene oxide (ZnO@r-GO)[J]. Journal of Alloys and Compounds,2018,744:64-74.
[15] CHEN Q C,WU Q S. Preparation of carbon microspheres deco-rated with silver nanoparticles and their ability to remove dyes from aqueous solution[J]. Journal of Hazardous Materials,2015,283:193-201.
[16] ZHOU H,SHEN Y Q,HUANG J,et al. Preparation of meso-porous carbon nitride structure by the dealloying of Ni/a-CN nanocomposites films[J]. Applied Surface Science,2018,440:448-457.
[17] LI X,YU J G,JARONIEC M. Hierarchical photocatalysts[J]. Chemical Society Reviews,2016,45(9):2603-2636.
[18] AKHUNDI A,HABIBI-YANGJEH A. Novel g-C3N4/Ag2SO4 nanocomposites:fast microwave-assisted preparation and enhan-ced photocatalytic performance towards degradation of organic pollutants under visible light[J]. Journal of Colloid and Interface Science,2016,482:165-174.
[19] BI Y P,OUYANG S X,CAO J Y,et al. Facile synthesis of rhombic dodecahedral AgX/Ag3PO4 (X=Cl, Br, I) heterocr-ystals with enhanced photocatalytic properties and stabilities[J]. Physical Chemistry Chemical Physics,2011,21(13):10071-10075.
[20] YUAN Q,CHEN L,XIONG M,et al. Cu2O/BiVO4 heterost-ructures:synthesis and application in simultaneous photoca-talytic oxidation of organic dyes and reduction of Cr(VI) under visible light[J]. Chemical Engineering Journal,2014,255:394-402.
[21] CHEN X J,DAI Y Z,GUO J,et al. Novel magnetically separable reduced graphene oxide (RGO)/ZnFe2O4/Ag3PO4 nanocomp-osites for enhanced photocatalytic performance toward 2,4-dichlorophenol under visible light[J]. Industrial & Engineering Chemistry Research,2016,55(3):568-578.
[22] ZHOU L,ZHANG W,CHEN L,et al. Z-scheme mechanism of photogenerated carriers for hybrid photocatalyst Ag3PO4/g-C3N4 in degradation of sulfamethoxazole[J]. Journal of Colloid and Interface Science,2017,487:410-417.
[23] ZHAO W R,WANG Y,YANG Y,et al. Carbon spheres suppo-rted visible-light-driven CuO-BiVO4 heterojunction:Prepara-tion, characterization,and photocatalytic properties[J]. Applied Catalysis B:Environmental,2012,116(115):90-99
[24] FAGERIA P,GANGOPADHYAY S,PANDE S,et al. Synthesis of ZnO/Au and ZnO/Ag nanoparticles and their photocatalytic application using UV and visible light[J]. RSC Advances,2014,48(4):24962-24972.
2019, Vol. 47 
