Hydrothermal synthesis of PrVO 4 nanocubes with enhanced photocatalytic performance through a synergistic effect

Micro & nano letters

article

Li Li¹  Zhimei Sun¹  Mai Xu¹  Jiewei Rong¹  Longde Wang¹  Yi Chen¹  Lujiang Wang¹  Fengwu Wang¹ 

[1] School of Chemistry and Materials Engineering, Huainan Normal University

关键词: crystal growth from solution;    oxidation;    ultraviolet spectra;    visible spectra;    nanofabrication;    praseodymium compounds;    nanostructured materials;    photocatalysis;    photocatalysts;    spectrochemical analysis;    dyes;    hydrothermal synthesis;    synergistic effect;    green hydrothermal method;    methylene blue aqueous solution;    visible light irradiation;    photocatalytic efficiency;    enhanced photocatalytic activity;    photocatalytic oxidation;    heterogeneous photo-Fenton-like reaction;    tetragonal praseodymium oxide nanocubes;    H+ radical;    OH radical;    H2O2;    PrVO4;   

DOI  :  10.1049/mnl.2019.0455

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Novel tetragonal PrVO 4 nanocubes have been fabricated by a simple and green hydrothermal method. The excellent catalytic activity of the samples was investigated for the degradation of methylene blue aqueous solution under visible light irradiation. As compared with pure PrVO 4 and H 2 O 2 , the photocatalytic efficiency of the PrVO 4 /H 2 O 2 system was enhanced about 1.5 and 9 folds, respectively. In the whole photocatalytic process, h + and ·OH radicals played the dominant roles on the basis of the trapping test. The significantly enhanced photocatalytic activity was attributed to the synergistic effect between photocatalytic oxidation of PrVO 4 and heterogeneous photo-Fenton-like reaction of V(V)/H 2 O 2 . Finally, a possible photocatalytic mechanism was proposed.

【 授权许可】

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