Open AccessHydrothermal synthesis of PrVO 4 nanocubes with enhanced photocatalytic performance through a synergistic effect
Author(s) -
Li Li,
Sun Zhimei,
Xu Mai,
Rong Jiewei,
Wang Longde,
Chen Yi,
Wang Lujiang,
Wang Fengwu
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2019.0455
Subject(s) - photocatalysis , hydrothermal circulation , methylene blue , materials science , aqueous solution , radical , chemical engineering , catalysis , degradation (telecommunications) , photochemistry , tetragonal crystal system , visible spectrum , nuclear chemistry , nanotechnology , chemistry , organic chemistry , crystal structure , optoelectronics , engineering , telecommunications , computer science
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.