Open AccessConstruction of ZnO Hollow Spheres Coupled with g-C3N4 as Enhanced Photocatalysts under Simulated Solar Light
Author(s) -
Xiaoxian Zhang,
Ying Si,
Ping Li,
Shuwang Duo
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/678/1/012128
Subject(s) - photocatalysis , materials science , photodegradation , graphitic carbon nitride , degradation (telecommunications) , methyl orange , chemical engineering , visible spectrum , nuclear chemistry , nanotechnology , analytical chemistry (journal) , optoelectronics , chemistry , catalysis , organic chemistry , telecommunications , computer science , engineering
Rapid photon-induced e − -h + pairs recombination rate is a fatal factor restricting the photocatalytic performance of graphitic carbon nitride (g-C 3 N 4 ). In this work, ZnO hollow spheres (ZnO HS) coupled with g-C 3 N 4 photocatalysts were prepared by a simple mechanical agitation of the mixture of g-C 3 N 4 and ZnO HS in ethanol solution. The as-prepared samples were systematically measured via were characterized by XRD, SEM, DRS, FT-IR and PL. As analysis from the PL test results, the g-C 3 N 4 /ZnO HS has much lower photo-generated e − -h + pairs recombination rate than that of pure g-C 3 N 4 . Under the illumination of simulated solar light, the effect of ZnO HS concentration on the photocatalytic properties of as-prepared gC 3 N 4 /ZnO HS photocatalysts with different ZnO amount was discussed by the degradation of methyl orange (MO) in detail. The optimum photodegradation performance of g-C 3 N 4 /ZnO HS with 5% ZnO HS is almost 47.43% higher than that of pristine g-C 3 N 4 . Our research results present a simple and convenient synthetic protocol for processing g-C 3 N 4 -based photocatalysts for the degradation of environmental pollutants.