Open AccessVisible light responsive BiPO4/g-C3N4 for enhanced photocatalysis of 2-4 dichlorophenol under solar irradiation
Author(s) -
Jit Jang Ng,
Kok Hoong Leong,
Lan Ching Sim,
Yik Heng Chin,
Pichiah Saravanan
Publication year - 2020
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/917/1/012007
Subject(s) - photocatalysis , photodegradation , materials science , absorbance , irradiation , graphitic carbon nitride , visible spectrum , dopant , scanning electron microscope , bismuth , nuclear chemistry , photochemistry , analytical chemistry (journal) , chemistry , doping , optoelectronics , catalysis , organic chemistry , chromatography , physics , nuclear physics , composite material , metallurgy
In this study, bismuth phosphate (BiPO 4 ) incorporated with graphitic carbon nitride (g-C 3 N 4 ) was successfully constructed by a facile thermal deposition. The morphology, optical property and crystal structure were systematically studied by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and UV-Vis diffuse reflectance spectra (UV-DRS). The morphology confirmed that the BiPO 4 is successfully deposited on the surface of g-C 3 N 4 . With the deposition of g-C 3 N 4 had enhanced the light absorbance, especially in the visible light region with 2.5% dopant dosage giving the highest absorbance. This significantly improved the photocatalysis of 2,4 dichlorophenol (2-4DCP) under solar irradiation attributed by 2.5% BiPO 4 /g-C 3 N 4 with achieved a complete removal in 90 min. This study could inspire new ideas and alternative solution for photodegradation of other organic pollutants under solar irradiation.