Open AccessRecent Advances in Doped Bi2O3 and its Photocatalytic Activity: A Review
Author(s) -
Bella Aprimanti Utami,
Heri Sutanto,
Eko Hidayanto
Publication year - 2022
Publication title -
international journal of research and review
Language(s) - English
Resource type - Journals
eISSN - 2454-2237
pISSN - 2349-9788
DOI - 10.52403/ijrr.20220128
Subject(s) - photocatalysis , doping , bismuth , materials science , irradiation , band gap , visible spectrum , oxide , photochemistry , nanotechnology , optoelectronics , catalysis , chemistry , organic chemistry , physics , nuclear physics , metallurgy
Bismuth Oxide (Bi2O3) has a very promising photocatalytic ability to degrade waste pollutants under visible light irradiation because it has a small energy gap of around 2.85-2.58 eV. Although it has excellent potential as a photocatalyst, Bi2O3 has the disadvantage of a high electron-hole pair recombination rate, which will reduce its photocatalytic activity. To overcome these problems, surface modifications, defect recognition, or doping of Bi2O3 are carried out to obtain a more effective and efficient photocatalyst to degrade waste pollutants under visible light irradiation. Several studies by researchers have been described for the modification of Bi2O3 by doping. Various types of doping are given, such as doping in elements or doping in the form of compounds to form composites. Based on several studies that have been described, appropriate doping has been shown to increase the photocatalytic activity of Bi2O3.Keywords: Bi2O3, Photocatalyst, Doping