LAUSR

Abstract Due to the effect of human beings, the ecosystem of earth in which people can only live is encountering increasingly severe pollution. Environment pollution, especially the air pollution, has become a problem that cannot be ignored today. Therefore, this work is dedicated to make full use of light energy and combined with photocatalysis technology, to convert harmful pollutants to humans into clean substances, so as to achieve the purpose of purifying the air. This work prepared the cerium-bismuth solid solution material, which had a good effect on the purification of exhaust gas. The optimum ratio of cerium-bismuth in the solid solution material was obtained through the exhaust gas purification experiment. Moreover, the microscopic characterization tests of XRD, UV–Vis, FT-IR, SEM, EDS were conducted. The results obtained are that the molar ratio of cerium and bismuth is 0.5. In addition, under ultraviolet light conditions, the purification efficiency of cerium-bismuth solid solution material for HC, CO, CO2 and NOX were 3.6%, 22.22%, 13.56%, 26%. Under natural light conditions, the purification efficiencies for HC, CO, CO2 and NOX were 17.57%, 23.1%, 17.3% and 39.1%, respectively. The optical domain can be extended from ultraviolet light to visible light.