摘要
Abstract
Using urea as nitrogen source,N-doped titanium dioxide(N-TiO2)is synthesized by sol-gel method,and its structure is characterized by X-ray diffraction and X-ray photoelectron spectroscopy,and then the optimal process conditions for N-TiO2 photocatalytic degradation of methyl orange dye wastewater are explored in the experiment.The results show that under the optimal process conditions,the pH of the reaction system is 8,the amount of catalyst added is 7 g/L,the initial concentration of methyl orange is 10 mg/L,the number of catalyst cycles is less than 4,and the degradation rate of methyl orange can reach 98%,and the N-TiO2 has excellent photocatalytic activity and stability.关键词
N掺杂/光催化/二氧化钛/溶胶-凝胶法/甲基橙/染料废水Key words
N-doping/photocatalysis/titanium dioxide/sol-gel method/methyl orange/dye wastewater分类
资源环境
