G-C3N4/TiO2 catalyst for visible-light-driven efficient catalytic oxidation of toluene as well as preparation method and application of g-C3N4/TiO2 catalyst

• Main Authors: WAN HAIQIN, SHI BINGQING, DONG LIN, TANG KUNLIN, ZOU WEIXIN, WEI XIAOQIAN
• Format: Patent
• Language: Chinese; English
• Published: 09.03.2021
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a g-C3N4/TiO2 catalyst for visible-light-driven efficient catalytic oxidation of toluene as well as a preparation method and application of the g-C3N4/TiO2 catalyst, and relates to the technical field of photocatalysts. According to the g-C3N4-doped TiO2 catalyst provided by the invention, the mass ratios of C and N elements in the catalyst are 0.05% and 0.19%, so that theabsorption of the catalyst to visible light is improved; the separation efficiency of photogenerated electrons and holes is improved; the catalyst is used for removing methylbenzene through catalyticoxidation at normal temperature and normal pressure under the driving of visible light, the highest activity of stably and continuously removing 30 ppm of gas-phase methylbenzene for 3 hours is about95%, the catalyst shows excellent activity, stability and CO2 selectivity, and the catalyst is cheap in raw material, simple in preparation method and easy for large-scale production. 本发明公开了一种可见光驱动高效催化氧化甲苯的g-C3N4/TiO2催化剂及其制备方法和