甲苯
光催化
催化作用
醛
化学
光热治疗
光化学
降级(电信)
化学工程
羧酸盐
光热效应
纳米技术
材料科学
有机化学
工程类
电信
计算机科学
作者
Hanmiao Wang,Qian Zhao,Daiqiang Li,Zhilin Zhang,Yuan Liu,Xiaoxiao Guo,Xiaotong Li,Zhi Li,Lian Wang,Jinzhu Ma,Hong He
标识
DOI:10.1021/acs.est.3c10459
摘要
Photothermal catalysis is extremely promising for the removal of various indoor pollutants owing to its photothermal synergistic effect, while the low light utilization efficiency and unclear catalytic synergistic mechanism hinder its practical applications. Here, nitrogen atoms are introduced, and Pt nanoparticles are loaded on TiO2 to construct Pt/N-TiO2-H2, which exhibits 3.5-fold higher toluene conversion rate than the pure TiO2. Compared to both photocatalytic and thermocatalytic processes, Pt/N-TiO2-H2 exhibited remarkable performance and stability in the photothermocatalytic oxidation of toluene, achieving 98.4% conversion and 98.3% CO2 yield under a light intensity of 260 mW cm–2. Furthermore, Pt/N-TiO2-H2 demonstrated potential practical applicability in the photothermocatalytic elimination of various indoor volatile organic compounds. The synergistic effect occurs as thermocatalysis accelerates the accumulation of carboxylate species and the degradation of aldehyde species, while photocatalysis promotes the generation of aldehyde species and the consumption of carboxylate species. This ultimately enhances the photothermocatalytic process. The photothermal synergistic effect involves the specific conversion of intermediates through the interplay of light and heat, providing novel insights for the design of photothermocatalytic materials and the understanding of photothermal mechanisms.
科研通智能强力驱动
Strongly Powered by AbleSci AI