Efficient solar-light conversion for optimizing the catalytic ozonation of gaseous toluene with PdOx-LaFeO3

被引：26
作者：
Gao, Junxian [1 ]
Tang, Lingling [1 ]
Shen, Zhizhang [1 ]
Dong, Yuming [4 ]
Wang, Zhenyu [1 ]
Lyu, Jinze [1 ,3 ]
Li, Ji [1 ,3 ]
Yu, Hanqing [2 ]
机构：
[1] Jiangnan Univ, Sch Environm & Civil Engn, Wuxi 214122, Jiangsu, Peoples R China
[2] Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China
[3] Jiangnan Univ, Jiangsu Key Lab Anaerob Biotechnol, Wuxi 214122, Jiangsu, Peoples R China
[4] Jiangnan Univ, Sch Chem & Mat Engn, Wuxi 214122, Jiangsu, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2021年 / 288卷
基金：
中国国家自然科学基金;
关键词：
Photothermal conversion; Photoelectric effect; Volatile organic compounds; Solarenergy; PHOTOCATALYTIC DEGRADATION; GAS-PHASE; AIR-POLLUTANTS; ANATASE TIO2; UV254+185 NM; OZONE; PEROVSKITE; TEMPERATURE; OXIDATION; DECOMPOSITION;
D O I：
10.1016/j.apcatb.2021.120004
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Solar-energy conversion is a promising strategy to enhance efficiency and save energy for pollutant elimination. In this study, we combined LaFeO3 and PdOx to simultaneously convert the energy from ultraviolet (UV), visible, and infrared (IR) light and thus enhance the catalytic ozonation of toluene. The contribution of photothermal and photoelectric effect for the prepared samples was evaluated by temperature and light-controlled experiments. Results revealed that the removal and mineralization efficiencies of toluene for 10%PdOx-LaFeO3 reached 52.9% and 40.2%, respectively, under full-spectrum illumination. The synergistic factor of full-spectrum light and ozone for 10%PdOx-LaFeO3 was 3.19 times higher than that for LaFeO3. The incident-light and absorbed-light photothermal-conversion efficiencies of full-spectrum for 10%PdOx-LaFeO3 were 2.0 and 1.7 times higher than that for LaFeO3, respectively. PdOx loading also significantly promoted the separation efficiency of photogenerated charge carriers and expanded the valid spectrum of photoelectric effect from the ultraviolet to visible regions.
引用
收藏
页数：10
相关论文
共 54 条
[1]   Light-induced charge separation in anatase TiO2 particles [J].
Berger, T ;
Sterrer, M ;
Diwald, O ;
Knözinger, E ;
Panayotov, D ;
Thompson, TL ;
Yates, JT .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (13) :6061-6068
[2]  
Ribeiro BMB, 2020, PROCESS SAF ENVIRON, V135, P265
[3]   A solar light-induced photo-thermal catalytic decontamination of gaseous benzene by using Ag/Ag3PO4/CeO2 heterojunction [J].
Borjigin, Burenbayaer ;
Ding, Lan ;
Li, Huiqin ;
Wang, Xiaojing .
CHEMICAL ENGINEERING JOURNAL, 2020, 402
[4]   Removal of toluene over bi-metallic Pt-Pd-SBA-15 catalysts: Kinetic and mechanistic study [J].
Chang, Mulan ;
Liu, Xin ;
Ning, Ping ;
Zhang, Qiulin ;
Xia, Futing ;
Wang, Huimin ;
Wei, Guangcheng ;
Wen, Junjie ;
Liu, Mo ;
Hu, Jia ;
Tang, Tong .
MICROPOROUS AND MESOPOROUS MATERIALS, 2020, 302
[5]   Preferential Cation Vacancies in Perovskite Hydroxide for the Oxygen Evolution Reaction [J].
Chen, Dawei ;
Qiao, Man ;
Lu, Ying-Rui ;
Hao, Li ;
Liu, Dongdong ;
Dong, Chung-Li ;
Li, Yafei ;
Wang, Shuangyin .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2018, 57 (28) :8691-8696
[6]   Heterojunction of facet coupled g-C3N4/surface-fluorinated TiO2 nanosheets for organic pollutants degradation under visible LED light irradiation [J].
Dai, Kai ;
Lu, Luhua ;
Liang, Changhao ;
Liu, Qi ;
Zhu, Guangping .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 156 :331-340
[7]   Large scale preparing carbon nanotube/zinc oxide hybrid and its application for highly reusable photocatalyst [J].
Dai, Kai ;
Dawson, Graham ;
Yang, Song ;
Chen, Zheng ;
Lu, Luhua .
CHEMICAL ENGINEERING JOURNAL, 2012, 191 :571-578
[8]   Characterization of Pt-TiO2 film used in three formaldehyde photocatalytic degradation systems: UV254 nm, O3+UV254 nm and UV254+185 nm via X-ray photoelectron spectroscopy [J].
Fu, Pingfeng ;
Zhang, Pengyi .
CHINESE JOURNAL OF CATALYSIS, 2014, 35 (02) :210-218
[9]   Localization and Stabilization of Photogenerated Electrons at TiO2 Nanoparticle Surface by Oxygen at Ambient Temperature [J].
Gao, Junxian ;
Lyu, Jinze ;
Li, Ji ;
Shao, Junwei ;
Wang, Yanhong ;
Ding, Weiqi ;
Cheng, Rui ;
Wang, Siyu ;
He, Zebin .
LANGMUIR, 2018, 34 (24) :7034-7041
[10]   Highly active and humidity resistive perovskite LaFeO3 based catalysts for efficient ozone decomposition [J].
Gong, Shuyan ;
Xie, Zheng ;
Li, Weiman ;
Wu, Xiaofeng ;
Han, Ning ;
Chen, Yunfa .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2019, 241 :578-587
123456