Interface engineering of Platinum-Copper alloy/titanium dioxide for enhanced photocatalytic carbon dioxide reduction

被引:4
作者
Wang, Xin [1 ]
Tan, Wei [1 ]
Peng, Bo [2 ]
Sun, Shangcong [2 ]
Li, Xue [1 ]
Wang, Kaiqiang [3 ]
Ji, Jiawei [3 ]
Liao, Haohong [3 ]
Sun, Jingfang [4 ]
Tong, Qing [4 ]
Wan, Haiqin [1 ]
Dong, Lin [1 ]
机构
[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Jiangsu Key Lab Vehicle Emiss Control, Nanjing 210023, Peoples R China
[2] SINOPEC Res Inst Petr Proc Co Ltd, Beijing 100083, Peoples R China
[3] Nanjing Univ, Sch Chem & Chem Engn, MOE, State Key Lab Mesoscop Chem, Nanjing 210023, Peoples R China
[4] Nanjing Univ, Ctr Modern Anal, Nanjing 210023, Peoples R China
基金
中国国家自然科学基金;
关键词
Interface structure; Hydrogen reduction treatment; Pt delta+-Ov-Ti3+; Cu delta+-Ov-Ti3+; PtCu/Ti-H2; catalyst; Photocatalytic CO2 reduction; CO2; REDUCTION; TIO2; ATOMS;
D O I
10.1016/j.envres.2024.120191
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
To develop an efficient photocatalytic carbon dioxide (CO2) reduction aimed at mitigating CO2 emissions and greenhouse effects, we propose a straightforward strategy involving hydrogen reduction treatment of PtCu/Ti to create the PtCu/Ti-H2 catalyst with a distinctive interface structure. Compared with the fresh PtCu/Ti catalyst and the benchmark anatase TiO2, the CH4 production of the PtCu/Ti-H2 catalyst increased by 2 times and 81.6 times, respectively. Comprehensive characterizations confirmed the formation of Pt delta+-Ov-Ti3+ and Cu delta+-Ov-Ti3+ interface structures on the hydrogen-treated PtCu/Ti-H2 catalyst, enhancing light absorption and the separation of photogenerated charge carriers. Further investigation into the reaction mechanism revealed that the Pt delta+-OvTi3+ and Cu delta+-Ov-Ti3+ species on PtCu/Ti-H2 serve as more favorable sites for CO2 adsorption and activation, promoting an enhanced formaldehyde mechanism. This study not only elucidates the relation between photocatalytic CO2 reduction activity and the PtCu/Ti interface structure but also offers a novel strategy for designing alloy/oxide-based catalysts for CO2 photoreduction, overcoming the limitations of previous studies that focused on metal or vacancy systems.
引用
收藏
页数:11
相关论文
共 42 条
[1]   General Synthesis of Ultrafine Cu-Based Alloy Nanoparticles Anchored on Porous N-Doped Carbon Nanofibers for Enhanced Electrocatalytic Performance [J].
Chen, Jun-Jia ;
Tan, Jing-Bo ;
Li, Cheng-Fei ;
Gu, Lin-Fei ;
Lu, Xue-Feng ;
Li, Gao-Ren .
JOURNAL OF PHYSICAL CHEMISTRY C, 2020, 124 (24) :13036-13044
[2]   Asymmetric Electron Redistribution in Niobic-Oxygen Vacancy Associates to Tune Noncovalent Interaction in CO2 Photoreduction [J].
Di, Jun ;
Chen, Chao ;
Wu, Yao ;
Chen, Hao ;
Xiong, Jun ;
Long, Ran ;
Li, Shuzhou ;
Song, Li ;
Jiang, Wei ;
Liu, Zheng .
ADVANCED MATERIALS, 2024, 36 (25)
[3]   Atomic Pt Sites Anchored in the Interface between Grains on Vacancy-Enriched CeO2 Nanosheets: One-Step Precursor Combustion Synthesis [J].
Dong, Feng ;
Liang, Xiao ;
Zhang, Zedong ;
Yin, Haibo ;
Wang, Dingsheng ;
Li, Junhua ;
Li, Yadong .
ADVANCED MATERIALS, 2024, 36 (25)
[4]   Boosting exciton dissociation and charge transfer in CsPbBr3 QDs via ferrocene derivative ligation for CO2 photoreduction [J].
Du, Chenyu ;
Sheng, Jianping ;
Zhong, Fengyi ;
He, Ye ;
Liu, Huiyu ;
Sun, Yanjuan ;
Dong, Fan .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2024, 121 (09)
[5]   Ordering Bimetallic Cu-Pd Catalysts onto Orderly Mesoporous SrTiO3-Crystal Nanotubular Networks for Efficient Carbon Dioxide Photoreduction [J].
Fang, Fan ;
Zhang, Jie ;
Xiang, Lijing ;
Chen, Chong ;
Feng, Nengjie ;
Lv, Yanqi ;
Chang, Kun ;
Huang, Jun .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2024, 63 (30)
[6]   Product selectivity of photocatalytic CO2 reduction reactions [J].
Fu, Junwei ;
Jiang, Kexin ;
Qiu, Xiaoqing ;
Yu, Jiaguo ;
Liu, Min .
MATERIALS TODAY, 2020, 32 :222-243
[7]   Construction of Dual Active Sites in Perovskite Oxide for Targeted Photocatalytic CO2 Reduction to CH4 [J].
Gao, Yibo ;
Zhang, Miaomiao ;
Jin, Yang ;
Mao, Yanpeng ;
Wang, Wenlong ;
Song, Zhanlong .
ACS CATALYSIS, 2024, 14 (14) :10746-10759
[8]   Non-Metal Sulfur Doping of Indium Hydroxide Nanocube for Selectively Photocatalytic Reduction of CO2 to CH4: A "One Stone Three Birds" Strategy [J].
Guan, Qinhui ;
Ran, Weiguang ;
Zhang, Dapeng ;
Li, Wenjuan ;
Li, Na ;
Huang, Baibiao ;
Yan, Tingjiang .
ADVANCED SCIENCE, 2024, 11 (30)
[9]   Interfacial effects promote the catalytic performance of CuCoO2-CeO2 metal oxides for the selective reduction of NO by CO [J].
He, Yajun ;
Liu, Jun ;
Zhang, Guojie ;
Wang, Ying ;
Zhao, Yuqiong ;
Li, Guoqiang ;
Zhang, Yongfa ;
Lv, Dengke .
CHEMICAL ENGINEERING JOURNAL, 2023, 465
[10]   ELECTRON-PARAMAGNETIC-RES OBSERVATION OF TRAPPED ELECTRONS IN COLLOIDAL TIO2 [J].
HOWE, RF ;
GRATZEL, M .
JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (21) :4495-4499