Carbon dots anchored NiAl-LDH@In_(2)O_(3) hierarchical nanotubes for promoting selective CO_(2) photoreduction into CH_(4)

作     者：Xiuzheng Deng Changhai Liu Xiaotong Yan Jingshan Fan Qian Liang Zhongyu Li Xiuzheng Deng;Changhai Liu;Xiaotong Yan;Jingshan Fan;Qian Liang;Zhongyu Li

作者机构：Advanced Catalysis and Green Manufacturing Collaborative Innovation CenterCNPC-CZU Innovation AllianceSchool of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China School of Materials Science&EngineeringChangzhou UniversityChangzhou 213164China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2024年第35卷第6期

页      面：404-408页

核心收录：

学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070304[理学-物理化学(含∶化学物理)] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.21876015,21703019) Qinglan Project Foundation of Jiangsu Province 

主　　题：Carbon dots In_(2)O_(3) Layered double hydroxides Photocatalytic CO_(2) reduction S-scheme 

摘      要：The efficient conversion of CO_(2) into hydrocarbon fuels(CH_(4))with high selectivity is considered as a great challenge in photocatalysis owing to the multiple-electron transfer pathway and competitive H_(2) ***,we developed carbon dots(CDs)-modulated S-scheme heterojunction of CDs/NiAl-LDH@In_(2)O_(3)(C-DH@IN)through a facile in-situ hydrothermal *** to the multi-shell nanotube structure,the C-DH@IN shows an enhanced CH_(4) evolution rate of 10.67μmol h^(-1)g^(-1)and higher selectivity of CH_(4)(85.70%)compared with In_(2)O_(3) and Ni Al-LDH@In_(2)O_(3) binary catalyst in the pure water without sacrificial *** spin resonance(ESR)and in situ Fourier transform infrared spectra verify that the constructed S-scheme heterojunction can possess the strong redox capability and the HCOOand CH_(3)O-as critical intermediates play an important role in selective CO_(2) reduction to generate CH_(4).Furthermore,CDs with superior photoabsorption can boost the electron transfer and absorb H^(+),thus improving the integration of H^(+)and CO_(2) ***,this work emphasizes a facile strategy to achieve efficient CO_(2)-to-CH_(4) conversion based on construction of CDs-based heterojunction catalysts.