Plasmon Assisted Highly Efficient Visible Light Catalytic CO_(2) Reduction Over the Noble Metal Decorated Sr-Incorporated g-C_(3)N_(4)  

作　　者：Muhammad Humayun Habib Ullah Lang Shu Xiang Ao Asif Ali Tahir Chungdong Wang Wei Luo 

机构地区：[1]School of Optical and Electronic Information,Wuhan National Laboratory for Optoelectronics,Engineering Research Center for Functional Ceramics of the Ministry of Education,Huazhong University of Science and Technology,Wuhan 430074,People’s Republic of China [2]Environment and Sustainability Institute,University of Exeter,Cornwall,Penryn TR109FE,UK

出　　处：《Nano-Micro Letters》2021年第12期416-433,共18页纳微快报（英文版）

基　　金：financially supported by the Ministry of Science and Technology of China (Grant No. 2018YFA0702100);the National Natural Science Foundation of China (Grant No. 11874169,51972129);the National Key R&D Program of China (Grant No. 2017YFE0120500);the Key Research and Development Program of Hubei (Grant No. 2020BAB079);the South Xinjiang Innovation and Development Program of Key Industries of Xinjiang Production and Construction Corps (Grants No. 2020DB002);Engineering and Physical Sciences Research Council (EP/T025875/1);the Hubei “ChuTian Young Scholar” program。

摘　　要：The photocatalytic performance of g-C_(3)N_(4) for CO_(2) conversion is still inadequate by several shortfalls including the instability,insu cient solar light absorption and rapid charge carrier's recombination rate. To solve these problems,herein,noble metals(Pt and Au)decorated Sr-incorporated g-C_(3)N_(4) photocatalysts are fabricated via the simple calcination and photo-deposition methods. The Sr-incorporation remarkably reduced the g-C_(3)N_(4) band gap from 2.7 to 2.54 eV,as evidenced by the UV–visible absorption spectra and the density functional theory results. The CO_(2) conversion performance of the catalysts was evaluated under visible light irradiation. The Pt/0.15 Sr-CN sample produced 48.55 and 74.54 μmol h-1 g-1 of CH_(4) and CO,respectively.These amounts are far greater than that produced by the Au/0.15 Sr-CN,0.15 Sr-CN,and CN samples. A high quantum e ciency of 2.92% is predicted for the Pt/0.15 Sr-CN sample. Further,the stability of the photocatalyst is confirmed via the photocatalytic recyclable test. The improved CO_(2) conversion performance of the catalyst is accredited to the promoted light absorption and remarkably enhanced charge separation via the Sr-incorporated mid gap states and the localized surface plasmon resonance e ect induced by noble metal nanoparticles.This work will provide a new approach for promoting the catalytic e ciency of g-C_(3)N_(4) for e cient solar fuel production.

关 键 词：g-C_(3)N_(4) Sr-incorporation Noble metal deposition Density functional theory Energy applications 

分 类 号：X701[环境科学与工程—环境工程] O643.36[理学—物理化学] O644.1[理学—化学]