Recently, the research article “Highly exposed active sites of Au nanoclusters for photocatalytic CO2 reduction” (Chem. Eng. J. 2021, 133100，DOI: 10.1016/j.cej.2021.133100), completed by the group of Prof. Hui Xu from Jiangsu University, was published in Chemical Engineering Journal (IF = 16.774). Jiangsu University is the first completed institution. Jianfeng Tian is the first author. Prof. Hui Xu is the corresponding author.