Lead-free perovskite Cs3Bi2Br9 quantum dots (QDs)/ultra-thin W18O49 nanobelts S-scheme heterojunction toward optimized photocatalytic CO2 reduction coupled with toluene oxidation - Mai Zhang; Xiangya Zhang; Zhen Zhang; Linlin Zhang; Jianjun Liao; Xiaodong Zhang; Chengjun Ge; Wei Zhou (Chemical Engineering Journal, 2025)