Lead-Free Cs2TeX6 (X = Cl, Br, and I) Perovskite Microcrystals with High Stability for Efficient Photocatalytic CO2 Reduction

• DOI: 10.1021/acs.inorgchem.2c02417
• Publication Date: 2022-08-31T16:46:12Z
• Authors: Qiang Huang; Changqing Tian; Junan Lai; Fei Qi; Nan Zhang; Jiaxin Liu; Zhiyu Liang; Daofu Wu; Xiaosheng Tang
• Keywords: Lead (geology); Chemical Stability

In response to calling for a sustainable and carbon-neutral economy, the conversion of CO2 useful chemicals using solar energy is potential tactic relieve global dilemma environmental issues, which has been hot topic so far. Recently, lead halide perovskites as novel photocatalysts have attracted researchers' interests. However, they generally encounter poor stability toxicity, restricting their large-scale practical applications. Here, lead-free Cs2TeX6 (X = Cl, Cl0.5Br0.5, Br, Br0.5I0.5, I) perovskite microcrystals with strong were prepared used realize photocatalytic reduction efficiently. The Cs2TeBr6 delivered stronger ability than many previously reported photocatalysts, CO CH4 yields 308.63 60.42 μmolg-1, respectively, under 3 h illumination. presented strategy in our work provides new ideas designing preparing efficient based on nonleaded high-stability perovskites.