Photogenerated carrier behavior at a gas-solid interface for CO2 adsorption on Cs2AgBiBr6 nanocrystals

Rui Zhang; Linjia Li; Bo Tang; Dejun Wang; Yanhong Lin; Tengfeng Xie

doi:10.1039/d2dt03248a

Photogenerated carrier behavior at a gas-solid interface for CO₂ adsorption on Cs₂AgBiBr₆ nanocrystals

Dalton Trans. 2022 Dec 6;51(47):17938-17941. doi: 10.1039/d2dt03248a.

Authors

Rui Zhang¹, Linjia Li¹, Bo Tang², Dejun Wang¹, Yanhong Lin¹, Tengfeng Xie¹

Affiliations

¹ College of Chemistry, Jilin University, Changchun, 130012, P. R. China. xietf@jlu.edu.cn.
² State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.

PMID: 36413053
DOI: 10.1039/d2dt03248a

Abstract

Photogenerated carrier behavior at a CO₂/Cs₂AgBiBr₆ quantum dot (QD) interface is investigated. In situ photovoltage spectra reveal electron transfer from the Cs₂AgBiBr₆ QDs to CO₂. Moreover, this carrier transfer prefers Bi³⁺ sites (over Ca⁺ and Ag⁺ sites) due to them exhibiting the lowest adsorption energy (E_ads = -0.125 eV) and CO₂-Bi³⁺ interactions being more stable.