Strengthening built-in electric field and enriching active sites on cobalt-doped ZnSn(OH)6/ZnWO4 heterojunction to promote photocatalytic reduction of CO2

Yikai Wang, Chenchen Xing, Yujia Liu, Ting Liang, Yi Liu, Xinqiu Tan, Yan Huang, Zebin Yu, Zuofang Yao, Yanping Hou