Synergistic engineering of heterovalent states and sulfur-vacancy defects in Co/O co-doped ZnS for enhanced photocatalytic hydrogen evolution

Longyan Chen, Binghong Wu, Xinru Wu, Dong–Hau Kuo, Tsz Lok Wan, Baoqian Yang, Pengkun Zhang, Zhengjie Su, Jinguo Lin, Dongfang Lu, Xiaoyun Chen, Xiaoyun Chen