Visible-light-driven CuVO/biochar composite activates periodate for efficient diclofenac degradation: Unveiling the electron-shuttling mechanism of p-benzoquinone - Yuxin liu; Wen Tan; Sinuo Gong; Yang Guo; Jingyi Zhu; Honghui Pan; Qin Shi; Shiyong Huang; Ziyin Li; Chuanqi Zhao (Journal of Environmental Chemical Engineering, 2026)