Solar-Driven Upcycling of Polylactic Acid to Alanine over Pt/CdS–TiO 2 Heterojunction Single-Atom Photocatalyst - Zhanghui Xia; Longfei Lin; Xiao Chen; Jianxin Zhai; Cheng Xue; Shuaiqiang Jia; Jiapeng Jiao; Mengke Dong; Wanying Han; Xinrui Zheng; Ting Deng; Xinyu Zou; et al. (Journal of the American Chemical Society, 2025)