Au NPs@Co-Ni LDH with a concentration effect for the detection of ancient pigments in wall paintings - Jing Wen; Jiayi Wang; Jiamin Sun; Baichao Zhang; Chao Suo; Jing Cui; Xuchuan Cao; Yaxin Yang; Yuexian Hao; Shaohui Guo; Xiaojian Bai; Xian-Ming Zhang (Journal of Environmental Chemical Engineering, 2025)