Machine learning–assisted controlled synthesis of cucurbit[7]uril-modified magnetic biochar and Pb(II) removal performance with DFT insights - Yujie Hu; Zhenguang Fu; Zhengfeng Xie; Hongpeng Zhu; Guanqiao Duan; Ruoxi Li; Xiaofeng Luo; Yiping Wen; Songsong Xue (Desalination, 2026)