Rice husk hydrochars from metal chloride-assisted hydrothermal carbonization as biosorbents of organics from aqueous solution oleh Yin Li, Fana Mulugeta Hagos, Rongrong Chen, Hanxin Qian, Chengxing Mo, Jing Di, Xikun Gai, Ruiqin Yang, Genxing Pan, Shengdao Shan