Insights into the heavy metal adsorption and immobilization mechanisms of CaFe-layered double hydroxide corn straw biochar: Synthesis and application in a combined heavy metal-contaminated environment - Xin Liang; Yanlan Su; Xinnuo Wang; Chuntao Liang; Chijian Tang; Jiayu Wei; Kehui Liu; Jiangming Ma; Fangming Yu; Yi Li (Chemosphere, 2023)