The distribution of Pb(II)/Cd(II) adsorption mechanisms on biochars from aqueous solution: Considering the increased oxygen functional groups by HCl treatment

• Published in: Bioresource technology Vol. 291; p. 121859
• Main Authors: Wu, Jiawen, Wang, Tao, Zhang, Yongsheng, Pan, Wei-Ping
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.11.2019
• Subjects: Adsorption; Adsorption mechanism; aqueous solutions; Biochar; Cadmium; Cadmium - chemistry; Charcoal - chemistry; Hot Temperature; hulls; Hydrochloric Acid - chemistry; ion exchange; Lead; Lead - chemistry; Oxidation-Reduction; oxygen; Oxygen - chemistry; Oxygen functional groups; Pyrolysis; technology; temperature; Lead; Cadmium; Oxygen functional groups; Biochar; Adsorption mechanism

[Display omitted] •The content of OFGs increased on the biochars after HCl treatment.•OFGs(COOH and OH) could complex with Pb(II)/Cd(II) as adsorption sites.•Qf was determined more accurately by the consumption amount of OFGs.•Pb/Cd-O accounts for more than 80% on the adsorption of Pb(II)/Cd(II). Th...