生物炭
吸附
亚甲蓝
化学
刚果红
吸附
核化学
钾
碳酸钾
单层
有机化学
催化作用
生物化学
光催化
热解
作者
Zepeng Liu,Jie Zhang,Liping Zhang,Ying Guan,Hao Ji,Yu Zhang,Hui Gao
标识
DOI:10.1016/j.biortech.2023.128912
摘要
Biochar (BC) prepared from Medulla Tetrapanacis was recognized as having potential in environmental remediation because of its porous texture, abundant chemical surface groups and mineral composition. In this study, a novel modified biochar (KBC) derived from Medulla Tetrapanacis achieved efficient adsorption of Congo red (CR) and methylene blue (MB). Characterization results suggested that the modification had little effect on the group distribution of KBC, but a dramatic expansion of specific surface area was observed on KBC (1180.45 m2/g) compared to BC (198.51 m2/g). KBC exhibited a maximum sorption of 584.17 mg/g for CR and 318.01 mg/g for MB. Kinetic and isotherm studies revealed sorption of CR and MB by KBC was chemosorption, which occurred on the monolayer surface. The comprehensive analysis also provided the basis for the application of KBC to practical production. These outcomes suggested that KBC may become a new option for the effluent treatment.
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