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题名: Effect of H2O2 concentrations on copper removal using the modified hydrothermal biochar
作者: Zuo, XiaoJun; Liu, Zhengang; Chen, MinDong
刊名: BIORESOURCE TECHNOLOGY
出版日期: 2016-05
卷号: 207, 页码:262-267
关键词: Sorption ; Copper ; Hydrothermal biochar ; H2O2 ; Carboxylic group
DOI: 10.1016/j.biortech.2016.02.032
部门归属: 固体废弃物处理与资源化实验室
英文摘要: This study investigated effect of H2O2 concentrations on copper removal using H2O2 modified hydrothermal carbonization Cymbopogon schoenanthus L. Spreng (HLG). Sorption behaviors of Cu (II) on the modified HLG by 20% H2O2 (mHLG2) could be the most desirable. Based on Langmuir isotherm, the maximum amount of Cu (II) uptake was in the sequence of mHLG2 (53.8 mg g (1)) > mHLG1 (44.2 mg g (1)) > mHLG3 (42.0 mg g (1)) > mHLG0 (35.8 mg g (1)), which was higher than the results from majority of previous studies, suggesting that H2O2 modification advanced sorption capacity of hydrothermal biochars evidently. Effect mechanisms exploration indicated that the difference of Cu (II) removal by biochars before and after the modification was mainly related to functional groups. Carboxylic group was responsible for the best sorption property of Cu (II) by mHLG2, which was attributed to its significant relationships with H2O2 modification and Cu (II) removal. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35777
Appears in Collections:固体废弃物处理与资源化实验室_期刊论文

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