在水溶液中Cu (II) 和Pb (II) 的吸附通过生物炭复合材料
Xiaoyan Wang1, Xiao Wang1, Wanke Chen1
1Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma'anshan 243002, China.
ACS omega
|April 21, 2025
概括
这项研究开发了一种吸管生物碳复合材料 (TBS) 用于重金属的去除. TBS有效地从水中吸附铜 (Cu) 和 (Pb),显示出作为成本有效的吸附剂的潜力.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- 水中的重金属污染对环境和健康构成重大风险.
- 开发高效且具有成本效益的吸附剂对于水资源整治至关重要.
研究的目的:
- 合成和描述一种新的草生物碳复合材料 (TBS).
- 为了研究TBS在水溶液中的Cu (II) 和Pb (II) 的吸附性能.
- 为了阐明吸附机制和热力学特性.
主要方法:
- 生物炭 (TB) 和生物炭复合材料 (TBS) 通过热解和与污泥 (TS) 混合制备.
- 使用扫描电子显微镜 (SEM) 和富里埃变换红外光谱 (FTIR) 的材料表征.
- 对Cu (II) 和Pb (II) 的吸附实验,动力,同热和热力学分析.
主要成果:
- TBS表现出显著的孔隙结构和丰富的功能组 (基,基,碳基).
- 对Cu (II) 和Pb (II) 的最大吸附能力分别为60.86和46.98毫克/克.
- 吸附跟随伪二次动力学和弗洛伊德利希等热量,表明化学吸附和多层吸附.
- 热力学分析证实了自发的,内热的,增加的吸附过程.
结论:
- 在水中,TBS表现出优异的Cu (II) 和Pb (II) 清除能力.
- 该材料的结构特性支持高效的重金属吸附.
- TBS是一种有前途的,具有成本效益的重金属修复吸附剂.
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