从水溶液中有效地去除重金属,使用基于甘残留的凝吸附剂
Xiaochun Yin1,2, Ting Ke2, Hai Zhu2
1Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, USA.
Gels (Basel, Switzerland)
|July 28, 2023
概括
甘残留物 (LR) 用于制造用于重金属去除的新型水凝. LR-EPI-8水凝对,和铜具有很高的吸附能力,提供了一个环保的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 水溶液中的重金属污染对环境和健康构成重大风险.
- 吸附是一种有前途的重金属去除技术.
- 利用废物材料进行吸附剂合成提供了可持续的解决方案.
研究的目的:
- 从甘残留物 (LR) 合成和表征新型水凝,用于去除重金属.
- 为了评估LR-EPI水凝对Pb2+,Cu2+和Cr3+的吸附性能.
- 为了研究吸附机制和动力学.
主要方法:
- 通过与化水素 (EPI) 交叉连接LR进行水凝合成.
- 使用FTIR和SEM进行表征.
- 批量吸附研究以确定重金属去除效率和能力.
- 动力和同热模拟 (伪二阶,兰木尔).
- 使用XPS和FTIR进行机制调查.
主要成果:
- 成功合成了多孔的LR-EPI水凝.
- LR-EPI-8水凝显示出高吸附能力:Pb2+为591.8 mg/g,Cr3+为458.3 mg/g,Cu2+为121.4 mg/g. 这两种水凝具有较高的吸附能力.
- 吸附遵循了伪二次动力学和兰木尔对Pb2+和Cu2+的同温.
- 吸附机制涉及离子交换和静电相互作用.
结论:
- LR-EPI-8水凝是一种有效和环保的吸附剂,用于去除重金属.
- 这种方法为利用中国草药残留物提供了一种可持续的方法.
- 该研究有助于重金属的废物到废物整治策略.
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