功能化的可持续纤维素自我纠单质吸附剂的支持平台,用于有效吸附 (II) 离子
Yuting Dai1, Yao Zhu2, Zhangdi Li1
1School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
Langmuir : the ACS journal of surfaces and colloids
|February 20, 2024
概括
这项研究开发了一种新型的纤维纤维吸附剂,其功能与UiO-66金属有机框架 (MOFs) 相结合,以有效地从废水中去除离子. 该材料显示出出色的吸附能力和实际环境修复应用的潜力.
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:
- (II) 离子污染由于其毒性和生物积累而构成重大环境和健康风险.
- 开发有效的吸附剂来从废水中去除重金属至关重要.
研究的目的:
- 制造和评估用于离子 (Cd2+) 清除的UiO-66-(COOH) 2-功能化的纤维素纤维 (UCLF) 吸附剂.
- 研究开发的吸附剂的吸附能力,机制和实际适用性.
主要方法:
- 通过物理混合将UiO-66-(COOH) 2的金属有机框架 (MOF) 纳入纤维素纤维.
- 吸附剂结构和性能通过批量实验,动力学,异热和热力学进行表征.
- 使用pH效应和X射线光电谱 (XPS) 分析吸附机制.
主要成果:
- 单立体UCLF吸附剂使用可持续生物质成功制造.
- 该UCLF-2吸附剂 (10重量% UiO-66-(COOH) 2) 取得了优异的Cd2+吸附能力,达到96.10 mg/g.
- 吸附随后是自发的,外热的,单层化学吸附,可能涉及协调和静电吸引.
结论:
- UCLF吸附剂显示出高效率和在废水净化中实际应用的潜力.
- 这项研究提出了一种用于重金属去除的MOF材料的新型策略.
- 开发的吸附剂为污染水处理提供了可持续和有效的解决方案.
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