从无氧消化的猪废水中同时去除重金属和抗生素,通过功能化的共价有机框架
Yupei Zhang1, Shuai Zhang1, Yan Lin1
1College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China.
Environmental research
|February 21, 2025
概括
这项研究开发了COF@COOH,这是一种用于同时从废水中去除重金属和抗生素的新材料. 该材料具有很高的吸附能力和高效的降解,在环境修复方面表现出很好的稳定性.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 牲畜废水含有重金属和抗生素,造成环境风险.
- 同时去除这些污染物需要先进的双重功能材料.
研究的目的:
- 开发和评估一种功能化的共价有机框架 (COF@COOH),用于同时去除重金属和抗生素.
- 提高COF的吸附和光催化性能,用于废水处理.
主要方法:
- 合成乙烯基功能化COFs (COFs-V),然后用4-mercaptobenzoic acid进行接种,以产生COF@COOH.
- 使用FTIR和XPS进行表征,以确认卡基组的引入.
- 对从猪废水中去除Cu2+,Zn2+和四环素化物 (TC) 的COF@COOH性能进行系统研究.
主要成果:
- 与未经修改的COF相比,COF@COOH对Cu2+ (19.27 mg/g) 和Zn2+ (12.95 mg/g) 的吸附能力显著提高.
- 在5分钟内完全降解TC,具有100%的光催化效率和1.13分钟-1的速率常数.
- 材料表现出极好的稳定性,在五个循环后保持性能.
结论:
- 功能化战略有效地增强了COF活动地点,以消除高级污染物.
- COF@COOH是一种有前途的,稳定的,双重功能材料,可用于废水中重金属和抗生素的同时整治.
- 这种方法为处理复杂的畜牧废水提供了有效的解决方案.
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