酸酸通过一种新的酸/酸双网水凝在广泛的pH范围内有效吸附
Koukou Tao1, Boqiang Gao2, Na Li1
1State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
The Science of the total environment
|November 28, 2023
概括
一种新的酸/酸 (SA/TA) 水凝有效地从水中去除抗病毒药物,如黄酸. 这种双网络吸附剂在广泛的pH范围内表现出强大的性能,为净化水提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 水中抗病毒药物的污染对环境和健康构成风险.
- 开发高效和稳定的吸附剂对于水资源整治至关重要.
- 甲基酸盐 (SA) 水凝显示出潜力,但需要结构增强以提高性能.
研究的目的:
- 设计和制造一种新的双网复合水凝 (SA/TA),用于增强抗病毒药物的吸附.
- 为了研究SA/TA在水中清除酸 (CQ) 的吸附性能.
- 探索潜在的吸附机制和SA/TA水凝的稳定性.
主要方法:
- 通过与Ti (IV) 和Ca (II) 连续交叉连接制造SA/TA水凝.
- 在不同条件下 (pH,时间,度,共存物质) 对CQ吸附的系统研究.
- 使用光谱技术对吸附机制的表征和对吸附-脱附周期的评估.
主要成果:
- 该SA/TA水凝表现出增强的机械强度和抗膨胀性能.
- 在广泛的pH范围 (3.0-10.0) 上,SA/TA表现出高稳定的CQ吸附能力.
- 在pH值9.0的1:1SA/TA比率下,达到0.699mmol/g的最大CQ吸收;吸附包括化,静电,π-π相互作用和结合.
结论:
- 这种SA/TA双网水凝是CQ和其他抗病毒药物的高效吸附剂.
- TA-Ti (IV) 协调网络显著提高了吸附性能和稳定性.
- 这项研究提出了一个可行的策略,用于开发先进的吸附剂,以从水中去除制药污染物.
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