以硫为基础的功能化活性炭作为固相提取吸收剂的制造,用于在水中选择性分析化
Chang-Xian Zhao1, Chun-Gang Yuan1, Xue-Lei Duan1
1Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Baiyangdian Wetland Research Center, North China Electric Power University, Baoding 071000, China.
Journal of hazardous materials
|September 3, 2024
概括
一种新型的含硫活性炭 (SAC-6) 能够有效地分析由于硫而在水中的化 (Se(IV)).
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 对于环境监测而言,水中的化物 (Se(IV)) 分析至关重要.
- 现有的Se(IV) 检测方法可能很复杂或昂贵.
- 硫对化物的选择性为吸附剂开发提供了一个有前途的途径.
研究的目的:
- 开发一种简单,低成本的吸附剂,用于化石分析.
- 研究新吸附剂的吸附特性和机制.
- 为了验证吸附剂在现实世界水样中的性能.
主要方法:
- 使用XRD,TEM,BET和FT-IR,制备和表征含硫活性炭 (SAC-6).
- 静态和动态吸附实验以确定吸附能力和机制.
- 使用装有SAC-6的微柱进行固体相提取,用于Se(IV) 分析.
主要成果:
- 在广泛的pH范围 (3-11) 中,SAC-6证明了有效的Se(IV) 吸附.
- 吸附过程是自发的和外热的,遵循单层和混合机制.
- 在Se(IV) 分析中实现了低检测极限 (0.27μg/L) 和良好的精度 (RSD 1.34%) .
- 理论上的最大吸附能力计算为13.48 mg/g.
结论:
- SAC-6是一种高效和选择性的吸附剂,用于在水中提取和分析化.
- 开发的方法为环境水质监测提供了一个简单,低成本和准确的方法.
- 这项研究强调了基于硫的材料在选择性分析剂预缩方面的潜力.
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