研究基于曲Al13-CS-CTA的吸附剂及其在废水中去除CR的应用
Hanjie Chen1, Mei Zhang1, Shuyang Chen1
1Materials Science and Engineering Department, Nanjing Tech University Nanjing 210000 China chenhanjie@njtech.edu.cn.
RSC advances
|April 29, 2024
概括
一种基于本托尼特的新型复合物有效地从水中去除了刚果红色染料. 这种吸附剂显示出高容量和自发的内热吸附过程,使其成为消除染料的有希望的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 水处理 处理水的方法
背景情况:
- 刚果红 (CR) 是一种常见的织染料污染物.
- 从水溶液中有效地去除CR对于环境保护至关重要.
研究的目的:
- 开发和描述一种新的复合吸附剂,用于清除刚果红色.
- 研究吸附机制并优化去除条件.
主要方法:
- 合成一个本托尼特-Al13-奇托桑-酸 (bent-Al13-CS-CTA) 复合物.
- 使用XRD,BET,SEM和FTIR进行表征.
- 吸附实验改变pH值,接触时间,温度,CR度和吸附剂剂量.
主要成果:
- 复合结构通过物理化学和结构分析得到证实.
- 吸附动力学遵循伪二阶模型.
- 兰慕尔的异热模型最好地描述了吸附,在pH9下最大容量为476.8mgg-1,2gL-1吸附剂剂量,25°C时最大容量为476.8mgg-1.
- 热力学分析表明,这是一个自发的,内热吸附过程.
结论:
- 曲-Al13-CS-CTA复合物是刚果红色去除的高效吸附剂.
- 吸附过程在特定条件下是有利的,是自发的和内热的.
- 这种材料显示出在废水处理中实际应用的潜力.
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