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[在水溶液中为Cd²⁺制备基托桑修饰生物炭及其吸附机制]

Ling Jiang^1,2, Jing-Yue An¹, Xiao-Qiong Yue¹

¹School of Water and Environment, Chang'an University, Xi'an 710054, China.

Huan jing ke xue= Huanjing kexue

|March 12, 2024

概括

基托桑修饰的生物炭有效地从水中去除 (Cd2+). 这种环保吸附剂显示出高效率和良好的可回收性,使其对废水处理具有前景.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
绿色化学绿色化学

背景情况:

水中的 (Cd2+) 污染对环境和健康构成重大风险.
开发高效和可持续的吸附剂对于重金属的去除至关重要.

研究的目的:

准备和评估基托改性生物炭 (CBC) 作为一种低成本的吸附剂,用于Cd2+的去除.
为了研究CBC的吸附机制和性能.

主要方法:

进行了批量吸附实验,以评估Cd2+的去除效率.
使用SEM-EDS,FTIR和XPS进行的表面表征分析分析了吸附剂的特性.
吸附动力学和同热量被模拟使用伪二阶和兰格穆尔模型.

主要成果:

基托桑修饰显著提高了生物炭对Cd2+的吸附能力,这是由于引入了功能组 (-OH, -C=O, -NH2).
吸附跟随伪二阶动力学和兰格穆尔等温法,表明单层化学吸附.
CBC表现出良好的可回收性,在五个循环后保留了80%以上的容量.
关键的去除机制包括复合,沉,阴阳交换和阴阳-π 键.

结论:

基托改性生物炭是一种高效,低成本和可回收的吸附剂,用于Cd2+的去除.
该研究与可持续废水处理的绿色化学原则保持一致.
在Cd2+污染的水和土壤中,CBC显示了修复Cd2+污染水和土壤的巨大潜力.

关键词:

吸附剂是一种吸附剂.吸附机制是一种吸附机制.生物炭是一种生物炭.(Cd) 的污染污染.基多酸盐的使用方法

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