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高效的去除被吸附的阴离子染料通过双网络酸盐基凝去除

Changrui Miao¹, Wenjun Huang¹, Keni Li¹

¹College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China; Institute of Water Treatment Chemistry, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China.

Environmental research

|October 20, 2024

概括

一种基于酸盐的新型水凝 (CMAPP) 有效地从废水中去除甲蓝 (MB) 和马拉绿 (MG) 等阴阳性染料. 这种吸附剂显示出高效率,良好的可回收性和处理复杂工业废水的潜力.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
聚合物科学聚合物科学

背景情况:

工业活动造成的染料污染对环境构成重大威胁.
从废水中有效地去除阴阳性染料对于环境保护至关重要.
基于酸盐的材料为吸附应用提供了有前途的性能.

研究的目的:

为了合成和表征一种新的双网络基托基水凝 (CMAPP).
评估CMAPP的吸附性能,用于四种阴阳性染料:甲蓝 (MB),马六合绿 (MG),晶紫 (CV) 和基本素 (BF).
研究CMAPP水凝的吸附机制,动力学,热力学和可回收性.

主要方法:

用于制备水凝的Sol-gel方法.
使用FTIR,XRD,SEM,EDS,XPS,TGA和泽塔潜力的物理化学表征.
吸附研究分析pH值,温度,初始染料度,接触时间和吸附剂剂量的影响.
动力,同热和热力学建模.
可回收性和干扰性研究.

主要成果:

在500mg/L的CMAPP水凝中,MB (97.62%),MG (96.67%),CV (98.12%) 和BF (99.32%) 的高清除效率被证明是很高的.
吸附遵循伪二次动力学和兰格穆尔等温模型.
发现吸附过程是外热的和自发的.
水凝在五个循环后保持了大约80%的去除效率,这表明它具有良好的可回收性.
对CV和BF,CMAPP显示出优越的抗干扰能力.

结论:

合成的CMAPP水凝是一种有效的吸附剂,用于阴阳性染料.
静电吸引力,键和n-π相互作用是主要的吸附机制.
在处理复杂染料污染废水方面,CMAPP具有重要的实际应用潜力.
这项研究提供了一种创新的方法来去除染料和废水处理.

关键词:

抗干扰吸附的反干扰吸附方式基托桑是一种酸盐.非常高效的去除方式.物理化学修饰物理化学修饰

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