云点提取与衍生光谱学相结合的应用,以从水溶液中去除Cresol Red和Methyl Orange染料的二元混合物:Box-behnken设计优化
Shahnaz Sargazi1,2, Mohammad Taghi Ghaneian1, Mashaallah Rahmani3
1Environmental Sciences and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Heliyon
|November 18, 2024
概括
云点提取有效地使用Triton X-100和NaCl从水中去除了Cresol Red (CR) 和Methyl Orange (MO) 阳离子染料. 实现了高染料回收率和优化条件,证明了强大的水净化方法.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
背景情况:
- 诸如克雷索红色 (CR) 和甲基色 (MO) 这样的阳离子染料在水溶液中构成环境挑战.
- 有效地去除这些染料对于水质管理至关重要.
研究的目的:
- 开发和优化云点提取 (CPE) 方法,同时从二进制水性混合物中去除CR和MO.
- 通过响应表面方法 (RSM) 研究关键参数对染料去除效率的影响.
主要方法:
- 云点提取 (CPE) 使用Triton X-100和NaCl在pH值5.7.
- 一级导数光谱测量用于CR和MO量化.
- 在RSM内进行盒式设计 (BBD),以优化表面活性剂度,温度和时间.
- 动力和同热模型 (伪第一阶和兰格穆尔).
主要成果:
- 在CR (94.399.5%) 和MO (94.699.1%) 实现了高回收率.
- RSM提供了一个二次模型 (R2 ≥ 0.97),准确地预测着染料去除.
- 伪第一阶动力学和兰格穆尔异热量最好地描述了吸附过程.
- 确定了两种染料的最大单层吸附能力 (Qmax).
结论:
- CPE是一种高效的技术,用于从水中去除CR和MO离子染料.
- RSM有效地优化了提取参数,以最大限度地去除染料.
- 这项研究为这些染料的吸附行为和吸附能力提供了宝贵的见解.
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