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一个有效的Sol-Gel-Functionalized聚氨泡固体平台包装的小柱子,用于从水中完全提取 (VI):动力学,吸附同温,热力学研究和分析实用

Effat A Bahaidarah¹

¹Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.

International journal of analytical chemistry

|October 8, 2024

概括

本研究介绍了sol-gel-functionalized聚氨泡 (PUFs) 作为一种有效的方法来从水中去除 (VI). 这些新型提取器在捕获用于水处理应用的物种方面表现出高容量和效率.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
分析化学分析化学

背景情况:

索尔凝技术对于开发先进的分散型固相微提取器 (d-μSPME) 是至关重要的.
从复杂的矩阵中有效地去除有机和无机污染物仍然是一个重大的环境挑战.

研究的目的:

开发和评估sol-gel-functionalized聚氨泡 (PUFs) 作为一种新的固相提取平台.
使用开发的材料从水性介质中完全提取 (VI) 种类.

主要方法:

将PUF与sol-gel材料的功能化,以创建一个新的吸附剂.
研究涉及离子协同物,H键和静电相互作用的提取机制.
优化分析参数,包括pH值,酸类型,时间,温度和初始Cr (VI) 度.
(VI) 吸附的吸附能力,动力学和热力学特征.

主要成果:

用sol-gel处理的PUF表现出高吸收能力 (9.9 mg·g-1),与兰慕尔吸附预测 (12.08 mg·g-1) 相美.
吸附动力学遵循伪第一阶模型,表明有效的去除.
吸附过程是内热和自发的,热力学参数支持提取 (VI) 的可行性.

结论:

溶凝功能化的PUF是一种有希望的,低成本的材料,可以从水中完全去除 (VI).
开发的方法是有效的微量 (VI) 提取和分析水样.
装有吸附剂的小柱子为水处理应用提供了可行的解决方案.

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