用十二烷基-甲基咪唑鎓十二烷基硫酸盐 GUMBOS - 海藻酸磁珠增强亚甲基蓝的萃取。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere Pub Date : 2025-02-01 DOI:10.1016/j.chemosphere.2024.143991

Taiwo Bakare-Abidola, William J.A. Russell, Kyle Jorgensen, Rocío L. Pérez

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引用次数: 0

摘要

本研究合成了十二烷基甲基咪唑十二烷基磺酸（[C12MIm][DS]） GUMBOS，并将其与γ-Fe2O3掺入海藻酸盐中制备了磁性吸附珠（[C₁₂MIm][DS]-珠），用于去除亚甲基蓝（MB）。通过ESI-MS， FT-IR， SEM， BET和TGA表征证实了它们的结构和性能。根据拟一级动力学和Langmuir等温模型，在pH为10、初始MB浓度为500 mg/L的条件下，微珠的最大吸附量为4.5 mg/g。热力学研究证实这一过程是放热的。即使经过6次循环，微球仍保持相似的形态，MB去除率为57.6%。在Cu2 +、布洛芬和孔雀石绿的存在下，微珠的吸附效率高达70%，与单独去除MB相当。这些结果突出了[C12MIm][DS]-微珠作为有效吸附剂在水修复中的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Enhanced extraction of methylene blue by dodecyl-methyl imidazolium dodecyl sulfate GUMBOS - magnetic alginate beads

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Enhanced extraction of methylene blue by dodecyl-methyl imidazolium dodecyl sulfate GUMBOS - magnetic alginate beads

In this study, dodecyl-methyl imidazolium dodecyl sulfonate ([C₁₂MIm][DS]) GUMBOS were synthesized and incorporated into alginate with γ-Fe₂O₃ to fabricate magnetic adsorbent beads ([C₁₂MIm][DS]-beads) for methylene blue (MB) removal. Characterization via ESI-MS, FT-IR, SEM, BET, and TGA confirmed their structure and properties. The beads achieved a maximum adsorption capacity of 4.5 mg/g at pH 10 with an initial MB concentration of 500 mg/L, following pseudo-first-order kinetics and the Langmuir isotherm model. Thermodynamic studies confirmed the process was exothermic. Even after six recycling cycles, the beads retained similar morphology and an MB removal percentage of 57.6%. The beads demonstrated high adsorption efficiency (70%) in the presence of Cu²⁺, ibuprofen, and malachite green, comparable to MB removal alone. These results highlight the potential of [C₁₂MIm][DS]-beads as effective adsorbents for water remediation applications.

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来源期刊

Chemosphere 环境科学-环境科学

CiteScore

15.80

自引率

8.00%

发文量

4975

审稿时长

3.4 months

期刊介绍： Chemosphere, being an international multidisciplinary journal, is dedicated to publishing original communications and review articles on chemicals in the environment. The scope covers a wide range of topics, including the identification, quantification, behavior, fate, toxicology, treatment, and remediation of chemicals in the bio-, hydro-, litho-, and atmosphere, ensuring the broad dissemination of research in this field.