Gemini Quaternary Ammonium Surfactants with Different Counterions-modified Montmorillonite for Efficient Removal of Methyl Orange

IF 1.6 4区农林科学 Q3 CHEMISTRY, APPLIED

Journal of oleo science Pub Date : 2024-03-02 DOI:10.5650/jos.ess23174

Yuanhua Mo, Runyu Cao, Siqi Hu, Bowen Guan, Duojiao Fu, Hongqin Liu, Baocai Xu, Yang Xiao

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Abstract

Organic Na-montmorillonite (OMt-12-2-12·2Y ^– , Y=CH ₃ CO ₃ ^– , C ₆ H ₅ COO ^– and Br ^– ) modified by a series of Gemini quaternary ammonium surfactants with different counterions was prepared for enhancing the adsorption capacity of methyl orange. Compared with the initial adsorption capacity of 5.251 mg/g of Na-Mt, the adsorption effect of OMts under the optimal conditions increased by about 31~34 times. The adsorption isotherms and kinetics of all adsorption processes were respectively described by Langmuir and pseudo-second-order models. The structure, hydrophobicity and hydration of the counterions, as well as the affinity of the counterions with the long aliphatic chains, had a certain influence on the adsorption performance of OMts for methyl orange.

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具有不同反离子的双子季铵盐表面活性剂改性蒙脱石用于高效去除甲基橙

制备了由一系列具有不同反离子的双子座季铵表面活性剂改性的有机 Na-蒙脱石（OMt-12-2-12-2Y - ，Y=CH 3 CO 3 - ，C 6 H 5 COO - 和 Br - ），用于提高甲基橙的吸附容量。与 Na-Mt 5.251 mg/g 的初始吸附量相比，最佳条件下 OMts 的吸附效果提高了约 31~34 倍。所有吸附过程的吸附等温线和动力学分别由 Langmuir 模型和伪秒阶模型描述。反离子的结构、疏水性和水合性以及反离子与长脂肪族链的亲和性对 OMts 对甲基橙的吸附性能有一定的影响。

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来源期刊

Journal of oleo science CHEMISTRY, APPLIED-FOOD SCIENCE & TECHNOLOGY

CiteScore

3.20

自引率

6.70%

发文量

173

审稿时长

3 months

期刊介绍： The J. Oleo Sci. publishes original researches of high quality on chemistry, biochemistry and science of fats and oils such as related food products, detergents, natural products, petroleum products, lipids and related proteins and sugars. The Journal also encourages papers on chemistry and/or biochemistry as a major component combined with biological/ sensory/nutritional/toxicological evaluation related to agriculture and/or food.