负载型双官能化离子液体超声辅助钒吸附动力学研究

IF 4.7 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Transactions of Nonferrous Metals Society of China Pub Date : 2025-03-01 DOI:10.1016/S1003-6326(24)66730-0

Jia-hao ZHOU , Shen-xu BAO , Yi-min ZHANG , Bo CHEN , Yu LIANG , Xiao-chuan HOU , Si-yuan YANG , Yang PING

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引用次数: 0

摘要

研究了聚苯乙烯[1-丁基-3-甲基咪唑][二（2,4,4-三甲基戊基）膦酸酯]（PS[C4mim][C272]）在酸性渗滤液中对V(V)的吸附动力学。考察了超声功率和V(V)浓度对PS[C4mim][C272]吸附性能的影响。结果表明，与常规振荡相比，超声辐射显著缩短了吸附平衡时间，提高了PS[C4mim][C272]的吸附性能。在200 W的超声功率下，PS[C4mim][C272]的平衡吸附容量达到最大，为311.58 mg/g。动力学模型拟合结果表明，PS[C4mim][C272]在超声作用下的吸附过程严格遵循准二级动力学模型。采用收缩核模型和Weber - Morris模型分析表明，PS[C4mim][C272]的吸附过程主要受颗粒内扩散机制控制。吸附等温线模型研究表明，Langmuir等温线模型能有效拟合超声作用下PS[C4mim][C272]的吸附过程。

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Kinetic study of ultrasonic-assisted vanadium(V) adsorption by supported bifunctionalizedized ionic liquid

The adsorption kinetics of polystyrene [1-butyl-3-methylimidazolium][bis(2,4,4-trimethylpentyl)phosphinate] (PS[C₄mim][C272]) towards V(V) in acidic leachate was explored under ultrasound. The effects of ultrasonic power and V(V) concentration on the adsorption performance of PS[C₄mim][C272] were investigated. The results showed that ultrasonic radiation significantly shortened the adsorption equilibrium time and improved the adsorption performance of PS[C₄mim][C272] compared with the conventional oscillation. At an ultrasonic power of 200 W, the equilibrium adsorption capacity of PS[C₄mim][C272] reached its maximum of 311.58 mg/g. The kinetic model fitting results showed that the adsorption process of PS[C₄mim][C272] strictly followed the pseudo-second-order kinetic model under ultrasound. Analysis using the shrinking core model and the Weber−Morris model showed that the adsorption process of PS[C₄mim][C272] was primarily controlled by intra-particle diffusion mechanism. The adsorption isotherm model study showed that the Langmuir isotherm model could effectively fit the adsorption process of PS[C₄mim][C272] under ultrasound.

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来源期刊

Transactions of Nonferrous Metals Society of China 工程技术-冶金工程

CiteScore

7.40

自引率

17.80%

发文量

8456

审稿时长

3.6 months

期刊介绍： The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.