Synthesis of sodium polystyrene sulfonate resins for the removal of methylene blue from wastewater

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2024-04-11 DOI:10.1016/j.jtice.2024.105501

Jue Wang , Jia Yu , Mengxiang Li , Yadong Zhang

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Abstract

Background

The treatment of dye residue water pollution is a hot research topic, so it is necessary to prepare a resin which can adsorb dye efficiently.

Methods

The sodium polystyrene sulfonate (PSSNa) were prepared by the sulfonation reaction of styrene resins with concentrated sulfuric acid and applied for Methylene Blue adsorption in wastewater. The structure of PSSNa was characterized by FT-IR, SEM, XPS and XRD.

Significant findings

The results show that the maximum adsorption capacity is 16.89 mg∙g⁻¹. The adsorption processes of Methylene Blue with PSSNa conforms to the pseudo-second-order kinetic model and the Langmuir isotherm adsorption model, which means that the adsorption process follows single-molecular layer adsorption mechanism. The characteristic group (–SO₃⁻) of the exchange resin interacts electrostatic with MB. Good desorption was achieved with 1 mol·L⁻¹ HCl solution, and the resin retained good adsorption capacity after 5 adsorption-desorption cycles. In practical applications, PSSNa exhibits a good removal efficiency for dyes containing MB in lake water. These results provide a reference for the treatment of printing and dyeing wastewater by resin adsorption materials.

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合成用于去除废水中亚甲基蓝的聚苯乙烯磺酸钠树脂

背景染料残留水污染的治理是一个热点研究课题，因此制备一种能高效吸附染料的树脂十分必要。结果表明，PSSNa 的最大吸附容量为 16.89 mg∙g-1。亚甲基蓝与 PSSNa 的吸附过程符合伪二阶动力学模型和 Langmuir 等温线吸附模型，即吸附过程遵循单分子层吸附机理。交换树脂的特征基团（-SO3-）与甲基溴发生静电作用。在 1 mol-L-1 HCl 溶液中可以实现良好的解吸效果，而且树脂在经过 5 次吸附-解吸循环后仍能保持良好的吸附能力。在实际应用中，PSSNa 对湖水中含有甲基溴的染料具有良好的去除效率。这些结果为利用树脂吸附材料处理印染废水提供了参考。

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.