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IF 2.6 4区化学 Q3 POLYMER SCIENCE

Journal of Polymer Research Pub Date : 2024-12-15 DOI:10.1007/s10965-024-04226-7

Jordan B. Neris, José Arnaldo S. Costa, Caio M. Paranhos

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引用次数: 0

摘要

近年来，随着全球工业活动的增加，含有潜在有毒物质（PTEs）的废水排放量也随之增加。本研究旨在采用 Doehlert 设计方法，评估基于聚醚砜/介质材料的混合基质膜（MMMs）在不同水体系中对 PTEs（Cd2+、Cr6+、Ni2+ 和 Pb2+）的吸附能力。MCM-41 通过水热法合成，并通过接枝法进行改性（NH2-MCM-41 和 SH-MCM-41）。通过相反转法获得了 MMMs。PTEs 的定量采用电感耦合等离子体光发射光谱法（ICP OES）。初步吸附结果表明，膜对所研究的 PTEs 的吸附能力没有明显差异。使用基于 PES/SH-MCM-41 的 MMM（MMM-S）进行的深入研究表明，自变量 X2（PTEs 初始浓度）对 MMM-S 的吸附能力有显著影响。相反，pH 值、接触时间和 MMM 中 SH-MCM-41 的用量对吸附过程没有显著影响。此外，在初始 PTEs 浓度为 0.332 mmol L-1、pH 值为 5、搅拌（300 rpm）39 分钟、使用 6% 的 SH-MCM-41 合成的 MMM 的批量吸附系统中，观察到 PTEs 的最大吸附容量值。在渗透系统中，MMM-S2 的性能最佳，渗透率最低，PTEs 去除率最高。

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Remediation of potentially toxic elements from aqueous solutions utilizing mixed matrix membranes (MMMs) based on polyethersulfone and functionalized mesoporous arrangements

The recent increase in world industrial activities has resulted in higher wastewater discharge containing potentially toxic species (PTEs) into the aquatic environment. This study aimed to evaluate the PES/mesomaterial-based mixed matrix membranes (MMMs) adsorption capacities for PTEs (Cd²⁺, Cr⁶⁺, Ni²⁺, and Pb²⁺) in different aqueous systems using a Doehlert design method. The MCM-41 synthesis was performed via the hydrothermal method and modified via the grafting method (NH₂-MCM-41 and SH-MCM-41). The MMMs were obtained by the phase inversion method. PTEs quantification was performed by inductively coupled plasma optical emission spectrometry (ICP OES). Preliminary adsorption results showed no significant differences between the membrane adsorption capacities for the PTEs studied. The in-depth study using the PES/SH-MCM-41-based MMMs (MMM-S) showed a significant influence of the independent variable X₂ (initial PTEs concentration) in the MMM-S adsorption capacities. Contrary, pH, contact time and amount of SH-MCM-41 into the MMMs does not significantly affect the adsorption process. Also, maximum adsorption capacity values of PTEs were observed in batch adsorption systems with an initial PTEs concentration of 0.332 mmol L⁻¹, at pH 5, under agitation (300 rpm) for 39 min and using a MMM synthesized with 6% of SH-MCM-41. In the permeation system, the MMM-S2 presented the best performance with the lowest permeability rates and the highest removal percentage of PTEs.

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来源期刊

Journal of Polymer Research 化学-高分子科学

CiteScore

4.70

自引率

7.10%

发文量

472

审稿时长

3.6 months

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.