Synthesis and Characterization of Zero Valent Iron/Cellulose Acetate (Fe0-x/CA) Membranes for the Catalytic Degradation of Methylene Blue from Aqueous Media by Activating Peroxymonosulfate

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Surveys from Asia Pub Date : 2024-06-15 DOI:10.1007/s10563-024-09426-1

Muhammad Zohaib, Murtaza Sayed, Faiza Rehman, Saman Gul, Saima Noreen, Saima Sohni, Ikhtiar Gul, Adnan Ali

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Abstract

The present study is focused on the synthesis of zero-valent iron/cellulose acetate (Fe⁰-x/CA) membranes by phase inversion route for the activation of peroxymonosulfate (PMS). The generated ^•OH and SO₄^•− effectively degraded methylene blue (MB) dye in water to give comparatively non-toxic byproducts. The SEM investigations revealed that Fe⁰ nanoparticles are evenly dispersed into the CA membrane resulting in decline of agglomeration and enhancing the roughness of the composite surface. Moreover, the catalytic degradation of MB demonstrated that M5-alone showed 85% and was further boosted to 97% when coupled with PMS (M5/HSO₅⁻). The catalytic degradation of degradation of MB by M5/HSO₅⁻ membrane system in acidic, neutral, and basic media indicated that the degradation was 99.5%, 98.0%, 97.0%, 86.0% and 70.0% when the pH of the medium was 3, 5, 7, and 11, respectively. Furthermore, the degradation performance of M5/HSO₅⁻ membrane system was evaluated in de-ionized water (DIW), tape water (TPW) and industrial wastewater (IWW) and the results indicated that MB catalytic degradation was in the order of DIW (97%) > TPW (84%) > IWW (68%). Besides, various parameters like water flux permeability, contact angle, porosity, and fouling performance were also investigated. In addition, the degradation products were evaluated, and the degradation pathways were proposed accordingly.

Graphical Abstract

Abstract Image

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通过活化过氧单硫酸盐催化降解水介质中的亚甲基蓝的零阀铁/醋酸纤维素（Fe0-x/CA）膜的合成与特性分析

本研究的重点是通过相反转路线合成零价铁/醋酸纤维素（Fe0-x/CA）膜，用于活化过一硫酸盐（PMS）。生成的 -OH 和 SO4 能有效降解水中的亚甲基蓝（MB）染料，产生相对无毒的副产品。SEM 研究表明，Fe0 纳米粒子均匀地分散在 CA 膜中，从而减少了团聚，并提高了复合材料表面的粗糙度。此外，甲基溴的催化降解表明，单独使用 M5 的催化降解率为 85%，与 PMS（M5/HSO5-）结合使用时，催化降解率进一步提高到 97%。M5/HSO5- 膜系统在酸性、中性和碱性介质中催化降解甲基溴的结果表明，当介质的 pH 值为 3、5、7 和 11 时，降解率分别为 99.5%、98.0%、97.0%、86.0% 和 70.0%。此外，还评估了 M5/HSO5- 膜系统在去离子水（DIW）、胶带水（TPW）和工业废水（IWW）中的降解性能，结果表明甲基溴催化降解率依次为 DIW（97%）> TPW（84%）> IWW（68%）。此外，还研究了水通透性、接触角、孔隙率和结垢性能等各种参数。此外，还对降解产物进行了评估，并提出了相应的降解途径。

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来源期刊

Catalysis Surveys from Asia 化学-物理化学

CiteScore

4.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.