Development of sulfonated polystyrene resin-supported tungsten oxide for Pb2+ ion sequestration†

IF 3.9 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

RSC Advances Pub Date : 2025-05-01 DOI:10.1039/D5RA01017A

Kashmala Khaliq, Mohsin Ali Raza Anjum, Shabnam Shahida, Ramzan Akhtar, Adil Khan, Munib Ahmad Shafiq, Iqra Rafiq, Muhammad Rehan, Rashid Nazir Qureshi, Sajid Iqbal, Jong-Il Yun and Muhammad Saifullah

{"title":"Development of sulfonated polystyrene resin-supported tungsten oxide for Pb2+ ion sequestration†","authors":"Kashmala Khaliq, Mohsin Ali Raza Anjum, Shabnam Shahida, Ramzan Akhtar, Adil Khan, Munib Ahmad Shafiq, Iqra Rafiq, Muhammad Rehan, Rashid Nazir Qureshi, Sajid Iqbal, Jong-Il Yun and Muhammad Saifullah","doi":"10.1039/D5RA01017A","DOIUrl":null,"url":null,"abstract":"A sulfonated polystyrene resin-supported tungsten oxide (SO3-PSWO) was synthesized and evaluated for its efficiency in removing lead (Pb2+) from aqueous solutions. Morphology, phase purity, structural properties, thermal stability, and elemental composition of SO3-PSWO, are evaluated using SEM, XRD, FTIR, TGA, and CHNS analyzers. The ICP-OES technique was utilized for quantitative measurements of the Pb2+ ions. The influence of key parameters such as pH, adsorbent dose, contact time, metal ion concentration, temperature, and interference of competing ions on Pb2+ removal is systematically investigated. Under optimum conditions (pH 3.5–5.5), SO3-PSWO achieved a maximum Pb2+ removal efficiency of 99.7% within one hour and demonstrated an exceptional adsorption capacity of 386 mg g−1, as described by the Langmuir isotherm model. Kinetic analysis revealed a pseudo-second-order mechanism, highlighting chemisorption as the predominant process. Thermodynamic studies indicated an exothermic and spontaneous adsorption behavior. With its easy synthesis, cost-effectiveness, rapid kinetics, high adsorption capacity, and superior efficiency, SO3-PSWO emerges as a promising material for the remediation of Pb2+ contamination in water treatment applications.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 18","pages":" 14158-14169"},"PeriodicalIF":3.9000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra01017a?page=search","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"RSC Advances","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/ra/d5ra01017a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

A sulfonated polystyrene resin-supported tungsten oxide (SO₃-PSWO) was synthesized and evaluated for its efficiency in removing lead (Pb²⁺) from aqueous solutions. Morphology, phase purity, structural properties, thermal stability, and elemental composition of SO₃-PSWO, are evaluated using SEM, XRD, FTIR, TGA, and CHNS analyzers. The ICP-OES technique was utilized for quantitative measurements of the Pb²⁺ ions. The influence of key parameters such as pH, adsorbent dose, contact time, metal ion concentration, temperature, and interference of competing ions on Pb²⁺ removal is systematically investigated. Under optimum conditions (pH 3.5–5.5), SO₃-PSWO achieved a maximum Pb²⁺ removal efficiency of 99.7% within one hour and demonstrated an exceptional adsorption capacity of 386 mg g⁻¹, as described by the Langmuir isotherm model. Kinetic analysis revealed a pseudo-second-order mechanism, highlighting chemisorption as the predominant process. Thermodynamic studies indicated an exothermic and spontaneous adsorption behavior. With its easy synthesis, cost-effectiveness, rapid kinetics, high adsorption capacity, and superior efficiency, SO₃-PSWO emerges as a promising material for the remediation of Pb²⁺ contamination in water treatment applications.

查看原文本刊更多论文

磺化聚苯乙烯树脂负载氧化钨螯合Pb2+离子的研制

合成了一种磺化聚苯乙烯树脂负载的氧化钨（SO3-PSWO），并对其去除水中铅（Pb2+）的效率进行了评价。采用SEM， XRD， FTIR， TGA和CHNS分析仪对SO3-PSWO的形貌，相纯度，结构性能，热稳定性和元素组成进行了评估。ICP-OES技术用于Pb2+离子的定量测量。系统研究了pH、吸附剂剂量、接触时间、金属离子浓度、温度、竞争离子干扰等关键参数对Pb2+去除率的影响。根据Langmuir等温模型，在最佳条件（pH 3.5 ~ 5.5）下，SO3-PSWO在1小时内的Pb2+去除率达到99.7%，吸附量达到386 mg g−1。动力学分析揭示了一个伪二级机制，强调化学吸附是主要过程。热力学研究表明其具有放热自发吸附行为。SO3-PSWO具有合成简单、成本效益高、动力学快、吸附量大、效率高等优点，是水处理中修复Pb2+污染的理想材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

RSC Advances chemical sciences-

CiteScore

7.50

自引率

2.60%

发文量

3116

审稿时长

1.6 months

期刊介绍： An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.