Efficient removal of methylene blue dye from aqueous media via acrylic acid grafted Guggul gum-based hydrogel

IF 3.1 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2025-03-10 DOI:10.1007/s00289-025-05711-9

Shabnum Saleem, Sonal Choudhary, Kashma Sharma, Vishal Sharma, Vaneet Kumar, Vijay Kumar

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引用次数: 0

Abstract

In this study, acrylic acid (AA) was graft copolymerized onto Guggul gum (GgG) using N, N-methylenebisacrylamide, and ammonium persulfate as the crosslinker-initiator system for the removal of methylene blue (MB) dye from aqueous solutions. The as-prepared and dye-adsorbed hydrogel samples were characterized using Fourier Transform Infrared spectroscopy, rheological studies, and Brunauer–Emmett–Teller surface area analysis. Adsorption experiments were conducted with cationic MB dye to evaluate the adsorption capabilities of the synthesized hydrogel. Various parameters, such as solution pH, adsorbent mass, dye concentration, contact time, and temperature, were varied to determine their effects on removal efficiency. The pseudo-second-order and Freundlich isotherm also provided a good fit for the adsorption process with a maximum adsorption capacity of 59.4884 mg/g. Thermodynamic analysis indicated that the adsorption process was endothermic, spontaneous, and accompanied by increased randomness. The hydrogel maintained 98% adsorption efficiency after 10 consecutive adsorption/desorption cycles. Therefore, the higher swelling rate, improved adsorption capacity, environmental friendliness, low cost, and regeneration capability of the GgG-cl-poly(AA) hydrogel make it a promising material for removing MB dye from aqueous solutions.

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丙烯酸接枝古古胶基水凝胶对水中亚甲基蓝染料的高效去除

本研究以N， N-亚甲基双丙烯酰胺和过硫酸铵为交联引发剂体系，将丙烯酸（AA）接枝到古格尔胶（GgG）上，用于脱除亚甲基蓝（MB）染料。利用傅里叶变换红外光谱、流变学研究和布鲁诺尔-埃米特-泰勒表面积分析对制备的和染料吸附的水凝胶样品进行了表征。用阳离子MB染料进行了吸附实验，评价了合成的水凝胶的吸附性能。研究了溶液pH、吸附剂质量、染料浓度、接触时间和温度等参数对去除率的影响。拟二阶等温线和Freundlich等温线也很适合吸附过程，最大吸附量为59.4884 mg/g。热力学分析表明，吸附过程是吸热的、自发的，且随机性增加。在连续10次吸附/解吸循环后，水凝胶的吸附效率保持在98%。因此，GgG-cl-poly（AA）水凝胶具有溶胀率高、吸附能力强、环境友好、成本低、再生能力强等优点，是一种很有前途的去除MB染料的材料。

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."