Efficient adsorption of heavy metal ions chromium (III) by modified corn starch/GO composite aerogel

IF 2.4 3区化学 Q3 POLYMER SCIENCE

Iranian Polymer Journal Pub Date : 2024-05-17 DOI:10.1007/s13726-024-01326-5

Dequan Wei, Shenghua Lv, Shanshan Zhang, Jingjing Zuo, Shan Liang, Juhui Yang, Jialin Wang

{"title":"Efficient adsorption of heavy metal ions chromium (III) by modified corn starch/GO composite aerogel","authors":"Dequan Wei, Shenghua Lv, Shanshan Zhang, Jingjing Zuo, Shan Liang, Juhui Yang, Jialin Wang","doi":"10.1007/s13726-024-01326-5","DOIUrl":null,"url":null,"abstract":"<div><p>Starch is a natural polymer containing a large number of active hydroxyl groups, which make it an ideal material for preparation of adsorption functional aerogels. In this work, a modified carboxymethyl corn starch/organic glass composite aerogel (CMSHA-GO) was successfully prepared using starch as raw material and hexamethylenediamine as cross-linking agent. It showed significant adsorption properties for heavy metal ions. When the composite aerogel was introduced with 10 mg GO, the adsorption capacity of CMSHA-GO<sub>10</sub> aerogel for heavy metal ions was in the order of Cr<sup>3+</sup> > Ni<sup>2+</sup> > Cu<sup>2+</sup> > Cr(VI) > Pb<sup>2+</sup>, while its adsorption performance for heavy metal ion Cr<sup>3+</sup> was mainly discussed. The structures and morphologies of the composite aerogels were characterized by FTIR, XRD, and SEM techniques. The results showed that the CMSHA-GO composite aerogel has a stable three-dimensional mesh-like porous structure with good conditions for metal ion adsorption. In addition, the effects of different GO contents, pH values, and time conditions on the adsorption of metal ions by the CMSHA-GO composite aerogel were discussed. When the weight ratio of carboxymethyl starch: hexanediamine: GO was 10:0.1:0.1, the CMSHA-GO<sub>10</sub> composite aerogel showed the best adsorption performance for Cr<sup>3+</sup> ions. The adsorption equilibrium was reached within 3 h at an initial Cr<sup>3+</sup> concentration of 500 mg·L<sup>−1</sup>, with a maximum equilibrium adsorption capacity (<i>q</i><sub>e</sub><sup>cale</sup>) of 212.7 mg/g.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"33 10","pages":"1469 - 1480"},"PeriodicalIF":2.4000,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Polymer Journal","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s13726-024-01326-5","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

Starch is a natural polymer containing a large number of active hydroxyl groups, which make it an ideal material for preparation of adsorption functional aerogels. In this work, a modified carboxymethyl corn starch/organic glass composite aerogel (CMSHA-GO) was successfully prepared using starch as raw material and hexamethylenediamine as cross-linking agent. It showed significant adsorption properties for heavy metal ions. When the composite aerogel was introduced with 10 mg GO, the adsorption capacity of CMSHA-GO₁₀ aerogel for heavy metal ions was in the order of Cr³⁺ > Ni²⁺ > Cu²⁺ > Cr(VI) > Pb²⁺, while its adsorption performance for heavy metal ion Cr³⁺ was mainly discussed. The structures and morphologies of the composite aerogels were characterized by FTIR, XRD, and SEM techniques. The results showed that the CMSHA-GO composite aerogel has a stable three-dimensional mesh-like porous structure with good conditions for metal ion adsorption. In addition, the effects of different GO contents, pH values, and time conditions on the adsorption of metal ions by the CMSHA-GO composite aerogel were discussed. When the weight ratio of carboxymethyl starch: hexanediamine: GO was 10:0.1:0.1, the CMSHA-GO₁₀ composite aerogel showed the best adsorption performance for Cr³⁺ ions. The adsorption equilibrium was reached within 3 h at an initial Cr³⁺ concentration of 500 mg·L⁻¹, with a maximum equilibrium adsorption capacity (q_e^cale) of 212.7 mg/g.

Graphical abstract

Abstract Image

查看原文本刊更多论文

改性玉米淀粉/GO 复合气凝胶对重金属离子铬 (III) 的高效吸附

淀粉是一种天然聚合物，含有大量活性羟基，是制备吸附功能气凝胶的理想材料。本研究以淀粉为原料，六亚甲基二胺为交联剂，成功制备了改性羧甲基玉米淀粉/有机玻璃复合气凝胶（CMSHA-GO）。它对重金属离子具有明显的吸附特性。当复合气凝胶中引入 10 mg GO 时，CMSHA-GO10 气凝胶对重金属离子的吸附能力依次为 Cr3+ > Ni2+ > Cu2+ > Cr(VI) > Pb2+，主要讨论了其对重金属离子 Cr3+ 的吸附性能。傅立叶变换红外光谱、X射线衍射和扫描电镜技术对复合气凝胶的结构和形貌进行了表征。结果表明，CMSHA-GO 复合气凝胶具有稳定的三维网状多孔结构，具有良好的金属离子吸附条件。此外，还讨论了不同的 GO 含量、pH 值和时间条件对 CMSHA-GO 复合气凝胶吸附金属离子的影响。当羧甲基淀粉：己二胺：GO 的重量比为 10:0.1:0.2 时，CMSHA-GO 复合气凝胶对金属离子的吸附效果最好：GO的重量比为10:0.1:0.1时，CMSHA-GO10复合气凝胶对Cr3+离子的吸附性能最好。在初始 Cr3+ 浓度为 500 mg-L-1 时，3 h 内达到吸附平衡，最大平衡吸附容量（qecale）为 212.7 mg/g。

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

Iranian Polymer Journal 化学-高分子科学

CiteScore

4.90

自引率

9.70%

发文量

107

审稿时长

2.8 months

期刊介绍： Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.