• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

用于选择性去除重金属的工程化层状双氢氧化物-海藻酸盐复合水凝胶柱

Engineered LDH-alginate composite hydrogel columns for selective heavy metal removal.

作者信息

Hao Hualai

机构信息

Department of Plant Engineering, Sichuan Vocational and Technical College of Architecture, Deyang, China.

出版信息

Front Chem. 2025 Aug 7;13:1649831. doi: 10.3389/fchem.2025.1649831. eCollection 2025.

DOI:10.3389/fchem.2025.1649831
PMID:40896271
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12393887/
Abstract

INTRODUCTION

Heavy metal pollution poses significant food safety risks. To address this, a composite hydrogel composed of hydrotalcite and alginic acid was developed for adsorbing cationic heavy metal pollutants prevalent in food-related wastewater.

METHODS

The composite hydrogel was synthesized via hydrothermal methods and chemically crosslinked with calcium ions. Its adsorption capacity for representative cationic pollutants (Cu, Zn, Pb, Cd, Mn) was evaluated using Atomic Absorption Spectrometry (AAS). Cr and Cr(VI) were excluded due to their anionic speciation, incompatible with the hydrogel's cation-targeted adsorption mechanisms. Adsorption experiments were complemented by isotherm fitting and kinetic analyses.

RESULTS

The composite hydrogel exhibited the highest affinity for Cu with a maximum adsorption capacity of 325.73 mg/g, followed by Zn and Pb at 284.78 mg/g. The adsorption process conformed to the Langmuir isotherm model and pseudo-second-order kinetics.

DISCUSSION

The composite hydrogel demonstrated significantly superior adsorption performance compared to individual hydrotalcite and alginate hydrogels. This enhanced capability indicates its promising potential for application in heavy metal remediation, particularly for mitigating food safety risks associated with cationic metal contaminants.

摘要

引言

重金属污染带来重大食品安全风险。为解决这一问题，开发了一种由水滑石和海藻酸组成的复合水凝胶，用于吸附食品相关废水中普遍存在的阳离子重金属污染物。

方法

通过水热法合成复合水凝胶，并用钙离子进行化学交联。使用原子吸收光谱法（AAS）评估其对代表性阳离子污染物（铜、锌、铅、镉、锰）的吸附能力。由于铬和六价铬呈阴离子形态，与水凝胶针对阳离子的吸附机制不兼容，因此将其排除。吸附实验辅以等温线拟合和动力学分析。

结果

复合水凝胶对铜的亲和力最高，最大吸附容量为325.73毫克/克，其次是锌和铅，吸附容量为284.78毫克/克。吸附过程符合朗缪尔等温线模型和准二级动力学。

讨论

与单独的水滑石和海藻酸盐水凝胶相比，复合水凝胶表现出明显更优异的吸附性能。这种增强的能力表明其在重金属修复方面具有广阔的应用潜力，特别是在减轻与阳离子金属污染物相关的食品安全风险方面。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/0bcd0d00642e/fchem-13-1649831-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/cec49300e75c/fchem-13-1649831-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/ef8b9c1971b4/fchem-13-1649831-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/9336294f6744/fchem-13-1649831-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/9ed6a5f7bc2b/fchem-13-1649831-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/7333adfe0f7a/fchem-13-1649831-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/ea1349ffc3b9/fchem-13-1649831-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/49f100d5e31c/fchem-13-1649831-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/0bcd0d00642e/fchem-13-1649831-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/cec49300e75c/fchem-13-1649831-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/ef8b9c1971b4/fchem-13-1649831-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/9336294f6744/fchem-13-1649831-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/9ed6a5f7bc2b/fchem-13-1649831-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/7333adfe0f7a/fchem-13-1649831-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/ea1349ffc3b9/fchem-13-1649831-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/49f100d5e31c/fchem-13-1649831-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17e5/12393887/0bcd0d00642e/fchem-13-1649831-g008.jpg

相似文献

1
Engineered LDH-alginate composite hydrogel columns for selective heavy metal removal.用于选择性去除重金属的工程化层状双氢氧化物-海藻酸盐复合水凝胶柱
Front Chem. 2025 Aug 7;13:1649831. doi: 10.3389/fchem.2025.1649831. eCollection 2025.
2
Lotus carbon dots doped sodium alginate hydrogel beads for effective adsorptive removal of Cd and potential application in Pb removal from wastewater.负载莲花碳点的海藻酸钠水凝胶珠用于有效吸附去除镉及在去除废水中铅的潜在应用。
Int J Biol Macromol. 2025 Sep;322(Pt 2):146638. doi: 10.1016/j.ijbiomac.2025.146638. Epub 2025 Aug 6.
3
Development and characterization of Rh-MOF encapsulated on double layer hydrogel of carboxymethyl cellulose/chitosan for enhanced and reusable adsorptive removal of brilliant green dye: Kinetics, isotherms, thermodynamic evaluation and process of optimization via Box-Behnken Design.羧甲基纤维素/壳聚糖双层水凝胶包封的Rh-MOF用于增强和可重复使用地吸附去除亮绿染料的开发与表征：动力学、等温线、热力学评估以及通过Box-Behnken设计进行的优化过程
Int J Biol Macromol. 2025 Sep;321(Pt 4):146611. doi: 10.1016/j.ijbiomac.2025.146611. Epub 2025 Aug 6.
4
The Use of a Composite of Modified Construction Aggregate and Activated Carbon for the Treatment of Groundwater Contaminated with Heavy Metals and Chlorides.使用改性建筑骨料和活性炭的复合材料处理受重金属和氯化物污染的地下水。
Materials (Basel). 2025 Jul 22;18(15):3437. doi: 10.3390/ma18153437.
5
Enhanced and efficient capture of Cd(II) through functionalized metal-organic frameworks embedded in a biopolymer (carboxymethyl cellulose/polyethylenimine): Thermodynamics, kinetics, and optimization via Box-Behnken methodology.通过嵌入生物聚合物（羧甲基纤维素/聚乙烯亚胺）中的功能化金属有机框架增强并高效捕获Cd(II)：热力学、动力学及基于Box-Behnken方法的优化
Int J Biol Macromol. 2025 Jul;318(Pt 1):144903. doi: 10.1016/j.ijbiomac.2025.144903. Epub 2025 Jun 4.
6
Synthesis of nanoscale zero-valent iron by one-pot route and study of its potential in passivating coexistent heavy metal anions and cations in soil.一锅法合成纳米零价铁及其钝化土壤中共存重金属阴阳离子的潜力研究
RSC Adv. 2025 Aug 29;15(38):31005-31018. doi: 10.1039/d5ra02186c.
7
Adsorption Performance of Zn(II)-Based Coordination Polymer (ZnMOF) Reinforced Magnetic Activated Biochar (CmBC-FeO@ZnMOF) Hybrid Composites.基于锌（II）的配位聚合物（ZnMOF）增强磁性生物炭（CmBC-FeO@ZnMOF）杂化复合材料的吸附性能
Water Environ Res. 2025 Jun;97(6):e70113. doi: 10.1002/wer.70113.
8
A novel hybrid approach for predicting and optimizing the adsorption of methyl orange and Cr(VI) removal from aqueous solutions using fungal-cross linked chitosan integrated into graphene oxide as a cost-effective adsorbent.一种新型混合方法，用于预测和优化使用整合到氧化石墨烯中的真菌交联壳聚糖作为经济高效吸附剂从水溶液中吸附甲基橙和去除六价铬。
BMC Chem. 2025 Jul 3;19(1):193. doi: 10.1186/s13065-025-01542-x.
9
Influence of crosslinking metal type on the characteristics and simultaneous adsorption performance of alginate aerogel beads for basic red 18 dye and copper ions.交联金属类型对藻酸盐气凝胶珠对碱性红18染料和铜离子的特性及同步吸附性能的影响。
Int J Biol Macromol. 2025 Jul;318(Pt 4):145271. doi: 10.1016/j.ijbiomac.2025.145271. Epub 2025 Jun 16.
10
Synergistic adsorption of methylene blue using ternary composite of phosphoric acid geopolymer, calcium alginate, and sodium lauryl sulfate.磷酸地质聚合物、海藻酸钙和十二烷基硫酸钠三元复合材料对亚甲基蓝的协同吸附作用
Environ Sci Pollut Res Int. 2024 Jul 2. doi: 10.1007/s11356-024-33573-7.

本文引用的文献

1
Preparation and Heavy Metal Adsorption Performance of 2-Aminopyridine-Modified Sodium Alginate/Polyacrylic Acid Hydrogel.2-氨基吡啶改性海藻酸钠/聚丙烯酸水凝胶的制备及其重金属吸附性能
Gels. 2025 Mar 21;11(4):224. doi: 10.3390/gels11040224.
2
Refining hydrogel-based sorbent design for efficient toxic metal removal using machine learning-Bayesian optimization.利用机器学习-贝叶斯优化改进基于水凝胶的吸附剂设计，以实现高效去除有毒金属。
J Hazard Mater. 2024 Nov 5;479:135688. doi: 10.1016/j.jhazmat.2024.135688. Epub 2024 Aug 30.
3
Advancements and Challenges in Hydrogel Engineering for Regenerative Medicine.
用于再生医学的水凝胶工程的进展与挑战
Gels. 2024 Mar 30;10(4):238. doi: 10.3390/gels10040238.
4
Efficient Removal of Heavy Metals from Aqueous Solution Using Licorice Residue-Based Hydrogel Adsorbent.利用甘草渣基水凝胶吸附剂从水溶液中高效去除重金属
Gels. 2023 Jul 9;9(7):559. doi: 10.3390/gels9070559.
5
Prediction of heavy metals adsorption by hydrochars and identification of critical factors using machine learning algorithms.利用机器学习算法预测水热炭对重金属的吸附及其关键因素的识别。
Bioresour Technol. 2023 Sep;383:129223. doi: 10.1016/j.biortech.2023.129223. Epub 2023 May 25.
6
Biological and green remediation of heavy metal contaminated water and soils: A state-of-the-art review.生物和绿色修复重金属污染的水和土壤：最新综述。
Chemosphere. 2023 Aug;332:138861. doi: 10.1016/j.chemosphere.2023.138861. Epub 2023 May 5.
7
Polysaccharide-based biopolymer hydrogels for heavy metal detection and adsorption.多糖基生物聚合物水凝胶用于重金属检测和吸附。
J Adv Res. 2023 Feb;44:53-70. doi: 10.1016/j.jare.2022.04.005. Epub 2022 Apr 16.
8
Synergistic Fluoride Adsorption by Composite Adsorbents Synthesized From Different Types of Materials-A Review.不同类型材料合成的复合吸附剂对氟化物的协同吸附——综述
Front Chem. 2022 May 4;10:900660. doi: 10.3389/fchem.2022.900660. eCollection 2022.
9
Application of Nanotechnology in Analysis and Removal of Heavy Metals in Food and Water Resources.纳米技术在食品和水资源中重金属分析与去除方面的应用。
Nanomaterials (Basel). 2021 Jul 9;11(7):1792. doi: 10.3390/nano11071792.
10
Preparation of Chitosan/Calcium Alginate/Bentonite Composite Hydrogel and Its Heavy Metal Ions Adsorption Properties.壳聚糖/海藻酸钙/膨润土复合水凝胶的制备及其对重金属离子的吸附性能
Polymers (Basel). 2021 Jun 7;13(11):1891. doi: 10.3390/polym13111891.