Research on Adsorption of Heavy Metal Ions by Polysaccharide Hydrogels DOI
Sen Liu, Yuting Cai, Miao Du

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(41)

Published: Oct. 28, 2024

Abstract In recent years, various industrial and agricultural problems have been highlighted, the pollution of heavy metal ions to water bodies has become a considerable serious phenomenon. Adsorption method is an efficient, low‐cost, easy implement for removing ions, which does not produce secondary pollution, widely used in treatment. Polysaccharides are natural polymers, their hydroxyl, carboxyl, amine groups provide feasibility synthesis hydrogels with structures. The synthesized polysaccharide hydrogel characteristics high adsorption capacity, specific adsorption, nontoxic, so on. this review, kinds different methods were discussed first. Then, mechanism modes reviewed. Finally, effects environmental factors on capacity studied. future research by was proposed.

Language: Английский

Microbial Biopolymers: From Production to Environmental Applications—A Review DOI Creative Commons
Mohit Sharma,

Nihed Tellili,

Imen Kacem

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(12), P. 5081 - 5081

Published: June 11, 2024

Industrial evolution and agricultural expansion, explained by continuing population growth, have rendered enormous problems for the world throughout past few decades, primarily because of waste generation. To reduce environmental impact dependence on fossil fuels, scientists explored replacing synthetic polymers with environmentally friendly sustainable alternatives in many emergent applications. In this regard, microbial biopolymers gained special attention. Many originating from various strains bacteria, fungi, algae been reported their possible applications increased rapidly. This review focuses wide range biopolymers, characteristics, factors influencing production. The present study also describes biopolymers. use these is very attractive as a value-added approach to wastewater treatment. By acting adsorbents, coagulants, flocculants well filters membrane processes, shine promising solutions beyond conventional methods. They can be integrated into stages treatment process, further enhancing efficiency Microbial biopolymer bioremediation soil stabilization are reviewed. Several studies demonstrated strong potential improvement due ability minimize permeability, eliminate heavy metals, stabilize soil, limit erosion. Challenges related scaling up downstream processing its future perspectives applications, discussed.

Language: Английский

Citations

7

Fluorescent cellulose nanofibrils hydrogels for sensitive detection and efficient adsorption of Cu2+ and Cr6+ DOI
Xinran Wang,

Shipeng Luo,

Jing Luo

et al.

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 347, P. 122748 - 122748

Published: Sept. 13, 2024

Language: Английский

Citations

7

Intelligent solar-driven “switch” photothermal hydrogel for clean water harvesting DOI
Wenle Pei,

Zhuangzhuang Xie,

Xiaoliang Pei

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153420 - 153420

Published: June 22, 2024

Language: Английский

Citations

6

Carbonation of waste concrete: An effective and green strategy for enhancing its heavy metals removal from wastewater DOI
Xiaowei Ouyang,

Weiyu Li,

Xiaofeng Li

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 65, P. 105763 - 105763

Published: July 10, 2024

Language: Английский

Citations

4

Advance and Integrated Treatment Methods of Emerging Contaminants DOI

Leila Azaryouh,

Mehdi Mennani,

Amine Miftah

et al.

Environmental science and engineering, Journal Year: 2025, Volume and Issue: unknown, P. 281 - 306

Published: Jan. 1, 2025

Language: Английский

Citations

0

Functionalized nanocomposite biopolymer-based environmental-friendly adsorbents: Design, adsorption mechanism, regeneration, and degradation DOI
Congli Cui, Dong Li, Lijun Wang

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132034 - 132034

Published: Feb. 1, 2025

Language: Английский

Citations

0

Natural polymer‐based hydrogels: Types, functionality, food applications, environmental significance and future perspectives: An updated review DOI Creative Commons
Piyumi Chathurangi Wanniarachchi, Iranga Paranagama, Piyumi Amanda Idangodage

et al.

Food biomacromolecules., Journal Year: 2025, Volume and Issue: unknown

Published: March 8, 2025

Abstract Hydrogels of natural, synthetic and hybrid origin are used in various food applications modern days. Among them, natural polymer‐based hydrogels becoming increasingly popular the industry owing to their structural diversity, biocompatibility, affordability, biodegradability non‐toxicity compared counterparts. Furthermore, product‐associated environmental footprint is minimal. Thus, interest has gravitated toward developing utilising sector. These grouped as polysaccharide‐based, protein‐based composite hydrogels. form edible films, encapsulate control release bioactive flavour compounds, 3D printing fat substitutes, additives stabilisers industry. Due biocompatible nature, they have shown great promise an essential ingredient a range products, including dairy dessert gels, yogurt, confectionery meat products. This review provides comprehensive overview recent (2018–2024), gelation mechanisms, rheology future perspectives, with special emphasis on significance.

Language: Английский

Citations

0

Sustainable and Efficient Wastewater Treatment Using Cellulose-Based Hydrogels: A Review of Heavy Metal, Dye, and Micropollutant Removal Applications DOI Creative Commons

Ziao Zhang,

Yujie Lu,

Shoujian Gao

et al.

Separations, Journal Year: 2025, Volume and Issue: 12(3), P. 72 - 72

Published: March 18, 2025

The rapid pace of global industrialization and population growth has intensified freshwater scarcity water pollution, necessitating urgent solutions. Adsorption technology, favored for its cost-effectiveness, simplicity, scalability, emerged as a promising approach. Hydrogels, particularly cellulose-based hydrogels (CBHs), have gained significant attention green adsorbents due to their biodegradability, non-toxicity, low cost, exceptional adsorption capacity. This paper reviews recent advancements in CBHs sustainable wastewater treatment, focusing on synthesis techniques, performance, mechanisms removing heavy metals, dyes, micropollutants. Updated applications outcomes are also discussed. Despite advantages, face challenges such limited mechanical strength, practical production difficulties, insufficient reuse studies, separation inefficiencies. review addresses these issues explores future prospects implementation. findings provide valuable insights into advancing efficient treatment

Language: Английский

Citations

0

Preparation and Heavy Metal Adsorption Performance of 2-Aminopyridine-Modified Sodium Alginate/Polyacrylic Acid Hydrogel DOI Creative Commons

Tingxiang Wu,

Amatjan Sawut,

Rena Simayi

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(4), P. 224 - 224

Published: March 21, 2025

This study utilized the Schiff base reaction as a chemical bonding method to successfully graft 2-aminopyridine onto oxidized sodium alginate, resulting in formation of modified alginate (OSM). Subsequently, OSM/polyacrylic acid (OSM/PAA) hydrogel was synthesized via thermally initiated free radical polymerization process and evaluated an adsorbent for removal heavy metal ions from wastewater. Comprehensive characterization prepared samples performed using FT-IR, SEM, TGA. The influence temperature, pH, dosage, contact time, ion concentration on adsorption capacity OSM/PAA simulated wastewater thoroughly investigated. Additionally, detailed analysis thermodynamics, kinetics, mechanisms conducted. Experimental results indicated that at 25 °C, pH 5.0, dosage 0.4 g/L, maximum capacities Cu(II), Zn(II), Ni(II) were 367.64 mg/g, 398.4 409.83 respectively. These findings suggest by is spontaneous, heterogeneous with significant potential practical applications treatment.

Language: Английский

Citations

0

Development of sustainable biogenic marine waste-based composite for phosphate ions recovery and subsequent biogas production DOI
Huda M. Alghamdi, Mohamed El-Qelish, Khalid Z. Elwakeel

et al.

Biomass and Bioenergy, Journal Year: 2025, Volume and Issue: 197, P. 107819 - 107819

Published: March 30, 2025

Language: Английский

Citations

0