Affiliations 

  • 1 Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia. Electronic address: puisankhoo@utm.my
  • 2 Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia; Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia; Institute of Tropical Forest and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Centre of Excellence for Biomass Utilization, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia. Electronic address: ahmadilyas@utm.my
  • 3 Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia. Electronic address: alifaiman@graduate.utm.my
  • 4 Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia. Electronic address: jauwei@graduate.utm.my
  • 5 Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia. Electronic address: emad2001@graduate.utm.my
  • 6 Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia. Electronic address: nurulanissyafiqa@graduate.utm.my
  • 7 Institute of Tropical Forest and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Research Centre for Advanced Engineering Materials and Composites (AEMC), Department of Mechanical and Manufacturing Engineering, University Putra Malaysia (UPM), 43400 UPM Serdang, Selangor, Malaysia. Electronic address: zuhri@upm.edu.my
  • 8 Laboratory of Nanoscience and Technology, Department of Mechanical Engineering, Andalas University, Padang 25163, Indonesia; Research Collaboration Center for Nanocellulose, BRIN-Andalas University, Padang 25163, Indonesia. Electronic address: habral@yahoo.com
  • 9 Department of Mechanical Engineering, Faculty of Engineering, University of Mataram, West Nusa Tenggara 83125, Indonesia. Electronic address: n.herlinasari@unram.ac.id
  • 10 Department of Agricultural and Computer Engineering, Politeknik Pertanian Negeri Payakumbuh, Limapuluh Kota, West Sumatra 26271, Indonesia. Electronic address: edi.syafri@politanipyk.ac.id
  • 11 Research Center for Biomass and Bioproducts, National Research and Innovation Agency (BRIN), Cibinong, Bogor 16911, Indonesia. Electronic address: melbi.mahardika@brin.go.id
Int J Biol Macromol, 2024 Aug 26;278(Pt 4):135088.
PMID: 39197608 DOI: 10.1016/j.ijbiomac.2024.135088

Abstract

Water contamination poses a significant challenge to environmental and public health, necessitating sustainable wastewater treatment solutions. Adsorption is one of the most widely used techniques for purifying water, as it effectively removes contaminants by transferring them from the liquid phase to a solid surface. Bio-based hydrogel adsorbents are gaining popularity in wastewater treatment due to their versatility in fabrication and modification methods, which include blending, grafting, and crosslinking. Owning to their unique structure and large surface area, modified hydrogels containing reactive groups like amino, hydroxyl, and carboxyl, or functionalized hydrogels with inorganic nanoparticles particularly graphene nanomaterials, have demonstrated promising adsorption capabilities for both inorganic and organic contaminants. Bio-based hydrogels have excellent physicochemical properties and are non-toxic, environmentally friendly, and biodegradable, making them extremely effective at removing contaminants like heavy metal ions, dyes, pharmaceutical pollutants, and organic micropollutants. The versatility of hydrogels allows for various forms to be used, such as films, beads, and nanocomposites, providing flexibility in handling different contaminants like dyes, radionuclides, and heavy metals. Additionally, researchers also have shown the potential for recycling and regenerating post-treatment hydrogels. This approach not only addresses the challenges of wastewater treatment but also offers sustainable and effective solutions for mitigating water pollution.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.