Zanbili Fatemeh, Gozali Balkanloo Peyman, Poursattar Marjani Ahmad
Department of Organic Chemistry, Faculty of Chemistry, 117045 Urmia University , Urmia, Iran.
Rev Environ Health. 2024 Sep 3;40(2):296-318. doi: 10.1515/reveh-2024-0004. Print 2025 Jun 26.
The escalating issue of environmental pollutants necessitates efficient, sustainable, and innovative wastewater treatment technologies. This review comprehensively analyzes the mechanisms and isotherms underlying the adsorption processes of semi-interpenetrating polymer network (semi-IPN) polysaccharide-based hydrogels to remove heavy metal ions and dyes from wastewater. Polysaccharides are extensively utilized in hydrogel synthesis due to their biocompatibility, cost-effectiveness, and non-toxic nature. The synthesis of these hydrogels as semi-IPNs enhances their mechanical and structural robustness and adsorption capacity. This review explores the key parameters affecting adsorption performance, including pH, temperature, contact time, and adsorbent dosage. Findings highlight that semi-IPN polysaccharide-based hydrogels exhibit remarkable adsorption capabilities through electrostatic interactions, ion exchange, and surface complexation. Furthermore, this review highlights the distinct advantages of semi-IPNs over other polymer networks. Semi-IPNs offer improved mechanical stability, higher adsorption efficiencies, and better reusability, making them a promising solution for wastewater treatment. Detailed isotherm models, including Langmuir and Freundlich isotherms, were studied to understand these hydrogels' adsorption behavior and capacity for different pollutants. This study highlights the potential of semi-IPN polysaccharide-based hydrogels as effective adsorbents for heavy metals and dyes and as a promising solution for mitigating environmental pollution. The insights provided herein contribute to developing advanced materials for environmental remediation, aligning with global sustainability goals, and advancing wastewater treatment technology.
环境污染物问题日益严重，因此需要高效、可持续且创新的废水处理技术。本综述全面分析了半互穿聚合物网络（semi-IPN）多糖基水凝胶吸附废水中重金属离子和染料的吸附过程所涉及的机制和等温线。多糖因其生物相容性、成本效益和无毒特性而被广泛用于水凝胶合成。将这些水凝胶合成为半互穿聚合物网络可增强其机械和结构稳定性以及吸附能力。本综述探讨了影响吸附性能的关键参数，包括pH值、温度、接触时间和吸附剂用量。研究结果表明，基于半互穿聚合物网络的多糖基水凝胶通过静电相互作用、离子交换和表面络合表现出卓越的吸附能力。此外，本综述强调了半互穿聚合物网络相对于其他聚合物网络的独特优势。半互穿聚合物网络具有更高的机械稳定性、更高的吸附效率和更好的可重复使用性，使其成为废水处理的一个有前景的解决方案。研究了包括朗缪尔等温线和弗伦德利希等温线在内的详细等温线模型，以了解这些水凝胶对不同污染物的吸附行为和吸附容量。本研究突出了基于半互穿聚合物网络的多糖基水凝胶作为重金属和染料有效吸附剂的潜力，以及作为减轻环境污染的一个有前景的解决方案的潜力。本文提供的见解有助于开发用于环境修复的先进材料，符合全球可持续发展目标，并推动废水处理技术的进步。
