Shahzadi Faiza, Sun Xiao-Feng, Sheraz Muhammad
School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China.
Shenzhen Research Institute of Northwestern Polytechnical University, Shenzhen 518057, China.
Materials (Basel). 2025 Sep 12;18(18):4284. doi: 10.3390/ma18184284.
Clean water and uncontaminated soil are fundamental for sustaining life on Earth and are essential for assuring human health, and the use of sustainable adsorption materials has emerged as an effective strategy to reduce the volume of effluents released into the environment. Cellulose-bentonite composites have shown significant promise in water purification due to their high adsorption capacity, structural stability, and eco-friendly nature, making them an effective material for the removal of a wide range of pollutants from contaminated water. The most commonly employed methods of fabrication of cellulose-bentonite composites include solution casting, in situ polymerization, and electrospinning. Wastewater typically contains a variety of toxic contaminants, including synthetic dyes such as Congo red and methylene blue, heavy metals such as Cu, Pb, Hg, Ni, pesticides, and oils. Cellulose-bentonite composites offer an economical and efficient solution for the removal of these pollutants, owing to their synergistic properties-especially when compared to other adsorbents such as activated carbon, nanographene oxide, and metal-organic frameworks (MOFs). However, a systematic evaluation of their fabrication strategies, adsorption mechanisms, and application-related studies remains lacking. Also, there is an urgent need for a comprehensive review that consolidates recent findings on the removal of environmental contaminants and highlights both individual and combined adsorption efficiencies. Therefore, this work focuses on cellulose-bentonite composites as highly promising materials for developing sustainable, high-performance adsorbents tailored for advanced water treatment technologies.
清洁的水和未受污染的土壤是维持地球生命的基础，对于保障人类健康至关重要，而使用可持续吸附材料已成为减少排放到环境中的废水体积的有效策略。纤维素 - 膨润土复合材料因其高吸附容量、结构稳定性和环保特性，在水净化方面显示出巨大潜力，使其成为从受污染水中去除多种污染物的有效材料。制备纤维素 - 膨润土复合材料最常用的方法包括溶液浇铸、原位聚合和静电纺丝。废水通常含有多种有毒污染物，包括刚果红和亚甲基蓝等合成染料、铜、铅、汞、镍等重金属、农药和油类。纤维素 - 膨润土复合材料由于其协同性能，为去除这些污染物提供了一种经济高效的解决方案，特别是与活性炭、纳米氧化石墨烯和金属有机框架（MOF）等其他吸附剂相比。然而，目前仍缺乏对其制备策略、吸附机制及相关应用研究的系统评估。此外，迫切需要一篇全面的综述，整合近期关于去除环境污染物的研究成果，并突出个体和联合吸附效率。因此，这项工作聚焦于纤维素 - 膨润土复合材料，将其作为开发适用于先进水处理技术的可持续、高性能吸附剂的极具潜力的材料。
