Deshpande Kanchanmala
Department of Chemistry, Faculty of Natural Sciences, Goa University, P.O. Box:403206, Goa. India.
Recent Pat Biotechnol. 2017;11(3):155-170. doi: 10.2174/1872208311666170116145843.
Synthesis and modification of cost-effective sorbents for removing heavy metals from water resources is an area of significance. It had been reported that materials with biological origins, such as agricultural and animal waste, are excellent alternatives to conventional adsorbents due to their higher affinity, capacity and selectivity towards metal ions. These properties of biomaterials help to reduce or detoxify metal ions concentration in contaminated water to acceptable regulatory standards.
Synthesis of novel, efficient, cost effective, eco-friendly biomaterials for heavy metal adsorption from water is still an area of challenge.
In this comprehensive review, acompilation of patents as well as published articles is carried out to outline the properties of different biomaterials based on their precursors along withdetailed description of biomaterial morphology and various surface modification approaches.
A detailed study of the performance of adsorbents and the role of physical and chemical modification in terms of enhancing their potential for metal adsorption from water is compiled here. The factors affecting adsorption behavior i.e., capacity and affinity of e biomaterials is also compiled.
This paper presents a concise review of reported studies on the synthesis and modification of biomaterials, their use for heavy metal removal from waters and future prospects of this technology.
合成和改性具有成本效益的吸附剂以去除水资源中的重金属是一个重要领域。据报道，具有生物来源的材料，如农业和动物废弃物，由于它们对金属离子具有更高的亲和力、容量和选择性，是传统吸附剂的极佳替代品。生物材料的这些特性有助于将受污染水中的金属离子浓度降低或解毒至可接受的监管标准。
合成用于从水中吸附重金属的新型、高效、经济高效且环保的生物材料仍然是一个具有挑战性的领域。
在这篇全面的综述中，对专利以及已发表的文章进行了汇编，以根据不同生物材料的前体概述其特性，并详细描述生物材料的形态以及各种表面改性方法。
这里汇编了对吸附剂性能以及物理和化学改性在增强其从水中吸附金属潜力方面的作用的详细研究。还汇编了影响吸附行为的因素，即生物材料的容量和亲和力。
本文简要综述了已报道的关于生物材料的合成和改性、它们在去除水中重金属方面的应用以及该技术的未来前景的研究。
