Role of bionanohybrids for pollutant removal in wastewater environment

IF 6.7 Q1 ENVIRONMENTAL SCIENCES Current Opinion in Environmental Science and Health Pub Date : 2023-10-01 DOI:10.1016/j.coesh.2023.100504

Punniyakotti Elumalai , Balakrishnan Muthukumar , Perumal Dhandapani , Obulisamy Parthiba Karthikeyan , Mingzhi Huang

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Abstract

The Water contamination is a global issue; in this regard, we need to explore and develop efficient methods for pollutant removal from the water environment. Nanohybrids (NHs) and bionanohybrids (BNHs) photocatalysts have played a dynamic role in pollutant removal such as organic compounds and inorganic elements, from wastewater environment. Four types of NHs are majorly involved in pollutant removal: carbon–carbon, metal–metal, carbon–metal, and organic molecule-coated. These NHs and BNHs possess multifunctional characteristics and remarkable achievements in wastewater treatment, biomedical, agricultural, and industrial applications. Recently, researchers have developed different types of BNHs and found good achievements in dye (methyl orange, rhodamine B, and methylene blue) and heavy metal (cadmium, copper, chromium, lead, mercury, and nickel) removal from wastewater with an eco-friendly approach. In this review the major BNHs are cellulose, chitosan, gelatin, pectin, and silk proteins involved in the pollutant removal in water environments.

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仿生杂化物在废水环境中去除污染物的作用

水污染是一个全球性问题；在这方面，我们需要探索和开发有效的水环境污染物去除方法。纳米杂化物（NHs）和仿生杂化物（BNHs）光催化剂在去除废水环境中的有机化合物和无机元素等污染物方面发挥了动态作用。四种类型的NHs主要参与污染物去除：碳-碳、金属-金属、碳-金属和有机分子涂层。这些NHs和BNH具有多功能特性，在废水处理、生物医学、农业和工业应用方面取得了显著成就。最近，研究人员开发了不同类型的BNH，并以环保的方法从废水中去除染料（甲基橙、罗丹明B和亚甲基蓝）和重金属（镉、铜、铬、铅、汞和镍），取得了良好的效果。在这篇综述中，主要的BNH是参与水环境中污染物去除的纤维素、壳聚糖、明胶、果胶和丝蛋白。

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