Nanomaterials for Remediation of Environmental Pollutants

Abstract

Today, environmental contamination is a big concern for both developing and developed countries. The primary sources of contamination of land, water, and air are extensive industrialization and intense agricultural activities. Various traditional methods are available for the treatment of different pollutants in the environment, but all have some limitations. Due to this, an alternative method is required which is effective and less toxic and provides better outcomes. Nanomaterials have attracted a lot of interest in terms of environmental remediation. Because of their huge surface area and related high reactivity, nanomaterials perform better in environmental clean-up than other conventional approaches. They can be modified for specific uses to provide novel features. Due to the large surface-area-to-volume ratio and the presence of a larger number of reactive sites, nanoscale materials can be extremely reactive. These characteristics allow for higher interaction with contaminants, leading to a quick reduction of contaminant concentration. In the present review, an overview of different nanomaterials that are potential in the remediation of environmental pollutants has been discussed.

Green Synthesized Calcium Oxide Nanoparticles (CaO NPs) Using Leaves Aqueous Extract of Moringa oleifera and Evaluation of Their Antibacterial Activities

“…Chemical precipitation, hydrothermal, microemulsion, sol-gel, gas phase, microwave synthesis, and electrochemical methods have been described for CaO NPs synthesized and for other nanomaterials such as NiO, FeO, ZnO, Ag, and Au. Green method is significant for cost-effective, harmless, and eco-friendly than any other methods like chemical and physical [6,7]. According to the literature, some of the phytoremediation notions found in the plant extract may be related to nanomaterial production's chemical mechanism [8,9].…”

“…According to the literature, some of the phytoremediation notions found in the plant extract may be related to nanomaterial production's chemical mechanism [8,9]. Metal/metal oxide nanoparticles (NPs) are considered the best way for future generations to use everywhere within clinical care, consumer items, and other industrial applications [6,10]. The adsorption of CO 2 , biomedical applications, gas sensing, and photocatalytic activity of CaO NPs have also gotten much attention [11].…”

Nanomaterials: A Potential Hope for Life Sciences from Bench to Bedside

“…These days, nanotechnology is centred around end of impediments of actual techniques considering infection identification to limit expenses and tedious. Moreover, the implantation of nanomaterials for the development of biosensors brought about expanding of effectiveness also, responsiveness of these frameworks [11].…”

Biologically Derived Gold Nanoparticles and Their Applications

“…It is about the biofabrication of nano-objects or bifunctional macromolecules that may be utilized to produce or modify nano-objects [ 5 ]. Nanoparticles are metallic units that come in a variety of forms, including spherical, triangular, and rod shaped [ 6 ]. Nanoparticles have distinct features (chemical, physical, optical, and so on) as compared to bulk material [ 7 ].…”