Abstract
Abstract The accessibility of good quality water is important for all living creatures in the world. The major requirement in the present era is the treatment of wastewater due to scarcity of water resources. Adsorption, flocculation, filtration etc., are some of the techniques but they are used only for primary treatment of wastewater. It is required to develop techniques with low capital requirement and high efficiency. The recent advanced technology, nanomaterials have attracted the attention for wastewater treatment. Nanoscale properties of nanomaterials such as catalysis, adsorption, reactivity, greater surface area makes them effectively useful for the treatment of wastewater. Various types of nanomaterials are being used for the removal of different contaminants from wastewater. Activated carbon, carbon nanotubes, graphene, titanium oxide, magnesium oxide are some examples of nano-adsorbents which are used for the removal of heavy metals from wastewater. For the removal of organic and inorganic pollutants from water nanocatalyst such as electrocatalyst, photocatalyst have been potentially employed. This review article is focused on the advancements which have been made in the area of wastewater treatment by using nanomaterials.
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