Functionally Active Nanomaterials for Environmental Remediation

Adhikari, S and Eswar, NKR and Mishra, AK and Sarkar, D and Madras, G (2018) Functionally Active Nanomaterials for Environmental Remediation. [Book Chapter]

PDF nan_env_sci_1-2_293-314_2018.pdf - Published Version Restricted to Registered users only Download (4MB) | Request a copy

Abstract

This chapter presents the physicochemical properties of the functional nanomaterials and their problem-solving capacities in terms of both quantity and quality. Physicochemical methods such as adsorption, membrane separations, and electrochemical methods can remove pollutants from water systems. Adsorbents based on functional nanomaterials such as nanosized metal oxides, nanocomposites, graphene, carbon nanotubes, and noble nanometals have high surface area with reactive sites, impart fast kinetics, and can be tailored to have specific affinity toward targeted contaminants. The performance of these nanoadsorbents is observed to be several magnitudes higher than the conventional adsorbents. The membrane separation process enables water reclamation from unconventional sources such as municipal wastewater. Advanced oxidation processes can be categorized into photochemical and nonphotochemical processes. The photochemical process is also known as "photocatalysis" that removes trace contaminants and microbial pathogens from water. Carbon nanotubes (CNTs) are carbonaceous nanomaterials having unique physicochemical properties due to their one-dimensional structure.

Item Type:	Book Chapter
Publication:	Nanotechnology in Environmental Science
Publisher:	Wiley-VCH Verlag
Additional Information:	The copyright for this article belongs to the Wiley-VCH Verlag GmbH & Co. KGaA.
Keywords:	Carbon nanotubes; Separation; Wastewater reclamation; Water pollution, Advanced Oxidation Processes; ELectrochemical methods; Membrane separation; Municipal wastewaters; Photochemical process; Physicochemical methods, Physicochemical properties
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	14 Aug 2022 05:07
Last Modified:	14 Aug 2022 05:07
URI:	https://eprints.iisc.ac.in/id/eprint/75671

Actions (login required)

View Item