Environmental Engineering Reference
In-Depth Information
2
Novel Carbon-Based Nanoadsorbents for
Removal of Synthetic Textile Dyes from
Wa s t e w a t e r s
Shamik Chowdhury 1 , Rajasekhar Balasubramanian 1 and Papita Das* ,2
1 Department of Civil and Environmental Engineering, National University of
Singapore, Singapore
2 Department of Chemical Engineering, Jadavpur University, Kolkata,
West Bengal, India
Abstract
Adsorption technology is widely recognized as one of the most powerful methods
of decolorizing textile effluents. However, the development of efficient inexpensive
adsorbent materials remains an ongoing challenge. Nanostructured carbon mate-
rials such as carbon nanotubes and graphene are currently attracting immense
interest as a promising new class of adsorbent because of their large surface area
and exceptional physicochemical properties. This chapter (a) presents a compre-
hensive update of the latest developments in the use of carbon-based nanoad-
sorbents for removal of colorants from dye effluents, (b) briefly discusses their
characteristics, advantages and limitations, and (c) identifies future research chal-
lenges and opportunities in this exciting and emerging research field.
Keywords: Adsorption, carbon nanomaterials, carbon nanotubes, dyes,
graphene, textile effluents
Acronyms
AFM: Atomic force microscopy
FTIR: Fourier transform infrared spectroscopy
SEM: Scanning electron microscopy
 
 
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