Multilayer Self-Assembly of TiO2 Nanoparticles and Polyaniline-Grafted-Chitosan Copolymer (CPANI) for Photocatalysis

Mahanta, Debajyoti ; Manna, Uttam ; Madras, Giridhar ; Patil, Satish (2011) Multilayer Self-Assembly of TiO2 Nanoparticles and Polyaniline-Grafted-Chitosan Copolymer (CPANI) for Photocatalysis ACS Applied Materials & Interfaces, 3 (1). pp. 84-92. ISSN 1944-8244

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Official URL: http://doi.org/10.1021/am1009265

Related URL: http://dx.doi.org/10.1021/am1009265

Abstract

A photocatalytic thin film of TiO2 nanoparticles and polyaniline-grafted-chitosan (CPANI) was fabricated by layer-by-layer (LbL) approach. The growth of the self-assembly of polymer nanocomposite was monitored by UV−vis spectroscopy and the thin film morphology was analyzed from scanning electron microscopy (SEM). Poly(styrene sulfonate) (PSS) was used as a bridging layer between TiO2 nanoparticles and CPANI. Incorporation of CPANI within the LbL self-assembly of polymer nanocomposites enhanced the dye degradation ability of the thin film. These results indicate that the presence of CPANI improves the adsorption of dye in the self-assembly. The effect of surface area and the amount of catalyst was also examined. The reusability of the thin films for dye degradation study ensures the stability of the self-assembly.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:120594
Deposited On:02 Jul 2021 05:51
Last Modified:02 Jul 2021 05:51

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