ItemArticle

Anticorrosive studies of Chitosan/TiO2/g-C3N4 composite on mild steel in saline and acidic conditions

Title
Anticorrosive studies of Chitosan/TiO2/g-C3N4 composite on mild steel in saline and acidic conditions
Creator
Doctor, Daizy; Varghese, Arun; Sunajadevi, Kalathiparambil Rajendra Pai; Pinheiro, Dephan; Krishna Mohan, Mothi
Description
This work focuses on the synthesis of a nanocomposite coating that enhances the anticorrosive property of the metal. The nanocomposite under study is a synergistic blend of chitosan, titanium dioxide (TiO2), and graphitic carbon nitride (g-C3N4), effectively challenging the corrosion problem faced by various industries. The environment-friendly and natural properties of chitosan, the photocatalytic activity of TiO2 nanoparticles, and the efficient electrical conductivity of g-C3N4 make the composite an ideal material for studying anticorrosion activity. Experimental techniques like XPS, XRD, HR-TEM, FE-SEM, TGA, BET surface area, and FTIR analysis have been employed to characterize the nanocomposite. Weight loss studies indicate the efficacy of the nanocomposite on mild steel in 3.5 % NaCl and 1 M HCl. The corrosion behavior of the nanocomposite is examined by Tafel curves and electrochemical impedance analysis. The results indicate that the inhibition efficiency of chitosan/TiO2/g-C3N4 nanocomposite is 99 % with a charge transfer resistance value of 152.43 ?, which is more effective in the corrosion inhibition of mild steel than chitosan, TiO2, and g-C3N4 when taken separately. The anticorrosive coating prepared using this composite can be applied on different surfaces under various environmental conditions to reduce corrosion. 2025 Elsevier B.V.
Source
Surfaces and Interfaces;Volume;64;Issue;;Article No.;106464;
Date
01-01-2025
Publisher
Elsevier B.V.
Subject
Anticorrosion; Anticorrosive coatings; Chitosan composites; Chitosan/TiO2/g-C3N4
Coverage
Doctor D., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India; Varghese A., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India; Sunajadevi K.R.P., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India; Pinheiro D., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India; Krishna Mohan M., Department of Sciences and Humanities, Christ University, Karnataka, Bangalore, 560074, India
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 24680230;
Format
online
Language
English
Type
Article

Citation

Doctor, Daizy; Varghese, Arun; Sunajadevi, Kalathiparambil Rajendra Pai; Pinheiro, Dephan; Krishna Mohan, Mothi, “Anticorrosive studies of Chitosan/TiO2/g-C3N4 composite on mild steel in saline and acidic conditions,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22463.

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