Femiana Gapsari, Shveta Sharma, Saprizal Hadisaputra, Chin Wei Lai, Abdul M. Sulaiman, Djarot B. Darmadi, Ashish Kumar
The development of eco-friendly corrosion inhibitors is critical in addressing the environmental concerns associated with synthetic coatings. Corrosion in carbon steel, particularly in acidic environments, remains a significant challenge, as traditional coatings often lack durability and sustainability. This study explores the use of bio-based nanocomposite coatings made from amylase-chitosan (AS-CIT), cellulose nanocrystals (CNC), and Zinc oxide (ZnO) nanoparticles. Electrochemical testing, quantum chemical analysis, and Monte Carlo simulations were employed to evaluate the coating's performance. Results indicate that incorporating 0.1 g of ZnO into the nanocomposite achieved a maximum inhibition efficiency of 95.31 %, with strong surface adhesion and enhanced protection against corrosive ions. Additionally, theoretical investigations revealed improved electron donor-acceptor interactions, contributing to the formation of a stable passivation layer. Surface morphological investigations also proved the effectiveness of the coating. Consequently, this bio-based nanocomposite proved to be an effective anticorrosive product. This research offers a novel, sustainable solution for corrosion protection, utilizing agricultural residues while maintaining high performance. © 2025 Elsevier Ltd
Department of Mechanical Engineering, Faculty of Engineering, Brawijaya University, MT Haryono 167, Malang, 65145, Indonesia; Department of Chemistry, Government College Una, affiliated to Himachal Pradesh University, 174303, India; Chemistry Education Division, University of Mataram, Jalan Majapahit No 62, Mataram, 83125, Indonesia; Nanotechnology and Catalysis Research Centre, Institute for Advanced Studies, Universiti Malaya, Level 3, Block A, Kuala Lumpur, 50603, Malaysia; Nalanda College of Engineering, Bihar Engineering University, Science, Technology and Technical Education Department, Government of Bihar, 803108, India
