Eco-friendly synthesis of titanium dioxide nanoparticles from Cocos nucifera for improved photocatalytic and antimicrobial applications

Discover Nano 2026 Open access

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Authors: Yuvaraj Tamilselvi, Kanagasabapathy Sivasubramanian, Loganathan Lingeshwaran, Palanivel Velmurugan, Anurag Sureshbabu, Vanga Dharma Teja, Kishore Kumar, Jeyanthi Rebecca Livingstone, Anbuselvi Stalin Selvaraj, Devasagaya Daisy, S. Rajkumar
DOI: 10.1186/s11671-025-04426-0
Cited by: 3
References: 50

Abstract

TiO2 nanoparticles were synthesized using Cocos nucifera pollen extract through an eco-friendly green approach and evaluated for their multifunctional properties. XRD confirmed a crystallite size of 17.4 nm, while HRTEM showed particle sizes ranging from 5 to 100 nm. The biogenic TiO2 NPs exhibited strong photocatalytic degradation of methylene blue, achieving 97.8% efficiency under sunlight and 98.5% under UV within 180 min. They also demonstrated significant antibacterial activity against Staphylococcus aureus (23.0 mm) and Escherichia coli (29.5 mm), along with biofilm inhibition rates of 86.57% and 70.34%, respectively. The study highlights the novelty of using Cocos nucifera pollen as a biogenic reducing agent and demonstrates the potential of the synthesized nanoparticles for wastewater treatment and antimicrobial applications.

Fields of Study & Subjects

TiO2 Photocatalysis and Solar Cells Nanoparticles: synthesis and applications Advanced Photocatalysis Techniques

Publication details

Journal / source
Discover Nano
Publisher
Springer Science and Business Media LLC
Volume
21
Issue
1
Pages
4–4
Publication date
6 January 2026
Language
EN