Enhanced photocatalytic and antimicrobial performance of a multifunctional Cu-loaded nanocomposite under UV light: theoretical and experimental study

M. Abd Elkodous; Ahmed M. El-Khawaga; M. I. A. Abdel Maksoud; Gharieb S. El-Sayyad; Nurhaswani Alias; Hazem Abdelsalam; Medhat A. Ibrahim; Mohamed A. Elsayed; Go Kawamura; Zainovia Lockman; Wai Kian Tan; Atsunori Matsuda

doi:10.1039/D2NR01710E

Enhanced photocatalytic and antimicrobial performance of a multifunctional Cu-loaded nanocomposite under UV light: theoretical and experimental study†

M. Abd Elkodous,^a Ahmed M. El-Khawaga,

^bc M. I. A. Abdel Maksoud,^d Gharieb S. El-Sayyad,*^ef Nurhaswani Alias,^g Hazem Abdelsalam,

^hi Medhat A. Ibrahim,

^jk Mohamed A. Elsayed,^b Go Kawamura,^a Zainovia Lockman,^g Wai Kian Tan

^l and Atsunori Matsuda*^a

Author affiliations

* Corresponding authors

^a Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
E-mail: matsuda@ee.tut.ac.jp

^b Chemical Engineering Department, Military Technical College (MTC), Cairo, Egyptian Armed Forces, Egypt

^c Faculty of Medicine, Galala University, Suez, Egypt

^d Materials Science Lab., Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt

^e Department of Microbiology & Immunology, Faculty of Pharmacy, Galala University, New Galala City, Suez, Egypt

^f Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt

^g School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang, Malaysia

^h School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China

ⁱ Theoretical Physics Department, National Research Centre, El-Buhouth Str., Dokki, Giza, Egypt

^j Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE), Suez Desert Road, El-Sherouk City, Cairo, Egypt

^k Molecular Spectroscopy and Modeling Unit, Spectroscopy Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza, Egypt

^l Institute of Liberal Arts and Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi, Japan

Abstract

Due to modern industrialization and population growth, access to clean water has become a global challenge. In this study, a metal–semiconductor heterojunction was constructed between Cu NPs and the Co_0.5Ni_0.5Fe₂O₄/SiO₂/TiO₂ composite matrix for the photodegradation of potassium permanganate, hexavalent chromium Cr(VI) and p-nitroaniline (pNA) under UV light. In addition, the electronic and adsorption properties after Cu loading were evaluated using density functional theory (DFT) calculations. Moreover, the antimicrobial properties of the prepared samples toward pathogenic bacteria and unicellular fungi were investigated. Photocatalytic measurements show the outstanding efficiency of the Cu-loaded nanocomposite compared to that of bare Cu NPs and the composite matrix. Degradation efficiencies of 44% after 80 min, 100% after 60 min, and 65% after 90 min were obtained against potassium permanganate, Cr(VI), and pNA, respectively. Similarly, the antimicrobial evaluation showed high ZOI, lower MIC, higher protein leakage amount, and cell lysis of nearly all microbes treated with the Cu-loaded nanocomposite.

This article is part of the themed collection: Design and function of materials nanoarchitectonics

Nanoscale

Enhanced photocatalytic and antimicrobial performance of a multifunctional Cu-loaded nanocomposite under UV light: theoretical and experimental study†

Abstract

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Enhanced photocatalytic and antimicrobial performance of a multifunctional Cu-loaded nanocomposite under UV light: theoretical and experimental study

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