Photocatalytic performance, anti-bacterial activities and 3-chlorophenol sensor fabrication using MnAlO·ZnAlO nanomaterials

• Published in: Nanoscale advances 2021-10, Vol.3 (2), p.5872-5889
• Main Authors: Subhan, Md Abdus, Chandra Saha, Pallab, Hossain, Anwar, Asiri, Abdullah M, Alam, M. M, Al-Mamun, Mohammad, Ghann, William, Uddin, Jamal, Raihan, Topu, Azad, A. K, Rahman, Mohammed M
• Format: Article
• ISSN: 2516-0230
• DOI: 10.1039/d1na00627d

A MnAl 2 O 4 ·ZnAl 2 O 4 nanomaterial was synthesized by co-precipitation and characterized by XRD, SEM, EDS, TEM, AFM, FTIR, PL, CV and EIS. The photocatalytic activity of the nanocomposite against MV dye and its MDR anti-bacterial functions were studied. The nanocomposite shows excellent photocatalytic as well as anti-bacterial activity. A MnAl 2 O 4 ·ZnAl 2 O 4 nanomaterial/Nafion/GCE electrode was fabricated and implemented as the working electrode of a 3-CP sensor. The sensor exhibited good sensitivity, with the lowest detection limit, fast response time, large linear dynamic range (LDR), and long-term stability in the chemical environment. The estimated sensitivity is 70.07 μA mM −1 cm −2 . The LDR, limit of detection (LOD), and limit of quantification (LOQ) are 0.1 nM to 0.01 M, 0.0014 ± 0.0001 nM, and 0.004 nM, respectively. The MnAl 2 O 4 ·ZnAl 2 O 4 nanomaterial/Nafion/GCE is a promising fabricated sensor probe for the selective detection of 3-CP for the environmental safety and healthcare fields on a large scale. The proposed mechanism for the determination of 3-CP by MnAl 2 O 4 ·ZnAl 2 O 4 nanomaterial/Nafion/GCE.