High aspect ratio TiO 2 –Mn 3 O 4 heterostructure: proficient nanorods for pathogen inhibition and supercapacitor application

• Published in: Materials science and technology Vol. 39; no. 14; pp. 1687 - 1696
• Main Authors: Hassan, M. Shamshi, Amna, Touseef, Alqarni, Laila S., Alqahtani, Hussain S., Alnaam, Yaser A., Almusabi, Saleh, Alzharani, Ahmed A.
• Format: Journal Article
• Language: English
• Published: 01.09.2023
• ISSN: 0267-0836; 1743-2847
• DOI: 10.1080/02670836.2023.2180598

Supercapacitors are in great demand owing to necessity of clean and sustainable energy. Alternately, waterborne microbial infections are prime cause of diseases. So, there is demand for synthesis of novel materials with multifunctional adaptability. Herein, heterostructured TiO 2 –Mn 3 O 4 composite nanorods were synthesised by two-step methods. In first step, TiO 2 nanorods were prepared using electrospinning and by hydrothermal method Mn 3 O 4 nanoparticles were attached to TiO 2 surface. The composite heterostructure was described using sophisticated procedures such as X-ray diffraction, Fourier transforms infrared spectroscopy, Scanning electron and Transmission electron microscopy. Antimicrobial studies were probed against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus pathogens. The results demonstrated that TiO 2 –Mn 3 O 4 composite has more heightened antimicrobial activity than pristine TiO 2 . Additionally, the synthesised TiO 2 –Mn 3 O 4 composite was implied as an electrode for supercapacitors. The definite capacitance of TiO 2 –Mn 3 O 4 nanocomposite calculated at a potential scan rate of 5 mV/s was as amplified as 470 Fg −1 .