Photoluminescence, antibacterial, X-ray/gamma ray absorption, supercapacitor and sensor applications of ZrTiO 4 nanorods.

Autor: S A; Department of Physics, Maharani Lakshmi Ammanni College for Women Autonomous Malleshwaram Bengaluru 560012 Karnataka India.; Department of Physics, East West Institute of Technology Bengaluru 560091 Karnataka India scphysics@gmail.com., Vidya YS; Department of Physics, Lal Bahadur Shastri Government First Grade College RT Nagar Bangalore 560032 Karnataka India vidyays.phy@gmail.com., Manjunatha HC; Department of Physics, Government College for Women Kolar 563101 Karnataka India manjunathhc@rediffmail.com., Prashantha SC; Department of Physics, East West Institute of Technology Bengaluru 560091 Karnataka India scphysics@gmail.com., Kottam N; Department of Chemistry, M S Ramaiah Institute of Technology affiliated to Visvesvaraya Technological University Belguam Bengaluru 560054 Karnataka India., Sridhar KN; Department of Physics, Government First Grade College Kolar 563101 Karnataka India., Damodara Gupta PS; Department of Physics, Government College for Women Kolar 563101 Karnataka India manjunathhc@rediffmail.com., Mahendrakumar C; Department of Biotechnology, Government First Grade College Kolar 563101 Karnataka India.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2023 May 15; Vol. 13 (22), pp. 14782-14796. Date of Electronic Publication: 2023 May 15 (Print Publication: 2023).
DOI: 10.1039/d3ra00908d
Abstrakt: In the present communication, ZrTiO 4 nanoparticles (NPs) are synthesized by the solution combustion method using urea (ZTOU) and oxalyl dihydrazide (ODH) (ZTODH) as fuel and calcined at 700 °C. The synthesized samples were characterized with different techniques. Powder X-ray diffraction studies show the presence of diffraction peaks corresponding to ZrTiO 4 . In addition to these peaks, a few additional peaks corresponding to the monoclinic and cubic phases of ZrO 2 and the rutile phase of TiO 2 are observed. The surface morphology of ZTOU and ZTODH consists of nanorods with different lengths. The TEM and HRTEM images confirm the formation of nanorods along with NPs, and the estimated crystallite size matches well with that of PXRD. The direct energy band gap was calculated using Wood and Tauc's relation and was found to be 2.7 and 3.2 eV for ZTOU and ZTODH respectively. The photoluminescence emission peaks ( λ = 350 nm), CIE and CCT of ZTOU and ZTODH clearly confirm that the present nanophosphor might be a good nanophosphor material for blue or aqua green light emitting diodes. Furthermore, antibacterial activity and a viability test were conducted on two food borne pathogens. The X-ray/gamma ray absorption properties are also studied, which clearly show the ZrTiO 4 might be a good absorbing material. Furthermore, cyclic voltammetry (CV) analysis of ZTOU nanorods shows very good redox peaks compared to that of ZTODH. From the electrochemical impedance spectroscopy (EIS) measurements, the charge-transfer resistances for prepared nanorods ZTOU and ZTODH are found to be 151.6 Ω, and 184.5 Ω respectively. The modified graphite electrode with ZTOU shows good sensing activity for both paracetamol and ascorbic acid, compared to ZTODH.
Competing Interests: There is no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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