Influence of various transition metals incorporated into tellurium used as antimicrobial agent and textile dye degrader
- PDF / 3,168,830 Bytes
- 14 Pages / 595.276 x 790.866 pts Page_size
- 32 Downloads / 156 Views
ORIGINAL ARTICLE
Influence of various transition metals incorporated into tellurium used as antimicrobial agent and textile dye degrader S. Altaf1 · H. Ijaz1 · J. Haider2 · M. Naz3 · M. Aqeel4 · A. Ul‑Hamid5 · M. Ikram6 · S. Zulfiqar1 · S. A. Ditta7 · A. Shahbaz8 · M. Ikram4 Received: 8 June 2020 / Accepted: 20 August 2020 © King Abdulaziz City for Science and Technology 2020
Abstract Textile dye industry is known to release large amounts of undesirable effluents into industrial wastewater resulting in severe contamination. In this study, novel nanostructured materials were synthesized to treat such polluted water. Transition metals (e.g., vanadium—V, niobium—Nb, and tantalum—Ta) were incorporated individually into tellurium (Te) by adopting the solid-state technique. The compounds were synthesized with fixed dopant-to-host stoichiometric ratios (V:Te, Nb:Te, Ta:Te) while various characterization techniques were used to compare the characteristics of the synthesized products. Specifically, dye aqueous solution degraded with N aBH4 in the presence of tellurites of transition metal oxides acting as catalyst was studied. XRD analysis confirmed the formation of orthorhombic phase compounds in V and Ta and monoclinic compounds within Nb. Full-width at half-maximum (FWHM) data were extracted from the most intense peak in the XRD spectrum to measure the crystallite size using the Debye–Scherrer method. FESEM was used to investigate the surface morphology of the prepared compounds, which showed agglomerated particles that possessed an irregular shape. HR-TEM was employed to gain a detailed insight into the material’s crystal structure. Optical properties, functional group and chemical composition were recorded using UV–Vis, FTIR spectroscopy and EDS analysis, respectively. Raman spectroscopy was carried out to confirm the stretching vibrations and modes of the synthesized products. Thermal stability of the compounds was confirmed at high temperature with DSC/TGA. Moreover, the antimicrobial activity of these binary systems was tested against Escherichia coli (gram-ive) and Staphylococcus aureus (gram + ive) bacterial strains. It was observed that bactericidal potential was the highest at maximum concentrations of the dopant. Keywords Compound · Solid state · Catalytic · Optical · Thermal · Antibacterial activity
E-mail: [email protected] * A. Ul‑Hamid * M. Ikram [email protected]
M. Ikram [email protected]; [email protected]
4
Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Punjab 54000, Pakistan
5
Center for Engineering Research, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Department of Chemistry, University of Engineering and Technology, Lahore 54000, Pakistan
6
Institute of Chemical Engineering and Technology (ICET), University of the Punjab, Lahore 54000, Pakistan
2
Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
Data Loading...
