Investigations of adsorption and photoluminescence properties of encapsulated Al-ZnO nanostructures: Synthesis, morphology and dye degradation studies.

Autor:	Jinendra U; Department of Chemistry, The Oxford College of Engineering, Bommasandra, Bangalore, Karnataka, India., Majani SS; School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, 570 026, Karnataka, India., Bilehal D; Department of Chemistry, Karnatak University, Dharwad, 560 008, Karnataka, India., Nagabhushana BM; Department of Chemistry, MSRIT, Bengaluru, 560 054, Karnataka, India., Nadaf YF; Department of Physics, Maharani Cluster University, Palace Road, Bangalore, Karnataka, India., Iqbal M; Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia., Shivamallu C; Department of Biotechnology and Bioinformatics, School of Life Sciences, JSS Academy of Higher Education and Research, Mysuru, 570 015, Karnataka, India., Kollur SP; School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, 570 026, Karnataka, India.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2024 Jul 10; Vol. 10 (14), pp. e34427. Date of Electronic Publication: 2024 Jul 10 (Print Publication: 2024).
DOI:	10.1016/j.heliyon.2024.e34427
Abstrakt:	This study focuses on the solution combustion approach to examine the nanostructures of undoped and doped ZnO with different concentrations of Al (0.1 % and 0.2 %). Various physical techniques were utilized to characterize the synthesized nanoparticles. X-ray diffraction (XRD) revealed the crystalline materials, while scanning electron microscopy (SEM) with energy-dispersive X-ray (EDX) findings confirmed the products with particle size and the insertion of Al into the ZnO lattice. Fourier-transform infrared spectra (FTIR) confirmed the presence of different functional groups in the obtained material. The results indicate that Al-doped ZnO (Al-ZnO) nanoparticles show promising properties for optoelectronics and photoluminescence. Photoluminescence analysis indicated that an increase in Al3+ (0.2 %) concentration resulted in a decrease in peak intensity and an increase in the full width at half maximum. The band gap was calculated using the Taucs plot. The study also highlights the effectiveness of Zn1-xAlxO nanostructures in degrading organic pollutants, particularly in adsorbing Malachite Green (MG) dye. Among the samples, the 0.2 % Al-doped ZnO exhibited superior dye degradation efficiency due to its enhanced adsorption capacity and smaller particle size, as evidenced by multilayer adsorption capacity and chemisorption during the degradation process. This study provides valuable insights into the potential applications of Al-doped ZnO nanoparticles in various environmental and technological fields, emphasizing their significance in the degradation of organic pollutants. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 Published by Elsevier Ltd.)
Databáze:	MEDLINE
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