ZnO Nanoparticles Synthesized by Precipitation Method for Solar-Driven Photodegradation of Methylene Blue Dye and Its Potential as an Anticancer Agent

被引:0
作者
Paras Lad
Vidhi Pathak
Anjali B. Thakkar
Parth Thakor
M. P. Deshpande
Swati Pandya
机构
[1] Sardar Patel University,Department of Physics
[2] Sardar Patel University,P. G. Department of Applied and Interdisciplinary Sciences (IICISST)
[3] Sardar Patel University,P. G. Department of Biosciences
[4] Charotar University of Science and Technology,B. D. Patel Institute of Paramedical Sciences
来源
Brazilian Journal of Physics | 2023年 / 53卷
关键词
ZnO nanoparticles; Oxygen vacancies; Reactive oxygen species; Photocatalysis; Anticancer activity;
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摘要
This work presents the study on the synthesis of ZnO nanoparticles (NPs) and their photocatalytic and anticancer activity. ZnO NPs were synthesized by a simple precipitation method in the presence of anionic surfactant sodium dodecyl sulphate (SDS). Two different zinc precursors were used, namely, zinc acetate dihydrate and zinc nitrate hexahydrate, and sodium hydroxide was used as a precipitating agent. The synthesized samples were characterized by various techniques for invesgating their structural, optical, and morphological properties. Identical wurtzite hexagonal structure was confirmed for the samples from XRD pattern and the Raman spectroscopy. As determined by the HR-TEM analysis, the samples’ typical particle size is in the nanoscale. The optical band gap of ZnO NPs, as estimated from UV–VIS absorption spectra, is 2.607 eV for acetate precursor and 2.915 eV for nitrate precursor. The defect concentration in the samples has been probed using PL analysis. The photocatalytic activity of synthesized NPs was studied for organic dye (methylene blue — MB) in an aqueous medium and was compared to that of commercial photocatalyst TiO2 NPs. The potential of synthesized NPs as an anticancer agent was also investigated.
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