Reseach scholar (Reg. No: 18213102132001), Department of Physics, Annai Velankanni College, Tholayavattam, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, 627012, Tamilnadu, India.
Department of Physics, Sree Devi Kumari Women's College, Kuzhithurai, 629163, Tamilnadu, India.
Environ Res. 2022 Mar;204(Pt A):111917. doi: 10.1016/j.envres.2021.111917. Epub 2021 Aug 25.
In this paper, Magnesium Zinc Ferrite (MZF) nanoparticles (MgZnFeO, where x = 0.2, 0.4 and 0.6) are successfully fabricated by combustion process. The prepared nanoparticles are characterized through XRD, FTIR, UV, SEM, EDS and TEM. It has been confirmed that the samples produced cubic spinel structure with crystal size in the range of 13-15 nm. From the ultraviolet spectrum, the optical band gap is calculated which ranges from 5.6 to 4.6 eV. TEM micrographs confirm the nanocrystalline nature of combustion derived ferrite nanoparticles with average particle diameter of 7-28 nm. Antibacterial studies confirmed that the nanoparticles are toxic to Pseudomonas aeruginosa consists of greatest zone of inhibition of 25 mm. The antibacterial and photocatalytic studies exhibited improved activity which is strongly influenced by the zinc doping. Photocatalytic degradation study reveal that the prepared nanoparticles function as perfect catalyst for degradation of Methylene Blue (MB) dye and Textile Dyeing Waste Water (TDWW) under UV light, thus revealing their potential usage on organic pollutants.
本文采用燃烧法成功制备了镁锌铁氧体（MZF）纳米粒子（MgZnFeO，其中 x = 0.2、0.4 和 0.6）。通过 XRD、FTIR、UV、SEM、EDS 和 TEM 对所制备的纳米粒子进行了表征。已经证实，所生成的样品具有立方尖晶石结构，晶体尺寸在 13-15nm 范围内。从紫外光谱可以计算出光学带隙，其范围在 5.6 到 4.6eV 之间。TEM 显微照片证实了燃烧法合成的铁氧体纳米粒子具有纳米晶特性，平均粒径为 7-28nm。抗菌研究证实，纳米粒子对铜绿假单胞菌具有毒性，其抑菌圈最大为 25mm。抗菌和光催化研究表明，锌掺杂强烈影响了其活性。光催化降解研究表明，所制备的纳米粒子在紫外光下可作为亚甲基蓝（MB）染料和纺织废水（TDWW）的理想催化剂，从而显示出它们在有机污染物方面的潜在用途。
