The influence of calcination temperature on structural and antimicrobial characteristics of zinc oxide nanoparticles synthesized by Sol-Gel method

被引：156

作者：

Ismail, A. M. ^{[1
]}

Menazea, A. A. ^{[1
]}

Kabary, Hoda A. ^{[2
]}

El-Sherbiny, A. E. ^{[3
]}

Samy, A. ^{[4
]}

机构：

[1] Natl Res Ctr, Dept Spect, Giza 12622, Egypt

[2] Natl Res Ctr, Dept Agr Microbiol, Giza 12622, Egypt

[3] Cairo Univ, Fac Agr, Dept Anim Prod, Giza 12613, Egypt

[4] Natl Res Ctr, Dept Anim Prod, Giza 12622, Egypt

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2019年 / 1196卷

关键词：

Nanoparticles; Zinc oxide; Calcination temperatures; Sol-gel method; HRTEM; HRSEM; Antimicrobial activity; ANTIBACTERIAL;

D O I：

10.1016/j.molstruc.2019.06.084

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence of different calcination temperatures on the molecular structure, optical, morphological and antimicrobial activity were investigated for Zinc Oxide nanoparticles (ZnO NPs) synthesized using green sol-gel method. The prepared ZnO NPs are calcined at 70 degrees C, 300 degrees C, 400 degrees C and 800 degrees C. The effect of different calcinations temperature on the characterization of the prepared samples were studied using X-ray Diffraction (XRD), High Resolution Transmission Electron Microscope (HRTEM), High Resolution Scanning Electron Microscope (HRSEM), Fourier Transform Infrared (FT-IR), and Ultraviolet-Visible Spectroscopy (UV-Vis). In addition, the potential antimicrobial activity of ZnO NPs were investigated against four different pathogenic bacterial strains: two strain of gram negative bacteria (Pseudomonas Aeruginosa and Klebsiella Pneumonia) and two strain of gram positive bacteria (Bacillus subtilis and Staphylococcus Aureus). The results showed that XRD, UV-Visible and FT-IR confirmed the presence of ZnO nanoparticles. HRTEM and HRSEM reveal that as the temperature increase the size of prepared sample increased and the agglomeration increases. The best size of rod shape ZnO NPs found at 300 and 400 degrees C. Zinc oxide NPs prepared at 300 degrees C calcination temperature have the superior antibacterial effect on the gram positive and gram-negative pathogenic bacteria. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：332 / 337

页数：6

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