title: Effect of zinc oxide amounts on the properties and antibacterial activities of zeolite/zinc oxide nanocomposite.
abstract: Nanocomposites of zinc oxide loaded on a zeolite (Zeolite/ZnO NCs) were prepared using co-precipitation method. The ratio effect of ZnO wt.% to the Zeolite on the antibacterial activities was investigated. Various techniques were used for the nanocomposite characterization, including UV-vis, FTIR, XRD, EDX, FESEM and TEM. XRD patterns showed that ZnO peak intensity increased while the intensities of Zeolite peaks decreased. TEM images indicated a good distribution of ZnO-NPs onto the Zeolite framework and the cubic structure of the zeolite was maintained. The average particle size of ZnO-nanoparticles loaded on the surface of the Zeolite was in the range of 1-10nm. Moreover, Zeolite/ZnO NCs showed noticeable antibacterial activities against the tested bacteria; Gram- positive and Gram- negative bacteria, under normal light. The efficiency of the antibacterial increased with increasing the wt.% from 3 to 8 of ZnO NPs, and it reached 87% against Escherichia coli E266.
authors: Department of Chemistry, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia; Department of Chemistry, Sana(')a University, Yemen.
authors: Abdullah A
authors: AA
authors: Alswat
authors: Department of Chemistry, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia.
authors: Mansor Bin
authors: MB
authors: Ahmad
authors: Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia. Electronic address: tawfik@kfupm.edu.sa.
authors: Tawfik A
authors: TA
authors: Saleh
authors: Department of Chemistry, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia.
authors: Mohd Zobir Bin
authors: MZB
authors: Hussein
authors: Department of Chemistry, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia.
authors: Nor Azowa
authors: NA
authors: Ibrahim
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D004926:Escherichia coli / Q000254:growth & development*; D006094:Gram-Positive Bacteria / Q000254:growth & development*; D053761:Nanocomposites / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry / Q000494:pharmacology; D015034:Zinc Oxide / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D017641:Zeolites; D015034:Zinc Oxide
keywords: Antibacterial; Nanocomposite; Zinc oxide/zeolite