2019
DOI: 10.1007/s42452-019-1279-5
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Photocatalytic degradation of methylene blue using ZnO and 2%Fe–ZnO semiconductor nanomaterials synthesized by sol–gel method: a comparative study

Abstract: ZnO and 2%Fe-ZnO nanomaterials were prepared by using a low-cost sol-gel method. The synthesized nanomaterials were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDX). The XRD and SEM studies reveal that the synthesized nanomaterials have a hexagonal wurtzite structure with average crystalline size ~ 22 to 23 nm. EDX analysis confirmed the composition and purity of synthesized nanomaterial. The photocatalytic activity of synthesized nanom… Show more

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Cited by 198 publications
(65 citation statements)
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“…, (112), (201) planes were for the synthesized ZnO nanoparticles which is similar to other finding [39].…”
Section: Ray Diffraction Characterizationsupporting
confidence: 89%
See 1 more Smart Citation
“…, (112), (201) planes were for the synthesized ZnO nanoparticles which is similar to other finding [39].…”
Section: Ray Diffraction Characterizationsupporting
confidence: 89%
“…9) [53]. The radicals originate from the oxidation of absorbed water or absorbed OH − and the presence of oxygen prevents the re-combination of electron-hole pairs which are generated by light of suitable energy absorbed by the ZnO nanoaparticles [39].The plenty of radicals produced by the absorbing more electron by surface oxygen enhances the discoloration and degradation of methylene blue by mineralization of the various intermediates…”
Section: Photocatalytic Activitymentioning
confidence: 99%
“…Generally, the degradation of MB solution by ZnO particles could be explained by the mechanism below [16,17,26]. When ZnO photocatalyst is irradiated by light with an energy higher or equal to the bandgap, an electron in the valence band (ecb -) will be excited to the conduction band and leaving a generation of a hole in the valence band (hvb + ) on the surface of ZnO particles as shown in (Eq.…”
Section: Photocatalytic Degradation Of Mb Dyementioning
confidence: 99%
“…Synthetic dyes containing organic compounds have been frequently used in the textiles, paper, printing, food, and cosmetics industries to make their products. They are difficult to decompose and may cause environmental problems [1]. Methylene blue (MB) dye is one of the liquid wastes that are most commonly found.…”
Section: Introductionmentioning
confidence: 99%