Photodecontamination of Vat Green 1 and Dianix Blue dyes by MWCNTs/x%TiO2 nanocomposites synthesized using evaporation method | ||
| Al-Azhar Bulletin of Science | ||
| Article 4, Volume 2019, Issue 6, June 2019, Pages 35-45 PDF (1.17 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/absb.2019.13849.1014 | ||
| Authors | ||
| badr awad elsayed* 1; walied mohamed2; hoda galal2; hassan abdelbary3; mahmoud Ahmed3 | ||
| 1Department of Chemistry, Faculty of Science, Al-Azhar University, Egypt | ||
| 2Inorganic Chemistry Department – National Research Centre- Cairo, P.O. (12622) Egypt | ||
| 3Physical Chemistry Department – Al Azhar University- Cairo, P.O. (11884) Egypt | ||
| Abstract | ||
| Study of the photocatalytic activity of multi-walled carbon nanotubes/titanium dioxide nanocomposites MWCNTs/x%TiO2 with different weight ratios of TiO2 (x = 3, 6 and 10%) synthesized using a simple modified evaporation method in decontamination of two local textile dyes (Vat Green 1 and Dianix Blue Dyes) as an industrial organic pollutants commonly used in dyeing factories was reported. The structure of the synthesized MWCNTs and MWCNTs/x%TiO2 nanocomposites with different weight ratios photocatalysts were characterized using XRD, SEM, diffused reflectance UV-Vis spectroscopic technique and N2 adsorption-desorption. Also optical band gap was estimated by Kubelka-Munk equation for MWCNTs and MWCNTs/x%TiO2 nanocomposites giving rise values 3.51, 2.89, 2.80, 2.69 eV respectively. The photodegradation of Vat Green 1 and Dianix Blue Dyes dyes in presence of MWCNTs and MWCNTs/x%TiO2 nanocomposites after complete degradation were measured using chemical oxygen demand processes and the suggested possible mechanism of the photodegradation processes of Vat Green 1 and Dianix Blue Dyes was studied. | ||
| Keywords | ||
| MWCNTs/%TiO2 Nanocomposites; evaporation method; photodegradation process; Vat Green 1 Dye and Dianix Blue Dye | ||
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