Photodecontamination of Vat Green 1 and Dianix Blue dyes by MWCNTs/x%TiO2 nanocomposites synthesized using evaporation method

Authors

badr elsayed, Department of Chemistry, Faculty of Science, Al-Azhar University, EgyptFollow
walied mohamed, Inorganic Chemistry Department – National Research Centre- Cairo, P.O. (12622) EgyptFollow
hoda galal, Inorganic Chemistry Department – National Research Centre- Cairo, P.O. (12622) EgyptFollow
hassan abdelbary, Physical Chemistry Department – Al Azhar University- Cairo, P.O. (11884) EgyptFollow
mahmoud Ahmed, Physical Chemistry Department – Al Azhar University- Cairo, P.O. (11884) EgyptFollow

Corresponding Author

elsayed, badr

Document Type

Original Article

Subject Areas

Chemistry

Keywords

MWCNTs/%TiO2 Nanocomposites; evaporation method; photodegradation process; Vat Green 1 Dye and Dianix Blue Dye

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.

How to Cite This Article

elsayed, badr; mohamed, walied; galal, hoda; abdelbary, hassan; and Ahmed, mahmoud (2019) "Photodecontamination of Vat Green 1 and Dianix Blue dyes by MWCNTs/x%TiO2 nanocomposites synthesized using evaporation method," Al-Azhar Bulletin of Science: Vol. 30: Iss. 1, Article 13.
DOI: https://doi.org/10.21608/absb.2019.13849.1014