@article { author = {elsayed, badr and mohamed, walied and galal, hoda and abdelbary, hassan and Ahmed, mahmoud}, title = {Photodecontamination of Vat Green 1 and Dianix Blue dyes by MWCNTs/x%TiO2 nanocomposites synthesized using evaporation method}, journal = {Al-Azhar Bulletin of Science}, volume = {30}, number = {Issue 1-A (Chemistry)}, pages = {35-45}, year = {2019}, publisher = {Al-Azhar University, Faculty of Science (Boys)}, issn = {1110-2535}, eissn = {2636-3305}, doi = {10.21608/absb.2019.13849.1014}, 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}, url = {https://absb.journals.ekb.eg/article_41771.html}, eprint = {https://absb.journals.ekb.eg/article_41771_d388f5e08d2e79a19a81c34693295017.pdf} }