Decolorization performance of TiO2/Zr catalysts supported on Nanostructured material including Carbon

A composite of Zr-doped TiO2 and carboxylic multiwall carbon nano tube (MWCNT-COOH) as a support was successfully synthesized by using Sol-Gel method. Increasing specific surface area of TiO2/Zr nano photocatalyst (NPC), perform by padding the catalyst on substrate of (MWCNT-COOH). The porous structure of catalyst with high specific surface area obtained via calcination phase by removed carbonaceous structure.TiO2 with Zr as dopant lead to high photo catalyst activity and decreasing BG energy. Decolorization ability of NPCs monitored by using UV–Vis spectrophotometer. Padding of TiO2 on MWCNT-COOH as substrate cause high specific area and the best photocatalytic activity. Properties of support and catalyst were characterized by SEM, TEM, XRD, FT-IR and BET. For photocatalytic applications, the band gap of the synthesized semiconductors was determined. The TOC analysis has perform for proving the Decolorization of Acid Red 88 as a Azo dye. TiO2/Zr/MWCNT-COOH was the best performance.

کلیدواژه ها:

Zr-Doped TiO2 ، MWCNT-COOH ، spectroscopic techniques ، Sol-Gel ، decolorization