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.