The present work aimed at the synthesis of CNTs/TNTs composite photocatalyst with varying amount of CNTs. We studied the degradation of methyl orange (MO) using CNTs/TNTs composite as photocatalyst. Our CNTs/TNTs composite photocatalyst exhibited much high photocatalytic activity as compared to CNTs or TNTs alone. The effects of CNTs content incorporated in the composite,calcination temperature, and dosage of catalyst on photocatalytic activity of the CNTs/TNTs composite catalyst were also investigated.