In this work, ZnSnO3 nanostructures was prepared by pechini method and new gelling agent. Herein we used dien and Tepa as gelling agent. In addition, maleic acid, benzoic acid, and Trimesic acid were used as hydrolysis agent. Furthermore, the effect of these gelling agent and hydrolysis agent on the size of final products were investigated and as prepared ZnSnO3 nanostructures were used to degrade acid brown 14 under UV light. ZnSnO3 nanostructures shows high photocatalytic activity and degrade about 92% of acid brown 14 during 2 h irradiation. XRD, SEM, EDX, DRS, FT-IR, and TEM were used for characterization of as prepared nanostructures. (C) 2017 Published by Elsevier B.V.