Effect of synthesis condition on morphology and yield of hydrothermally grown SnO2 nanorod clusters

In this present work, we report the synthesis of SnO2 nanorod clusters by means of hydrothermal treatment of colloidal hydrous tin oxide at 200 °C. Effect of synthesis parameters including concentrations of Na2SnO3·3H2O and NaOH, and hydrothermal time on morphology and yield of the products is investigated. At optimum synthesis condition, nanorod clusters consisting of single crystalline, tetragonal-shaped rutile SnO2 nanorod with uniform shape and size of 190 ± 6 nm in diameter and 1.4 ± 0.2 μm in length were obtained. The influence of precursor concentration on yield and morphology development was discussed. Grown mechanism is described based on aggregation of nanocrystals and their subsequent growth homocentrically.