Sonochemical synthesis of SrTiO3/TiO2 heterojunction material

Istighfarini, Vina Nurul and Aprilia, Siti and Prasetyo, Anton (2020) Sonochemical synthesis of SrTiO3/TiO2 heterojunction material. Presented at The 10th International Conference on Green Technology (ICGT) "Empowering the Fourth Industrial Revolution through Green Science and Technology", 2-3 October 2019, Malang, Indonesia.

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Abstract

A composite SrTiO3/TiO2 heterojunction photocatalyst was prepared by sonication methods. The heterojunction material SrTiO3/TiO2 was synthesized using an ultrasonic cleaning bath for 4 hours, by mixing SrTiO3 and TiO2 with variations in the comparison of mol 1:1, 1:2, 1:4 and 1:6. Characterization using XRD shows heterojunction material consisting of SrTiO3 and TiO2 anatase without any impurities, with the morphological surface observed using SEM indicating the agglomerated small particles. The bandgap of heterojunction material with a variation in mol SrTiO3: TiO2 of 1:1, 1:2, 1:4 and 1:6 are 3.11; 3.09; 3.07; and 3.07 eV respectively. The all of bandgap is lower than the SrTiO3 and TiO2 bandgap, i.e. 3.2 eV.

Item Type: Conference (Paper)
Subjects: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030206 Solid State Chemistry
Divisions: Faculty of Mathematics and Sciences > Department of Chemistry
Depositing User: Dr Anton Prasetyo
Date Deposited: 18 Jun 2021 10:58

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