Journal
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
Volume 248, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mseb.2019.114386
Keywords
Photocatalysis; Fe2O3/ZnO thin films; Spray pyrolysis; Mott-Schottky analysis; Salicylic acid; Methyl orange dye
Funding
- Department of science and technology (DST) New Delhi
- Science and engineering research board (SERB) [SB/S2/CMP-0041/2013]
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Fe2O3/ZnO thin films are synthesized onto glass and fluorine doped tin oxide (FTO) coated glass substrates by simple spray pyrolysis technique. The effect of ZnO layer on structural, optical, morphological and photo catalytic properties of films has been studied. All synthesized films are polycrystalline having rhombohedral and hexagonal crystal structures for Fe2O3 and ZnO phases respectively. The maximum photoelectrochemical performance [(I-sc = 0.884 mA) and (V-oc = 980 my)] has been observed at 60 ml quantity of ZnO solution. Photocatalytic and photoelectrocatalytic degradation performances of large area (100 cm(2)) Fe2O3/ZnO photo electrode employed for degradation of salicylic acid (SA) and methyl orange (MO) dye under solar light illumination has been studied. It is observed that 80% of SA and 98 % of MO dye get degraded in 320 min and 80 min respectively. The mineralization of SA and MO dye are studied by measuring chemical oxygen demand (COD) values.
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