All in the world, contamination rate of water sources has dramatically increased due to growing population and due to technological improvements, that have improved the way of life. As a wastewater treatment method, perovskites-driven photocatalysis has been regarded as the most environmentally-friendly route due to their significant properties, namely narrow band gap, stability, and high oxidation ability. Recent studies have focused on enhancing the photocatalytic efficiencies of perovskites by addressing issues like agglomeration, carrier separation, and absorption ability. For that, the most feasible modification method is to immobilize them on support materials, resulting in heterostructured samples. In this study, two different perovskites (LaCoO3 and Zn2TiO4) were therefore deposited on ethyl cellulose (EC), which shows hydrophilicity, cost-effectiveness, biodegradability, biocompatibility, non-toxicity and high surface area properties, to significantly degrade tetracycline under visible light illumination. The photocatalytic efficiencies of LaCoO3/EC and Zn2TiO4/EC were calculated as 95.1% and 89.1%, respectively whereas the performance was found to be 75.7% for the pristine cobalt-based sample and 69.6% for the titanate-based catalyst. In the presence of heterostructured catalysts, the decomposition process was mainly driven by super oxide radicals. Furthermore, the catalytic performances was limited under acidic and basic conditions. This work proves the suitability of EC as a support material for various perovskites to fabricate heterostructured photocatalysts for environmental remediation-related purpose.
Anahtar Kelimeler: Perovskite, Photocatalysis, Ethyl Cellulose
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