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. 2022 Feb 23;14(5):880. doi: 10.3390/polym14050880

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(A) Photodegradability of RR120 and OFL (B) corresponding kinetic data, (a) bare TiO₂ (RR 120), (b) AC-TiO₂ (RR 120), (c) bare TiO₂ (OFL), (d) AC-TiO₂ (OFL), pH=5; [RR 120] = 50 ppm; [OFL] = 10 ppm; Catalyst suspended = 50 mg/100 mL. (C) Effect of pH on RR 120 decolourization with UV-A light under bare TiO₂ and AC-TiO₂. [RR 120] = 50 ppm; catalyst suspended = 50 mg/100 mL. (D) Catalyst reusability on photocatalytic decolourization of RR 120 dye under UV A light, AC-TiO₂ suspended = 50 mg/100 mL; pH = 5; irradiation time = 50 min.