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. 2021 Jul 30;12(8):907. doi: 10.3390/mi12080907

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© 2021 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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Photodegradation of PE. (a) CuPc concentration wt% dependent degradation rate. Inset: Chemical formula of PE. (b) Surface photovoltage spectroscopy spectra of TiO₂ and TiO₂/CuPc photocatalyst. Inset: The I-V curves of different photocatalysts, i.e., TiO₂/CuPc without irradiation (curve A), TiO₂/CuPc under visible irradiation (curve B), TiO₂ under UV irradiation (curve C), and TiO₂/CuPc under UV radiation (curve D) [72]; reprinted from [72] with permission from Elsevier. (c) Effect of simulated sunlight on the photocatalytic degradation of PE film [74].