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. 2018 Feb 26;11(3):335. doi: 10.3390/ma11030335

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© 2018 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 (http://creativecommons.org/licenses/by/4.0/).

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UV-Vis diffuse reflectance spectra of pure BiVO₄ and BiVO₄/Mn_1−xZn_xFe₂O₄ (15 wt %) samples. Inset: the plot of (Ahv)² vs. hv to estimate the Eg value.