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. 2017 Oct 31;5:84. doi: 10.3389/fchem.2017.00084

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Copyright © 2017 Han, Li, Li, Fan, Zhang, Zhang and Peng.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Schematic illustration for the photocatalytic H₂ production mechanism over the CQDs/P25 under UV-Vis and visible light (λ > 450 nm) irradiation; (B,C) The transient photocurrent response of P25 and the CQDs/P25 composites with different amount of CQDs in 1 M Na₂SO₄ aqueous solution under UV-Vis light and visible light (λ > 450 nm) irradiation (Reprinted from Yu H. et al., 2014, Copyright 2014, with permission from Royal Society of Chemistry).