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Open AccessArticle

An Effective Approach to Improve the Photocatalytic Activity of Graphitic Carbon Nitride via Hydroxyl Surface Modification

Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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Catalysts 2019, 9(1), 17; https://doi.org/10.3390/catal9010017
Received: 25 November 2018 / Revised: 21 December 2018 / Accepted: 24 December 2018 / Published: 28 December 2018
(This article belongs to the Special Issue State-of-the-Art Photocatalytical Technology in North America)
In this work, we have developed a hydrothermal method to modify g-C3N4 with hydroxyl surface modification. Modified g-C3N4 has exhibited higher photocatalytic activity in the removal of phenolic compounds under visible light. The improvement may be due to the following merits: (1) Tuning of the hydrophobic surface of g-C3N4 to be hydrophilic; (2) improved adsorption energy, and (3) narrowed band gap for g-C3N4 after hydroxyl surface modification. This method is easy-to-operate, very effective in adding hydroxyl groups on the surface of C3N4, and may be extended to other systems to promote their photocatalytic activities in water treatment. View Full-Text
Keywords: water treatment; photocatalysis; g-C3N4; hydroxyl; surface modification water treatment; photocatalysis; g-C3N4; hydroxyl; surface modification
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MDPI and ACS Style

Li, Z.; Meng, X.; Zhang, Z. An Effective Approach to Improve the Photocatalytic Activity of Graphitic Carbon Nitride via Hydroxyl Surface Modification. Catalysts 2019, 9, 17.

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