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Open AccessArticle

Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis

1
Department of Chemistry, VŠB-Technical University of Ostrava, 700 80 Ostrava, Czech Republic
2
Institute of Environmental Technology, VŠB-Technical University of Ostrava, 708 00 Ostrava, Czech Republic
3
Department of Advanced Nanomaterials and Organic Synthesis, Institute of Chemical Process Fundamentals, v.v.i., Czech Academy of Sciences, Rozvojová 1/135, 165 02 Prague 6, Czech Republic
4
ENET Centre, VŠB-Technical University of Ostrava, 708 00 Ostrava, Czech Republic
*
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(2), 193; https://doi.org/10.3390/nano10020193
Received: 5 January 2020 / Revised: 19 January 2020 / Accepted: 20 January 2020 / Published: 22 January 2020
(This article belongs to the Section Synthesis, Interfaces and Nanostructures)
Bulk graphitic carbon nitride (CN) was synthetized by heating of melamine at 550 °C, and the exfoliated CN (ExCN) was prepared by heating of CN at 500 °C. Sulfur-doped CN was synthesized by heating of thiourea (S-CN) and by a novel procedure based on the post-synthetic derivatization of CN with methanesulfonyl (CH3SO2) chloride (Mes-CN and Mes-ExCN). The obtained nanomaterials were investigated by common characterization methods and their photocatalytic activity was tested by means of the decomposition of acetic orange 7 (AO7) under ultraviolet A (UVA) irradiation. The content of sulfur in the modified CN decreased in the sequence of Mes-ExCN > Mes-CN > S-CN. The absorption of light decreased in the opposite manner, but no influence on the band gap energies was observed. The methanesulfonyl (mesyl) groups connected to primary and secondary amine groups were confirmed by high resolution mass spectrometry (HRMS). The photocatalytic activity decreased in the sequence of Mes-ExCN > ExCN > CN ≈ Mes-CN > S-CN. The highest activity of Mes-ExCN and ExCN was explained by the highest amounts of adsorbed Acetic Orange 7 (AO7). In addition, in the case of Mes-ExCN, chloride ions incorporated in the CN lattice enhanced the photocatalytic activity as well. View Full-Text
Keywords: graphitic carbon nitride; derivatization; sulfur; mesyl chloride; photocatalysis graphitic carbon nitride; derivatization; sulfur; mesyl chloride; photocatalysis
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MDPI and ACS Style

Praus, P.; Smýkalová, A.; Foniok, K.; Velíšek, P.; Cvejn, D.; Žádný, J.; Storch, J. Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis. Nanomaterials 2020, 10, 193.

AMA Style

Praus P, Smýkalová A, Foniok K, Velíšek P, Cvejn D, Žádný J, Storch J. Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis. Nanomaterials. 2020; 10(2):193.

Chicago/Turabian Style

Praus, Petr; Smýkalová, Aneta; Foniok, Kryštof; Velíšek, Petr; Cvejn, Daniel; Žádný, Jaroslav; Storch, Jan. 2020. "Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis" Nanomaterials 10, no. 2: 193.

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