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

Praus, P.; Smýkalová, A.; Foniok, K.; Velíšek, Petr; Cvejn, D.; Žádný, Jaroslav; Storch, Jan

doi:https://dx.doi.org/10.3390/nano10020193

Number of the records: 1

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

1.

SYSNO ASEP	0522977
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis
Author(s)	Praus, P. (CZ) Smýkalová, A. (CZ) Foniok, K. (CZ) Velíšek, Petr (UCHP-M)_{RID, SAI} Cvejn, D. (CZ) Žádný, Jaroslav (UCHP-M)_{RID, SAI, ORCID} Storch, Jan (UCHP-M)_{RID, ORCID, SAI}
Article number	193
Source Title	Nanomaterials. - : MDPI Roč. 10, č. 2 (2020)
Number of pages	20 s.
Language	eng - English
Country	CH - Switzerland
Keywords	graphitic carbon nitride ; derivatization ; sulfur
Subject RIV	JJ - Other Materials
OECD category	Materials engineering
Method of publishing	Open access
Institutional support	UCHP-M - RVO:67985858
UT WOS	000522456300012
EID SCOPUS	85078483335
DOI	10.3390/nano10020193
Annotation	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.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2021
Electronic address	https://www.mdpi.com/2079-4991/10/2/193

Number of the records: 1