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Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis
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SYSNO ASEP 0522977 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Post-Synthetic Derivatization of Graphitic Carbon Nitride with Methanesulfonyl Chloride: Synthesis, Characterization and Photocatalysis Tvůrce(i) 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, SAIČíslo článku 193 Zdroj.dok. Nanomaterials. - : MDPI
Roč. 10, č. 2 (2020)Poč.str. 20 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova graphitic carbon nitride ; derivatization ; sulfur Vědní obor RIV JJ - Ostatní materiály Obor OECD Materials engineering Způsob publikování Open access Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000522456300012 EID SCOPUS 85078483335 DOI 10.3390/nano10020193 Anotace 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. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2021 Elektronická adresa https://www.mdpi.com/2079-4991/10/2/193
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