Dendritic Fibrous Nanosilica Coated with a Graphitic Carbon Nitride Shell as a Selective Catalyst for N‑Dealkylation.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος:	Dendritic Fibrous Nanosilica Coated with a Graphitic Carbon Nitride Shell as a Selective Catalyst for N‑Dealkylation.
Συγγραφείς:	Lebedev MD; Department of Organic Chemistry, Ivanovo State University of Chemistry and Technology (ISUCT), Ivanovo RF-153000, Russia., Goncharenko AA; Department of Organic Chemistry, Ivanovo State University of Chemistry and Technology (ISUCT), Ivanovo RF-153000, Russia., Filippov DV; Department of Organic Chemistry, Ivanovo State University of Chemistry and Technology (ISUCT), Ivanovo RF-153000, Russia., Yunin PA; Institute for Physics of Microstructures, Russian Academy of Sciences (IPM RAS), Nizhny Novgorod RF-603950, Russia., Siaglova ED; Sirius University of Science and Technology, Sochi RF 354340, Russia., Kalyagin AA; G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo RF 153045, Russia., Pudikov DA; Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia., Skvortsov IA; Department of Organic Chemistry, Ivanovo State University of Chemistry and Technology (ISUCT), Ivanovo RF-153000, Russia.; Sirius University of Science and Technology, Sochi RF 354340, Russia.
Πηγή:	Precision chemistry [Precis Chem] 2026 Feb 27; Vol. 4 (8), pp. 1141-1154. Date of Electronic Publication: 2026 Feb 27 (Print Publication: 2026).
Τύπος έκδοσης:	Journal Article
Γλώσσα:	English
Στοιχεία περιοδικού:	Publisher: American Chemical Society Country of Publication: United States NLM ID: 9918574281706676 Publication Model: eCollection Cited Medium: Internet ISSN: 2771-9316 (Electronic) Linking ISSN: 27719316 NLM ISO Abbreviation: Precis Chem Subsets: PubMed not MEDLINE
Imprint Name(s):	Original Publication: Washington, District of Columbia : Anhui, China : American Chemical Society ; University of Science and Technology of China, [2023]-
Περίληψη:	KCC-1@g-C3N4 composites, synthesized via thermal condensation of the melamine-cyanuric acid (MCA) complex on mesoporous KCC-1 silica nanoparticles, were developed with g-C3N4 content ranging from 7 to 45 wt %. Characterization by SEM, STEM, FTIR, XPS, and UV-vis DRS revealed a core-shell structure with band gaps of 2.82 and 2.86 eV and specific surface areas of 167.5-526.8 m²/g. These composites were evaluated as photocatalysts for the transformation of rhodamine B under visible light. At low g-C3N4 content (7-33 wt %), the composites selectively promote N-dealkylation, converting rhodamine B to rhodamine-110, as confirmed by UV-vis spectroscopy and mass spectrometry MALDI-TOF. Higher g-C3N4 content (38-45 wt %) leads to chromophore destruction, resembling pure g-C3N4 behavior. The enhanced N-dealkylation selectivity at lower g-C3N4 ratios is attributed to efficient charge separation facilitated by KCC-1 impurity electronic levels and the defects in the g-C3N4 shell. These findings highlight the potential of KCC-1@g-C3N4 composites for selective photocatalytic transformations, offering applications in environmental remediation and organic synthesis. (© 2026 The Authors. Co-published by University of Science and Technology of China and American Chemical Society.)
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Entry Date(s):	Date Created: 20260827 Date Completed: 20260827 Latest Revision: 20260828
Update Code:	20260828
PubMed Central ID:	PMC13508478
DOI:	10.1021/prechem.5c00195
PMID:	42657014
Βάση Δεδομένων:	MEDLINE

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