Effect of amines on the peroxo-titanates and photoactivity of annealed TiO2

Komárková, Bára; Ecorchard, Petra; Motlochová, Monika; Slovák, V.; Vislocká, Xénia; Smržová, Darina; Kormunda, M.; Bezdička, Petr; Lušpai, Karol; Šimunková, M.; Dvoranová, D.; Šrámová Slušná, Michaela; Belháčová, Lenka; Šubrt, Jan

doi:https://dx.doi.org/10.1016/j.arabjc.2022.103808

Number of the records: 1

Effect of amines on the peroxo-titanates and photoactivity of annealed TiO2

1.

SYSNO ASEP	0554759
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Effect of amines on the peroxo-titanates and photoactivity of annealed TiO2
Author(s)	Komárková, Bára (UACH-T)_{RID, SAI, ORCID} Ecorchard, Petra (UACH-T)_{SAI, RID, ORCID} Motlochová, Monika (UACH-T)_{SAI, RID, ORCID} Slovák, V. (CZ) Vislocká, Xénia (UACH-T)_{RID, SAI} Smržová, Darina (UACH-T)_{ORCID, SAI, RID} Kormunda, M. (CZ) Bezdička, Petr (UACH-T)_{SAI, RID, ORCID} Lušpai, Karol (UFCH-W)_{ORCID, RID, SAI} Šimunková, M. (SK) Dvoranová, D. (SK) Šrámová Slušná, Michaela (UACH-T)_SAI Belháčová, Lenka (UFCH-W)_{SAI, ORCID} Šubrt, Jan (UACH-T)_{SAI, RID}
Article number	103808
Source Title	Arabian Journal of Chemistry . - : Elsevier - ISSN 1878-5352 Roč. 15, č. 6 (2022)
Number of pages	17 s.
Language	eng - English
Country	SA - Saudi Arabia
Keywords	Peroxo-titanates ; Amines ; Photoactivity ; C-doped TiO2 ; Photocatalyst
Subject RIV	CA - Inorganic Chemistry
OECD category	Inorganic and nuclear chemistry
Subject RIV - cooperation	J. Heyrovsky Institute of Physical Chemistry - Physical ; Theoretical Chemistry
R&D Projects	8X20001 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2018124 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	EF18_046/0015586 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	UACH-T - RVO:61388980 ; UFCH-W - RVO:61388955
UT WOS	000779141100006
EID SCOPUS	85125750845
DOI	10.1016/j.arabjc.2022.103808
Annotation	The aim of this study was to explore the influence of various n-propylamines (mono, di, and tri) and tert-butylamine on the properties of prepared peroxo-titanates and annealed TiO2. Detailed structural characterization (SEM, TEM with EDX, XRD) confirmed the 2D-foil morphology of TiO2 nanocrystals and the CHNS analysis together with XPS showed presence of carbon (under 1 wt. %). The annealed TiO2 showed excellent photocatalytic activity and up to four times higher decomposition rate constant upon UV irradiation than the P25. Favourable growth of TiO2 crystals was observed especially when propylamine and tert-butylamine were used (as precursors for the peroxo-titanates). Increased photocatalytic efficiency of the highly crystalline nano-TiO2 was confirmed due to high-reactive anatase facets and the morphology composed of microsheets formed by interconnected nanocrystals. The photoinduced electron transfer was confirmed via EPR spectroscopy. This synthesis’ procedure offers a novel preparation method of highly photoactive C-doped TiO2 achieved relatively easily after annealing of lyophilized amino-peroxo-titanate.
Workplace	Institute of Inorganic Chemistry
Contact	Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931
Year of Publishing	2023
Electronic address	http://hdl.handle.net/11104/0329415

Number of the records: 1