Login for students

Login for employees

Publication detail

Photocatalytic decomposition of methanol-water solution over N-La/TiO2 photocatalysts
Authors: Dubnová Lada | Zvolská Magdalena | Edelmannova Miroslava | Matejova Lenka | Reli Martin | Drobná Helena | Kustrowski Piotr | Koci Kamila | Čapek Libor
Year: 2019
Type of publication: článek v odborném periodiku
Name of source: Applied Surface Science
Publisher name: Elsevier Science BV
Place: Amsterdam
Page from-to: 879-886
Titles:
Language Name Abstract Keywords
cze Fotokatalytický rozklad vodného roztoku metanolu na N-La/TiO2 fotokatalyzátoru Práce je zaměřena na roli N dopingu na fotokatalytické chování N-La/TiO2 materiálů při roykladu vodného roytoku metanolu. Přídavek malého množství povrchového dusíku významně ovlivnil množství produkovaného vodíku během fotokatalytického rozkladu. produkce vodíku; N-La/TiO2; povrchové druhy O; O vakance
eng Photocatalytic decomposition of methanol-water solution over N-La/TiO2 photocatalysts Manuscript focuses on the role of N-doping on photocatalytic behaviour of N-La/TiO2 materials in decomposition of methanol-water solution. N-La/TiO2 materials were prepared with approximately the same amounts of La (0.14-0.16 wt%) and different amounts of N (0.33-0.97 at. % of surface nitrogen). Addition of small amount of surface nitrogen significantly increased the amount of hydrogen produced for N-La/TiO2 photocatalysts in contrast to TiO2 and La/TiO2. The chemical composition (XRF, AAS, XPS), structural (XRD, Raman, XPS, TEM), textural (N-2-adsorption) and optical properties (DRS) were studied. N-La/TiO2 materials showed approximately the same specific surface area and crystallite size, with values ranging for La/TiO2 and N/TiO2 photocatalysts. For studied N-La/TiO2 photocatalysts, the photocatalytic activity increased with the increasing amount of surface nitrogen (interstitial positions, XPS), and subsequently with increasing amount of oxygen vacancies (Raman spectroscopy) and decreasing amount of surface oxygen species (surface lattice O species and hydroxyl groups evidenced by XPS). Hydrogen production; N-La/TiO2; Surface oxygen species; Oxygen vacancies

Departments

Other Parts

Map

en.mapy.cz

Services

Popular Links

© 2023 University of Pardubice, Studentská 95, 532 10 Pardubice 2
Phone: +420 466 036 111, 466 036 112, 466 036 113
Webmaster, RSS
Data box ID: f5vj9hu
Accessibility Statement
CC BY-NC-ND 4.0Creative CommonsAttributionNonCommercialNoDerivatives