Synthesis and characterization of efficient TiO2 mesoporous photocatalysts

被引：3

作者：

Ovodok, Evgeni ^{[1
]}

Maltanava, Hanna ^{[1
]}

Poznyak, Sergey ^{[1
]}

Ivanovskaya, Maria ^{[1
]}

Kudlash, Alexander ^{[2
]}

Scharnagl, Nico ^{[3
]}

Tedim, Joao ^{[4
]}

机构：

[1] Belarusian State Univ, Res Inst Phys Chem Problems, Leningradskaya Str 14, Minsk 220030, BELARUS

[2] Belarusian State Univ, Chem Dept, Nezavisimosti Ave 4, Minsk 220030, BELARUS

[3] Helmholtz Zentrum Geesthacht Ctr Mat & Coastal Re, Max Planck Str 1, D-21502 Geesthacht, Germany

[4] Univ Aveiro, Dept Mat & Ceram Engn, CICECO Aveiro Inst Mat, Campus Univ Santiago, P-3810193 Aveiro, Portugal

来源：

MATERIALS TODAY-PROCEEDINGS | 2017年 / 4卷 / 11期

基金：

欧盟地平线“2020”;

关键词：

Titanium dioxide; Mesoporous materials; Photocatalyst; TITANIUM-DIOXIDE; FUNDAMENTALS; MECHANISMS; POROSITY; ROUTE;

D O I：

10.1016/j.matpr.2017.09.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mesoporous TiO2 powder with large surface area and high porosity was prepared via template-free method of heat-stimulated oxidizing destruction of TiC by HNO3. Anatase crystalline phase of as-prepared and annealed at 200-400 degrees C titania was confirmed by XRD technique. Surface nitrate-nitro groups responsible for high adsorption capacity of the TiO2 powders were studied by FTIR spectroscopy. The annealing temperature can be used as a factor for regulation of titania morphology and structural properties. The rise in the annealing temperature higher than the temperature of nitrate-nitro groups decomposition induces the growth of TiO2 crystallites, decreasing porosity and surface area, the drop of adsorption capacity, and improving photocatalytic activity under UV irradiation. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：11526 / 11533

页数：8

共 50 条

[1] Synthesis and characterization of bioinspired hierarchical mesoporous TiO2 photocatalysts
He, Zuoli
Que, Wenxiu
He, Yucheng
MATERIALS LETTERS, 2013, 94 : 136 - 139
[2] Mesoporous films of TiO2 as efficient photocatalysts for the purification of water
Rathousky, Jiri
Kalousek, Vit
Kolar, Michal
Jirkovsky, Jaromir
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 2011, 10 (03) : 419 - 424
[3] Mesoporous films of TiO2 as efficient photocatalysts for the purification of water
Jiří Rathouský
Vít Kalousek
Michal Kolář
Jaromír Jirkovský
Photochemical & Photobiological Sciences, 2011, 10 : 419 - 424
[4] Mesoporous layers of TiO2 as highly efficient photocatalysts for the purification of air
Kalousek, Vit
Tschirch, Jessica
Bahnemann, Detlef
Rathousky, Jiri
SUPERLATTICES AND MICROSTRUCTURES, 2008, 44 (4-5) : 506 - 513
[5] Synthesis and characterization of Cu/N-doped mesoporous TiO2 visible light photocatalysts
Kim, Chan-Soo
Shin, Jung-Woo
Cho, Young-Hyuck
Jang, Hee-Dong
Byun, Hong-Sik
Kim, Tae-Oh
APPLIED CATALYSIS A-GENERAL, 2013, 455 : 211 - 218
[6] Preparation and characterization of ordered TiO2 photocatalysts: films and mesoporous structures
Erguen, Orcun
Karslioglu, Osman
Yilmaz, Aysen
Uener, Deniz
TURKISH JOURNAL OF CHEMISTRY, 2007, 31 (05) : 501 - 508
[7] Synthesis, Characterization and Photocatalysis of Mesoporous TiO2
Zhang, Xiangchao
Jia, Yanrong
Yu, Qumin
Tang, Aidong
Zhang, Shiying
ASIAN JOURNAL OF CHEMISTRY, 2014, 26 (17) : 5491 - 5494
[8] Ordered Mesoporous Films of TiO2 as Highly Efficient Photocatalysts for Clean Environment
Rathousky, Jiri
Kalousek, Vit
Walsh, Christine
NANOTECH CONFERENCE & EXPO 2009, VOL 3, TECHNICAL PROCEEDINGS: NANOTECHNOLOGY 2009: BIOFUELS, RENEWABLE ENERGY, COATINGS FLUIDICS AND COMPACT MODELING, 2009, : 202 - +
[9] Efficient Mesoporous Anatase-brookite TiO2 Photocatalysts for Degradation of Ibuprofen
El-Sheikh, Said M.
Khedr, Tamer M.
Ismial, Adel A.
Badawy, Waheed A.
2015 INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (3M-NANO), 2015, : 139 - 142
[10] Synthesis and characterization of kaolinite/TiO2 nano-photocatalysts
Wang, Cheng
Shi, Huisheng
Zhang, Pu
Li, Yan
APPLIED CLAY SCIENCE, 2011, 53 (04) : 646 - 649

← 1 2 3 4 5 →