Hydrothermal Preparation and Photocatalytic Activity of Hierarchically Sponge-like Macro-/Mesoporous Titania

2007 ◽  
Vol 111 (28) ◽  
pp. 10582-10589 ◽  
Author(s):  
Jiaguo Yu ◽  
Lijuan Zhang ◽  
Bei Cheng ◽  
Yaorong Su
Keyword(s):  
Photocatalytic Activity ◽  
Mesoporous Titania ◽  
Hydrothermal Preparation

scholarly journals Tailoring Mesoporous Titania Features by Ultrasound-Assisted Sol-Gel Technique: Effect of Surfactant/Titania Precursor Weight Ratio

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1263
Author(s):  
Elvira Mahu ◽  
Cristina Giorgiana Coromelci ◽  
Doina Lutic ◽  
Iuliean Vasile Asaftei ◽  
Liviu Sacarescu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Weight Ratio ◽  
Soft Template ◽  
Synthesis Process ◽  
Mesoporous Titania ◽  
Cavitation Effect ◽  
Titania Precursor ◽  
Gel Technique ◽  
Ultrasound Assisted

A mesoporous titania structure has been prepared using the ultrasound-assisted sol-gel technique in order to find out a way to tailor its structure. The TiO2 obtained was compared to the same version of titania but synthesized by a conventional sol-gel method with the objective of understanding the effect of ultrasound in the synthesis process. All synthesis experiments were focused on the preparation of a titania photocatalyst. Thus, the anatase photocatalytic active phase of titania was proven by X-ray diffraction. Additionally, the ultrasonation treatment proved to increase the crystallinity of titania samples, being one of the requirements to having good photocatalytic activity for titania. The influence of surfactant/titania precursor weight ratio on the structural (XRD), textural (N2-sorption measurements), morphological (TEM), surface chemistry (FTIR) and optical properties (UVDR) was investigated. It was observed that the crystallite size, specific surface area, band gap energy and even photocatalytic activity was affected by the synergism occurring between cavitation effect and the surfactant/titania precursor weight ratio. The study yielded interesting great results that could be considered for further application of ultrasound to tailor mesoporous titania features via sol-gel soft template synthesis, against conventional sol-gel process.

scholarly journals Synthesis of a mesoporous titania thin film with a pseudo-single-crystal framework by liquid-phase epitaxial growth, and enhancement of photocatalytic activity

RSC Advances ◽  
2020 ◽  
Vol 10 (67) ◽  
pp. 40658-40662
Author(s):  
Norihiro Suzuki ◽  
Chiaki Terashima ◽  
Kazuya Nakata ◽  
Ken-ichi Katsumata ◽  
Akira Fujishima
Keyword(s):  
Thin Film ◽  
Photocatalytic Activity ◽  
Liquid Phase ◽  
Single Crystal ◽  
Chemical Process ◽  
Anatase Phase ◽  
Mesoporous Titania ◽  
Titania Thin Film ◽  
Liquid Phase Epitaxial Growth ◽  
Pseudo Single Crystal

An anatase-phase mesoporous titania thin film with a pseudo-single-crystal framework was facilely synthesized by an inexpensive chemical process.

Synthesis of mesoporous titania and the photocatalytic activity for decomposition of methyl orange

2006 ◽  
Vol 60 (20) ◽  
pp. 2493-2496 ◽  
Author(s):  
Zhonghua Wang ◽  
Tingshun Jiang ◽  
Yongmin Du ◽  
Kangmin Chen ◽  
Hengbo Yin
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Mesoporous Titania

scholarly journals Insights into the Formation and Properties of Templated Dual Mesoporous Titania with Enhanced Photocatalytic Activity

2017 ◽  
Vol 9 (3) ◽  
pp. 3113-3122 ◽  
Author(s):  
Issam Naboulsi ◽  
Bénédicte Lebeau ◽  
Laure Michelin ◽  
Cédric Carteret ◽  
Loic Vidal ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Mesoporous Titania

Effect of metal ion addition on structural characteristics and photocatalytic activity of ordered mesoporous titania

2019 ◽  
Vol 91 (3) ◽  
pp. 539-551 ◽  
Author(s):  
Ahmed Mudhafar Mohammed ◽  
Michael Sebek ◽  
Carsten Kreyenschulte ◽  
Henrik Lund ◽  
Jabor Rabeah ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metal Ion ◽  
Structural Characteristics ◽  
Mesoporous Titania ◽  
Ordered Mesoporous
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