Hydrothermal synthesis and photocatalytic activity of mesoporous titania hollow microspheres

2008 ◽  
Vol 69 (5-6) ◽  
pp. 1147-1151 ◽  
Author(s):  
Jiaguo Yu ◽  
Guohong Wang
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Hollow Microspheres ◽  
Mesoporous Titania

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.

Hydrothermal synthesis and enhanced photocatalytic activity of Na0.5Gd0.5MoO4

2021 ◽  
Author(s):  
Xuquan Wang ◽  
Yang Li ◽  
Fei Wang ◽  
Baoqiang Xu ◽  
Bin Yang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis

scholarly journals Template-Free Fabrication of Bi2WO6 Hierarchical Hollow Microspheres with Visible-Light-Driven Photocatalytic Activity

Energies ◽  
2016 ◽  
Vol 9 (10) ◽  
pp. 764 ◽  
Author(s):  
Yuxue Zhou ◽  
Xiangdong Meng ◽  
Ling Tong ◽  
Xianghua Zeng ◽  
Xiaobing Chen
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hollow Microspheres ◽  
Visible Light Driven ◽  
Template Free

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
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