Direct access to macroporous chromium nitride and chromium titanium nitride with inverse opal structure

2015 ◽  
Vol 51 (23) ◽  
pp. 4876-4879 ◽  
Author(s):  
Weitian Zhao ◽  
Francis J. DiSalvo
Keyword(s):  
Titanium Nitride ◽  
Single Phase ◽  
Direct Access ◽  
Chromium Nitride ◽  
Inverse Opal ◽  
Facile Synthesis ◽  
Inverse Opal Structure

A facile synthesis of single-phase, nanocrystalline macroporous chromium nitride and chromium titanium nitride with inverse opal morphology is developed.

scholarly journals Carbon Nitride Quantum Dots Modified TiO2 Inverse Opal Photonic Crystal for Solving Indoor VOCs Pollution

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 464
Author(s):  
Jie Yu ◽  
Angel Caravaca ◽  
Chantal Guillard ◽  
Philippe Vernoux ◽  
Liang Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Nitride ◽  
Sol Gel ◽  
Green Energy ◽  
Inverse Opal ◽  
Oxidation Reactions ◽  
Composite Photocatalyst ◽  
Colloidal Photonic Crystals ◽  
Inverse Opal Structure

Indoor toxic volatile organic compounds (VOCs) pollution is a serious threat to people’s health and toluene is a typical representative. In this study, we developed a composite photocatalyst of carbon nitride quantum dots (CNQDs) in situ-doped TiO2 inverse opal TiO2 IO for efficient degradation of toluene. The catalyst was fabricated using a sol-gel method with colloidal photonic crystals as the template. The as-prepared catalyst exhibited excellent photocatalytic performance for degradation of toluene. After 6 h of simulated sunlight irradiation, 93% of toluene can be converted into non-toxic products CO2 and H2O, while only 37% of toluene is degraded over commercial P25 in the same condition. This greatly enhanced photocatalytic activity results from two aspects: (i) the inverse opal structure enhances the light harvesting while providing adequate surface area for effective oxidation reactions; (ii) the incorporation of CNQDs in the framework of TiO2 increases visible light absorption and promotes the separation of photo-generated charges. Collectively, highly efficient photocatalytic degradation of toluene has been achieved. In addition, it can be expanded to efficient degradation of organic pollutants in liquid phase such as phenol and Rhodamine B. This study provides a green, energy saving solution for indoor toxic VOCs removal as well as for the treatment of organic wastewater.

Inverse Opal Structure of SnO2 and SnO2: Zn for Gas Sensing

2006 ◽  
Author(s):  
C. Baratto ◽  
G. Faglia ◽  
G. Sberveglieri ◽  
A. Sutti ◽  
G. Calestani ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Inverse Opal ◽  
Inverse Opal Structure

scholarly journals Fabrication of Spherical Titania Inverse Opal Structures Using Electro-Hydrodynamic Atomization

Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3905 ◽  
Author(s):  
Jong-Min Lim ◽  
Sehee Jeong
Keyword(s):  
Composite Structure ◽  
Self Assembly ◽  
Interstitial Site ◽  
Titania Nanoparticles ◽  
Face Centered Cubic ◽  
Inverse Opal ◽  
Uniform Size ◽  
Anatase Titania ◽  
Inverse Opal Structure ◽  
Fcc Structure

Spherical PS/HEMA opal structure and spherical titania inverse opal structure were fabricated by self-assembly of colloidal nanoparticles in uniform aerosol droplets generated with electro-hydrodynamic atomization method. When a solution of PS/HEMA nanoparticles with uniform size distribution was used, PS/HEMA nanoparticles self-assembled into a face-centered cubic (FCC) structure by capillary force with the evaporation of the solvent in aerosol droplet, resulting in a spherical opal structure. When PS/HEMA nanoparticles and anatase titania nanoparticles were dispersed simultaneously into the solution, titania nanoparticles with relatively smaller size were assembled at the interstitial site of PS/HEMA nanoparticles packed in the FCC structure, resulting in a spherical opal composite structure. Spherical titania inverse opal structure was fabricated after removing PS/HEMA nanoparticles from the spherical opal composite structure by calcination.

scholarly journals Novel 3DOM BiVO4/TiO2 nanocomposites for highly enhanced photocatalytic activity

2015 ◽  
Vol 3 (42) ◽  
pp. 21244-21256 ◽  
Author(s):  
Meryam Zalfani ◽  
Benoit van der Schueren ◽  
Zhi-Yi Hu ◽  
Joanna C. Rooke ◽  
Ramzi Bourguiga ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
High Energy ◽  
Inverse Opal ◽  
High Energy Electrons ◽  
Inverse Opal Structure ◽  
Long Lifetime

BiVO4 nanoparticles in the 3DOM TiO2 inverse opal structure act as a sensitizer to absorb visible light and to transfer efficiently high energy electrons to TiO2 to ensure long lifetime of photogenerated charges and keep them well separated, explaining the extraordinarily high photocatalytic performance of 3DOM BiVO4/TiO2 nanocomposites.

A novel bifunctional Dy3+ activated RbCaF3 single phase phosphor: Facile synthesis and dual-luminescence properties for WLEDs and dosimetry applications

2020 ◽  
Vol 31 (7) ◽  
pp. 2597-2604 ◽  
Author(s):  
Arumugam Raja ◽  
R. Nagaraj ◽  
K. Ramachandran ◽  
V. Sivasubramani ◽  
G. Annadurai ◽  
...  
Keyword(s):  
Single Phase ◽  
Luminescence Properties ◽  
Facile Synthesis

Carbon and carbon-silicon carbide nanocomposites with inverse opal structure

2013 ◽  
Vol 83 (11) ◽  
pp. 2167-2172
Author(s):  
G. A. Emel’chenko ◽  
V. M. Masalov ◽  
A. A. Zhokhov ◽  
A. N. Tereshchenko ◽  
E. A. Shteinman ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Inverse Opal ◽  
Inverse Opal Structure

Preparation of LiFePO4 with inverse opal structure and its satisfactory electrochemical properties

2005 ◽  
Vol 40 (12) ◽  
pp. 2039-2046 ◽  
Author(s):  
Junbiao Lu ◽  
Zilong Tang ◽  
Zhongtai Zhang ◽  
Wanci Shen
Keyword(s):  
Electrochemical Properties ◽  
Inverse Opal ◽  
Inverse Opal Structure
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