Interfacial Manipulation by Rutile TiO2 Nanoparticles to Boost CO2 Reduction into CO on a Metal-Complex/Semiconductor Hybrid Photocatalyst

2017 ◽  
Vol 9 (28) ◽  
pp. 23869-23877 ◽  
Author(s):  
Keisuke Wada ◽  
Chandana Sampath Kumara Ranasinghe ◽  
Ryo Kuriki ◽  
Akira Yamakata ◽  
Osamu Ishitani ◽  
...  
Keyword(s):  
Metal Complex ◽  
Tio2 Nanoparticles ◽  
Co2 Reduction ◽  
Rutile Tio2 ◽  
Complex Semiconductor ◽  
Hybrid Photocatalyst

Bio-proton coupled semiconductor/metal-complex hybrid photoelectrocatalytic interface for efficient CO2 reduction

2019 ◽  
Vol 21 (2) ◽  
pp. 339-348 ◽  
Author(s):  
Jibo Liu ◽  
Chenyan Guo ◽  
Xiaojun Hu ◽  
Guohua Zhao
Keyword(s):  
Proton Transfer ◽  
Metal Complex ◽  
High Efficiency ◽  
Co2 Reduction ◽  
Semiconductor Substrate ◽  
Molecular Catalyst ◽  
Proton Coupling ◽  
Complex Hybrid ◽  
Complex Semiconductor

Aimed at high-efficiency biomimetic CO2 photoelectrochemical conversion, a bio-proton coupling metal-complex/semiconductor hybrid photoelectrocatalytic interface (Ru-BNAH/TiO2/Cu2O) was constructed by covalently modifying an in situ proton-transfer functionized molecular catalyst (Ru-BNAH) on the surface of a TiO2/Cu2O composite semiconductor substrate electrode.

Direct assembly synthesis of metal complex–semiconductor hybrid photocatalysts anchored by phosphonate for highly efficient CO2 reduction

2011 ◽  
Vol 47 (30) ◽  
pp. 8673 ◽  
Author(s):  
Tomiko M. Suzuki ◽  
Hiromitsu Tanaka ◽  
Takeshi Morikawa ◽  
Masayo Iwaki ◽  
Shunsuke Sato ◽  
...  
Keyword(s):  
Metal Complex ◽  
Co2 Reduction ◽  
Highly Efficient ◽  
Direct Assembly ◽  
Complex Semiconductor

Effects of Interfacial Electron Transfer in Metal Complex–Semiconductor Hybrid Photocatalysts on Z-Scheme CO2 Reduction under Visible Light

ACS Catalysis ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 9744-9754 ◽  
Author(s):  
Akinobu Nakada ◽  
Ryo Kuriki ◽  
Keita Sekizawa ◽  
Shunta Nishioka ◽  
Junie Jhon M. Vequizo ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Metal Complex ◽  
Visible Light ◽  
Co2 Reduction ◽  
Interfacial Electron Transfer ◽  
Complex Semiconductor

Ag and TiO2 nanoparticles co-modified defective zeolite TS-1 for improved photocatalytic CO2 reduction

2021 ◽  
Vol 403 ◽  
pp. 124019 ◽  
Author(s):  
Yuanyuan Sun ◽  
Guohui Li ◽  
Yun Gong ◽  
Zhenfan Sun ◽  
Heliang Yao ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Co2 Reduction

Sol-gel synthesized rutile TiO2 nanoparticles loaded with Cardamom essential oil: Enhanced antibacterial activity

2021 ◽  
pp. 102581
Author(s):  
Oussama Ouerghi ◽  
Mohammed H. Geesi ◽  
Elmutasim O. Ibnouf ◽  
Mohammad Javed Ansari ◽  
Pravej Alam ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Tio2 Nanoparticles ◽  
Sol Gel ◽  
Rutile Tio2

Preparation and Photocatalytic Activity of Mixed Phase Anatase/rutile TiO2 Nanoparticles for Phenol Degradation

2014 ◽  
Vol 70 (2) ◽  
Author(s):  
Mohamad Azuwa Mohamed ◽  
Wan Norharyati Wan Salleh ◽  
Juhana Jaafar ◽  
Norhaniza Yusof
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Nanoparticles ◽  
High Performance ◽  
Sol Gel ◽  
Phenol Degradation ◽  
Chemical Properties ◽  
Mixed Phase ◽  
Rutile Tio2 ◽  
Physico Chemical ◽  
Degussa P25

The evolution of desirable physico-chemical properties in high performance photocatalyst materials involves steps that must be carefully designed, controlled, and optimized. This study investigated the role of key parameter in the preparation and photocatalytic activity analysis of the mixed phase of anatase/rutile TiO2 nanoparticles, prepared via sol-gel method containing titanium-n-butoxide Ti(OBu)4 as a precursor material, nitric acid as catalyst, and isopropanol as solvent. The prepared TiO2 nanoparticles were characterized by means of XRD, SEM, and BET analyses, and UV-Vis-NIR spectroscopy. The results indicated that the calcination temperature play an important role in the physico-chemical properties and photocatalytic activity of the resulting TiO2 nanoparticles. Different calcination temperatures would result in different composition of anatase and rutile. The photocatalytic activity of the prepared mixed phase of anatase/rutile TiO2 nanoparticles was measured by photodegradation of 50 ppm phenol in an aqueous solution. The commercial anatase from Sigma-Aldrich and Degussa P25 were used for comparison purpose. The mixed phase of anatase/rutile TiO2 nanoparticles (consists of 38.3% anatase and 61.7% rutile) that was prepared at 400°C exhibited the highest photocatalytic activity of 84.88% degradation of phenol. The result was comparable with photocatalytic activity demonstrated by Degussa P25 by 1.54% difference in phenol degradation. The results also suggested that the mixed phase of anatase/rutile TiO2 nanoparticles is a promising candidate for the phenol degradation process. The high performance of photocatalyst materials may be obtained by adopting a judicious combination of anatase/rutile and optimized calcination conditions.

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