Phase-dependent enhancement for CO2 photocatalytic reduction over CeO2/TiO2 catalysts

2016 ◽  
Vol 6 (22) ◽  
pp. 7967-7975 ◽  
Author(s):  
Jie Zhao ◽  
Yun Wang ◽  
Yingxuan Li ◽  
Xiu Yue ◽  
Chuanyi Wang
Keyword(s):  
Charge Carriers ◽  
Photocatalytic Reduction ◽  
Simulated Sunlight ◽  
Sunlight Irradiation ◽  
Interfacial Separation

The addition of CeO2 can increase the activity of rutile for CO2 photoreduction under simulated sunlight irradiation because of the presence of Ti defects at the CeO2–rutile interfaces, and this is beneficial to the interfacial separation of photogenerated charge carriers.

Preparation of La2Ti2O7/TiO2/Fe3O4 for effective persulfate activation under simulated sunlight irradiation

2021 ◽  
Vol 297 ◽  
pp. 121983
Author(s):  
Haiyu Xu ◽  
Lei Wang ◽  
Xiaolei Ma ◽  
Yan Meng ◽  
Jingwei Huang ◽  
...  
Keyword(s):  
Simulated Sunlight ◽  
Sunlight Irradiation ◽  
Persulfate Activation

New insights into the facilitated dissolution and sulfidation of silver nanoparticles under simulated sunlight irradiation in aquatic environments by extracellular polymeric substances

2021 ◽  
Author(s):  
Yi Yang ◽  
Shimei Zheng ◽  
Ruixuan Li ◽  
Xin Chen ◽  
Kunkun Wang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Extracellular Polymeric Substances ◽  
Aquatic Environments ◽  
Simulated Sunlight ◽  
Sunlight Irradiation

Impacts of extracellular polymeric substances on the dissolution and sulfidation of silver nanoparticles in aquatic environments.

Fe-MIL tuned and bound with Bi4O5Br2 for boosting photocatalytic reduction of CO2 to CH4 under simulated sunlight

2021 ◽  
Author(s):  
Xiaoli Li ◽  
Yuan Tang ◽  
Yue Jiang ◽  
Manman Mu ◽  
Xiaohong Yin
Keyword(s):  
Environmental Pollution ◽  
Photocatalytic Reduction ◽  
Simulated Sunlight ◽  
Innovative Material ◽  
Reduction Of Co2

The innovative material synthesized in this experiment can reduce CO2 to methane under simulated sunlight, solving environmental pollution and energy problems.

Crystal and electronic structures, and photoluminescence and photocatalytic properties of α-EuZrS3

2016 ◽  
Vol 40 (12) ◽  
pp. 10219-10226 ◽  
Author(s):  
Sheng-Ping Guo ◽  
Yang Chi ◽  
Jian-Ping Zou ◽  
Huai-Guo Xue
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Electronic Structures ◽  
Photocatalytic Properties ◽  
Simulated Sunlight ◽  
Sunlight Irradiation

Novel crystalline α-EuZrS3 shows Eu2+ photoluminescence and is photocatalytically active towards the decomposition of methylene blue under visible light or simulated sunlight irradiation.

scholarly journals Synergy of the Combination of Titanate Nanotubes with Titania Nanoparticles for the Photocatalytic Hydrogen Generation from Water-Methanol Mixture Using Simulated Sunlight

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Marco Serra ◽  
Hermenegildo Garcia
Keyword(s):  
Hydrogen Generation ◽  
Titanium Dioxide Nanoparticles ◽  
Titanate Nanotubes ◽  
Titania Nanoparticles ◽  
Simulated Sunlight ◽  
Visible Absorption ◽  
Sunlight Irradiation ◽  
Photocatalytic Hydrogen Generation ◽  
Commercial Titanium ◽  
Alkali Digestion

Alkali digestion of titanium nanoparticles leads, after neutralization, to the formation of titanate nanotubes with long aspect ratio. One salient change in the formation of titanate nanotubes is the observation of an extended visible absorption band up to 550 nm, responsible for their brown colour. Combination of titanate nanotubes with commercial titanium dioxide nanoparticles, either Evonik P25 or Millennium PC500, results in an enhanced photocatalytic activity for hydrogen generation from water-methanol mixtures. This synergy between the two titanium semiconductors has an optimum for a certain proportion of the two components and is observed in both the absence and the presence of platinum or gold nanoparticles. The best efficiency under simulated sunlight irradiation was for a combination of 12 wt.% titanate nanotubes containing 0.32 wt.% platinum in 88 wt.% Millennium PC500, where a two-time increase in the hydrogen generation is observed versus the activity of Millennium PC500 containing platinum. This synergy is proposed to derive from the interfacial electron transfer from titanate nanotubes undergoing photoexcitation at wavelengths in which Millennium PC500 does not absorb this form of titania nanoparticles. Our results illustrate how the combination of several titanium semiconductors can result in an enhancement efficiency with respect to their individual components.

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