Forming a Highly Active, Homogeneously Alloyed AuPt Co-catalyst Decoration on TiO2 Nanotubes Directly During Anodic Growth

2018 ◽  
Vol 10 (21) ◽  
pp. 18220-18226 ◽  
Author(s):  
Haidong Bian ◽  
Nhat Truong Nguyen ◽  
JeongEun Yoo ◽  
Seyedsina Hejazi ◽  
Shiva Mohajernia ◽  
...  
Keyword(s):  
Tio2 Nanotubes ◽  
Co Catalyst ◽  
Highly Active

Metallic MoN ultrathin nanosheets boosting high performance photocatalytic H2production

2018 ◽  
Vol 6 (46) ◽  
pp. 23278-23282 ◽  
Author(s):  
Jingrun Ran ◽  
Hailong Wang ◽  
Huanyu Jin ◽  
Chongyi Ling ◽  
Xuliang Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Co Catalyst ◽  
Ultrathin Nanosheets ◽  
Highly Active ◽  
First Time

MoN nanosheets for the first time serve as a highly active co-catalyst to greatly enhance the photocatalytic H2production of TiO2.

scholarly journals Mesoporous bimetallic Fe/Co as highly active heterogeneous Fenton catalyst for the degradation of tetracycline hydrochlorides

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Junchao Li ◽  
Xuhua Li ◽  
Jindong Han ◽  
Fansheng Meng ◽  
Jinyuan Jiang ◽  
...  
Keyword(s):  
Bimetallic Catalyst ◽  
Removal Rate ◽  
Catalytic Efficiency ◽  
Nitrogen Adsorption ◽  
Catalytic Performance ◽  
Operating Parameters ◽  
Co Catalyst ◽  
Highly Active ◽  
Fenton Catalyst ◽  
Potential Applications

Abstract Mesoporous bimetallic Fe/Co was prepared as a Fenton-like catalyst to degrade the tetracycline hydrochlorides (TC). The nanocasting strategy with KIT-6 as a hard template was carried out to synthesize the mesoporous bimetallic catalyst. The mesoporous bimetallic Fe/Co catalyst was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), nitrogen adsorption-desorption isotherms, and Brunauer-Emmett-Teller (BET) method. The results showed that the catalyst has significant nanofeatures; the surface area, pore size, and particle size were 113.8 m2g−1, 4 nm, and 10 nm, respectively. In addition, the effects of the operating parameters, such as the iron-to-cobalt ratio, pH, H2O2, and initial TC concentrations on its catalytic performance were investigated. The best operating parameters were as follows: iron-to-cobalt ratio = 2:1 to 1:1, pH = 5–9, H2O2: 30 mmol, initial TC less than 30 mg/L. Furthermore, the mesoporous bimetallic Fe/Co showed a good performance for degrading TC, achieving a removal rate of 86% of TC after 3 h under the reaction conditions of H2O2 = 30 mmol, mesoporous bimetallic Fe/Co = 0.6 g/L, TC = 30 mg/L, pH = 7.0, and temperature = 25.5 °C. The mesoporous bimetallic Fe/Co catalyst shows good stability and reusability. This work demonstrated that mesoporous bimetallic Fe/Co has excellent catalytic efficiency, smaller amounts of leached ions, and wider pH range, which enhance its potential applications.

scholarly journals “Black” TiO2 Nanotubes Formed by High-Energy Proton Implantation Show Noble-Metal-co-Catalyst Free Photocatalytic H2-Evolution

Nano Letters ◽  
2015 ◽  
Vol 15 (10) ◽  
pp. 6815-6820 ◽  
Author(s):  
Ning Liu ◽  
Volker Häublein ◽  
Xuemei Zhou ◽  
Umamaheswari Venkatesan ◽  
Martin Hartmann ◽  
...  
Keyword(s):  
Noble Metal ◽  
Tio2 Nanotubes ◽  
High Energy ◽  
H2 Evolution ◽  
High Energy Proton ◽  
Co Catalyst ◽  
Energy Proton ◽  
Black Tio2 ◽  
Proton Implantation ◽  
Photocatalytic H2 Evolution

WS2 as highly active co-catalyst for the regeneration of Fe(II) in the advanced oxidation processes

Chemosphere ◽  
2021 ◽  
Vol 262 ◽  
pp. 128067
Author(s):  
Haopeng Luo ◽  
Xin Zhou ◽  
Xiaojie Guo ◽  
Zhiyong Fang ◽  
Quanyuan Chen ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Co Catalyst ◽  
Oxidation Processes ◽  
Highly Active

scholarly journals Intrinsic Au-decoration on anodic TiO2 nanotubes grown from metastable Ti–Au sputtered alloys—High density co-catalyst decoration enhances the photocatalytic H2 evolution

2019 ◽  
Vol 14 ◽  
pp. 118-125 ◽  
Author(s):  
Seyedsina Hejazi ◽  
Marco Altomare ◽  
Nhat Truong Nguyen ◽  
Shiva Mohajernia ◽  
Markus Licklederer ◽  
...  
Keyword(s):  
Tio2 Nanotubes ◽  
High Density ◽  
H2 Evolution ◽  
Co Catalyst ◽  
Photocatalytic H2 Evolution

Engineering highly active Cd1−xZnxS nanopopcorns via zinc blende/wurtzite phase junctions for enhanced photocatalytic H2 evolution without co-catalyst

2021 ◽  
Author(s):  
Xiaosheng Guo ◽  
Chu-Chu Cheng ◽  
Fangshu Xing ◽  
Caijin Huang
Keyword(s):  
Hydrogen Evolution ◽  
Structure Design ◽  
H2 Evolution ◽  
Rational Structure ◽  
Wurtzite Phase ◽  
Co Catalyst ◽  
Highly Active ◽  
Zinc Blende ◽  
Photocatalytic H2 Evolution

Rational structure design of semiconductor photocatalysts is meaningful to enhance their sunlight-driven hydrogen-evolution performance. Herein, we present a facile ap-proach to prepare Cd1−xZnxS nanopopcorns with zinc blende/wurtzite phase junctions by...

Electrochemical oxidation of 4-chlorophenol for wastewater treatment using highly active UV treated TiO2 nanotubes

Chemosphere ◽  
2018 ◽  
Vol 209 ◽  
pp. 182-190 ◽  
Author(s):  
Min Tian ◽  
Sapanbir S. Thind ◽  
Jesse S. Dondapati ◽  
Xinyong Li ◽  
Aicheng Chen
Keyword(s):  
Wastewater Treatment ◽  
Electrochemical Oxidation ◽  
Tio2 Nanotubes ◽  
Highly Active

scholarly journals The Low Temperature Solvent-Free Aerobic Oxidation of Cyclohexene to Cyclohexane Diol over Highly Active Au/Graphite and Au/Graphene Catalysts

Catalysts ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 311 ◽  
Author(s):  
Owen Rogers ◽  
Samuel Pattisson ◽  
Joseph Macginley ◽  
Rebecca Engel ◽  
Keith Whiston ◽  
...  
Keyword(s):  
Low Temperature ◽  
Aerobic Oxidation ◽  
Gold Catalysts ◽  
Solvent Free ◽  
Reaction Conditions ◽  
Co Catalyst ◽  
Radical Initiator ◽  
Highly Active ◽  
Number Of Factors

The selectivity and activity of gold-catalysts supported on graphite and graphene have been compared in the oxidation of cyclohexene. These catalysts were prepared via impregnation and sol immobilisation methods, and tested using solventless and radical initiator-free reaction conditions. The selectivity of these catalysts has been directed towards cyclohexene epoxide using WO3 as a co-catalyst and further to cyclohexane diol by the addition of water, achieving a maximum selectivity of 17% to the diol. The sol immobilisation catalysts were more reproducible and far more active, however, selectivity towards the diol was lower than for the impregnation catalyst. The results suggest that formation of cyclohexane diol through solventless oxidation of cyclohexene is limited by a number of factors, such as the formation of an allylic hydroperoxyl species as well as the amount of in situ generated water.

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