Hydrothermal oxidation synthesis of rod-like ZnO and the influence of oxygen vacancy on photocatalysis

2017 ◽  
Vol 64 (2) ◽  
pp. 188-194 ◽  
Author(s):  
Yao Wang ◽  
Baojian Wang ◽  
Ying Xu ◽  
Min Fang ◽  
Zhenyu Wu ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Hydrothermal Oxidation ◽  
Oxidation Synthesis

Propane Dehydrogenation Over Core-Shell Structured Al 2O 3@Al Via Hydrothermal Oxidation Synthesis

2021 ◽  
Author(s):  
Huanling Zhang ◽  
Kai Zhang ◽  
Guowei Wang ◽  
Ning Tang ◽  
Chunyi Li ◽  
...  
Keyword(s):  
Propane Dehydrogenation ◽  
Core Shell ◽  
Hydrothermal Oxidation ◽  
Oxidation Synthesis

Propane dehydrogenation over core–shell structured Al2O3@Al via hydrothermal oxidation synthesis

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122756
Author(s):  
Huanling Zhang ◽  
Kai Zhang ◽  
Guowei Wang ◽  
Ning Tang ◽  
Xiaolin Zhu ◽  
...  
Keyword(s):  
Propane Dehydrogenation ◽  
Core Shell ◽  
Hydrothermal Oxidation ◽  
Oxidation Synthesis

Impact Of Synthesis Route on the Water Oxidation Kinetics of Hematite Photoanodes

2020 ◽  
Author(s):  
Camilo A. Mesa ◽  
Ludmilla Steier ◽  
Benjamin Moss ◽  
Laia Francàs ◽  
James E. Thorne ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxidation Reaction ◽  
Charge Accumulation ◽  
Optical Signals ◽  
Current Voltage ◽  
Voltage Performance ◽  
Kinetics Of

<p><i>Operando</i> spectroelectrochemical analysis is used to determine the water oxidation reaction kinetics for hematite photoanodes prepared using four different synthetic procedures. Whilst these photoanodes exhibit very different current / voltage performance, their underlying water oxidation kinetics are found to be almost invariant. Lower photoanode performance was found to correlate with the observation of optical signals indicative of charge accumulation in mid-gap oxygen vacancy states, indicating these states do not contribute directly to water oxidation.</p>

Enhanced photocatalytic activity of perovskite NaNbO3 by oxygen vacancy engineering

2019 ◽  
Vol 21 (22) ◽  
pp. 11697-11704 ◽  
Author(s):  
Bian Yang ◽  
Jihong Bian ◽  
Lei Wang ◽  
Jianwei Wang ◽  
Yaping Du ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancy

Oxygen vacancy engineering can improve the photocatalytic activity of perovskite NaNbO3.

ChemInform Abstract: Hypervalent Iodine Oxidation: Synthesis of 5-Substituted-2(5H)-Furanones Using Iodosobenzene.

ChemInform ◽  
1990 ◽  
Vol 21 (5) ◽  
Author(s):  
R. M. MORIARTY ◽  
R. K. VAID ◽  
T. E. HOPKINS ◽  
B. K. VAID ◽  
A. TUNCAY
Keyword(s):  
Hypervalent Iodine ◽  
Oxidation Synthesis

Improvement of reliability of polymer nanocomposite based transparent memory device by oxygen vacancy rich ZnO nanorods

2016 ◽  
Vol 164 ◽  
pp. 53-58 ◽  
Author(s):  
Snigdha Bhattacharjee ◽  
Pranab Kumar Sarkar ◽  
Nandini Roy ◽  
Asim Roy
Keyword(s):  
Oxygen Vacancy ◽  
Zno Nanorods ◽  
Polymer Nanocomposite ◽  
Memory Device

scholarly journals Solid-phase extraction cartridges with multi-walled carbon nanotubes and effect of the oxygen functionalities on the recovery efficiency of organic micropollutants

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Marta O. Barbosa ◽  
Rui S. Ribeiro ◽  
Ana R. L. Ribeiro ◽  
M. Fernando R. Pereira ◽  
Adrián M. T. Silva
Keyword(s):  
Carbon Nanotubes ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Surface Groups ◽  
Phase Extraction ◽  
Organic Micropollutants ◽  
Oxidation Method ◽  
Hydrothermal Oxidation ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

AbstractPristine and functionalized multi-walled carbon nanotubes (MWCNTs) were investigated as adsorbent materials inside solid-phase extraction (SPE) cartridges for extraction and preconcentration of 8 EU-relevant organic micropollutants (with different pKa and polarity) before chromatographic analysis of surface water. The recoveries obtained were > 60% for 5/8 target pollutants (acetamiprid, atrazine, carbamazepine, diclofenac, and isoproturon) using a low amount of this reusable adsorbent (50 mg) and an eco-friendly solvent (ethanol) for both conditioning and elution steps. The introduction of oxygenated surface groups in the carbon nanotubes by using a controlled HNO3 hydrothermal oxidation method, considerably improved the recoveries obtained for PFOS (perfluorooctanesulfonic acid) and methiocarb, which was ascribed to the hydrogen bond adsorption mechanism, but decreased those observed for the pesticide acetamiprid and for two pharmaceuticals (carbamazepine and diclofenac), suggesting π–π dispersive interactions. Moreover, a good correlation was found between the recovery obtained for methiocarb and the amount of oxygenated surface groups on functionalized MWCNTs, which was mainly attributed to the increase of phenols and carbonyl and quinone groups. Thus, the HNO3 hydrothermal oxidation method can be used to finely tune the surface chemistry (and texture) of MWCNTs according to the specific micropollutants to be extracted and quantified in real water samples.

Oxygen Vacancy Engineering in Fe Doped Akhtenskite-Type MnO2 for Low-Temperature Toluene Oxidation

2020 ◽  
pp. 119873
Author(s):  
Yu Wang ◽  
Ji Wu ◽  
Gang Wang ◽  
Dengyao Yang ◽  
Tatsumi Ishihara ◽  
...  
Keyword(s):  
Low Temperature ◽  
Oxygen Vacancy ◽  
Toluene Oxidation
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