Fabrication of NH2-MIL-125 nanocrystals for high performance photocatalytic oxidation

2020 ◽  
Vol 4 (6) ◽  
pp. 2823-2830 ◽  
Author(s):  
Xiuniang Tan ◽  
Jianling Zhang ◽  
Jinbiao Shi ◽  
Xiuyan Cheng ◽  
Dongxing Tan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxidation Reaction ◽  
High Performance ◽  
Photocatalytic Oxidation ◽  
Nanometer Scale ◽  
Mild Conditions ◽  
First Time

We demonstrate for the first time that downsizing NH2-MIL-125 crystals to the nanometer scale can greatly improve their photocatalytic activity for the benzylamine oxidation reaction under mild conditions.

Improved photocatalytic performance of covalent organic frameworks by nanostructure construction

2020 ◽  
Vol 56 (33) ◽  
pp. 4567-4570 ◽  
Author(s):  
Lifei Liu ◽  
Bingxing Zhang ◽  
Xiuniang Tan ◽  
Dongxing Tan ◽  
Xiuyan Cheng ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
High Performance ◽  
Photocatalytic Oxidation ◽  
Photocatalytic Performance ◽  
Covalent Organic Frameworks ◽  
Nanostructured Surfaces ◽  
Covalent Organic Framework ◽  
Mild Conditions ◽  
Organic Framework

Covalent organic framework capsules with nanostructured surfaces were constructed, which exhibit high performance for photocatalytic oxidation reaction under mild conditions.

scholarly journals Design of Cost-Efficient and Photocatalytically Active Zn-Based MOFs Decorated with Cu2O Nanoparticles for CO2 Methanation

2019 ◽  
Author(s):  
María Cabrero-Antonino ◽  
Sonia Remiro-Buenamañana ◽  
Manuel Souto ◽  
Antonio A. García- Valdivia ◽  
Duane Choquesillo-Lazarte ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metallic Nanoparticles ◽  
Cost Effective ◽  
Co2 Methanation ◽  
Mild Conditions ◽  
Cu2o Nanoparticles ◽  
Cost Efficient ◽  
Sacrificial Agent ◽  
First Time ◽  
The Way

<div>Here we show for the first time a MOF that is photocatalytically</div><div>active for the light-assisted CO<sub>2</sub> methanation at mild conditions</div><div>(215 °C) without the inclusion of metallic nanoparticles or any</div><div>sacrificial agent. The presence of Cu<sub>2</sub>O nanoparticles causes a 50 % increase in the photocatalytic activity. These results pave the way to developping efficient and cost-effective materials for CO<sub>2</sub> elimination.</div>

scholarly journals Design of Cost-Efficient and Photocatalytically Active Zn-Based MOFs Decorated with Cu2O Nanoparticles for CO2 Methanation

2019 ◽  
Author(s):  
María Cabrero-Antonino ◽  
Sonia Remiro-Buenamañana ◽  
Manuel Souto ◽  
Antonio A. García- Valdivia ◽  
Duane Choquesillo-Lazarte ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metallic Nanoparticles ◽  
Cost Effective ◽  
Co2 Methanation ◽  
Mild Conditions ◽  
Cu2o Nanoparticles ◽  
Cost Efficient ◽  
Sacrificial Agent ◽  
First Time ◽  
The Way

<div>Here we show for the first time a MOF that is photocatalytically</div><div>active for the light-assisted CO<sub>2</sub> methanation at mild conditions</div><div>(215 °C) without the inclusion of metallic nanoparticles or any</div><div>sacrificial agent. The presence of Cu<sub>2</sub>O nanoparticles causes a 50 % increase in the photocatalytic activity. These results pave the way to developping efficient and cost-effective materials for CO<sub>2</sub> elimination.</div>

Hierarchically macro–meso–microporous metal–organic framework for photocatalytic oxidation

2020 ◽  
Vol 56 (73) ◽  
pp. 10754-10757
Author(s):  
Yufei Sha ◽  
Jianling Zhang ◽  
Dongxing Tan ◽  
Fanyu Zhang ◽  
Xiuyan Cheng ◽  
...  
Keyword(s):  
High Performance ◽  
Photocatalytic Oxidation ◽  
Metal Organic Framework ◽  
Mild Conditions ◽  
Metal Organic ◽  
Organic Framework

Here we demonstrate the synthesis of a macro–meso–microporous metal–organic framework for high-performance photocatalytic oxidation under mild conditions.

Air atmospheric photocatalytic oxidation by ultrathin C,N-TiO2 nanosheets

2021 ◽  
Vol 23 (3) ◽  
pp. 1165-1170
Author(s):  
Xiuyan Cheng ◽  
Jianling Zhang ◽  
Lifei Liu ◽  
Lirong Zheng ◽  
Fanyu Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Photocatalytic Oxidation ◽  
Redox Mediator ◽  
Co Catalyst ◽  
Mild Conditions ◽  
Tio2 Nanosheets

Here we propose the high-performance photocatalytic oxidation of thioanisole under mild conditions (air and 25 °C under sacrificial reagent-, co-catalyst- and redox mediator-free conditions) using ultrathin C,N-TiO2 nanosheets.

Superionic Lithium Intercalation through 2 nm x 2 nm Columns in the Crystallographic Shear Phase Nb18W8O69

2019 ◽  
Author(s):  
Kent Griffith ◽  
Clare Grey
Keyword(s):  
High Performance ◽  
Rate Capability ◽  
Block Size ◽  
Lithium Intercalation ◽  
Resonance Spectroscopy ◽  
Complex Metal Oxides ◽  
Battery Electrode ◽  
Crystallographic Shear ◽  
Battery Material ◽  
First Time

Nb18W8O69 (9Nb2O5×8WO3) is the tungsten-rich end-member of the Wadsley–Roth crystallographic shear (cs) structures within the Nb2O5–WO3 series. It has the largest block size of any known, stable Wadsley–Roth phase, comprising 5 ´ 5 units of corner-shared MO6 octahedra between the shear planes, giving rise to 2 nm ´ 2 nm blocks. Rapid lithium intercalation is observed in this new candidate battery material and 7Li pulsed field gradient nuclear magnetic resonance spectroscopy – measured in a battery electrode for the first time at room temperature – reveals superionic lithium conductivity. In addition to its promising rate capability, Nb18W8O69 adds a piece to the larger picture of our understanding of high-performance Wadsley–Roth complex metal oxides.

Development of an HPLC-UV Method for Quantification of Stattic

2019 ◽  
Vol 15 (6) ◽  
pp. 568-573
Author(s):  
Soheil Sedaghat ◽  
Ommoleila Molavi ◽  
Akram Faridi ◽  
Ali Shayanfar ◽  
Mohammad Reza Rashidi
Keyword(s):  
High Performance ◽  
Accurate Method ◽  
Plasma Samples ◽  
Promising Target ◽  
Relative Standard ◽  
Dimerization Inhibitor ◽  
Oncogenic Protein ◽  
First Time ◽  
Transcription 3

Background: Signal transducer and activator of transcription 3 (STAT3), an oncogenic protein found constitutively active in many types of human malignancies, is considered to be a promising target for cancer therapy. Objective: In this study for the first time, a simple and accurate method has been developed for the determination of a STAT3 dimerization inhibitor called stattic in aqueous and plasma samples. Methods: A reverse-phase high-performance liquid chromatography (RP-HPLC) composed of C18 column as stationary phase, and the mixture of acetonitrile (60%) and water (40%) as mobile phase with a UV detection at 215 nm were applied for quantification of stattic. The developed method was validated by Food and Drug Administration (FDA) guideline. Results: The method provided a linear range between 1-40 and 2.5-40 µg mL-1 for aqueous and plasma samples, respectively, with a correlation coefficient of 0.999. The accuracy (as recovery) of the developed method was found to be between 95-105% for aqueous medium and 85-115% for plasma samples. The precision (as relative standard deviation) for aqueous and plasma samples was less than 6% and 15%, respectively. The sensitivity of the developed method based on FDA guideline was 1 µg mL-1 for aqueous and 2.5 µg mL-1 for plasma samples. Conclusion: These results show that the established method is a fast and accurate quantification for stattic in aqueous and plasma samples.

scholarly journals Histochemical and Phytochemical Analysis of Lamium album subsp. album L. Corolla: Essential Oil, Triterpenes, and Iridoids

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4166
Author(s):  
Agata Konarska ◽  
Elżbieta Weryszko-Chmielewska ◽  
Anna Matysik-Woźniak ◽  
Aneta Sulborska ◽  
Beata Polak ◽  
...  
Keyword(s):  
Essential Oil ◽  
High Performance ◽  
Glandular Trichomes ◽  
Gas Chromatography Mass Spectrometry ◽  
Phytochemical Analysis ◽  
Lipophilic Compounds ◽  
Histochemical Tests ◽  
Microscopy Techniques ◽  
Trichome Types ◽  
First Time

The aim of this study was to conduct a histochemical analysis to localize lipids, terpenes, essential oil, and iridoids in the trichomes of the L. album subsp. album corolla. Morphometric examinations of individual trichome types were performed. Light and scanning electron microscopy techniques were used to show the micromorphology and localization of lipophilic compounds and iridoids in secretory trichomes with the use of histochemical tests. Additionally, the content of essential oil and its components were determined using gas chromatography-mass spectrometry (GC-MS). Qualitative analyses of triterpenes carried out using high-performance thin-layer chromatography (HPTLC) coupled with densitometric detection, and the iridoid content expressed as aucubin was examined with spectrophotometric techniques. We showed the presence of iridoids and different lipophilic compounds in papillae and glandular and non-glandular trichomes. On average, the flowers of L. album subsp. album yielded 0.04 mL/kg of essential oil, which was dominated by aldehydes, sesquiterpenes, and alkanes. The extract of the L. album subsp. album corolla contained 1.5 × 10−3 ± 4.3 × 10−4 mg/mL of iridoid aucubin and three triterpenes: oleanolic acid, β-amyrin, and β-amyrin acetate. Aucubin and β-amyrin acetate were detected for the first time. We suggest the use of L. album subsp. album flowers as supplements in human nutrition.

scholarly journals Nanostructured intermetallic InSb as a high-capacity and high-performance negative electrode for sodium-ion batteries

2021 ◽  
Author(s):  
Irshad Mohammad ◽  
Lucie Blondeau ◽  
Eddy Foy ◽  
Jocelyne Leroy ◽  
Eric Leroy ◽  
...  
Keyword(s):  
Intermetallic Compound ◽  
High Performance ◽  
High Capacity ◽  
Negative Electrode ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Negative Electrodes ◽  
First Time

Following the trends of alloys as negative electrodes for Na-ion batteries, the sodiation of the InSb intermetallic compound was investigated for the first time. The benefit of coupling Sb with...

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