A biocompatible poly(N-vinylimidazole)-dot with both strong luminescence and good catalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2141-2148 ◽  
Author(s):  
Bin Wang ◽  
Hua-Ji Liu ◽  
Yu Chen
Keyword(s):  
Catalytic Activity ◽  
Carbon Source ◽  
Hydrothermal Method ◽  
Luminescence Property ◽  
Sole Carbon Source ◽  
Simple Hydrothermal Method ◽  
Strong Luminescence ◽  
Good Catalytic Activity

A PVIm-dot was prepared through a simple hydrothermal method using PVIm as a sole carbon source without additives, which had both luminescence property and good catalytic activity.

Graphene-induced hierarchical mesoporous MgO for the Claisen–Schmidt condensation reaction

2019 ◽  
Vol 43 (12) ◽  
pp. 4698-4705 ◽  
Author(s):  
Xiaoxia Qi ◽  
Xirui Yan ◽  
Wencai Peng ◽  
Jianshu Zhang ◽  
Yanbin Tong ◽  
...  
Keyword(s):  
Particle Size ◽  
Catalytic Activity ◽  
Hydrothermal Method ◽  
Magnesium Oxide ◽  
Condensation Reaction ◽  
Regeneration Ability ◽  
Crystal Face ◽  
Simple Hydrothermal Method ◽  
Channel Distribution ◽  
Good Catalytic Activity

Multistage mesoporous magnesium oxide prepared by a simple hydrothermal method has an ideal particle size, channel distribution, active crystal face, good catalytic activity and regeneration ability.

Controlled synthesis of Bi25FeO40 with different morphologies: growth mechanism and enhanced photo-Fenton catalytic properties

2017 ◽  
Vol 46 (32) ◽  
pp. 10586-10593 ◽  
Author(s):  
Wenda Ji ◽  
Mingmeng Li ◽  
Gaoke Zhang ◽  
Pei Wang
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Method ◽  
Growth Mechanism ◽  
Catalytic Properties ◽  
Controlled Synthesis ◽  
Simple Hydrothermal Method

Bi25FeO40 microtetrahedra, microcubes and microspheres were synthesized via a simple hydrothermal method and the microcubes showed enhanced photo-Fenton catalytic activity.

l-Lysine mediated synthesis of platinum nanocuboids and their electrocatalytic activity towards ammonia oxidation

2014 ◽  
Vol 2 (42) ◽  
pp. 17883-17888 ◽  
Author(s):  
Geng-tao Fu ◽  
Chang Liu ◽  
Rui Wu ◽  
Yu Chen ◽  
Xiao-shu Zhu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Method ◽  
Electrocatalytic Activity ◽  
Ammonia Oxidation ◽  
Simple Hydrothermal Method

Pt-nanocuboids were synthesized by a simple hydrothermal method with the assistance of l-lysine, exhibiting enhanced catalytic activity towards ammonia oxidation.

Highly active and durable platinum-lead bimetallic alloy nanoflowers for formic acid electrooxidation

Nanoscale ◽  
2015 ◽  
Vol 7 (11) ◽  
pp. 4894-4899 ◽  
Author(s):  
Mingxing Gong ◽  
Fumin Li ◽  
Zhigang Yao ◽  
Suqi Zhang ◽  
Jingwen Dong ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Formic Acid ◽  
Hydrothermal Method ◽  
Simple Hydrothermal Method ◽  
Highly Active ◽  
Bimetallic Alloy ◽  
Platinum Lead ◽  
Formic Acid Electrooxidation

Pt84Pb16 bimetallic alloy nanoflowers were synthesized by a simple hydrothermal method and exhibit an enhanced catalytic activity towards formic acid electrooxidation.

Improved catalytic activity of PrMO3 (M = Co and Fe) perovskites: synthesis of thermally stable nanoparticles by a novel hydrothermal method

2015 ◽  
Vol 39 (3) ◽  
pp. 2342-2348 ◽  
Author(s):  
Suresh Kumar Megarajan ◽  
Sadhana Rayalu ◽  
Maiko Nishibori ◽  
Nitin Labhsetwar
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Method ◽  
Thermally Stable ◽  
Simple Hydrothermal Method ◽  
Cyano Complexes

A simple hydrothermal method was used to synthesize nanoperovskites using metal cyano complexes as precursors.

High resolution electron microscopy of lanthanum phosphate crystals

1978 ◽  
Vol 36 (1) ◽  
pp. 274-275
Author(s):  
J. C. Wheatley ◽  
J. M. Cowley
Keyword(s):  
Electron Microscopy ◽  
Catalytic Activity ◽  
High Resolution ◽  
Petroleum Industry ◽  
High Resolution Electron Microscopy ◽  
Lanthanum Phosphate ◽  
Good Catalyst ◽  
Resolution Electron ◽  
Good Catalytic Activity ◽  
Physical And Chemical

Rare-earth phosphates are of particular interest because of their catalytic properties associated with the hydrolysis of many aromatic chlorides in the petroleum industry. Lanthanum phosphates (LaPO4) which have been doped with small amounts of copper have shown increased catalytic activity (1). However the physical and chemical characteristics of the samples leading to good catalytic activity are not known.Many catalysts are amorphous and thus do not easily lend themselves to methods of investigation which would include electron microscopy. However, the LaPO4, crystals are quite suitable samples for high resolution techniques.The samples used were obtained from William L. Kehl of Gulf Research and Development Company. The electron microscopy was carried out on a JEOL JEM-100B which had been modified for high resolution microscopy (2). Standard high resolution techniques were employed. Three different sample types were observed: 669A-1-5-7 (poor catalyst), H-L-2 (good catalyst) and 27-011 (good catalyst).

Nitrogen-doped carbon dots from Hutai-8 grape skin and their application in Hg2+ detection

2020 ◽  
Vol 16 ◽  
Author(s):  
Pan Zhang ◽  
Shun-Sheng Zhao ◽  
JiaJia Wang ◽  
Xiang Rong Liu
Keyword(s):  
Heavy Metal ◽  
Carbon Source ◽  
Fluorescence Quenching ◽  
Hydrothermal Method ◽  
Water Samples ◽  
Carbon Dots ◽  
Mercury Ions ◽  
Grape Skin ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Background: In recent years, environmental pollution and heavy metal pollution caused by rapid urbanization and industrialization have become increasingly serious. Among them, mercury (II) ion (Hg2+) is one of the highly toxic heavy metal ions, and its pollution comes from various natural resources and human activities. Therefore, people attach great importance to the development of analytical methods for effective analysis and sensitive detection of Hg2+ . Objective: Using grape skin as a green and environmental friendly carbon source, to synthesize fluorescent carbon dots, and try to apply them to the detect the concentration of Hg2+ in water. Method: Using "Hutai No. 8" grape skin as carbon source, fluorescent carbon dots were synthesized by one-step hydrothermal method. Structure and fluorescent properties of the carbon dots were tested using TEM, XPS, XRD and other characterization instruments, and their utilization on detection of mercury ions in the actual water samples was explored. Results: The CDs had a particle size of about 4.8 nm and a spherical shape. There are N-H, C-N, C=O and other functional groups on the surface. It was found that Hg2+ has obvious fluorescence quenching effect on CDs, and thus CDs fluorescence quenching method to detect the concentration Hg2+ was established, and the detection limit is 3.7 μM, which could be applied to test the concentration of Hg2+ in water samples. Conclusion: Using grape skin as carbon source, fluorescent carbon dots were successfully synthesized by hydrothermal method. Carbon dots were used to detect mercury ions in water, and a method for detecting mercury ions in actual water samples was established.

scholarly journals Pandrug-resistant Pseudomonas sp. expresses New Delhi metallo-β-lactamase-1 and consumes ampicillin as sole carbon source

2020 ◽  
Author(s):  
Vivek Kumar Ranjan ◽  
Shriparna Mukherjee ◽  
Subarna Thakur ◽  
Krutika Gupta ◽  
Ranadhir Chakraborty
Keyword(s):  
Carbon Source ◽  
Sole Carbon Source ◽  
New Delhi ◽  
Pseudomonas Sp

scholarly journals CO Oxidation Efficiency and Hysteresis Behavior over Mesoporous Pd/SiO2 Catalyst

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 131 ◽  
Author(s):  
Rola Mohammad Al Soubaihi ◽  
Khaled Mohammad Saoud ◽  
Myo Tay Zar Myint ◽  
Mats A. Göthelid ◽  
Joydeep Dutta
Keyword(s):  
Carbon Monoxide ◽  
Catalytic Activity ◽  
Co Oxidation ◽  
Active Sites ◽  
Bond Activation ◽  
Dissociative Adsorption ◽  
High Catalytic Activity ◽  
Good Catalytic Activity ◽  
Pretreatment Conditions ◽  
Oxidation Efficiency

Carbon monoxide (CO) oxidation is considered an important reaction in heterogeneous industrial catalysis and has been extensively studied. Pd supported on SiO2 aerogel catalysts exhibit good catalytic activity toward this reaction owing to their CO bond activation capability and thermal stability. Pd/SiO2 catalysts were investigated using carbon monoxide (CO) oxidation as a model reaction. The catalyst becomes active, and the conversion increases after the temperature reaches the ignition temperature (Tig). A normal hysteresis in carbon monoxide (CO) oxidation has been observed, where the catalysts continue to exhibit high catalytic activity (CO conversion remains at 100%) during the extinction even at temperatures lower than Tig. The catalyst was characterized using BET, TEM, XPS, TGA-DSC, and FTIR. In this work, the influence of pretreatment conditions and stability of the active sites on the catalytic activity and hysteresis is presented. The CO oxidation on the Pd/SiO2 catalyst has been attributed to the dissociative adsorption of molecular oxygen and the activation of the C-O bond, followed by diffusion of adsorbates at Tig to form CO2. Whereas, the hysteresis has been explained by the enhanced stability of the active site caused by thermal effects, pretreatment conditions, Pd-SiO2 support interaction, and PdO formation and decomposition.

Electrostatic repulsion strategy for highly selective and sensitive “switch–on” fluorescence sensor of ascorbic acid based on the cysteamine-coated CdTe quantum dots and cerium (IV)

2021 ◽  
Author(s):  
Yifei Guo ◽  
Jingjing Du ◽  
Jianjun Li ◽  
Ran Yang ◽  
Peter B. de Harrington ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ascorbic Acid ◽  
Hydrothermal Method ◽  
Cadmium Chloride ◽  
Fluorescence Sensor ◽  
Cdte Quantum Dots ◽  
Electrostatic Repulsion ◽  
Functional Monomer ◽  
Simple Hydrothermal Method ◽  
Cdte Qds

In this work, cysteamine-coated CdTe quantum dots (CA-CdTe QDs) were synthesized by a simple hydrothermal method employing cadmium chloride as the cadmium source and cysteamine hydrochloride as the functional monomer....

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