نتایج جستجو برای: emmett

تعداد نتایج: 1087  

Journal: :Chemistry 2015
Anjon Kumar Mondal Dawei Su Shuangqiang Chen Alison Ung Hyun-Soo Kim Guoxiu Wang

A mesoporous flake-like manganese-cobalt composite oxide (MnCo2O4) is synthesized successfully through the hydrothermal method. The crystalline phase and morphology of the materials are characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and Brunauer-Emmett-Teller methods. The flake-like MnCo2O4 is evaluated as the anode material fo...

2015
Xiaolong Deng Qiang Zhang Qinqin Zhao Lisha Ma Meng Ding Xijin Xu

Cu2O hierarchical nanostructures with different morphologies were successfully synthesized by a solvothermal method using copper (II) nitrate trihydrate (Cu(NO3)2⋅3H2O) and ethylene glycol (EG) as initial reagents. The obtained nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) specific surface area test, and UV-vis spe...

2015
Jie Ma Mingxuan Yang Fei Yu Jie Zheng

An environmentally benign and efficient hydrothermal reduction method was applied for the preparation of three-dimensional (3D) porous graphene hydrogel (GH) adsorbents. The physicochemical properties of GH granules were systematically characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectra and Brunauer-Emmett-Teller (BET) method. GH granules showed an ex...

Journal: :Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie 2016
Simona Popescu Ioana Lavinia Ardelean Dragoş Gudovan Marius Rădulescu Denisa Ficai Anton Ficai Bogdan Ştefan Vasile Ecaterina Andronescu

In this study, MCM-41 mesoporous silica nanoparticles (NPs) and MCM-41÷Fe3O4 mesoporous silica NPs were prepared by sol-gel method using CTAB (cetyltrimethylammonium bromide) as template and TEOS (tetraethyl orthosilicate) as silica precursor in order to use these materials as drug delivery system (DDS) for different biologically active agents. The MCM-41 and MCM-41÷Fe3O4 mesoporous silica NPs ...

Journal: :Journal of physics 2021

The activated carbon loaded with manganese (GAC-Mn) was prepared and optimized for the treatment of acid red wastewater. Scanning electron microscope-energy dispersive spectrometer (SEM-EDS), Brunner-Emmett-Teller surface area (Sbet) analysis results revealed that successfully on larger specific obtained. kinetics study indicated removal GAC-Mn followed pseudo-second-order model.

Journal: :iranian journal of catalysis 0
seyed reza azimi pirsaraei department of occupational health engineering, faculty of medical sciences, tarbiat modares university, p.o. box: 14115-111, tehran, iran. hasan asilian mahabadi department of occupational health engineering, faculty of medical sciences, tarbiat modares university, p.o. box: 14115-111, tehran, iran. ahmad jonidi jafari research center for environmental health technology, iran university of medical sciences, p.o box: 14665-354, tehran, iran.

the catalytic oxidation of toluene over copper oxide supported on natural diatomite was investigated. the catalyst was prepared by the wet impregnation method and characterized by using the brunauer emmett teller (bet), field emission scanning electron microscopy (fesem), x-ray diffraction (xrd), x-ray fluorescence (xrf) and temperature-programmed reduction (tpr) analysis. the highest catalytic ...

2013
Jarrett E. K. Byrnes Lars Gamfeldt Forest Isbell Jonathan S. Lefcheck John N. Griffin Andrew Hector Bradley J. Cardinale David U. Hooper Laura E. Dee J. Emmett Duffy

Investigating the relationship between biodiversity and ecosystemmultifunctionality: challenges and solutions Jarrett E. K. Byrnes*†, LarsGamfeldt, Forest Isbell, Jonathan S. Lefcheck, JohnN.Griffin, AndyHector, Bradley J. Cardinale, DavidU. Hooper, Laura E. Dee and J. Emmett Duffy National Center for Ecological Analysis and Synthesis, 735 State Street, Santa Barbara, CA 93101, USA; Department ...

2016
F. S. Helal

209 ABSTRACT: In the present study, different activated carbons were prepared from carbonized African beech wood sawdust by potassium hydroxide activation. The activated carbons were characterized by brunauer–emmett–teller, scanning electron microscope, fourier transform infrared spectroscopy, and thermogravimetric analyzer. The phenol adsorption capacity of the prepared carbons was evaluated. ...

Journal: :Dalton transactions 2010
Yong-Song Luo Xiao-Jun Dai Wei-Dong Zhang Yang Yang Chang Q Sun Shao-Yun Fu

Synthesis of metal molybdates (XMoO(4), X = Ca, Sr, Ba) have received much attention recently because of their interesting structural and luminescent properties. Here novel erythrocyte-like CaMoO(4) hierarchical nanostructures are synthesized via a simple surfactant-free hydrothermal route. The formation of the calcium molybdate erythrocytes is controllable through adjusting the fundamental exp...

Journal: :Journal of bacteriology 1964
J S LAYNE E J JOHNSON

Layne, Joseph S. (University of Mississippi School of Medicine, Jackson), and Emmett J. Johnson. Resistant properties of Azotobacter cysts induced in response to mineral deficiencies. J. Bacteriol. 88:956-959. 1964.-Cysts produced in response to mineral deficiencies, and apparently lacking the characteristic exine and intine, possess the same degree of resistance to heat, mechanical disruption,...

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