نتایج جستجو برای: hydrothermal synthesis of cobalt disulfide nanostructures and adsorption kinetics

تعداد نتایج: 24084991  

Journal: :Nanoscale 2015
Ling Zhang Yuda Zhao Ziyuan Lin Fangyuan Gu Shu Ping Lau Li Li Yang Chai

Ag nanostructures are widely used in catalysis, energy conversion and chemical sensing. Morphology-tailored synthesis of Ag nanostructures is critical to tune physical and chemical properties. In this study, we develop a method for synthesizing the morphology-tailored Ag nanostructures in aqueous solution at a low temperature (45 °C). With the use of AgCl nanoparticles as the precursor, the gro...

Journal: :Physical chemistry chemical physics : PCCP 2011
Shudong Zhang Bo Shang Jinlong Yang Wensheng Yan Shiqiang Wei Yi Xie

The phase transition process from VO(2) (B) to VO(2) (A) was first observed through a mild hydrothermal approach, using hybrid density functional theory (DFT) calculations and crystallographic VO(2) topology analysis. All theoretical analyses reveal that VO(2) (A) is a thermodynamically stable phase and has a lower formation energy compared with the metastable VO(2) (B). For the first time, X-r...

Journal: :Hacettepe Journal of Biology and Chemistry 2022

Nanocomposites are formed by joining two or more materials, at least one of which must have a size in the nanometer range (1 nm -100 nm). In this study, cobalt ferrite-silver nanocomposite was prepared with green synthesis approach. The aim to combine magnetic properties cobalt-ferrite nanoparticles both antimicrobial and conductivity silver nanoparticles. Thus, material can be used for biologi...

Journal: : 2022

In this study, ZnO@Fe3O4composite nanostructures were synthesized using the hydrothermal method. X-ray diffraction analysis was performed for structural characterization of obtained with addition Fe3O4at different ratios, and no impurity peaks found. Scanning electron microscope (SEM) transmission (TEM) used morphological imaging. It understood that ZnO nanoparticles decorated around Fe3O4in mo...

Journal: :journal of safety, environment, and health research 0
tayebeh rahimi research center for environmental pollutants and department of environmental health engineering najmeh vaezi department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran. mohammad khazaei research center for environmental pollutants, department of environmental health engineering, qom university of medical sciences, qom, behnam vakili office of improvement on wastewater operation procedures, national water and wastewater engineering company hassan izanloo research center for environmental pollutants and department of environmental health engineering, qom university of medical sciences, qom, iran

the aim of this study is to investigate the nitrate adsorption on granular ferric hydroxide (gfh). the effect of factors such as initial concentration of nitrate, ph, contact time, and adsorbent mass were determined. the study was done in laboratory–scale in which synthetic nitrate solutions in a batch reactor were placed in contact with the adsorbent to model adsorption kinetics. it was found ...

Cobalt ferrite nano-powder have been obtained through a hydrothermal method with 2:1 molar ratio of Fe:Co without using any surfactant. X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to consider the structural and morphological properties of CoFe2O4 nano-particles. Also, EDAX spectroscopy applied to evaluate the chemical composition. Results demonstrated that 15 hr hyd...

Journal: :Physical chemistry chemical physics : PCCP 2011
Hua Wang Yusong Bai Qiong Wu Wei Zhou Hao Zhang Jinghong Li Lin Guo

Hierarchical TiO(2) nanostructures would be desirable for preparing dye-sensitized solar cells because of their large amount of dye adsorption and superior light harvesting efficiency, as well as efficient charge separation and transport properties. In this study, rutile TiO(2) nano-branched arrays grown directly on transparent conductive glass (FTO) were prepared by a facile two-step wet chemi...

In this work, we investigated synthesis, magnetic properties of silica coated metal ferrite, (CoFe2O4)/SiO2 and Manganese doped cobalt ferrite nanoparticles (MnxCo1-xFe2O4 with x= 0.02, 0.04 and 0.06)/SiO2 for possible biomedical application. All the ferrites nanoparticles were prepared by co-precipitation method using FeCl3.6H2O, CoCl2.6H2O and MnCl2.2H2O as precursors, and were silica coated ...

Journal: Nanochemistry Research 2019

The main function purpose of nanobiosensors is to sense a biologically specific material and the kind of sensing platform and doping engineering has been an emerging topic and plays an important role in monolayer molybdenum disulfide (mMoS2). In this paper, we theoretically reveal the electronic structures of mMoS2 doped by 3d transition metals. Furthermore, adsorption of nucleic acid [Adenine ...

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