Formation of ZnO@Cd(OH)2 core-shell nanoparticles by sol–gel method: An approach to modify surface chemistry for stable and enhanced green emission

Fe3O4/SiO2/TiO2core-shell nanoparticles were synthesized via a sol-gel method with the aid of sonication. Fe3O4nanoparticles were being encapsulated within discrete silica nanospheres, and a layer of TiO2shell was then coated directly onto each silica nanosphere. As-synthesized Fe3O4/SiO2/TiO2core-shell nanoparticles showed enhanced photocatalytic properties as evidenced by the enhanced photodegradation of methylene blue under UV light irradiation.

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Cytotoxicity of Thermoresponsive Core/Shell NixCo1-xFe2O4/PEG Nanoparticles Synthesized by Sol-gel Method

Journal of Physics D Applied Physics ◽

10.1088/1361-6463/abf78a ◽

2021 ◽

Author(s):

Amirhossein Esmaeilkhanian ◽

Fariborz Sharifianjazi ◽

Nader Parvin ◽

Mohammad Amin Koti

Keyword(s):

Sol Gel ◽

Core Shell ◽

Gel Method ◽

Sol Gel Method

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Synthesis of Calcium Phosphate/Alginate Core/Shell Nanoparticles (CaP@alginate) through Pre-Gel Method as a pH-Responsive Drug Carrier

Proceedings of the 5th Asian Particle Technology Symposium ◽

10.3850/978-981-07-2518-1_137 ◽

2012 ◽

Author(s):

Yung-He Liang ◽

Kevin C.-W. Wu

Keyword(s):

Calcium Phosphate ◽

Drug Carrier ◽

Core Shell ◽

Ph Responsive ◽

Shell Nanoparticles ◽

Gel Method ◽

Core Shell Nanoparticles

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Detection of 3,4-diaminotoluene based on Sr0.3Pb0.7TiO3/CoFe2O4 core/shell nanocomposite via an electrochemical approach

New Journal of Chemistry ◽

10.1039/d0nj01074j ◽

2020 ◽

Vol 44 (19) ◽

pp. 7941-7953 ◽

Cited By ~ 5

Author(s):

Ali B. Abou Hammad ◽

Amir Elzwawy ◽

A. M. Mansour ◽

M. M. Alam ◽

Abdullah M. Asiri ◽

...

Keyword(s):

Electrochemical Sensor ◽

Sol Gel ◽

Magnetic Nanocomposite ◽

Core Shell ◽

Selective Detection ◽

Gel Method ◽

Sol Gel Method ◽

Electrochemical Approach

We reported a scalable sol–gel method for the preparation of Sr0.3Pb0.7TiO3/CoFe2O4 core–shell magnetic nanocomposite with a finely controlled shell and evaluated its efficiency as an electrochemical sensor for the selective detection of 3,4-diaminotoluene.

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Structure and Up-Conversion Luminescence Properties of Er3+-Yb3+Co-Doped TiO2 Nanocrystals Prepared by Sol-Gel Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.66.167 ◽

2009 ◽

Vol 66 ◽

pp. 167-170 ◽

Cited By ~ 8

Author(s):

Zhen Zhong Zhang ◽

Ji Hong Zhang ◽

Wei Zhou ◽

Ming Xia Song ◽

Wei Li ◽

...

Keyword(s):

Titanium Tetrachloride ◽

Upconversion Luminescence ◽

Sol Gel ◽

Green Emission ◽

X Ray Diffraction ◽

Red Emission ◽

Gel Method ◽

X Ray ◽

Sol Gel Method ◽

Co Doped

Er3+/Yb3+ co-doped TiO2 nanocrystals were prepared by Sol-gel method in which titanium tetrachloride was adopted as the precursor. The structure, particle size, and optical properties of samples were characterized by X-ray diffraction(XRD), Field emission-Scanning Electron Microscopy(FE-SEM) and photoluminescence(PL) spectra. Er3+ concentration was fixed at 1.0mol%, and Yb3+ concentration was changed from 3 to 10mol%. Intense upconversion luminescence was observed when the samples were excited by 980nm laser. The dependence of upconversion luminescence on Yb3+ concentration was presented. The results show that the upconversion luminescence increases with the Yb3+ concentration and gets its peak at 5%. The ratio of red emission to green emission(R/G) was strikingly enhanced with the increase of Yb3+ concentration. Under the excitation of 980nm, the green emission in the range of 520-570nm (2H11/2, 4S3/2→4I15/2) and the red emission in the range of 640~690nm (4F9/2 →4I15/2) are both due to two photons process. The possible upconversion mechanism was discussed.

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