Synthesis and Characterization of Hollow Core-Shell ZrO2@void@BiVO4 Visible-Light Photocatalyst

Monoclinic scheelite BiVO4 was synthesized from a mixture of aqueous Bi(NO3)3 and NH4VO3 solutions by hydrothermal method. Then using successive coating of BiVO4 with a carbon layer and a ZrO2 layer followed by heat treatment to remove the carbon layer prepared a core-shell(ZrO2@void@BiVO4) nanoparticles with a void layer between the BiVO4 core and the ZrO2 shell. TG-DTA and IR suggest that BiVO4 was coated with ZrO2. TEM shows that there was a void space between the BiVO4 core and the ZrO2 shell. The samples were characterized by XRD and the peaks of ZrO2@void@BiVO4 suits well with the pure phase monoclinic scheelite BiVO4. And its visble-light photocatalytic activity was evaluated by the photodegradation of methylene blue(MB). The results indicated that the photocatalytic activity of ZrO2@void@BiVO4 is similar to that of pure phase BiVO4, which makes it can be used for preparing liquid-gas phase boundary visble-light photocatalyst.

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Synthesis and characterization of microporous hollow core-shell silica nanoparticles (HCSNs) of tunable thickness for controlled release of doxorubicin

Journal of Nanoparticle Research ◽

10.1007/s11051-018-4287-2 ◽

2018 ◽

Vol 20 (7) ◽

Cited By ~ 2

Author(s):

D. Deepika ◽

JagadeeshBabu PonnanEttiyappan

Keyword(s):

Controlled Release ◽

Silica Nanoparticles ◽

Synthesis And Characterization ◽

Core Shell ◽

Hollow Core

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Synthesis and Characterization of Pb@GaS Core–Shell Fullerene-Like Nanoparticles and Nanotubes

NANO ◽

10.1142/s1793292017500308 ◽

2017 ◽

Vol 12 (03) ◽

pp. 1750030 ◽

Cited By ~ 3

Author(s):

Olga Brontvein ◽

Lothar Houben ◽

Ronit Popovitz-Biro ◽

Moshe Levy ◽

Daniel Feuermann ◽

...

Keyword(s):

Synthesis And Characterization ◽

Formation Mechanisms ◽

Core Shell ◽

Hollow Core ◽

Shell Nanoparticles ◽

Hollow Nanostructures ◽

Strong Gradient ◽

Core Shell Nanoparticles ◽

High Reactor

New types of core–shell nanoparticles are reported: Pb@GaS fullerene-like and nanotubular structures, achieved via the continuously high reactor temperatures and ultra-hot strong-gradient annealing environments created by highly concentrated sunlight. Structural and chemical characterizations suggest a formation mechanism where vaporized Pb condenses into nanoparticles that are stabilized as they become covered by molten GaS, the ensuing crystallization of which creates the outer layers. Hollow-core GaS fullerene-like nanoparticles and nanotubes were also observed among the products, demonstrating that a single solar procedure can generate a variety of core–shell and hollow nanostructures. The proposed formation mechanisms can account for their relative abundance and the characterization data.

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Synthesis and Characterization of Silver/Titanium dioxide Core-Shell Nanoparticles

Borneo Journal of Resource Science and Technology ◽

10.33736/bjrst.252.2013 ◽

1970 ◽

Vol 3 (1) ◽

pp. 21-24

Author(s):

Suk Fun Chin ◽

Suh Cem Pang ◽

Freda Emmanuel Idely Dom

Keyword(s):

Photocatalytic Activity ◽

Ag Nanoparticles ◽

Sol Gel ◽

Model Reaction ◽

Synthesis And Characterization ◽

Core Shell ◽

Particle Sizes ◽

Shell Nanoparticles ◽

Core Shell Nanoparticles

Silver nanoparticles (AgNPs) with mean diameter of 150 nm were synthesized by using an aqueous-basedreduction method. Ascorbic acid and sodium hydroxide (NaOH) were used as a reducing agent and as acatalyst, respectively. These AgNPs were subsequently coated with a layer of TiO2 to form Ag/TiO2 core-shellnanoparticles by using a sol-gel method. The particle sizes and morphology of Ag/TiO2 core-shellnanoparticles were characterized using scanning electron microscopy (SEM) and transition electronmicroscopy (TEM). The photocatalytic activity of the Ag/TiO2 core-shell nanoparticles were evaluated basedon the degradation of methylene blue (MB) as the model reaction. The TiO2 coating has resulted in theenhanced photocatalytic activity of Ag nanoparticles as compared to bare Ag nanoparticles.

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Synthesis and characterization of a core–shell BiVO4@g-C3N4 photo-catalyst with enhanced photocatalytic activity under visible light irradiation

RSC Advances ◽

10.1039/c6ra27766g ◽

2017 ◽

Vol 7 (14) ◽

pp. 8167-8177 ◽

Cited By ~ 47

Author(s):

Zisheng Zhang ◽

Miao Wang ◽

Wenquan Cui ◽

Hong Sui

Keyword(s):

Photocatalytic Activity ◽

Visible Light ◽

Visible Light Irradiation ◽

Light Irradiation ◽

Synthesis And Characterization ◽

Core Shell ◽

Photo Catalyst

Novel core–shell structured ellipsoid-like BiVO4@g-C3N4 composites, with different amounts of g-C3N4, have been successfully prepared by a simple hydrothermal-chemisorption method.

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