Construction of AgCl/Ag/BiOCl with a concave-rhombicuboctahedron core–shell hierarchitecture and enhanced photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 84738-84747 ◽  
Author(s):  
Zhikun Xu ◽  
Shuang-Yan Lin
Keyword(s):  
Photocatalytic Activity ◽  
Room Temperature ◽  
High Efficiency ◽  
Core Shell ◽  
Vapor Diffusion ◽  
One Step

Concave-rhombicuboctahedron structure Ag/AgCl/BiOCl heterojunction photocatalyst with high efficiency and stability is prepared through a simple one-step vapor diffusion strategy at room temperature without template or any additives.

High-efficiency photocatalytic activity of type II SnO/Sn3O4 heterostructures via interfacial charge transfer

CrystEngComm ◽  
2014 ◽  
Vol 16 (30) ◽  
pp. 6841-6847 ◽  
Author(s):  
Weiwei Xia ◽  
Haibo Wang ◽  
Xianghua Zeng ◽  
Jie Han ◽  
Jun Zhu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Large Scale ◽  
High Efficiency ◽  
Hollow Microspheres ◽  
Type Ii ◽  
Hydrothermal Route ◽  
Interfacial Charge Transfer ◽  
One Step ◽  
Interfacial Charge

Flower-like hollow microspheres were synthesized on a large scale using a one-step hydrothermal route.

scholarly journals Synthesis and Photocatalytic Activity of Magnetically Recoverable Core-Shell Nanoparticles

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Zhen Peng ◽  
Hua Tang ◽  
Yao Tang ◽  
Ke Fu Yao ◽  
Hong Hong Shao
Keyword(s):  
Photocatalytic Activity ◽  
High Efficiency ◽  
Sol Gel ◽  
High Photocatalytic Activity ◽  
Core Shell ◽  
Oily Wastewater ◽  
Strong Response ◽  
Shell Nanoparticles ◽  
Oil Concentration ◽  
Core Shell Nanoparticles

TiO2/SiO2/Fe3O4(TSF) core-shell nanoparticles with good photocatalytic activity that are capable of fast magnetic separation have been successfully prepared by chemical coprecipitation and two-step sol-gel process. The as-prepared TSF nanoparticles were calcined at high temperature in order to transform the amorphous titanium dioxide into a photoactive crystalline phase. The calcined nanoparticles are composed of a Fe3O4core with a strong response to external magnetic fields, a SiO2intermediary layer, and a TiO2outshell. Vibration sample magnetometer (VSM) analysis confirms the superparamagnetism of calcined nanoparticles, which can enhance the recoverable properties of the novel photocatalyst. When the TiO2/SiO2/Fe3O4core-shell nanoparticles are added to the crude oily wastewater, they exhibit high photocatalytic activity in the degradation of crude oily wastewater. The oil concentration could be reduced to lower than 30 ppm within 20 minutes for the case of initial oil concentration less than 350 ppm. It has been found that the TSF nanoparticles could be easily separated from the wastewater and withdrawn by using an external magnetic field. The recovered TSF nanoparticles possess high efficiency in the degradation of crude oily wastewater even after three times successive reuse. The present results indicate that TSF core-shell nanoparticles possess great application perspectives in the degradation of crude oily wastewater.

Design of visible-light-response core–shell Fe2O3/CuBi2O4 heterojunctions with enhanced photocatalytic activity towards the degradation of tetracycline: Z-scheme photocatalytic mechanism insight

2018 ◽  
Vol 5 (12) ◽  
pp. 3148-3154 ◽  
Author(s):  
Ming-yang Li ◽  
Yu-bin Tang ◽  
Wei-long Shi ◽  
Fang-yan Chen ◽  
Yu Shi ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrothermal Method ◽  
Light Response ◽  
Core Shell ◽  
Photocatalytic Mechanism ◽  
Visible Light Response ◽  
One Step

Core–shell Fe2O3/CuBi2O4 heterojunction photocatalysts with enhanced photocatalytic activity were fabricated through one-step hydrothermal method.

One-step synthesis of ZnS@MoS2 core–shell nanostructure for high efficiency photocatalytic degradation of tetracycline

2020 ◽  
Vol 44 (2) ◽  
pp. 472-477 ◽  
Author(s):  
Kejie Zhang ◽  
Wei Meng ◽  
Shouyu Wang ◽  
Hao Mi ◽  
Lei Sun ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Hydrothermal Method ◽  
High Efficiency ◽  
Core Shell ◽  
Facile Hydrothermal Method ◽  
One Step

Four kinds of ZnS@MoS2 nanocomposite photocatalysts were successfully prepared via a facile hydrothermal method.

scholarly journals High-efficiency CdTe/CdS core/shell nanocrystals in water enabled by photo-induced colloidal hetero-epitaxy of CdS shelling at room temperature

Nano Research ◽  
2015 ◽  
Vol 8 (7) ◽  
pp. 2317-2328 ◽  
Author(s):  
Hakimeh Zare ◽  
Maziar Marandi ◽  
Somayeh Fardindoost ◽  
Vijay Kumar Sharma ◽  
Aydan Yeltik ◽  
...  
Keyword(s):  
Room Temperature ◽  
High Efficiency ◽  
Core Shell

The shell matters: one step synthesis of core–shell silicon nanoparticles with room temperature ultranarrow emission linewidth

2020 ◽  
Vol 222 ◽  
pp. 135-148 ◽  
Author(s):  
Anna Fucikova ◽  
Ilya Sychugov ◽  
Jan Linnros
Keyword(s):  
Thin Shell ◽  
Silicon Nanocrystals ◽  
Room Temperature ◽  
Silicon Nanoparticles ◽  
Core Shell ◽  
One Step

Here we present a one-step synthesis that provides silicon nanocrystals with a thin shell composed of a ceramic-like carbonyl based compound, embedded in a porous organosilicon film.

scholarly journals Simple Synthesis and Growth Mechanism of Core/Shell CdSe/SiOxNanowires

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Guozhang Dai ◽  
Shengyi Yang ◽  
Min Yan ◽  
Qiang Wan ◽  
Qinglin Zhang ◽  
...  
Keyword(s):  
Growth Mechanism ◽  
Equilateral Triangle ◽  
Room Temperature ◽  
Amorphous Layer ◽  
Core Shell ◽  
Cdse Core ◽  
The Core ◽  
Key Factor ◽  
One Step ◽  
Band Transition

Core-shell-structured CdSe/SiOxnanowires were synthesized on an equilateral triangle Si (111) substrate through a simple one-step thermal evaporation process. SEM, TEM, and XRD investigations confirmed the core-shell structure; that is, the core zone is single crystalline CdSe and the shell zone isSiOxamorphous layer and CdSe core was grown along (001) direction. Two-stage growth process was present to explain the growth mechanism of the core/shell nanwires. The silicon substrate of designed equilateral triangle providing the silicon source is the key factor to form the core-shell nanowires, which is significant for fabrication of nanowire-core sheathed with a silica system. The PL of the product studied at room temperature showed two emission bands around 715 and 560 nm, which originate from the band-band transition of CdSe cores and the amorphousSiOxshells, respectively.

scholarly journals Synthesis and Structural Characterization of Al2O3-Coated MoS2Spheres for Photocatalysis Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
S. V. Prabhakar Vattikuti ◽  
Chan Byon
Keyword(s):  
Photocatalytic Activity ◽  
Precursor Solution ◽  
Core Shell ◽  
Promising Candidate ◽  
Facile Hydrothermal Method ◽  
Dta Analysis ◽  
One Step ◽  
The Stability ◽  
Insight Into

This paper reports the synthesis of novel monodisperse Al2O3-coated molybdenum disulfide nanospheres (i.e., core-shell structures) using a one-step facile hydrothermal method. XPS analysis confirmed the purity and stable structure of the Al2O3-coated MoS2nanospheres. A possible growth mechanism of the core-shell structure is also reported, along with their influence on the photodegradation process of rhodamine B (RhB). The Al2O3-coated MoS2nanospheres demonstrate good photocatalytic activity and chemical stability compared to MoS2spheres. TG-DTA analysis provided insight into the decomposition process of the precursor solution and the stability of the nanoparticles. The enhanced photocatalytic activity makes the Al2O3-coated MoS2nanospheres a promising candidate as a photocatalyst that could be used in place of traditional Al2O3/MoS2photocatalyst for the removal of pollutants from waste water.

Fast and facile one-step synthesis of monodisperse thermo-responsive core–shell microspheres and applications

2015 ◽  
Vol 6 (37) ◽  
pp. 6698-6708 ◽  
Author(s):  
Jianbo Tan ◽  
Mingguang Yu ◽  
Xin Rao ◽  
Jianwen Yang ◽  
Zhaohua Zeng
Keyword(s):  
Dispersion Polymerization ◽  
Room Temperature ◽  
Single Step ◽  
Core Shell ◽  
One Step

Highly monodisperse PMMA microspheres covered with a thermo-responsive shell were synthesized in a single step by means of photoinitiated RAFT dispersion polymerization at room temperature.

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