Uniform deposition of water-soluble CdS quantum dots on TiO2 nanotube arrays by cyclic voltammetric electrodeposition: Effectively prevent aggregation and enhance visible-light photocatalytic activity

2013 ◽  
Vol 108 ◽  
pp. 296-303 ◽  
Author(s):  
Xiaojiao Zhang ◽  
Shiwei Lin ◽  
Jianjun Liao ◽  
Nengqian Pan ◽  
Danhong Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Water Soluble ◽  
Nanotube Arrays ◽  
Cds Quantum Dots ◽  
Cyclic Voltammetric ◽  
Visible Light Photocatalytic Activity ◽  
Uniform Deposition ◽  
Visible Light Photocatalytic

scholarly journals Visible-Light Photocatalytic Activity of N-Doped TiO2Nanotube Arrays on Acephate Degradation

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Xinlei Zhang ◽  
Juan Zhou ◽  
Yufen Gu ◽  
Ding Fan
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Nanotube Arrays ◽  
Optical Absorption Edge ◽  
X Ray ◽  
Visible Light Photocatalytic Activity ◽  
Uv Visible ◽  
Anodic Oxidation Method ◽  
Visible Light Photocatalytic ◽  
Nitrogen Doped Titanium Dioxide

Highly ordered nitrogen-doped titanium dioxide (N-doped TiO2) nanotube arrays were prepared by anodic oxidation method and then annealed in a N2atmosphere to obtain N-doped TiO2nanotube arrays. The samples were characterized with scanning electron microscope (SEM), X-ray powder diffraction (XRD), X-ray photoelectron spectrum (XPS), and UV-visible spectrophotometry (UV-vis) spectrum. Degradation of the insecticide acephate under the visible light was used as a model to examine the visible-light photocatalytic activity of N-doped TiO2nanotube arrays. The results show that N type doping has no notable effects on the morphology and structure of TiO2nanotube arrays. After N type doping, the N replaces a small amount of O in TiO2, forming an N–Ti–O structure. This shifts the optical absorption edge and enhances absorption of the visible light. N-doped TiO2nanotube arrays subjected to annealing at 500°C in N2atmosphere show the strongest photocatalytic activity and reach a degradation rate of 84% within 2 h.

Preparation of CdS and Bi2S3 quantum dots co-decorated perovskite-type KNbO3 ternary heterostructure with improved visible light photocatalytic activity and stability for phenol degradation

2018 ◽  
Vol 47 (42) ◽  
pp. 15232-15245 ◽  
Author(s):  
Beata Bajorowicz ◽  
Ewa Kowalska ◽  
Joanna Nadolna ◽  
Zhishun Wei ◽  
Maya Endo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Quantum Dot ◽  
Visible Light ◽  
Phenol Degradation ◽  
Hydrothermal Route ◽  
Visible Light Photocatalytic Activity ◽  
Perovskite Type ◽  
Visible Light Photocatalytic

A combination of the hydrothermal route with a linker assisted attachment method was used to obtain efficient CdS/Bi2S3 quantum dot-decorated perovskite type KNbO3.

Electrochemical synthesis of perovskite LaFeO3 nanoparticle-modified TiO2 nanotube arrays for enhanced visible-light photocatalytic activity

2019 ◽  
Vol 43 (42) ◽  
pp. 16506-16514 ◽  
Author(s):  
Cheng Gong ◽  
Zeyang Zhang ◽  
Sheng Lin ◽  
Zhi Wu ◽  
Lan Sun ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Electrochemical Synthesis ◽  
Electrochemical Method ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Visible Light Photocatalytic Activity ◽  
Photochemical Stability ◽  
Visible Light Photocatalytic

LaFeO3/TiO2 NTAs was synthesized by an electrochemical method and exhibited enhanced visible-light photocatalytic activity and excellent photochemical stability.

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