Carbon-doped ZnO submicron spheres functionalized with carboxylate groups and effect of dispersion stability in the colloidal system for high photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 104556-104562 ◽  
Author(s):  
JaeSoul Lee ◽  
Hyung-Seok Lim ◽  
Yong Soo Kang ◽  
Kyung-Do Suh
Keyword(s):  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Dispersion Stability ◽  
Colloidal System ◽  
New Approach ◽  
Carbon Doped ◽  
Photodegradation Efficiency ◽  
Carboxylate Groups ◽  
System P ◽  
Doped Zno

This paper describes a new approach to improve photodegradation efficiency using carbon-doped ZnO submicron spheres in a colloidal system.

scholarly journals Modified Sol-Gel Synthesis of Carbon Nanotubes Supported Titania Composites with Enhanced Visible Light Induced Photocatalytic Activity

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Quanjie Wang ◽  
Yanqing Wang ◽  
Baorong Duan ◽  
Mengmeng Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Photocatalytic Activity ◽  
Carbon Nanotube ◽  
Visible Light ◽  
Sol Gel ◽  
High Photocatalytic Activity ◽  
Raw Material ◽  
Tetrabutyl Titanate ◽  
Multiwalled Carbon ◽  
Photodegradation Efficiency

Multiwalled carbon nanotube (MWCNT) enhanced MWCNT/TiO2nanocomposites were synthesized by surface coating of carbon nanotube with mixed phase of anatase and rutile TiO2through a modified sol-gel approach using tetrabutyl titanate as raw material. The morphological structures and physicochemical properties of the nanocomposites were characterized by FT-IR, XRD, DTA-TG, TEM, and UV-Vis spectra. The results show that TiO2nanoparticles with size of around 15 nm are closely attached on the sidewall of MWCNT. The nanocomposites possess good absorption properties not only in the ultraviolet but also in the visible light region. Under irradiation of ultraviolet lamp, the prepared composites have the highest photodegradation efficiency of 83% within 4 hours towards the degradation of Methyl Orange (MO) aqueous solution. The results indicate that the carbon nanotubes supported TiO2nanocomposites exhibit high photocatalytic activity and stability, showing great potentials in the treatment of wastewater.

High photocatalytic activity of carbon doped TiO2 prepared by fast combustion of organic capping ligands

RSC Advances ◽  
2015 ◽  
Vol 5 (113) ◽  
pp. 93635-93643 ◽  
Author(s):  
Yijun Yang ◽  
Dawei Ni ◽  
Ye Yao ◽  
Yeteng Zhong ◽  
Ying Ma ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
High Photocatalytic Activity ◽  
Doped Tio2 ◽  
Carbon Doped ◽  
Conventional Methods ◽  
Organic Capping ◽  
Capping Ligands

Carbon doped TiO2 prepared by fast combustion of oleylamine ligands exhibit much higher photocatalytic activity for hydrogen production than those prepared by conventional methods.

One-pot synthesis of the visible light sensitive C-doped ZnO@g-C3N4 for high photocatalytic activity through Z-scheme mechanism

Optik ◽  
2019 ◽  
Vol 186 ◽  
pp. 34-40 ◽  
Author(s):  
Abdullah M. Alhanash ◽  
Khadija S. Al-Namshah ◽  
Sahar K. Mohamed ◽  
Mohamed S. Hamdy
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
High Photocatalytic Activity ◽  
One Pot ◽  
One Pot Synthesis ◽  
Doped Zno

scholarly journals Highly Active Rare-Earth-Metal La-Doped Photocatalysts: Fabrication, Characterization, and Their Photocatalytic Activity

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
S. Anandan ◽  
Y. Ikuma ◽  
V. Murugesan
Keyword(s):  
Photocatalytic Activity ◽  
High Surface ◽  
Sol Gel ◽  
Earth Metal ◽  
High Photocatalytic Activity ◽  
Highly Active ◽  
Photocatalytic Activities ◽  
Doped Zno ◽  
Photonic Efficiency ◽  
La Doped

Efficient La-doped TiO2photocatalysts were prepared by sol-gel method and extensively characterized by various sophisticated techniques. The photocatalytic activity of La-doped TiO2was evaluated for the degradation of monocrotophos (MCPs) in aqueous solution. It showed higher rate of degradation than pure TiO2for the light of wavelength of 254 nm and 365 nm. The rate constant of TiO2increases with increasing La loading and exhibits maximum rate for 1% La loading. The photocatalytic activities of La-doped TiO2are compared with La-doped ZnO; the reaction rate of the former is ~1.8 and 1.1 orders higher than the latter for the lights of wavelength 254 nm and 365 nm, respectively. The relative photonic efficiency of La-doped TiO2is relatively higher than La-doped ZnO and commercial photocatalysts. Overall, La-doped TiO2is the most active photocatalyst and shows high relative photonic efficiencies and high photocatalytic activity for the degradation of MCP. The enhanced photocatalytic activity of La-doped TiO2is mainly due to the electron trapping by lanthanum metal ions, small particle size, large surface area, and high surface roughness of the photocatalysts.

Synthesis and high photocatalytic activity of Eu-doped ZnO nanoparticles

2014 ◽  
Vol 40 (7) ◽  
pp. 10375-10382 ◽  
Author(s):  
Yanqing Zong ◽  
Zhe Li ◽  
Xingmin Wang ◽  
Jiantao Ma ◽  
Yi Men
Keyword(s):  
Photocatalytic Activity ◽  
Zno Nanoparticles ◽  
High Photocatalytic Activity ◽  
Doped Zno

scholarly journals MOF-derived Co/ZnO@silicalite-1 photocatalyst with high photocatalytic activity

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38519-38525 ◽  
Author(s):  
Xiaobing Yang ◽  
Juan Chen ◽  
Huixian Lai ◽  
Jiapeng Hu ◽  
Ming Fang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Porous Materials ◽  
High Photocatalytic Activity ◽  
Doped Zno ◽  
Metal Doped

Metal doped ZnO supported on porous materials have unique and highly attractive properties and have drawn worldwide attention.

Facile preparation of yttrium and aluminum co-doped ZnO via a sol–gel route for photocatalytic hydrogen production

2014 ◽  
Vol 2 (29) ◽  
pp. 11040-11044 ◽  
Author(s):  
Jingpei Huo ◽  
Liting Fang ◽  
Yaling Lei ◽  
Gongchang Zeng ◽  
Heping Zeng
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Sol Gel ◽  
High Photocatalytic Activity ◽  
Photocatalytic Hydrogen Production ◽  
Gel Method ◽  
Facile Preparation ◽  
Doped Zno ◽  
Co Doped ◽  
Excellent Stability

Yttrium and aluminum co-doped ZnO were successfully synthesized by the sol–gel method. The obtained products showed high photocatalytic activity for hydrogen production (5.71 mmol h−1 g−1), and exhibited excellent stability and recyclability.

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