Non-Noble Metallic Cu with Three Different Roles in Cu doped ZnO/Cu/g-C3N4 Heterostructure for Enhanced Z-Scheme Photocatalytic Activity

2021 ◽  
Author(s):  
Mohammed Abdullah Bajiri ◽  
Abdo Hezam ◽  
Namratha Keerthiraj ◽  
Basheer M. Al-Maswari ◽  
Halehatty S. Bhojya Naik ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metal Oxides ◽  
Hydrothermal Method ◽  
Co Catalyst ◽  
Doped Zno

Doping, co-catalyst, and Z-scheme configuration are three potential approaches to enhance the photocatalytic activity of metal oxides. Cu doped ZnO/Cu/g-C3N4 heterostructure is prepared using the calcination-hydrothermal method. The successful fabrication...

Hydrothermal Method Preparation of Flower-Like Ce-Doped ZnO as an Efficient Photocatalyst

2018 ◽  
Vol 281 ◽  
pp. 872-877
Author(s):  
Jian Ping Ai ◽  
Wei Xiu Liao ◽  
Shan Shan Luo ◽  
Tao Zhou ◽  
Li Hong Cheng ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Method ◽  
Uv Light ◽  
Low Cost ◽  
Hexagonal Wurtzite Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Infrared Spectrometer ◽  
Ft Ir ◽  
Doped Zno

Well-crystalline flower-like Ce-doped ZnO were synthesized by facile and low-cost hydrothermal method. The prepared samples were characterized by a variety of characterization techniques such as X-ray diffraction (XRD), Fourier Transform Infrared Spectrometer (FT-IR), UV-visible spectroscopy, scanning electron microscopy (SEM) combined with energy dispersive X-ray diffraction (EDX), to study the crystal structure, optical properties, surface morphology and chemical composition. It was observed from XRD and FT-IR results that synthesized powder had hexagonal wurtzite structure. The photocatalytic activities of the prepared samples were evaluated by photocatalytic degradation of methyl orange (MO) and Rhodamine B (RhB) under UV light irradiation. The results showed that the Ce-doped ZnO photocatalyst with 0.5% cerium exhibited highest photocatalytic activity compared to other samples. The enhanced photocatalytic activity could be attributed to inhibition of the electron-hole pair’s recombination.

Sunlight-driven enhanced photocatalytic activity of bandgap narrowing Sn-doped ZnO nanoparticles

2021 ◽  
Author(s):  
Nachimuthu Venkatesh ◽  
Santhan Aravindan ◽  
Karuppathevan Ramki ◽  
Govindhasamy Murugadoss ◽  
Rangasamy Thangamuthu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Zno Nanoparticles ◽  
Bandgap Narrowing ◽  
Doped Zno

scholarly journals Investigation of biological and photocatalytic activity of nanopowders metal oxides with nanosized silver coating

2021 ◽  
Vol 1954 (1) ◽  
pp. 012047
Author(s):  
S Yu Sokovnin ◽  
V G Il’ves ◽  
O A Malova ◽  
M A Kiseleva ◽  
M V Ulitko ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metal Oxides ◽  
Silver Coating

scholarly journals Real roles of perylene diimides for improving photocatalytic activity

RSC Advances ◽  
2020 ◽  
Vol 10 (39) ◽  
pp. 23024-23037 ◽  
Author(s):  
Fengxia Zhang ◽  
Wenjing Li ◽  
Tianyi Jiang ◽  
Xuemei Li ◽  
Yuanyuan Shao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrothermal Method ◽  
Perylene Diimides ◽  
Photodegradation Rate ◽  
Composite Photocatalysts ◽  
Visible Light Driven

Three novel visible-light-driven composite photocatalysts were synthesized by hydrothermal method. The effects of introducing PDIs with different structures into TiO2 were evaluated by assaying the photodegradation rate of methylene blue.

Photocatalytic Activity of Fe-Doped ZnO/Montmorillonite Nanocomposite for Degradation of Malachite Green

2015 ◽  
Vol 827 ◽  
pp. 19-24 ◽  
Author(s):  
Nur Afifah ◽  
Nadia Febiana Djaja ◽  
Rosari Saleh
Keyword(s):  
Photocatalytic Activity ◽  
Malachite Green ◽  
Organic Dyes ◽  
Uv Light ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Spin Resonance ◽  
Doped Zno ◽  
Co Precipitation

In this study, the photocatalytic activity of pure Fe- doped ZnO and Fe- doped ZnO/Montmorillonite nanocomposite has been investigated for the degradation of malachite green under UV light irradiation. Both photocatalysts were synthesized using co-precipitation method and characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, Fourier-transform infrared absorption, and electron spin resonance. The results showed that the photocatalytic efficiency is better in the presence of montmorillonite compared to pure Fe- doped ZnO. To detect the possible reactive species involved in degradation of organic dyes control experiments with introducing scavengers into the solution of organic dyes were carried out. It is found that electron plays an important role in the degradation of malachite green.

scholarly journals Photocatalytic activity of nanocrystalline TiO2(B) synthesized from titanium glycolate complex by hydrothermal method

2009 ◽  
Vol 117 (1363) ◽  
pp. 347-350 ◽  
Author(s):  
Kazuhiro YAMAMOTO ◽  
Hironori SHIMOITA ◽  
Koji TOMITA ◽  
Kazumi FUJITA ◽  
Makoto KOBAYASHI ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Method ◽  
Nanocrystalline Tio2 ◽  
Titanium Glycolate

The Preparation and Photocatalytic Activity of SWNTs Doped ZnO/TiO2 Compound Films

2010 ◽  
Vol 97-101 ◽  
pp. 1611-1615 ◽  
Author(s):  
Qing Wang ◽  
Xin Li Li ◽  
Wei Nie ◽  
Yong Mei Xia ◽  
Jian Feng Dai
Keyword(s):  
Photocatalytic Activity ◽  
Absorption Spectra ◽  
Sol Gel ◽  
Composite Films ◽  
Wavelength Region ◽  
Tio2 Films ◽  
X Ray Diffraction ◽  
Sol Gel Process ◽  
Doped Zno ◽  
Walled Carbon Nanotubes

The ZnO/TiO2 composite films were deposited over glass using spin coating technique by sol-gel process. Single-walled carbon nanotubes (SWNTs) were used to modify the ZnO/TiO2 films successfully in this paper. The structure and composition of the ZnO/TiO2 composite and SWNTs doped ZnO/TiO2 composite were characterized by X-ray diffraction (XRD). The morphology of samples was characterized by scanning electron microscopy (SEM). The photocatalytic activity was investigated by photocatalytic degradation of aqueous methyl orange under ultraviolet (UV) radiation. The UV-vis absorption spectra of the ZnO/TiO2 films and SWNTs doped ZnO/TiO2 films in the wavelength region 200~800 nm were obtained. The results indicate that the SWNTs addition can decrease the grain size of ZnO/TiO2, which can enhance the photocatalytic activity. UV-vis absorption spectra of SWNTs-ZnO/TiO2 showed obvious blue shifts compared with ZnO/TiO2. The optimal amount of doping SWNTs is 1% according to this research. The enhanced mechanism of the SWNTs for the photocatalytic activity in ZnO/TiO2 films was analyzed in this article.

Sign in / Sign up

Export Citation Format

Share Document