One-step synthesis, electronic structure, and photocatalytic activity of earth-abundant visible-light-driven FeAl2O4

2017 ◽  
Vol 19 (14) ◽  
pp. 9392-9401 ◽  
Author(s):  
Hui-Ying Mu ◽  
Fa-Tang Li ◽  
Xing-Tao An ◽  
Rui-Hong Liu ◽  
Yi-Lei Li ◽  
...  

An inexpensive FeAl2O4 photocatalyst is developed via one-step synthesis and its electronic structure is given for the first time.

2017 ◽  
Vol 41 (9) ◽  
pp. 3432-3442 ◽  
Author(s):  
Mega Joy ◽  
A. Peer Mohamed ◽  
K. G. K. Warrier ◽  
U. S. Hareesh

The MoS2/ZnS binary heterojunctions obtained by a facile one-step hydrothermal route is competent to retrench the forbidden energy gap by creating sulfur vacancies. The tailoring of the lattice parameters of sulfides for interfacial charge transfer through the heterojunctions enhanced photocatalytic activity.


RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7518-7522 ◽  
Author(s):  
YuanYou Wang ◽  
SuoJin Chen ◽  
DangQin Jin ◽  
AiQin Gong ◽  
XueJiao Xu ◽  
...  

Active carbon/BiOI microspheres have promising applications as an efficient visible-light photocatalyst for the treatment of Cr(vi)-polluted water.


2006 ◽  
Vol 45 ◽  
pp. 779-786
Author(s):  
S.J. Hwang ◽  
T.W. Kim

We have synthesized for the first time efficient visible light active photocatalysts of porous MOx-Ti1.83O4 (M = Ni, Cr) heterostructure through an exfoliation-restacking route. XRD, SEM, TEM, and XAS results reveal that the titanate nanosheets and the nanosized metal oxide particles are well ordered in layer-by-layer way. N2 adsorption-desorption isotherm and diffuse UV-vis spectroscopic analyses demonstrate that the present nanohybrids have a large surface area (~190-240 m2/g) and a narrow bandgap (~1.6-2.4 eV), which are ascribable to the formation of porous structure and a coupling of the wide bandgap titanate and the narrow bandgap metal oxide species, respectively. These nanohybrids show an enhanced photocatalytic activity to effectively decompose organic compounds under the irradiation of visible light. The present results highlight that the exfoliation-restacking route can provide a very powerful way of developing novel heterostructured materials with efficient visible light driven photocatalytic activity.


2020 ◽  
Vol 20 (5) ◽  
pp. 3053-3059 ◽  
Author(s):  
Zhenzhao Pei ◽  
Heng Jia ◽  
Yulong Zhang ◽  
Pei Wang ◽  
Yabao Liu ◽  
...  

Eu/BiVO4 photocatalyst was synthesized by a facile one-step hydrothermal method. The structures and morphologies of Eu/BiVO4 photocatalysts were investigated by XRD, SEM and FT-IR and their photocatalytic activity was evaluated by the degradation of tetracycline hydrochloride (TCH) under the visible light irradiation. From the photocatalytic activity test, 1% Eu/BiVO4 displayed more superior photodegradation efficiency with 91.4% degradation efficiency of TCH in 150 min by contrast with 77.3% degradation rate of pure BiVO4. The mechanism has been explored that h+ is the primary active species, and ·OH is a secondary active substance in the photocatalytic process.


2013 ◽  
Vol 702 ◽  
pp. 51-55
Author(s):  
Rahmatollah Rahimi ◽  
Masoumeh Mahjoub Moghaddas ◽  
Solmaz Zargari

For the first time antimony vanadium oxide-TiO2(SbV-T) nanocomposite was synthesized via sol-gel method to improve the photocatalytic efficiency of TiO2. The samples were characterized by FT-IR, XRD, SEM, EDX, and DRS. To investigate the photocatalytic activity of the samples, the photodegradation of methyl orange was carried out under visible light irradiation with pure TiO2, SbVO4, and SbVO4-TiO2nanocomposite. The SbV-T photocatalyst exhibited higher visible light driven photocatalytic efficiency to degrade MO dye. Furthermore the effect of SbVO4 and cationic vacancies in the photocatalytic activity of the SbV-T sample are described.


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