Enhanced photocatalytic properties of biomimetic Ag/AgCl heterostructures

RSC Advances ◽  
2014 ◽  
Vol 4 (60) ◽  
pp. 31795-31798 ◽  
Author(s):  
Hongyan Hu ◽  
Zhengbo Jiao ◽  
Gongxuan Lu ◽  
Jinhua Ye ◽  
Yingpu Bi
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Organic Contaminants ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
High Yield ◽  
Green Leaves ◽  
Photocatalytic Activities ◽  
Ag Nanowires ◽  
Natural Architecture

Hierarchical Ag/AgCl hetero-structures have been fabricated in high-yield by copying the natural architecture of a branch with green leaves, and exhibit higher photocatalytic activities than Ag/AgCl nanowires, AgCl nanoparticles, Ag nanowires, and N-doped TiO2 for the degradation of organic contaminants under visible light irradiation.

Controllable Synthesis and Photocatalytic Activity of Ba0.6Mg0.4TiO3 Particles with Different Morphologies

2014 ◽  
Vol 955-959 ◽  
pp. 2267-2275 ◽  
Author(s):  
Rong Liu ◽  
Shi Duo Zhao ◽  
Xue Lin
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Hydrothermal Process ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
X Ray Diffraction ◽  
Photocatalytic Activities ◽  
Uv Visible ◽  
Xrd Patterns

Ba0.6Mg0.4TiO3 (BMT) particles with different morphologies were synthesized through hydrothermal method and their optical and photocatalytic properties were investigated. Their crystal structure and microstructures were characterized using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). XRD patterns demonstrate that the as-prepared samples are tetragonal structure. FESEM shows that BMT crystals can be fabricated in different morphologies by simply manipulating the reaction parameters of hydrothermal process. The UV-visible diffuse reflectance spectra (UV-vis DRS) reveal that the band gaps of BMT photocatalysts are about 2.37 - 2.51 eV. The as-prepared BMT photocatalysts exhibite higher photocatalytic activities in the degradation of methyl orange (MO) under visible light irradiation (λ > 420 nm) compared with traditional N-doped TiO2 (N-TiO2) and pure BaTiO3 (BTO). The high photocatalytic performance of BMT photocatalysts could be attributed to the recombination restraint of the e-/h+ pairs resulting from doping of Mg2+ ions. The influence of morphologies upon the photocatalytic properties of BMT was studied. Furthermore, BMT nanowires reveal the highest photocatalytic activity. Up to 94.0% MO is decolorized after visible light irradiation for 360 min.

Syntheses, crystal structures and photocatalytic properties of four hybrid iodoargentates with zero- and two-dimensional structures

CrystEngComm ◽  
2016 ◽  
Vol 18 (3) ◽  
pp. 427-436 ◽  
Author(s):  
Xiao-Wu Lei ◽  
Cheng-Yang Yue ◽  
Li-Juan Feng ◽  
Yong-Fang Han ◽  
Rong-Rong Meng ◽  
...  
Keyword(s):  
Visible Light ◽  
Crystal Structures ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
Two Dimensional ◽  
Photocatalytic Activities

Four new hybrid iodoargentates have been solvothermally prepared and structurally characterized. The title compounds possess semiconductor characterizations and efficient photocatalytic activities under visible light irradiation.

Highly efficient Ag6Si2O7/WO3 photocatalyst based on heterojunction with enhanced visible light photocatalytic activities

RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 103289-103295 ◽  
Author(s):  
Yonggang Hu ◽  
Hong Zheng ◽  
Tongzhou Xu ◽  
Ning Xu ◽  
Hongwen Ma
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Organic Contaminants ◽  
Light Irradiation ◽  
Significant Potential ◽  
Highly Efficient ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

Ag6Si2O7/WO3 (1 : 1) heterojunction photocatalyst shows highly efficient and significant potential for photocatalytic degradation of organic contaminants under visible light irradiation.

Hierarchical Bi2MoO6 nanosheet-built frameworks with excellent photocatalytic properties

2015 ◽  
Vol 51 (30) ◽  
pp. 6655-6658 ◽  
Author(s):  
Ying Ma ◽  
Yulong Jia ◽  
Zhengbo Jiao ◽  
Min Yang ◽  
Yanxing Qi ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Organic Contaminants ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
Effective Strategy ◽  
One Dimensional ◽  
Photocatalytic Performances

We demonstrate a simple and effective strategy for rationally fabricating one-dimensional (1D) Bi2MoO6 nanosheet-built frameworks, which exhibit much higher photocatalytic performances than conventional Bi2MoO6 nanoplates and nanoparticles for the degradation of organic contaminants under visible light irradiation.

Solvothermal synthesis and visible light-driven photocatalytic degradation for tetracycline of Fe-doped SrTiO3

RSC Advances ◽  
2014 ◽  
Vol 4 (88) ◽  
pp. 47615-47624 ◽  
Author(s):  
Ping Li ◽  
Chunbo Liu ◽  
Guoling Wu ◽  
Yang Heng ◽  
Shuang Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Light Irradiation ◽  
Photocatalytic Activities ◽  
Visible Light Driven ◽  
Facile Solvothermal Method

In this paper, Fe-doped SrTiO3 (FSTO) photocatalysts were successfully prepared via a facile solvothermal method, and their photocatalytic activities for degrading tetracycline (TC) under visible light irradiation were examined.

scholarly journals Synthesis, Analysis, and Testing of BiOBr-Bi2WO6Photocatalytic Heterojunction Semiconductors

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Xiangchao Meng ◽  
Zisheng Zhang
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Degradation Process ◽  
Light Irradiation ◽  
Enhancement Effect ◽  
Electron Hole ◽  
Experimental Conditions ◽  
Synthesis Conditions ◽  
Optimum Synthesis ◽  
Photocatalytic Activities

In photocatalysis, the recombination of electron-hole pairs is generally regarded as one of its most serious drawbacks. The synthesis of various composites with heterojunction structures has increasingly shed light on preventing this recombination. In this work, a BiOBr-Bi2WO6photocatalytic heterojunction semiconductor was synthesized by the facile hydrothermal method and applied in the photocatalytic degradation process. It was determined that both reaction time and temperature significantly affected the crystal structure and morphologies of the photocatalysts. BiOBr (50 at%)-Bi2WO6composites were prepared under optimum synthesis conditions (120°C for 6 h) and by theoretically analyzing the DRS results, it was determined that they possessed the suitable band gap (2.61 eV) to be stimulated by visible-light irradiation. The photocatalytic activities of the as-prepared photocatalysts were evaluated by the degradation ofRhodamine B (RhB)under visible-light irradiation. The experimental conditions, including initial concentration, pH, and catalyst dosage, were explored and the photocatalysts in this system were proven stable enough to be reused for several runs. Moreover, the interpreted mechanism of the heterojunction enhancement effect proved that the synthesis of a heterojunction structure provided an effective method to decrease the recombination rate of the electron-hole pairs, thereby improving the photocatalytic activity.

Photocatalytic properties of β-pyrochlore RbTe1.5W0.5O6 under visible-light irradiation

2021 ◽  
pp. 122235
Author(s):  
Diana G. Fukina ◽  
Andrey V. Koryagin ◽  
Aleksandra V. Koroleva ◽  
Evgeny V. Zhizhin ◽  
Eugeny V. Suleimanov ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photocatalytic Properties

Construction of Z-Scheme Bi3TaO7/Zn0.5Cd0.5S composites with high-efficiency for levofloxacin degradation under visible light irradiation

2021 ◽  
Author(s):  
Jingjing Xu ◽  
Yang liu ◽  
xueping li ◽  
Mindong Chen
Keyword(s):  
Visible Light ◽  
Hydrothermal Method ◽  
Visible Light Irradiation ◽  
High Efficiency ◽  
Light Irradiation ◽  
In Situ Growth ◽  
Composite Photocatalysts ◽  
Photocatalytic Activities

Direct Z-scheme Bi3TaO7/Zn0.5Cd0.5S composite photocatalysts were successfully prepared via an in-situ growth hydrothermal method. The photocatalytic activities of composites were investigated by the degradation of levofloxacin under visible light. And...

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