One-step syntheses of MoS2/graphitic carbon composites with enhanced photocatalytic activity under visible light irradiation

2017 ◽  
Vol 41 (23) ◽  
pp. 14171-14178 ◽  
Author(s):  
Hongye Bai ◽  
Weiqiang Fan ◽  
Yilin Ge ◽  
Peng Guan ◽  
Weidong Shi
Keyword(s):  
Photocatalytic Activity ◽  
Carbon Source ◽  
Visible Light ◽  
Sodium Alginate ◽  
Visible Light Irradiation ◽  
Graphitic Carbon ◽  
Light Irradiation ◽  
Carbon Composites ◽  
One Step

MoS2/GC composites were synthesized with sodium alginate as carbon source, and the reason for enhanced photocatalytic activity has been revealed.

scholarly journals Ce-Doped Graphitic Carbon Nitride Derived from Metal Organic Frameworks as a Visible Light-Responsive Photocatalyst for H2 Production

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1539 ◽  
Author(s):  
Liangjing Zhang ◽  
Zhengyuan Jin ◽  
Shaolong Huang ◽  
Yiyue Zhang ◽  
Mei Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Metal Organic Frameworks ◽  
Graphitic Carbon ◽  
Light Irradiation ◽  
Graphitic Carbon Nitride ◽  
Enhanced Absorption ◽  
Metal Organic

Novel fibrous graphitic carbon nitride (g-C3N4) derivatives prepared from metal organic frameworks (MOFs) were doped with Ce3+ (Ce-C3N4) as photocatalytic materials. Ce-C3N4 was characterized using various techniques, revealing its high specific surface area, excellent photocatalytic activity, and stability for H2 evolution under visible light irradiation. The fluorine modified samples show superior photocatalytic activity under visible light irradiation, which is due to the presence of more active sites and enhanced absorption of solar energy. This work provides a new synthetic route for MOF-derived g-C3N4 that can be doped with different metal ions. The fluorine modified Ce-C3N4 is an efficient photocatalyst with potential for many applications related to energy and the environment.

Porous and low-defected graphitic carbon nitride nanotubes for efficient hydrogen evolution under visible light irradiation

RSC Advances ◽  
2015 ◽  
Vol 5 (124) ◽  
pp. 102700-102706 ◽  
Author(s):  
Zhijun Huang ◽  
Fengbo Li ◽  
Bingfeng Chen ◽  
Guoqing Yuan
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Electronic Properties ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Light Irradiation ◽  
Graphitic Carbon Nitride ◽  
Optical And Electronic Properties

Porous and low-defected g-C3N4 nanotubes with high SBET and optimized optical and electronic properties exhibit enhanced photocatalytic activity.

scholarly journals One-Step Microwave-Assisted Synthesis and Visible-Light Photocatalytic Activity Enhancement of BiOBr/RGO Nanocomposites for Degradation of Methylene Blue

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4577
Author(s):  
Kun-Yauh Shih ◽  
Yen-Ling Kuan ◽  
En-Rui Wang
Keyword(s):  
Electron Microscopy ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Degradation Mechanism ◽  
Photogenerated Electron ◽  
Light Irradiation ◽  
Microwave Assisted ◽  
One Step

In this study, bismuth oxybromide/reduced graphene oxide (BiOBr/RGO), i.e. BiOBr-G nanocomposites, were synthesized using a one-step microwave-assisted method. The structure of the synthesized nanocomposites was characterized using Raman spectroscopy, X-ray diffractometry (XRD), photoluminescence (PL) emission spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), and ultraviolet-visible diffuse reflection spectroscopy (DRS). In addition, the ability of the nanocomposite to degrade methylene blue (MB) under visible light irradiation was investigated. The synthesized nanocomposite achieved an MB degradation rate of above 96% within 75 min of continuous visible light irradiation. In addition, the synthesized BiOBr-G nanocomposite exhibited significantly enhanced photocatalytic activity for the degradation of MB. Furthermore, the results revealed that the separation of the photogenerated electron–hole pairs in the BiOBr-G nanocomposite enhanced the ability of the nanocomposite to absorb visible light, thus improving the photocatalytic properties of the nanocomposites. Lastly, the MB photo-degradation mechanism of BiOBr-G was investigated, and the results revealed that the BiOBr-G nanocomposites exhibited good photocatalytic activity.

scholarly journals Application of BiVO4 Nanocomposite for Photodegradation of Methyl Orange

Proceedings ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 52 ◽  
Author(s):  
Sarah Aghakhaninejad ◽  
Rahmatollah Rahimi ◽  
Solmaz Zargari
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
X Ray Diffraction ◽  
Pollutant Degradation ◽  
X Ray ◽  
One Step ◽  
Scanning Electron

In this work, BiVO4–graphene photocatalyst was prepared by a facile one-step hydrothermal method and characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The photocatalytic activity of this compound was investigated by destruction of methyl orange (MO) under visible light irradiation. The photodegradation results show that the prepared BVG compound has higher photocatalytic activity than the pure BiVO4 compound. This compound can degrade 98% of MO under visible light irradiation. This work indicates that BiVO4 compounds are excellent compounds for pollutant degradation under visible light irradiation.

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