Visible light photocatalytic mineralization of bisphenol A by carbon and oxygen dual-doped graphitic carbon nitride

2019 ◽  
Vol 540 ◽  
pp. 97-106 ◽  
Author(s):  
Jiayu Gu ◽  
Huan Chen ◽  
Fang Jiang ◽  
Xin Wang
Keyword(s):  
Bisphenol A ◽  
Visible Light ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Visible Light Photocatalytic

scholarly journals Preparation of oxygen-doped graphitic carbon nitride and its visible-light photocatalytic performance on bisphenol A degradation

2018 ◽  
Vol 78 (5) ◽  
pp. 1023-1033 ◽  
Author(s):  
Rong Tang ◽  
Renli Ding ◽  
Xianchuan Xie
Keyword(s):  
Bisphenol A ◽  
Visible Light ◽  
Carbon Nitride ◽  
Active Species ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Oxidation Activity ◽  
Visible Light Driven ◽  
Pre Treatment ◽  
Visible Light Photocatalytic

Abstract A novel metal-free oxygen-doped graphitic carbon nitride (O-g-C3N4) was synthesized by the pre-treatment of bulk graphitic carbon nitride (g-C3N4) with hydrogen peroxide (H2O2), and combined with high-temperature calcination treatment. The obtained 2-O-g-C3N4 catalyst exhibits high activity in visible light photocatalytic degradation of bisphenol A (BPA) with a mineralization rate as high as 62.3%. According to the characterization results of X-ray diffraction, transmission electron microscopy, UV-visible spectroscopy, Brunauer-Emmett-Teller and photoluminescence spectroscopy analyses, the markedly higher visible-light-driven oxidation activity of 2-O-g-C3N4 is attributed to the larger specific surface area, wider range of light responses and low charge recombination rate. Moreover, the trapping experiment shows that superoxide radicals (•O2−) are the dominant active species in the BPA decomposition process over 2-O-g-C3N4. This study presents a simple and environment-friendly method to synthesise oxygen-doped graphitic carbon nitride.

A curly architectured graphitic carbon nitride (g-C3N4) towards efficient visible-light photocatalytic H2 evolution

2020 ◽  
Vol 7 (2) ◽  
pp. 347-355 ◽  
Author(s):  
Yuanzhi Hong ◽  
Longyan Wang ◽  
Enli Liu ◽  
Jiahui Chen ◽  
Zhiguo Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
H2 Evolution ◽  
Photocatalytic H2 Evolution ◽  
Visible Light Photocatalytic

The unique curly-like architecture g-C3N4 with excellent photocatalytic H2 evolved activity was reported by a facile precursor-reforming strategy.

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