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| Synthesis of Carbon Nanotubes Modified g-C3N4 Photocatalysts for Enhanced Photocatalytic Degradation Activity |
| Author Name | Affiliation | E-mail | | WANG Peng | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | LI Zhao | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China
School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China | | | ZHOU Ying-Mei | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | XU Yan | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | ZHU Jie | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | WANG Shi-Fan | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | CAI Ke-Ying | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | LI Jing | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | DU Xi-Hua | School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221018, China | | | YANG Peng-Ju | State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, China | yangpengju10@mails.ucas.ac.cn |
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| Abstract: Graphitic carbon nitride hybridized with a small number of carbon nanotubes (CNT) was synthesized using urea as precursor. The resulting CNT/g-C3N4 composite photocatalysts were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), Fourier infrared spectrometer (FT-IR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible-near infrared Reflection Spectrophotometer (UV-Vis-NIR Spectrophotometer) and photoluminescence spectroscopy (PL). Results indicate that the synergistic interaction between CNT and g-C3N4 changed the optical properties of bulk g-C3N4, affected the energy band structure, enhanced the absorption of visible light, optimized the distribution of the photogenerated carrier and improved the electron-hole separation rate. The photocatalytic degradation of rhodamine B solution (RhB) was performed under visible light irradiation. The photocatalytic activity of CNT/g-C3N4 composite was the highest when 0.1%(w/w) CNT was loaded on the substrate, the rate constant for the photocatalyst was 3.1 times as high as that of pure g-C3N4. It was also found that the superoxide radical was the main active species for catalytic degradation in this system. |
| Keywords: photocatalysis graphitic carbon nitride carbon nanotubes visible light |
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| WANG Peng,LI Zhao,ZHOU Ying-Mei,XU Yan,ZHU Jie,WANG Shi-Fan,CAI Ke-Ying,LI Jing,DU Xi-Hua,YANG Peng-Ju.Synthesis of Carbon Nanotubes Modified g-C3N4 Photocatalysts for Enhanced Photocatalytic Degradation Activity[J].Chinese Journal of Inorganic Chemistry,2019,35(2):217-224. |
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