A simple and efficient method to prepare a phosphorus modified g-C3N4 visible light photocatalyst

被引：204
作者：
Hu, Shaozheng [1 ]
Ma, Lin [2 ]
You, Jiguang [3 ]
Li, Fayun [1 ]
Fan, Zhiping [1 ]
Wang, Fei [3 ]
Liu, Dan [4 ]
Gui, Jianzhou [4 ]
机构：
[1] Liaoning Shihua Univ, Inst Ecoenvironm Sci, Fushun 113001, Peoples R China
[2] Liaoning Shihua Univ, Sch Petrochem Engn, Fushun 113001, Peoples R China
[3] Liaoning Shihua Univ, Sch Environm & Biol Engn, Fushun 113001, Peoples R China
[4] Liaoning Shihua Univ, Coll Chem & Mat Sci, Fushun 113001, Peoples R China
来源：
RSC ADVANCES | 2014年 / 4卷 / 41期
基金：
中国国家自然科学基金;
关键词：
GRAPHITIC CARBON NITRIDE; N-DOPED TIO2; HYDROGEN-PRODUCTION; NANOCOMPOSITE; PERFORMANCE; POLYMERS; NANOPARTICLES; ENHANCEMENT; EVOLUTION; PROPERTY;
D O I：
10.1039/c4ra02284j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Phosphorus doped g-C3N4 was prepared by a simple method using dicyandiamide monomer and diammonium hydrogen phosphate as precursors. X-ray diffraction (XRD), UV-Vis spectroscopy, Fourier transform infrared spectra (FT-IR), photoluminescence (PL), X-ray photoelectron spectroscopy (XPS) and photocurrent measurement were used to characterize the prepared catalysts. The results indicated that the introduction of phosphorus inhibited the crystal growth of graphitic carbon nitride, decreased the band gap energy and increased the separation efficiency of photogenerated electrons and holes. The P doping site is influenced by the phosphorus source. Interstitial P doping is more effective in improving the photocatalytic activity of Rhodamine B (RhB) degradation compared with substitutional P doping. A possible mechanism was proposed.
引用
收藏
页码：21657 / 21663
页数：7
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