Preparation of Alkali Metals Co-doped Graphitic Carbon Nitride by Molten Salt Method and Photocatalytic Performance

被引：0
|
作者：
Liang H. [1 ]
Zou H. [1 ]
Hu S. [1 ]
Li J. [2 ]
Tian Y. [2 ]
机构：
[1] College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun
[2] School of Metallurgy, Northeastern University, Shenyang
来源：
| 2018年 / Cailiao Daobaoshe/ Materials Review卷 / 32期
关键词：
Alkali metal; G-C[!sub]3[!/sub]N[!sub]4[!/sub; Photocatalysis; Visible light;
D O I：
10.11896/j.issn.1005-023X.2018.24.002
中图分类号：
学科分类号：
摘要：
Alkali metals co-doped graphitic carbon nitride (g-C3N4) was prepared using melamine as precursor, KCl and NaCl as molten salts, and characterized by X-ray diffraction (XRD), N2 adsorption, UV-vis spectroscopy, X-ray photoelectron spectroscopy (XPS), and Photoluminescence (PL). By controlling the weight ratio of eutectic salts to melamine, the VB and CB potentials of prepared g-C3N4 could be tuned from +1.55 V and -1.10 V to +2.27 V and -0.27 V, respectively. Besides, the ions embedding inhibited the crystal growth, enhanced the separation rate of photo-generated electrons and holes, and enlarged the surface area. The catalytic abilities of products were investigated by photodegradation and mineralization of Rhodamine (RhB) under visibe light. The results showed that photocatalytic activity and stability of prepared catalysts were significantly improved after alkali metals doping. © 2018, Materials Review Magazine. All right reserved.
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页码：4217 / 4223
页数：6
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