Citation: Hualin Jiang, Jun Liu, Menglin Li, Lei Tian, Gongsheng Ding, Pinghua Chen, Xubiao Luo. Facile synthesis of C-decorated Fe, N co-doped TiO₂ with enhanced visible-light photocatalytic activity by a novel co-precursor method[J]. Chinese Journal of Catalysis, ;2018, 39(4): 747-759. doi: 10.1016/S1872-2067(18)63038-4 shu

Facile synthesis of C-decorated Fe, N co-doped TiO₂ with enhanced visible-light photocatalytic activity by a novel co-precursor method

Hualin Jiang ^a,b, ,
Jun Liu ^a,b ,
Menglin Li ^a,b ,
Lei Tian ^a,b ,
Gongsheng Ding ^b ,
Pinghua Chen ^a,b ,
Xubiao Luo ^a,b

a Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, Jiangxi, China;
b College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China

Received Date: 24 December 2017
Revised Date: 18 January 2018

Fund Project: This work was supported by the National Natural Science Foundation of China (51368044, 51568051, 51668046), the National Science Fund for Excellent Young Scholars (51422807), the Science and Technology Supporting Program of Jiangxi Province (20151BBG70018), the Natural Science Foundation of Jiangxi Province for Distinguished Young Scholars (20162BCB23041), the Science Foundation for Young Scientists of Jiangxi Province-Key Project (20171ACB21034), the Science and Technology Project of Jiangxi Provincial Education Department (GJJ160700), the Natural Science Foundation of Jiangxi Province (20161BAB216102), the Jiangxi Province Educational Reform Project (JXJG-16-8-7), and the Nanchang Hangkong University Educational Reform Project (JY1604, JY1605, KCPY-1511).

Lattice-doping and surface decoration are prospective routes to improve the visible-light photocatalytic ability of TiO₂, but the two techniques are difficult to combine into one preparation process because they are usually conducted under different conditions, which limits the efficiency of TiO₂ modification. In this study, TiO₂ was successfully modified by simultaneous lattice-doping and surface decoration, and the visible-light photocatalytic capacity was largely improved. Upon comparing the method reported here with previous ones, the most significant difference is that Fe(Ⅱ)-phenanthroline was first used as the co-precursor of the introduced elements of C, N, and Fe. These three elements were simultaneously introduced to TiO₂ at high levels by this co-precursor method. The as-synthesized photocatalysts were systemically investigated and analyzed by several characterization methods such as XRD, FT-IR, XPS, Raman spectroscopy, EPR, UV-Vis DRS, photoluminescence spectra, photocurrent, electrochemical impedance spectra, TEM, and HRTEM. The photocatalytic degradation of 4-NP under visible-light irradiation was used to evaluate the photocatalytic activity of the photocatalysts. Based on the experimental data, a probable mechanism for the photocatalytic degradation by the photocatalysts is proposed. This is a novel method of using one source to simultaneously introduce metal and non-metal elements to TiO₂ at high levels, which may provide a new way to prepare highly effective TiO₂ photocatalysts.
- Lattice doping,
- Surface decoration,
- TiO₂,
- Photocatalysis,
- 4-nitrophenol removal
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Facile synthesis of C-decorated Fe, N co-doped TiO2 with enhanced visible-light photocatalytic activity by a novel co-precursor method

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通讯作者: 陈斌, bchen63@163.com

Facile synthesis of C-decorated Fe, N co-doped TiO₂ with enhanced visible-light photocatalytic activity by a novel co-precursor method