Citation: MA Xiao-Shuai, CHEN Fan-Yun, YU Chang-Lin, YANG Kai, HUANG Wei-Ya, LI Shao-Yu. Photocatalytic Degradation of Ciprofloxacin and Azo Dyes by Pt²⁺/Pt⁰ Doped g-C₃N₄[J]. Chinese Journal of Inorganic Chemistry, ;2020, 36(2): 217-225. doi: 10.11862/CJIC.2020.040 shu

Photocatalytic Degradation of Ciprofloxacin and Azo Dyes by Pt²⁺/Pt⁰ Doped g-C₃N₄

MA Xiao-Shuai ^1,2 ,
CHEN Fan-Yun ² ,
YU Chang-Lin ^1,2,, ,
YANG Kai ^2,, ,
HUANG Wei-Ya ² ,
LI Shao-Yu ²

1.
School of Chemical Engineering, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
2.
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou. Jiangxi 341000, China

Corresponding author: YU Chang-Lin, yuchanglinjx@163.com YANG Kai, yangkai19871006@126.com
Received Date: 28 May 2019
Revised Date: 7 November 2019

Figures(9)

Using melamine and chloroplatinic acid (H₂PtCl₆·6H₂O) as raw materials, graphite phase carbon nitride doped with different contents of Pt²⁺/Pt⁰ (Pt²⁺/Pt⁰-CN) was prepared by a simple one-step calcination method. Their morphologies, crystal structure, chemical compositions, surface area, optical and electrical physicochemical properties were characterized by scan microscopy, transmission electron microscopy, X ray powder diffraction, X ray photoelectron spectroscopy, N₂ physical adsorption-desorption, UV-Visible diffuse reflectance spectra and photocurrent measurement. From the XPS analysis, the ratio of Pt⁰ and Pt²⁺ was around 1:7.26. Platinum particles were doped into the surface and body of the g-C₃N₄. Compared with g-C₃N₄, Pt²⁺/Pt⁰-CN composites showed much higher photocatalytic degradation activity than that of g-C₃N₄. With theory loading mass fraction of Pt²⁺/Pt⁰ (0.02%), the degradation rates of ciprofloxacin, rhodamine B, acid orangeⅡ, methyl orange and methylene blue were increased 43%, 64%, 39%, 42% and 52%, respectively. The doping of Pt²⁺/Pt⁰ into g-C₃N₄ can largely boost the surface area. At the same time, the light absorption of Pt²⁺/Pt⁰-CN composites was enhanced and the recombination of photogernerated holes (h⁺) and electrons (e^-) was restrained.
- one-step calcination,
- doping,
- Pt²⁺/Pt⁰,
- carbon nitride,
- photocatalytic performance
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Photocatalytic Degradation of Ciprofloxacin and Azo Dyes by Pt2+/Pt0 Doped g-C3N4

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通讯作者: 陈斌, bchen63@163.com

Photocatalytic Degradation of Ciprofloxacin and Azo Dyes by Pt²⁺/Pt⁰ Doped g-C₃N₄