Highly efficient Zr doped-TiO2/glass fiber photocatalyst and its performance in formaldehyde removal under visible light

被引：9

作者：

Chao Huang ^{[1
]}

Yaping Ding ^{[1
]}

Yingwen Chen ^{[1
,2
]}

Peiwen Li ^{[3
]}

Shemin Zhu ^{[4
]}

Shubao Shen ^{[1
]}

机构：

[1] State Key Laboratory Materials of Materials-Oriented Chemical Engineering, Nanjing Tech University

[2] Jiangsu Engineering Technology Research Center of Environmental Cleaning Material, School of Environmental Science and Engineering,Nanjing University of Information Science and Technology

[3] Department of Aerospace and Mechanical Engineering, the University of Arizona

[4] College of Material Science and Engineering, Nanjing Tech University

来源：

Journal of Environmental Sciences | 2017年 / 10期

关键词：

TiO2; Zr; Photocatalyst; Formaldehyde; Glass fiber;

D O I：

暂无

中图分类号：

O643.36 [催化剂]; O644.1 [光化学];

学科分类号：

070304 ; 081704 ; 081705 ;

摘要：

Zr-doped-TiO2loaded glass fiber(ZT/GF) composite photocatalysts with different Zr/Ti ratios were prepared with a sol–gel process. Zr4+can replace Ti4+in the TiO2lattice, which is conducive to forming the anatase phase and reducing the calcination temperature. The glass fiber carrier was responsible for better dispersion and loading of Zr-doped-TiO2particles, improving the applicability of the Zr-doped-TiO2. The ZT/GF photocatalysts were characterized by X-ray diffraction(XRD), scanning electron microscope(SEM), Fourier transform infrared spectroscopy(FT-IR), ultraviolet–visible spectroscopy(UV–vis) and Barrett–Joyner–Halenda(BJH). The performance of photocatalysts with different loading was evaluated in formaldehyde degradation under visible light at room temperature. ZT/GF0.2exhibited the highest activity, with a formaldehyde removal rate as high as 95.14% being observed, which is better than that of the photocatalyst particles alone. The stability of the catalyst was also tested, and ZT/GF exhibited excellent catalytic performance with 94.38%removal efficiency, even after seven uses.

引用

页码：61 / 69

页数：9

共 28 条

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