Preparation and properties of sliver and nitrogen co-doped TiO2 photocatalyst
Preparation and properties of sliver and nitrogen co-doped TiO2 photocatalyst
复制标题
银氮共掺杂TiO2光催化剂的制备及性能
DOI：
10.1016/j.materresbull.2013.06.057
复制
发表时间：
2013-11
影响因子：
5.4
通讯作者：
Qingju Liu
中科院分区：
文献类型：
--
作者：
Ying Zhang;Jin Zhang;Zhongqi Zhu;Ningning Yan;Qingju Liu
采用溶胶-凝胶法结合微波化学法制备了不同含量Ag和N共掺杂的TiO2光催化剂。通过X射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）、透射电子显微镜（TEM）、紫外-可见漫反射光谱（UV-vis）和光致发光发射光谱（PL）对样品进行了分析。通过在荧光灯照射下光催化降解亚甲基蓝（MB）来研究其光催化活性。结果表明，Ag和N共掺杂可以抑制晶粒尺寸的增大，将吸收光谱拓宽至可见光区，并抑制光生电子空穴对的复合。此外，Ag-N-TiO2在MB降解中的光催化活性显着提高。 Ag:TiO2= 0.05 at%、N:TiO2= 18.50 wt%的样品在5 h内的降解率为93.44%，远高于Degussa P25（39.40%）。
TiO2photocatalysts co-doped with different content of Ag and N were prepared by sol–gel method combined with microwave chemical method. The samples were analyzed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM), ultraviolet–visible diffuse reflectance spectrum (UV–vis) and photo-luminescence emission spectrum (PL). The photocatalytic activity was investigated by photocatalytic degradation of methylene blue (MB) under irradiation of fluorescent lamp. The results indicate that Ag and N co-doping can restrain the increase of grain size, broaden the absorption spectrum to visible light region, and inhibit the recombination of the photo-generated electron–hole pairs. Moreover, the photocatalytic activity of Ag–N–TiO2in MB degradation is remarkable improved. The degradation rate of the sample with Ag:TiO2= 0.05 at%, N:TiO2= 18.50 wt% in 5 h is 93.44%, which is much higher than that of Degussa P25 (39.40%).
登录
查看更多内容
影响因子：
3.3
作者：
Gole, JL;Stout, JD;Chen, XB
通讯作者：
Chen, XB
影响因子：
6.7
作者：
He, C;Yu, Y;Larbot, A
通讯作者：
Larbot, A
影响因子：
--
作者：
López, TL;Moreno, JA;Reyes, P
通讯作者：
Reyes, P
影响因子：
2.8
作者：
P. Zolotavin;E. P. Permenova;O. Sarkisov;V. Nadtochenko;R. Azouani;P. Portes;K. Chhor;A. Kanaev
通讯作者：
P. Zolotavin;E. P. Permenova;O. Sarkisov;V. Nadtochenko;R. Azouani;P. Portes;K. Chhor;A. Kanaev
氮掺杂TiO2光催化剂的制备新方法及其可见光催化活性研究
影响因子：
22.1
作者：
Xing, Mingyang;Chen, Feng;Zhang, Jinlong
通讯作者：
Zhang, Jinlong