Role of PEG4000 in sol-gel synthesis of Sm2Ti2O7 photocatalyst for enhanced activity
作者： Wenjie Zhang , Zheng Ma , Ling Du , Hong Li
DOI: 10.1016/J.JALLCOM.2017.02.038
关键词: Nanotechnology 、 Pyrochlore 、 Sol-gel 、 Photocatalysis 、 Radical 、 Crystallization 、 Phase (matter) 、 Conjugated system 、 Materials science 、 BET theory 、 Chemical engineering
摘要: Abstract PEG4000 was used as the template in sol-gel synthesizing of porous Sm 2 Ti O 7 material. Promoted crystallization pyrochlore phase occurs samples. The use leads to particle refinement Metal-oxide bondings T are proven by FT far infrared spectra. Bandgap energy slightly increases after addition PEG4000. BET surface area and pore volume samples constantly increase with rising amount. is beneficial production hydroxyl radicals on under UV light irradiation. optimum photocatalytic activity largest decoloration efficiency belong sample using 1.5 g conjugated chromophores RBR-X3B molecule almost disappear 120 min degradation.
sci-hub.se 参考文章(28)
Wenjie Zhang, Ling Du, Feifei Bi, Hongbo He, A novel SrTiO3/HZSM-5 photocatalyst prepared by sol–gel method Materials Letters. ,vol. 157, pp. 103- 105 ,(2015) , 10.1016/J.MATLET.2015.05.056
J POUILLEAU, D DEVILLIERS, H GROULT, P MARCUS, Surface study of a titanium-based ceramic electrode material by X-ray photoelectron spectroscopy Journal of Materials Science. ,vol. 32, pp. 5645- 5651 ,(1997) , 10.1023/A:1018645112465
LM Lozano-Sánchez, S Obregón, LA Díaz-Torres, Soo-Wohn Lee, V Rodríguez-González, None, Visible and near-infrared light-driven photocatalytic activity of erbium-doped CaTiO3 system Journal of Molecular Catalysis A-chemical. ,vol. 410, pp. 19- 25 ,(2015) , 10.1016/J.MOLCATA.2015.09.005
F. H. Wang, Y. Li, W. J. Zhang, Properties of TiO2 thin films prepared by magnetron sputtering Journal of Materials Science & Technology. ,vol. 18, pp. 101- 107 ,(2002)
Masayoshi Uno, Atsuko Kosuga, Mihoko Okui, Kentarou Horisaka, Shinsuke Yamanaka, Photoelectrochemical study of lanthanide titanium oxides, Ln2Ti2O7 (Ln = La, Sm, and Gd) Journal of Alloys and Compounds. ,vol. 400, pp. 270- 275 ,(2005) , 10.1016/J.JALLCOM.2005.04.004
Jun Chen, Shuangzhi Liu, Li Zhang, Na Chen, New SnS2/La2Ti2O7 heterojunction photocatalyst with enhanced visible-light activity Materials Letters. ,vol. 150, pp. 44- 47 ,(2015) , 10.1016/J.MATLET.2015.02.134
P.Prabhakar Rao, S.J. Liji, K.Ravindaran Nair, Peter Koshy, New pyrochlore-type oxides in Ca–R–Ti–Nb–O system (R=Y, Sm or Gd)—structure, FT-IR spectra and dielectric properties Materials Letters. ,vol. 58, pp. 1924- 1927 ,(2004) , 10.1016/J.MATLET.2003.12.007
C. Dallera, L. Braicovich, L. Duò, A. Palenzona, G. Panaccione, G. Paolicelli, B.C.C. Cowie, J. Zegenhagen, Hard X-ray photoelectron spectroscopy: sensitivity to depth, chemistry and orbital character Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 547, pp. 113- 123 ,(2005) , 10.1016/J.NIMA.2005.05.017
Fei Li, Kai Yu, Lan-Lan Lou, Zhiqian Su, Shuangxi Liu, Theoretical and experimental study of La/Ni co-doped SrTiO3 photocatalyst Materials Science and Engineering B-advanced Functional Solid-state Materials. ,vol. 172, pp. 136- 141 ,(2010) , 10.1016/J.MSEB.2010.04.036
D.G. Huang, S.J. Liao, W.B. Zhou, S.Q. Quan, L. Liu, Z.J. He, J.B. Wan, Synthesis of samarium- and nitrogen-co-doped TiO2 by modified hydrothermal method and its photocatalytic performance for the degradation of 4-chlorophenol Journal of Physics and Chemistry of Solids. ,vol. 70, pp. 853- 859 ,(2009) , 10.1016/J.JPCS.2009.04.005