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掺杂硫酸盐对含钛高炉渣光催化性能的影响 被引量:1

Effect of Sulfate on Photocatalytic Activity of Titanium-bearing Blast Furnace Slag
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摘要 采用高能球磨法,掺杂不同比例的硫酸铵,以攀钢含钛高炉废渣为原料,在400℃煅烧2h合成了具有钙钛矿型的硫酸盐掺杂的含钛高炉渣催化剂(Sulfate-modified titanium-bearing blast furnace slag,STBBFS)。用X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)、紫外可见漫反射光谱(UV-vis)和热重(TG)分析对STBBFS催化剂进行了表征,确定其具有钙钛矿结构,在紫外区域具有很强的光吸收能力。不同硫酸铵掺杂量下,STBBFS催化剂的光催化活性由Cr(Ⅵ)的还原率来评价,结果表明,硫酸铵掺杂量为5%时,STBBFS催化剂具有较高的光催化活性,500W中压汞灯照射8h,可将质量浓度为20mg/L的六价铬废水完全降解。 Perovskite type sulfuric acid-modified titanium-bearing blast furnace slag (STBBFS) photocatalysts are prepared by the high energy ball milling method at 400℃ for 2h. STBBFS photocatalysts are characterized by X- ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric (TG), UV-vis absorp- tion spectra and scanning electronic microscopy (SEM) measurements. Their photocatalytic activity is checked through the photocatalytic reduction of Cr(Ⅵ) as a model compound under UV-vis light irradiation. The results show that the STBBFS photocatalysts have a higher photo catalytic activity when the optimum addition proportion of sulfate is 5 %; the potocatalytic reduction efficiency of Cr( Ⅵ) reaches 100 % after 8h.
出处 《材料导报》 EI CAS CSCD 北大核心 2009年第2期63-66,共4页 Materials Reports
基金 国家自然科学基金项目(50274025) 教育部重大科技资助项目(307009) 973计划项目(2007CB613504)
关键词 含钛高炉渣催化剂 SO42-含量 光催化还原 六价铬 sulfate-modified titanium-bearing blast furnace slag catalyst, concentration of SO4^2- , photocatalytic reduction, Cr( Ⅵ )
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  • 1Lu C H, Hu C Y, Wu C H. Preparation and characterization of new visible-light-driven BaCo0.5 Nb0.5O3 photocatalyst characters of perovskite-type LaCoO3 prepared by reactive grinding[J]. Mater Lett, 2007,61 : 3959
  • 2Huang L, Bassir M, Kaliaguine S. Characters of perovskite- type LaCo2 prepared by reactive grinding[J]. Mater Chem Phys, 2007, 101:259
  • 3Lu X M, Xie J M, Shu H M, et al. Microwave-assisted synthesis of nanocrystalline YFeO3 and study of its photoactivity[J]. Mater Sci Eng B, 2007, 138:289
  • 4Hur SG, KimTW, Hwang S J, et al. Influences of A- and B-site cations on the physicoehemieal properties of perovskite-structured A(In1/3 Nb1/3B1/3)O3 (A=Sr, Ba; B=Sn, Pb) photocatalysts[J]. J Photoehe Photobiol A, 2006, 183: 176
  • 5Yang Y, Sun Y B, iang Y S, et al. Photoinduced structural transformation of SrFeO3 and Ca2 Fe2O5 during photodegradation of methyl orange[J]. Mater Chem Phys, 2006,96 : 234
  • 6Yang Y, Jiang Y S, Wang Y W,et al. Photoinduced decomposition of BaFeO3 during photodegradation of methyl orange[J]. J Mol Catal A Chem, 2007 , 270: 56
  • 7邓积光,王国志,张玉娟,戴洪兴,何洪,邱文革,訾学红.钙钛矿型氧化物的制备与光催化性能研究进展[J].中国稀土学报,2006,24(z2):80-93. 被引量:31
  • 8曾佳,汪浩,朱满康,严辉.钙钛矿氧化物的化学结构及其催化性能的研究进展[J].材料导报,2007,21(1):33-36. 被引量:14
  • 9牛新书,曹志民.钙钛矿型复合氧化物光催化研究进展[J].化学研究与应用,2006,18(7):770-775. 被引量:27
  • 10Col'on G, ' M, Hidalgo M al. Effect S anchez-espana J C, et of TiO2 acidic pre-treatment on the photocatalytic properties for phenol degradation[J]. J Photochem Photobiol A, 2006, 179:20

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