PDF (2878K)
摘要
以司班80为添加剂,采用浸渍/旋转涂膜法在石英玻璃片上制备一系列铒(Er3+)/TiO2多孔薄膜(Er3+-TiO2),考察了司班80含量对薄膜结构及性质的影响,并通过扫描电镜、氮气吸附-脱附、X-射线衍射对薄膜的结构进行表征,并由甲基橙溶液的光催化降解反应评价其光催化性能。结果表明:当溶胶中司班80的添加量为0.3%(wt,质量分数),制得的Er3+-TiO2薄膜,在模拟可见光,7.8mg/L甲基橙溶液,光照6h条件下,对甲基橙光催化降解率可达到55.23%。
Abstract
A series of erbium/nano-titanium dioxide porous films (Er3+-TiO2) were prepared on a quartz glass plate by impregnation/spin coating method using span 80 (Sorbitan monooleate) as an additive.The effect of span 80 content on the structure and property of film were investigated.The structure was characterized by scanning electron microscopy,nitrogen adsorption-desorption and X-ray diffraction.The photocatalytic activity for the methyl orange solution was used to evaluate photocatalytic degradation of film.The results showed that Er3+-TiO2 thin film was prepared with the content of span 80 in the sol was 0.3wt%.The photocatalytic degradation rate of TiO2 film for methyl orange can reach 55.23%,under the conditions of simulated visible light,7.8mg/L methyl orange solution and light irradiation 6h.
关键词
二氧化钛
/
表面活性剂
/
司班80
/
铒
/
薄膜
/
光催化
/
甲基橙
Key words
titanium dioxide
/
surfactant
/
span 80(Sorbitan monooleate)
/
erbium
/
thin film
/
photocatalysis
/
methyl orange
铒/TiO2复合材料的制备及其光催化性能研究[J].
化工新型材料, 2018, 46(6): 168-170 DOI:
[1] Choi H,Stathatos E,Dionysiou D D.Sol-gel preparation of mesoporous photocatalytic TiO2,films and TiO2/Al2O3,composite membranes for environmental applications[J].Applied Catalysis B Environmental,2006,63(1):60-67.
[2] Song Y,Yang H,Xu S,et al.Preparation and photocatalytic activities of H-PVA/TiO2 film by Sol-Gel method[J].Polymer Materials Science & Engineering,2012,28(2):140-143.
[3] Jiang W.Effect of polyethylene glycol on microstructure and protocatalysis of Tio2 thin films by non-hydrolytic sol-gel processing[J].Journal of The Chinese Ceramic Society,2008,36(2):187-191.
[4] Aust U,Benfer S,Dietze M,et al.Development of microporous ceramic membranes in the system TiO2/ZrO2[J].Journal of Membrane Science,2006,281(1/2):463-471.[5] 王茹,徐悦华,陈明洁,等.铒掺杂对玻璃表面TiO2薄膜光催化性能的影响[J].中国有色金属学报,2009,19(10):1866-1871.
[6] Liang C H,Hou M F,Zhou S G,et al.The effect of erbium on the adsorption and photodegradation of orange I in aqueous Er3+-TiO2 suspension.[J].Journal of Hazardous Materials,2006,138(3):471-478.
[7] 李少妮.铒掺杂二氧化钛膜的制备及其光催化性能研究[D].太原:太原理工大学,2014.
[8] Wang X,Shi F,Gao X,et al.A sol-gel dip/spin coating method to prepare titanium oxide films[J].Thin Solid Films,2013,548(23):34-39.
[9] Peng J,Zhang Y,Xia H,et al.Studies on the template composition dependence of the surface morphologies of the metal sulfides-p(NIPAM-co-MAA) composite microspheres[J].Acta Physico-Chimica Sinica,2006,22(4):424-429.
[10] Hoffmann M R,Choi W,Bahnemann D W.Environmental applications of semiconductor photocatalysis[J].Chemical Reviews,1995,95(1):69-96.
基金资助
国家自然科学基金(21201130)
