化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (4) : 144-147.

科学研究

F掺杂TiO₂的制备及其光催化性能研究

罗菲菲, 简淼夫

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Preparation of fluorine doped TiO₂ responded to visible light and its photocatalytic activity

Luo Feifei, Jian Miaofu

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Received		Published
2017-01-13		2018-04-20
Issue Date	Revised Date
2018-05-17	2017-01-13

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摘要

以钛酸四丁酯为前驱体,氢氟酸(HF)为氟源,采用水热反应法制备了具有可见光活性的氟(F)掺杂二氧化钛(TiO₂)(TiO₂-F),研究了F掺杂对TiO₂光催化性能的影响。采用XRD、Raman spectra、N₂-BET、TEM、XPS等手段对催化剂进行了表征。研究结果表明:适量HF的掺入可以明显提高TiO₂高能晶面的暴露比、结晶程度、粒径大小以及对甲基橙(MO)的降解效率,在MO浓度为15mg/L、pH为6.5,降解时间为2.5h,HF添加量为60%(体积浓度)制得的TiO₂-F用量为0.8g/L条件下,TiO₂-F对MO溶液的降解率最大达到62.4%,具有较好的光催化效果。

Abstract

A series of fluorine (F) doped titanium dioxide (TiO₂)(TiO₂-F) catalysts were prepared by hydrothermal method using tetrabutyl titanate as precursor and hydrofluoric acid (HF) as fluorine source.The catalysts were tested for the photocatalytic degradation of methyl orange,and the influence of fluorine doping on catalytic activity was investigated.These catalysts were characterized by XRD,Raman spectra,N₂-BET,TEM,XPS and LPSA respectively.Results showed that the appropriate addition of HF could increase the high energy (001) facet of TiO₂,the grain size and the degradation efficiency for methyl orange.The optimal conditions were 15mg/L methyl orange,6.5 of pH,2.5h of degradation time,0.8g/L photocatalyst and 60vol% HF.The TiO₂-F had the good catalytic efficiency and exhibited 62.4% degradation at the optimal condition.

关键词

TiO₂光催化剂 / F掺杂 / 甲基橙 / 性能研究

Key words

TiO₂ photocatalyst / fluorine doping / methyl orange / performance study

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F掺杂TiO₂的制备及其光催化性能研究[J]. 化工新型材料, 2018, 46(4): 144-147 DOI:

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] 葛金龙,陈小清,刘洁,等.Eu、Y掺杂TiO₂光催化剂的制备及光催化性能研究[J].化工新型材料,2016,44(9):162-164.
[2] 韩松,唐荧霜,周杨小雪,等.氮硫改性纳米TiO₂的制备及对甲醛的降解效果研究[J].化学与黏合,2016,38(4):279-282.
[3] Tian H W,Shen K,Hu X Y,et al.N,S co-doped graphene quantum dots-graphene-TiO₂ nanotubes composite with enhanced photocatalytic activity[J].Journal of Alloys and Compounds,2017,691:369-377.
[4] Liu X F,Xing Z P,Zhang Y,et al.Fabrication of 3D flower-like black N-TiO_2-x@MoS₂ for unprecedented-high visible-light-driven photocatalytic performance[J].Applied Catalysis B,Environmental,2017,201:119-127.
[5] Cavalcante R P,Dantasb R F,Bayarric B,et al.Photocatalytic mechanism of metoprolol oxidation by photocatalysts TiO₂ and TiO₂ doped with 5% B:primary active species and intermediates[J].Applied Catalysis B,Environmental,2016,194:111-122.
[6] Fu C X,Gong Y Y,Wu Y T,et al.Photocatalytic enhancement of TiO₂ by B and Zr co-doping and modulation of microstructure[J].Applied Surface Science,2016,379:83-90.
[7] 张鹏会,李艳春,胡浩斌,等.B、N和Ce共掺杂TiO₂光催化降解染料废水研究[J].化工新型材料,2016,44(3):229-234.
[8] Jin Q J,Shen Y S,Zhu S M.Effect of fluorine additive on CeO₂(ZrO₂)/TiO₂ for selective catalytic reduction of NO by NH₃[J].Journal of Colloid and Interface Science,2017,487:401-409.
[9] Gong X Q,Selloni A.Reactivity of anatase TiO₂ nanoparticles:the role of the minority (001) surface[J].The Journal of Physical Chemistry B,2005,109(42):19560-19562.
[10] Wang W,Ni Y,Lu C H,et al.Hydrogenation temperature related inner structures and visible-light-driven photocatalysis of N—F co-doped TiO₂ nanosheets[J].Applied Surface Science,2014,290:125-130.
[11] 肖俊莹,许军,武承杰,等.铬掺杂纳米二氧化钛乳液的制备及其光催化性能[J].河北大学学报(自然科学版),2016,36(4):353-357.
[12] Chung W,Kim S,Chang S.A study of the correlation between the physical characteristics and efficiency of TiO₂ photocatalyst prepared with the sol-gel method[J].Journal of Nanoscience and Nanotechnology,2016,16(10):11040-11045.
[13] 张永勇,贾瑛,许国根,等.ZnO-TiO₂光催化还原亚硝酸盐[J].环境工程学报,2015,9(3):1313-1317.
[14] Su C H,Hu C C,Sun Y C C,et al.Highly active and thermo-stable anatase TiO₂ photocatalysts synthesized by a microwave-assisted hydrothermal method[J].Journal of the Taiwan Institute of Chemical Engineers,2015,59:229-236.
[15] 张哲,陈爱平,马磊,等.CNTs/TiO₂多孔复合膜的组装及光催化性能[J].高等学校化学学报,2013,34(3):656-661.
[16] Lee H,Park Y K,Kim S J,et al.TiOphotocatalyst film using circulating fluidised bed-chemical vapour deposition[J].Surface Engineering,2015,31(2):134-139.
[17] 唐伯明,刘晓凤,曹雪娟,等.N掺杂浓度对TiO₂光催化活性影响的实验与理论研究[J].人工晶体学报,2015,44(7):1885-1889.
[18] Dulian P,Buras M,Witold Z.Modyfication of photocatalytic properties of titanium dioxide by mechanochemical method[J].Polish Journal of Chemical Technology,2016,18(3):68-71.
[19] Wang H Q,Cao S,Fang Z,et al.CeO₂ doped anatase TiO₂ with exposed (001) high energy facets and its performance in selective catalytic reduction of NO by NH₃[J].Applied Surface Science,2015,330:245-252.
[20] Wang W,Lu C H,Ni Y R,et al.Crystal facet growth behavior and thermal stability of {001} faceted anatase TiO₂:mechanistic role of gaseous HF and visible-light photocatalytic activity[J].CrystEng Comm,2013,15(13),2537-2543.
[21] Wang W,Lu C H,Ni Y R,et al.A new sight on hydrogenation of F and N—F doped {001} facets dominated anatase TiO₂ for efficient visible light photocatalyst[J].Applied Catalysis B Environmental,2012,127:28-35.
[22] Yang H G,Sun C H,Qiao S Z,et al.Anatase TiO₂ single crystals with a large percentage of reactive facets[J].Nature,2008,453(7195):634-638.
[23] Liu Y,Fang P F,Cheng Y L,et al.Study on enhanced photocatalytic performance of cerium doped TiO₂-based nanosheets[J].Chemical Engineering Journal,2013,219:478-485.