热处理对铁掺杂TiO2锐钛矿-金红石相变的影响

朱晓东1,2, 雷佳浩1, 王尘茜1, 朱然苒1, 冯威1*

化工新型材料 ›› 2019, Vol. 47 ›› Issue (2) : 108 -111.

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化工新型材料 ›› 2019, Vol. 47 ›› Issue (2) : 108-111.
新材料与新技术

热处理对铁掺杂TiO2锐钛矿-金红石相变的影响

    朱晓东1,2, 雷佳浩1, 王尘茜1, 朱然苒1, 冯威1*
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Influence of heat treatment temperature on the anatase-rutile phase transformation of Fe-doped TiO2

  • Zhu Xiaodong1,2, Lei Jiahao1, Wang Chenxi1, Zhu Ranran1, Feng Wei1
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摘要

采用溶胶-凝胶法制备了纯TiO2和不同浓度Fe掺杂TiO2纳米粉末,并对各样品进行了350℃、500℃、650℃的热处理。通过SEM、XRD、EDS、XPS等测试方法对其表面形貌、晶体结构及成分组成进行了表征,研究了热处理温度对Fe掺杂TiO2相变的影响。实验结果表明:纯TiO2与Fe-TiO2在350℃、500℃时均为单一的锐钛矿,650℃时大部分转变为金红石;热处理温度升高有利于锐钛矿向金红石的转变;Fe掺杂后以+3价的形式存在,Fe离子掺杂能够明显减小TiO2的晶粒尺寸,高浓度的Fe掺杂对锐钛矿-金红石相变有微弱的促进作用。

Abstract

The pure and Fe-doped TiO2 with different concentrations nanopowders were synthesized by sol-gel method and annealed at the temperature of 350℃,500℃and 650℃.The surface morphology,crystal structure and elemental composition were characterized by SEM,XRD,EDS and XPS.The influence of heat treatment temperature on the phase transformation of Fe-doped TiO2 was studied.Experimental results showed that both the pure and Fe-doped TiO2 were anatase at the temperature of 350℃ and 500℃,respectively.The phase structure of pure and Fe-doped TiO2 were almost all rutile at the temperature of 650℃,which indicated that higher heat treatment temperature promoted the phase transformation of anatase and rutile.Fe element exsited in the form of +3 valence.The incorporation of Fe into TiO2 lattices decreased the crystallite size of TiO2.Fe doping with high dopant level had a slight promotion effect on the phase transition from anatase to rutile.

关键词

Fe掺杂 / TiO2 / 热处理温度 / 锐钛矿-金红石相变

Key words

Fe-doping / TiO2 / heat treatment temperature / phase transition from anatase to rutile

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热处理对铁掺杂TiO2锐钛矿-金红石相变的影响[J]. 化工新型材料, 2019, 47(2): 108-111 DOI:

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参考文献

[1] Liao S K,Chang Y H,Wu C T,et al.Fabrication of anthocyanin-sensitized nanocrystalline titanium dioxide solar cells using supercritical carbon dioxide[J].Journal of CO2 Utilization,2017,21:513-520.
[2] 杨志广,王筠,吴亚楠,等.TiO2纳米管的制备及其抑菌性能研究[J].化工新型材料,2015,43(7):60-62.
[3] 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):229-231.
[4] Dubey R S.Temperature-dependent phase transformation of TiO2 nanoparticles synthesized by sol-gel method[J].Materials Letters,2018,215:312-317.
[5] Abd El-Lateef H M,Khalaf M M.Corrosion resistance of ZrO2-TiO2 nanocomposite multilayer thin films coated on carbon steel in hydrochloric acid solution[J].Materials Characterization,2015,108:29-41.
[6] Bhangea P D,Awate S V,Gholap R S.et al.Photocatalytic degradation of methylene blue on Sn-doped titania nanoparticles synthesized by solution combustion route[J].Materials Research Bulletin,2016,76:264-272.
[7] Bokare A,Pai M,Athawale A A.Surface modified Nd doped TiO2 nanoparticles as photocatalysts[J].Solar Energy,2013,91(8):111-119.
[8] Huang D G,Liao S J,Zhou W B,et al.Synthesis of samarium- and nitrogen-co-doped TiO2 by modified hydrothermal method and its photocatalytic performance for the degradation of 4-chlorophenol[J].Journal of Physics and Chemistry of Solids,2009,7(5):853-859.
[9] 孟丹,王和义,刘秀华,等.Fe掺杂对纳米TiO2薄膜的结构与光催化性能的影响[J].应用化学,2011,28(12):1379-1386.
[10] Wei N,Cui H,Song Q,et al.Ag2O nanoparticle/TiO2 nanobelt heterostructures with remarkable photo-response and photocatalytic properties under UV,visible and near-infrared irradiation[J].Applied Catalysis B:Environmental,2016,198:83-90.
[11] Uvarov V,Popov I.Metrological characterization of X-ray diffraction methods for determination of crystallite size in nano-scale materials[J].Materials Characterization,2007,58(10):883-891.
[12] 陈桂华,葛昌华,潘富友,等.化学沉淀法制备纳米Fe/TiO2及其光催化活性的研究[J].人工晶体学报,2010,39(2):433-439.
[13] Spurr R A,Myers H.Quantitative analysis of anatase-rutile mixtures with an X-Ray diffractometer[J].Analytical Chemistry,1957,29(5):760-762.
[14] Tripathi A K,Mathpal M C,Kumar P,et al.Structural,optical and photoconductivity of Sn and Mn doped TiO2 nanoparticles[J].Journal of Alloys and Compounds,2015,622:37-47.
[15] 顾建军,刘鹏飞,韩金荣,等.Fe掺杂量和退火氛围对TiO2薄膜晶体结构和磁性能的影响[J].材料工程,2014(10):101-105.

基金资助

国家自然科学基金青年项目(51702027);四川省应用基础研究项目(2018JY0062);四川省粉末冶金工程技术研究中心开放课题重点项目(SC-FMYJ2017-03);成都市科技局软科学项目(2016-RK00-00044-ZF);2018年国家级大学生创新创业训练计划项目(201811079001);成都大学本科教育教学改革项目(cdjgb2017103)

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