pH值对聚合钛离子/蒙脱石复合结构及其TiO2纳米粒子的影响研究

doi:10.3724/SP.J.1077.2012.12087

无机材料学报 ›› 2012, Vol. 27 ›› Issue (12): 1294-1300.DOI: 10.3724/SP.J.1077.2012.12087 CSTR: 32189.14.SP.J.1077.2012.12087

pH值对聚合钛离子/蒙脱石复合结构及其TiO₂纳米粒子的影响研究

吕霞¹, 彭同江¹, 孙红娟², 古朝建²

(1. 西南科技大学矿物材料及应用研究所, 绵阳 621010; 2. 中国科学院广州地球化学研究所, 矿物学与成矿学重点实验室, 广州 510460)

收稿日期:2012-02-12 修回日期:2012-03-25 出版日期:2012-12-20 网络出版日期:2012-11-19
作者简介:吕霞(1987–), 女, 硕士研究生. E-mail: lvxia2010000156@163.com
基金资助:
国家自然科学基金(41072033); 中国科学院矿物学和成矿学重点实验室开放基金(KLMM20110201)

Effects of pH Value on Composite Structure of Poly-titanium-ion/Montmorillonite and Its TiO₂ Nano-particle

Lü Xia¹, PENG Tong-Jiang¹, SUN Hong-Juan², GU Chao-Jian²

(1. Institute of Mineral Materials & Application, Southwest University of Science and Technology, Mianyang 621010, China; 2. Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences Guangzhou 510460, China)

Received:2012-02-12 Revised:2012-03-25 Published:2012-12-20 Online:2012-11-19
About author:Lü Xia. E-mail: lvxia2010000156@163.com
Supported by:
National Natural Science Foundation of China (41072033); Key Laboratory of Mineralogy and Metallogency, Chinese Academy of Sciences (KLMM20110201)

摘要/Abstract

摘要： 采用水解－插层复合法, 以TiOSO₄·2H₂O为TiO₂的前驱体, 蒙脱石为复合基体, 通过控制蒙脱石悬浊液pH值, 制备了不同的蒙脱石复合结构样品. 采用XRD研究了样品的结构、物相、晶粒大小等属性的变化. 结果表明, 蒙脱石悬浊液的pH值对TiOSO₄·2H₂O水解属性有较大的影响, 从而影响水合氧化钛/蒙脱石的复合结构特性, 当蒙脱石悬浊液pH为0.5时, 电价较低且聚合度较小的聚合钛离子易于进入蒙脱石层间域, 对蒙脱石结构层的分散剥离作用最好; 经700℃热处理的TiO₂/蒙脱石复合结构样品中, 锐钛矿晶粒尺寸最小达到13.4 nm; 经1100℃热处理后, 复合结构中锐钛矿相对含量达到35%; 与纯纳米TiO₂样品相比, TiO₂/蒙脱石复合结构中的TiO₂具有更高的锐钛矿相向金红石相转变的温度及更小的晶粒尺寸. 蒙脱石结构层对TiO₂的相转变和晶粒长大都具有明显的阻滞作用.

关键词: 聚合钛离子, 蒙脱石, 锐钛矿, 复合结构

Abstract: The montmorillonite composite structure samples were prepared using a hydrolysation-intercalation composite method with TiOSO₄·2H₂O as a precursor of TiO₂nano-particles and montmorillonite as substrate by controlling the pH value of the montmorillonite suspension. The changes of the structure, phase and crystal size of the samples were characterized by X-ray diffraction method. The results show that the pH value of montmorillonite suspension has a significant influence on the hydrolyzation of TiOSO₄·2H₂O, so the composite structure of hydrated- titanium-oxide/montmorillonite is affected. When the pH value of montmorillonite suspension is 0.5, the poly-titanium-ions are with the lower electrovalence and extent of polymerization and easily intercalate the interlayer space of montmorillonite, moreover, the structural layers of montmorillonite are separated best. The crystal size of anatase in the TiO₂/montmorillonite composite samples calcinated at 700℃ is smallest and reaches 13.4 nm. After calcination at 1100℃, the relative content of anatase in the composite structure reaches 35%. Compared with pure TiO₂ nano-particle sample, TiO₂/Montmorillonite composite sample has a higher phase transition temperature from anatase phase to rutile phase and smaller crystal size of TiO₂. Montmorillonite structure layer has a significant blocking effect on the TiO₂phase transformation and grain growth.

Key words: poly-titanium-ion, montmorillonite, anatase, composite structure

中图分类号:

TQ175

吕霞, 彭同江, 孙红娟, 古朝建. pH值对聚合钛离子/蒙脱石复合结构及其TiO₂纳米粒子的影响研究[J]. 无机材料学报, 2012, 27(12): 1294-1300.

Lü Xia, PENG Tong-Jiang, SUN Hong-Juan, GU Chao-Jian. Effects of pH Value on Composite Structure of Poly-titanium-ion/Montmorillonite and Its TiO₂ Nano-particle[J]. Journal of Inorganic Materials, 2012, 27(12): 1294-1300.

参考文献

[1] LI Xiang-Qi, TANG De-Ping, WENG Guo-Jian, et al. Effect of calcination on the photocatalytic properties of TiO2-pillared clays. Bulletin of the Chinese Ceramic Society, 2004, 23(2):25–27.

[2] Chen Q F, Shi W M, Xu Y, et al. Visible-light-responsive Ag-Si codoped anatase TiO2 photocatalyst with enhanced thermal stability. Materials Chemistry and Physics, 2011, 125(3):825–832.

[3] Kun R, Mogyorósi K, Dékány I. Synthesis and structural and photocatalytic properties of TiO2/montmorillonite nanocomposites. Applied Clay Science, 2006, 32(1/2): 99–110.

[4] SUN Hong- Juan, LIU Ying, PENG Tong-Jiang, et al. Phase transition of TiO2 in TiO2/montmorillonite nanocomposites. Chinese Journal of Inorganic Chemistry, 2011, 27(3): 403–408.

[5] SUN Hong- Juan, PENG Tong-Jiang, CHEN Yan-Cui, et al. Interlayer in-situ reaction process and preparation of TiO2/montmorillonite composites. Acta Chimica Sinica, 2011, 69(17): 2003–2008.

[6] Kameshima Y, Yoshizawa A, Nakajima A, et al. Solid acidities of SiO2–TiO2/montmorillonite composites synthesized under different pH conditions. Applied Clay Science, 2009, 46(2): 181–184.

[7] LI Zong-Ren, CHEN Xiao-Quan, LIU Huan-Bin, et al. Progress of study on preparation of nanosized titanium dioxide from titanyl sulfate. Paint & Coatings Industry, 2009, 39(2): 64–67.

[8] LI Da-Cheng, ZHOU Da-Li, LIU Heng, et al. Preparation of nanometer TiO2. Sichuan Nonferrous Metals, 2003(2): 1–8.

[9] TIAN Cong-Xue, ZHANG Zhao. Synthesis of ordered mesoporous TiO2 from industrial titanyl sulfate solution and its formation mechanism. Journal of Inorganic Materials, 2009, 24(2): 225–228.

[10] 刘勋. 天然矿物负载TiO2的光催化功能材料研究. 成都: 四川大学硕士论文, 2003.

[11] Scherrer P H, Bogart R S, Bush R I, et al. The solar oscillations investigation-michelson doppler imager. Solar Physics, 1995, 162(1/2): 129–188.

[12] WANG Da-Zhi, ZHU Bin, ZHOU Gui-En, et al. Disappearance and reappearance of the (001) reflections of montmorillonite. Acta Physica Sinica, 1987, 36(8):1004–1009.

[13] HU Lin-Hua, DAI Song-Yuan, WANG Kong-Jia. Structural transformation of nanocrystalline titania grown by Sol-Gel technique and the growth kinetics of crystallites. Acta Physica Sinica, 2003, 52(9): 2135–2139.

[14] Gribb A A, Banfield J F. Particle size effects on transformation kinetics and phase stability in nanocrystalline TiO2. American Mineralogist, 1997, 82(7/8): 717–728.

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pH值对聚合钛离子/蒙脱石复合结构及其TiO₂纳米粒子的影响研究

Effects of pH Value on Composite Structure of Poly-titanium-ion/Montmorillonite and Its TiO₂ Nano-particle

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