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锐钛矿型二氧化钛的低温合成及其吸附除氟性能的研究

付娆,  张文龙,  冯江涛,  延卫

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文章导航 > 环境工程  > 2020 >  38(2): 70-76
付娆, 张文龙, 冯江涛, 延卫. 锐钛矿型二氧化钛的低温合成及其吸附除氟性能的研究[J]. 环境工程, 2020, 38(2): 70-76. doi: 10.13205/j.hjgc.202002009
引用本文: 付娆, 张文龙, 冯江涛, 延卫. 锐钛矿型二氧化钛的低温合成及其吸附除氟性能的研究[J]. 环境工程, 2020, 38(2): 70-76. doi: 10.13205/j.hjgc.202002009
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FU Rao, ZHANG Wen-long, FENG Jiang-tao, YAN Wei. SYNTHESIZATION OF ANATASE TiO2 SYNTHESIZED AT LOW TEMPERATURE, AND ITS ADSORPTION PERFORMANCE ON FLUORIDE ION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 70-76. doi: 10.13205/j.hjgc.202002009
Citation: FU Rao, ZHANG Wen-long, FENG Jiang-tao, YAN Wei. SYNTHESIZATION OF ANATASE TiO2 SYNTHESIZED AT LOW TEMPERATURE, AND ITS ADSORPTION PERFORMANCE ON FLUORIDE ION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(2): 70-76. doi: 10.13205/j.hjgc.202002009
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锐钛矿型二氧化钛的低温合成及其吸附除氟性能的研究

doi: 10.13205/j.hjgc.202002009

  • 西安交通大学 能源与动力工程学院, 西安 710049

基金项目: 

陕西省重点研发计划资助项目（2017SF-386）；中央高校基本科研业务费专项资金资助项目（1191329818）。

详细信息
    作者简介:

    付娆(1995-),女,硕士研究生,主要研究方向为环境吸附材料。furaograce@163.com

    通讯作者:

    冯江涛(1981-),男,博士,副教授,主要研究方向为新型吸附材料和工业废水处理。fjtes@mail.xjtu.edu.cn

SYNTHESIZATION OF ANATASE TiO2 SYNTHESIZED AT LOW TEMPERATURE, AND ITS ADSORPTION PERFORMANCE ON FLUORIDE ION

  • School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China

    摘要
  • 摘要: 通过水解法在50℃低温条件下合成了锐钛矿型TiO2，使用XRD、FT-IR、BET等方法对TiO2进行了表征，并研究其对水中氟离子的吸附行为。结果表明：所合成锐钛矿型TiO2比表面积达到278.93 m2/g，常温下对氟离子的最大吸附量为30.02 mg/g。吸附过程符合Langmuir等温线模型和准一级动力学模型，是自发性的吸热过程，吸附机理为静电吸引。
    Abstract: In this study, the anatase TiO2 samples were obtained by hydrolysis at 50℃. The as-prepared TiO2 samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy and Brunner Emmet Teller. Then the adsorption behavior of fluoride ion onto the as-prepared TiO2 from water was studied. The results showed that the as-prepared TiO2 samples had a specific surface area of 278.93 m2/g. The maximum adsorption capacity of the TiO2 adsorbents could reach 30.02 mg/g according to Langmuir model. The adsorption process could be well descripted by the Langmuir isothermal equation and the pseudo first-order equation. The adsorption process was confirmed to be a spontaneous and exothermic process, which was prominently conducted through electrostatic attraction.
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