SYNTHESIZATION OF ANATASE TiO<sub>2</sub> SYNTHESIZED AT LOW TEMPERATURE, AND ITS ADSORPTION PERFORMANCE ON FLUORIDE ION

FU Rao; ZHANG Wen-long; FENG Jiang-tao; YAN Wei

doi:10.13205/j.hjgc.202002009

Volume 38 Issue 2

Feb. 2020

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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

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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

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

doi: 10.13205/j.hjgc.202002009

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

Received Date: 2019-03-01

Abstract

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.
- fluoride ion,
- adsorption,
- titanium dioxide,
- drinking water

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