Hydrothermal synthesis spherical TiO                         2                          and its photo-degradation property on salicylic acid

Wenlu Guo; Xiaolin Liu; Pengwei Huo; Xun Gao; Di Wu; Ziyang Lu; Yongsheng Yan

doi:10.1016/j.apsusc.2012.03.126

Hydrothermal synthesis spherical TiO ₂ and its photo-degradation property on salicylic acid

Wenlu Guo, Xiaolin Liu, Pengwei Huo, Xun Gao, Di Wu, Ziyang Lu, Yongsheng Yan

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Anatase TiO ₂ spheres have been prepared using hydrothermal synthesis. The prepared spheres were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and UV-vis diffuse reflectance spectra (UV-vis DRS). The TiO ₂ consisted of well-defined spheres with size of 3-5 μm. The photocatalytic activity of spherical TiO ₂ was determined by degradation of salicylic acid under visible light irradiation. It was revealed that the degradation rate of the spherical TiO ₂ which was processed at 150 °C for 48 h could reach 81.758%. And the kinetics of photocatalytic degradation obeyed first-order kinetic, which the rate constant value was 0.01716 S ^-1 of the salicylic acid onto TiO ₂ (temperature: 150, time: 48 h). The kinetics of adsorption followed the pseudo-second-order model and the rate constant was 1.2695 g mg ^-1 of the salicylic acid onto TiO ₂ (temperature: 150, time: 48 h).

Original language	English
Pages (from-to)	6891-6896
Number of pages	6
Journal	Applied Surface Science
Volume	258
Issue number	18
DOIs	https://doi.org/10.1016/j.apsusc.2012.03.126
State	Published - 1 Jul 2012
Externally published	Yes

Keywords

Degradation rate
Hydrothermal synthesis
Salicylic acid

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10.1016/j.apsusc.2012.03.126

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title = " Hydrothermal synthesis spherical TiO 2 and its photo-degradation property on salicylic acid ",

abstract = " Anatase TiO 2 spheres have been prepared using hydrothermal synthesis. The prepared spheres were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and UV-vis diffuse reflectance spectra (UV-vis DRS). The TiO 2 consisted of well-defined spheres with size of 3-5 μm. The photocatalytic activity of spherical TiO 2 was determined by degradation of salicylic acid under visible light irradiation. It was revealed that the degradation rate of the spherical TiO 2 which was processed at 150 °C for 48 h could reach 81.758%. And the kinetics of photocatalytic degradation obeyed first-order kinetic, which the rate constant value was 0.01716 S -1 of the salicylic acid onto TiO 2 (temperature: 150, time: 48 h). The kinetics of adsorption followed the pseudo-second-order model and the rate constant was 1.2695 g mg -1 of the salicylic acid onto TiO 2 (temperature: 150, time: 48 h).",

keywords = "Degradation rate, Hydrothermal synthesis, Salicylic acid",

author = "Wenlu Guo and Xiaolin Liu and Pengwei Huo and Xun Gao and Di Wu and Ziyang Lu and Yongsheng Yan",

year = "2012",

month = jul,

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doi = "10.1016/j.apsusc.2012.03.126",

language = "英语",

volume = "258",

pages = "6891--6896",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

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}

Hydrothermal synthesis spherical TiO ₂ and its photo-degradation property on salicylic acid . / Guo, Wenlu; Liu, Xiaolin; Huo, Pengwei et al.
In: Applied Surface Science, Vol. 258, No. 18, 01.07.2012, p. 6891-6896.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Hydrothermal synthesis spherical TiO 2 and its photo-degradation property on salicylic acid

AU - Guo, Wenlu

AU - Liu, Xiaolin

AU - Huo, Pengwei

AU - Gao, Xun

AU - Wu, Di

AU - Lu, Ziyang

AU - Yan, Yongsheng

PY - 2012/7/1

Y1 - 2012/7/1

N2 - Anatase TiO 2 spheres have been prepared using hydrothermal synthesis. The prepared spheres were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and UV-vis diffuse reflectance spectra (UV-vis DRS). The TiO 2 consisted of well-defined spheres with size of 3-5 μm. The photocatalytic activity of spherical TiO 2 was determined by degradation of salicylic acid under visible light irradiation. It was revealed that the degradation rate of the spherical TiO 2 which was processed at 150 °C for 48 h could reach 81.758%. And the kinetics of photocatalytic degradation obeyed first-order kinetic, which the rate constant value was 0.01716 S -1 of the salicylic acid onto TiO 2 (temperature: 150, time: 48 h). The kinetics of adsorption followed the pseudo-second-order model and the rate constant was 1.2695 g mg -1 of the salicylic acid onto TiO 2 (temperature: 150, time: 48 h).

AB - Anatase TiO 2 spheres have been prepared using hydrothermal synthesis. The prepared spheres were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and UV-vis diffuse reflectance spectra (UV-vis DRS). The TiO 2 consisted of well-defined spheres with size of 3-5 μm. The photocatalytic activity of spherical TiO 2 was determined by degradation of salicylic acid under visible light irradiation. It was revealed that the degradation rate of the spherical TiO 2 which was processed at 150 °C for 48 h could reach 81.758%. And the kinetics of photocatalytic degradation obeyed first-order kinetic, which the rate constant value was 0.01716 S -1 of the salicylic acid onto TiO 2 (temperature: 150, time: 48 h). The kinetics of adsorption followed the pseudo-second-order model and the rate constant was 1.2695 g mg -1 of the salicylic acid onto TiO 2 (temperature: 150, time: 48 h).

KW - Degradation rate

KW - Hydrothermal synthesis

KW - Salicylic acid

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DO - 10.1016/j.apsusc.2012.03.126

M3 - 文章

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SN - 0169-4332

VL - 258

SP - 6891

EP - 6896

JO - Applied Surface Science

JF - Applied Surface Science

IS - 18

ER -

Hydrothermal synthesis spherical TiO ₂ and its photo-degradation property on salicylic acid

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Keywords

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