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Photocatalytic degradation of formaldehyde using mesoporous TiO2 prepared by evaporation-induced self-assembly

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Abstract

The mesoporous TiO2 has been synthesized by evaporation induced self assembly (EISA) method. The thermogravimetric/differential scanning calorimetric (TG/DSC), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM) and N2 adsorption desorption and adsorption are used to study the effects of the synthesized process condition on the microstructure of the as-synthesized mesoporous TiO2. The photocatalytic performances of as-synthesized samples are evaluated by the degradation of the formaldehyde under ultraviolet light irradiations. The results demonstrate that the as-synthesized mesoporous TiO2 are anatase with the uniform size about 20–40 nm. The sample is prepared using cetyltrimethyl ammonium bromide (CTAB) as the template with average pore size distribution of 8.12 nm, specific surface area of 68.47 m2/g and pore volume of 0.213 mL/g. The samples show decomposition of formaldehyde 95.8% under ultraviolet light irradiations for 90 min. These results provide a basic experimental process for preparation mesoporous TiO2, which will posses a broad prospect in terms of the applications in improving indoor air quality.

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Authors and Affiliations

  1. Institute of New Materials, Department of Biological Engineering and Environmental Science, Changsha University, Changsha, 410003, China

    Cheng-yong Li  (黎成勇), Yan-rong Jia  (贾艳荣), Xiang-chao Zhang  (张向超) & Shi-ying Zhang  (张世英)

  2. School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China

    Yan-rong Jia  (贾艳荣) & Ai-dong Tang  (唐爱东)

Authors
  1. Cheng-yong Li  (黎成勇)
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  2. Yan-rong Jia  (贾艳荣)
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  3. Xiang-chao Zhang  (张向超)
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  4. Shi-ying Zhang  (张世英)
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  5. Ai-dong Tang  (唐爱东)
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Corresponding author

Correspondence to Xiang-chao Zhang  (张向超).

Additional information

Foundation item: Projects(51102026, 51272032) supported by the Program for the National Natural Science Foundation of China; Project(11A014) supported by the Scientific Research Fund of Hunan Provincial Education Department; Project supported by the Aid Program for Science and Technology Innovative Research Team in Higher Educational Instituions of Hunan Province, China

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Li, Cy., Jia, Yr., Zhang, Xc. et al. Photocatalytic degradation of formaldehyde using mesoporous TiO2 prepared by evaporation-induced self-assembly. J. Cent. South Univ. 21, 4066–4070 (2014). https://doi.org/10.1007/s11771-014-2398-1

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  • DOI: https://doi.org/10.1007/s11771-014-2398-1

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