Photocatalytic Performance of Twice Loading TiO2 with Zeolite and Cementitious Materials

被引：0
|
作者：
He J. [1 ]
Yao W. [1 ]
机构：
[1] Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2020年 / 23卷 / 01期
关键词：
Alkali and thermal treatment; Modified zeolite; Nano-TiO[!sub]2[!/sub; Photocatalytic cementitious material;
D O I：
10.3969/j.issn.1007-9629.2020.01.006
中图分类号：
学科分类号：
摘要：
The zeolite was modified by alkali treatment for 6 hours and thermal treatment at 400℃. The modified zeolite was directly used as carrier for nano-TiO2 to prepare modified zeolite loaded with photocatalyst(MZLP). The MZLP was then loaded on cementitious materials by internal mixing, spraying and exposed aggregate methods, and the photocatalytic performance of cementitious materials loaded with MZLP was studied. The results show that alkali and thermal treatment increases the loading amount of nano-TiO2 on modified zeolite, and the adsorption and degradation properties of MZLP are significantly improved. Modified zeolite is combined with nano-TiO2 by a new Ti-O-Si chemical bond. Photocatalytic cementitious materials loading MZLP supported by spraying method have high degradability to pollutants. © 2020, Editorial Department of Journal of Building Materials. All right reserved.
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页码：35 / 39
页数：4
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  • [1] Zhu H., Zhang Q., Liu Y., Et al., Research progress on photocatalytic cement materials, Bulletin of the Chinese Ceramic Society, 32, 3, pp. 444-447, (2013)
  • [2] Daghrir R., Drogui P., Robert D., Modified TiO<sub>2</sub> for environmental photocatalytic applications: A review, Industrial & Engineering Chemistry Research, 52, 10, pp. 3581-3599, (2013)
  • [3] She A., Ye J., Yao W., Et al., Preparation and properties study of zeolite-loaded TiO<sub>2</sub> photocatalytic cement based material, New Building Materials, 70, 1, pp. 50-53, (2018)
  • [4] Corma A., Garcia H., Zeolite-based photocatalysts, Chemical Communications, 13, pp. 1443-1459, (2004)
  • [5] Kamegawa T., Kido R., Yamahana D., Et al., Design of TiO<sub>2</sub>-zeolite composites with enhanced photocatalytic performances under irradiation of UV and visible light, Microporous and Mesoporous Materials, 165, pp. 142-147, (2013)
  • [6] Gomez S., Marchena C.L., Pizzio L., Et al., Preparation and characterization of TiO<sub>2</sub>/HZSM-11 zeolite for photodegradation of dichlorvos in aqueous solution, Journal of Hazardous Materials, 258-259, 6, pp. 19-26, (2013)
  • [7] Neppolian B., Mine S., Horiuchi Y., Et al., Efficient photocatalytic degradation of organics present in gas and liquid phases using Pt-TiO<sub>2</sub>/Zeolite(H-ZSM), Chemosphere, 153, pp. 237-243, (2016)
  • [8] Seo D., Yun T.S., NO<sub>x</sub> removal rate of photocatalytic cementitious materials with TiO<sub>2</sub> in wet condition, Building and Environment, 112, pp. 233-240, (2017)
  • [9] Horgnies M., Dubois-Brugger I., Gartner E.M., NO<sub>x</sub> de-pollution by hardened concrete and the influence of activated charcoal additions, Cement and Concrete Research, 42, 10, pp. 1348-1355, (2012)
  • [10] Shen S., Burton M., Jobson B., Et al., Pervious concrete with titanium dioxide as a photocatalyst compound for a greener urban road environment, Construction and Building Materials, 35, pp. 874-883, (2012)
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