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    g-C<sub>3</sub>N<sub>4</sub>/TiO<sub>2</sub> Composite Photocatalyst and Its Application to Asphalt for NO Removal

    Source: Journal of Materials in Civil Engineering:;2019:;Volume ( 031 ):;issue: 008
    Author:
    Xiaoyu Yang
    ,
    Boming Tang
    ,
    Tao Wu
    ,
    Xuejuan Cao
    DOI: 10.1061/(ASCE)MT.1943-5533.0002763
    Publisher: American Society of Civil Engineers
    Abstract: Automobile exhaust emission has become one of the environmental problems that cannot be ignored. In order to improve the photocatalytic activity of titanium dioxide (TiO2), graphitic carbon nitride (g-C3N4)/TiO2 was prepared, and its bonding state and morphology were analyzed by microscopic characterizations. The nitric oxide (NO) removal efficiency of g-C3N4/TiO2 was higher than that of g-C3N4 and TiO2. This was attributed to the formation of a heterojunction between g-C3N4 and TiO2 which accelerated the separation and transfer of photoinduced carriers. Because the results showed that the micropores produced by demulsification of emulsified asphalt were beneficial to the improvement of photocatalytic performance, emulsified asphalt was chosen as the carrier of g-C3N4/TiO2 photocatalysts to study the influence of different application forms on photocatalytic performance of asphalt specimens. Furthermore, it was found that both the specimens with spraying photocatalyst aqueous solution and the specimens with spreading powder had a good NO removal effect. However, with the increase of photocatalyst content, the NO removal efficiency of sprayed specimen was higher than that of the spreading specimen due to the good dispersion of the photocatalyst in the spraying solution.
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      g-C<sub>3</sub>N<sub>4</sub>/TiO<sub>2</sub> Composite Photocatalyst and Its Application to Asphalt for NO Removal

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4259388
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    • Journal of Materials in Civil Engineering

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    contributor authorXiaoyu Yang
    contributor authorBoming Tang
    contributor authorTao Wu
    contributor authorXuejuan Cao
    date accessioned2019-09-18T10:36:47Z
    date available2019-09-18T10:36:47Z
    date issued2019
    identifier other%28ASCE%29MT.1943-5533.0002763.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4259388
    description abstractAutomobile exhaust emission has become one of the environmental problems that cannot be ignored. In order to improve the photocatalytic activity of titanium dioxide (TiO2), graphitic carbon nitride (g-C3N4)/TiO2 was prepared, and its bonding state and morphology were analyzed by microscopic characterizations. The nitric oxide (NO) removal efficiency of g-C3N4/TiO2 was higher than that of g-C3N4 and TiO2. This was attributed to the formation of a heterojunction between g-C3N4 and TiO2 which accelerated the separation and transfer of photoinduced carriers. Because the results showed that the micropores produced by demulsification of emulsified asphalt were beneficial to the improvement of photocatalytic performance, emulsified asphalt was chosen as the carrier of g-C3N4/TiO2 photocatalysts to study the influence of different application forms on photocatalytic performance of asphalt specimens. Furthermore, it was found that both the specimens with spraying photocatalyst aqueous solution and the specimens with spreading powder had a good NO removal effect. However, with the increase of photocatalyst content, the NO removal efficiency of sprayed specimen was higher than that of the spreading specimen due to the good dispersion of the photocatalyst in the spraying solution.
    publisherAmerican Society of Civil Engineers
    titleg-C3N4/TiO2 Composite Photocatalyst and Its Application to Asphalt for NO Removal
    typeJournal Paper
    journal volume31
    journal issue8
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0002763
    page04019141
    treeJournal of Materials in Civil Engineering:;2019:;Volume ( 031 ):;issue: 008
    contenttypeFulltext
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