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g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements

文献类型：期刊论文

作者Huang, Yu1,3,4; Zhang, Jing4; Wang, Zhenyu4; Liu, Yan4; Wang, Pengge4; Cao, Jun-ji1,3,4; Ho, Wingkei2
刊名SOLAR RRL
出版日期2020-05-27
页码9
关键词air-purifying pavements ambient NOx abatement g-C3N4 TiO2 composite hydrosols weak solar irradiation
ISSN号2367-198X
DOI10.1002/solr.202000170
通讯作者Huang, Yu(huangyu@ieecas.cn) ; Ho, Wingkei(keithho@eduhk.hk)
英文摘要The fabrication of a photocatalytic air-purifying pavement with a facile loading route, long depolluting period, and excellent deNO(x) activity under weak solar irradiation is essential for ambient air purification. Herein, a promising methodology is developed relying on the exploitation of a graphitic carbon nitride/TiO2 (g-C3N4/TiO2) composite hydrosol at room temperature. The TiO2 hydrosol can act as a source of photocatalyst and dispersant for g-C3N4 during loading. The photoinduced hydrophilicity, adhesive force, and regeneration tests in the laboratory show the long-term deNO(x) application potential of g-C3N4/TiO2 coatings. Field studies indicate that the NO removal rate is 70.7% of g-C3N4/TiO2-coated pavement in the morning (07:00-10:00) and afternoon (17:00-19:00), at which times solar radiation is weakest. The deNO(x) efficiency is influenced by solar irradiation and traffic volume. The latter exerts a more significant influence on deNO(x) efficiency than the former. A desirable route in fabricating a photocatalytic air-purifying pavement is provided and offers a promising photocatalyst suitable for outdoor environmental remediation.
WOS关键词SURFACE HYDROXYL-GROUPS ; VISIBLE-LIGHT ; NOX ; ABATEMENT ; REMOVAL ; TITANIA ; DECOMPOSITION ; DEGRADATION ; G-C3N4-TIO2 ; OXIDATION
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010300] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010000] ; National Key Research and Development Program of China[2016YFA0203000] ; State Key Lab of Loess and Quaternary Geology[SKLLQGPY1605] ; National Science Foundation of China[41401567] ; National Science Foundation of China[41573138] ; key Project of International Cooperation of the Chinese Academy of Sciences[GJHZ1543] ; General Research Fund-Research Grant Council of Hong Kong Government[18301117] ; Dean Research Fund 19-20 of Hong Kong[PolyU 152083/14E] ; Research Grants Council of Hong Kong[PolyU 152083/14E] ; Hundred Talent Program of the Chinese Academy of Sciences ; EdUHK of Hong Kong[PolyU 152083/14E]
WOS研究方向Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000535695700001
出版者WILEY-V C H VERLAG GMBH
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences, China ; National Key Research and Development Program of China ; State Key Lab of Loess and Quaternary Geology ; National Science Foundation of China ; key Project of International Cooperation of the Chinese Academy of Sciences ; General Research Fund-Research Grant Council of Hong Kong Government ; Dean Research Fund 19-20 of Hong Kong ; Research Grants Council of Hong Kong ; Hundred Talent Program of the Chinese Academy of Sciences ; EdUHK of Hong Kong
源URL[http://ir.ieecas.cn/handle/361006/14803]  
专题地球环境研究所_粉尘与环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Huang, Yu; Ho, Wingkei
作者单位1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem Phys, Xian 710061, Peoples R China
2.Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Yu,Zhang, Jing,Wang, Zhenyu,et al. g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements[J]. SOLAR RRL,2020:9.
APA Huang, Yu.,Zhang, Jing.,Wang, Zhenyu.,Liu, Yan.,Wang, Pengge.,...&Ho, Wingkei.(2020).g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements.SOLAR RRL,9.
MLA Huang, Yu,et al."g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements".SOLAR RRL (2020):9.

入库方式： OAI收割

来源：地球环境研究所

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