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Cold spray (P, N, Mo)-TiO2 photocatalytic coatings: synthesis, microstructural characterization and photocatalytic properties
Shen,Yanfang1; Gyansah,L2; Song,Wan1; Feng,Bo1,3; Wang,Jiqiang1; Cui,Xinyu1; Tao,Yongshan1; Xiong,Tianying1
2019-07-24
Source PublicationMaterials Research Express
ISSN2053-1591
Volume6Issue:9
AbstractAbstract The (P, N, Mo)-TiO2 photocatalyst particles were intuitively synthesized using spray the sol-gel method followed by the spray drying method. Imperatively, the (P, N, Mo)-TiO2 photocatalyst coatings were deposited on aluminum substrate by cold spraying. The (P, N, Mo)-TiO2 powders were initially prepared by sol-gel method, which exhibited the characteristics of a polygonal particle with a primary particle size of 20 nm and a mean size of 2 μm. The synthesized (P, N, Mo)-TiO2 powders were agglomerated into spherical particles with a mean size of 5 μm by spray drying method. The agglomerated powders depicted a good flowability, wettability and were suitable for cold spray deposition. The successful (P, N, Mo)-TiO2 coatings exhibited good interfacial bonding with the substrate, with an average coating thickness of 15 μm. The properties of the synthesized (P, N, Mo)-TiO2 powders and coatings were analyzed by advanced modern techniques, including XRD, XPS, UV–vis, SEM and TEM. The photocatalytic performance of (P, N, Mo)-TiO2 coatings were investigated under visible light. Cold sprayed (P, N, Mo)-TiO2 coatings exhibited excellent photocatalytic activity in MB degradation under visible-light irradiation. The (P, N, Mo)-TiO2 coating sprayed at 500 °C revealed the highest photodegradation rate of 38% in 4 h. Complementarily, the doping mechanism and photocatalytic mechanism of (P, N, Mo)-TiO2 coatings were also effectively proposed and discussed.
Keywordcold spraying spray drying photocatalyst coating titanium dioxide
DOI10.1088/2053-1591/ab3028
Language英语
WOS IDIOP:2053-1591-6-9-ab3028
PublisherIOP Publishing
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80559
Collection中国科学院金属研究所
Affiliation1.Institute of Metal Research, Chinese Academy of Sciences, 110016, People’s Republic of China
2.Regional Maritime University, Marine Engineering Department, Ghana
3.School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, People’s Republic of China
Recommended Citation
GB/T 7714
Shen,Yanfang,Gyansah,L,Song,Wan,et al. Cold spray (P, N, Mo)-TiO2 photocatalytic coatings: synthesis, microstructural characterization and photocatalytic properties[J]. Materials Research Express,2019,6(9).
APA Shen,Yanfang.,Gyansah,L.,Song,Wan.,Feng,Bo.,Wang,Jiqiang.,...&Xiong,Tianying.(2019).Cold spray (P, N, Mo)-TiO2 photocatalytic coatings: synthesis, microstructural characterization and photocatalytic properties.Materials Research Express,6(9).
MLA Shen,Yanfang,et al."Cold spray (P, N, Mo)-TiO2 photocatalytic coatings: synthesis, microstructural characterization and photocatalytic properties".Materials Research Express 6.9(2019).
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