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New strategy for the in situ synthesis of single-crystalline MnWO4/TiO2 photocatalysts for efficient and cyclic photodegradation of organic pollutants
Jiang, Y. N.; Liu, B. D.; Yang, W. J.; Yang, B.; Liu, X. Y.; Zhang, X. L.; Mohsin, M. A.; Jiang, X.; baodanliu@hotmail.com; xjiang@imr.ac.cn
2016
Source PublicationCRYSTENGCOMM
ISSN1466-8033
Volume18Issue:10Pages:1832-1841
AbstractMnWO4 nano photocatalysts with plate shapes and in high yields are in situ synthesized on the surface of a porous TiO2 film by the conventional plasma electrolytic oxidation (PEO) method combined with a subsequent ambient annealing process. Transmission electron microscopy (TEM) analysis shows that the MnWO4 nano photocatalysts are single crystals free of structural defects and scanning electron microscopy (SEM) observation on the cross-section reveals that these MnWO4 nano photocatalysts are in situ grown on the porous TiO2 film surface with strong adhesion. The morphology and dimension size can be selectively tailored through controlling the reaction time, showing the simplicity and versatility of the proposed method. In addition, the photodegradation of methylene blue (MB) solution using the MnWO4/TiO2 photocatalysts demonstrated the superior photocatalytic performance with high efficiency and excellent photostability. A high photodegradation rate of MB solution of over 90% in 60 min has been achieved and a superior cyclic capability is also obtained. The superior photocatalytic performance of MnWO4/TiO2 photocatalysts can be mainly attributed to the good crystallinity, all-surface covering and strong mechanical properties of the MnWO4 nanostructures with TiO2 film. The prevailing advantage of the PEO method in combination with the ambient annealing process will open up more opportunity for the rational synthesis of a wide range of oxide photocatalysts ranging from tungstate to titanate, molybdate and vanadate for promising catalytic applications in diverse fields.
description.department[jiang, y. n. ; liu, b. d. ; yang, w. j. ; yang, b. ; liu, x. y. ; zhang, x. l. ; mohsin, m. a. ; jiang, x.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
Funding OrganizationKnowledge Innovation Program of Institute of Metal Research (IMR), Chinese Academy of Science (CAS) [Y2NCA111A1, Y3NCA111A1]; Youth Innovation Promotion Association, Chinese Academy of Sciences [Y4NC711171]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75022
Collection中国科学院金属研究所
Corresponding Authorbaodanliu@hotmail.com; xjiang@imr.ac.cn
Recommended Citation
GB/T 7714
Jiang, Y. N.,Liu, B. D.,Yang, W. J.,et al. New strategy for the in situ synthesis of single-crystalline MnWO4/TiO2 photocatalysts for efficient and cyclic photodegradation of organic pollutants[J]. CRYSTENGCOMM,2016,18(10):1832-1841.
APA Jiang, Y. N..,Liu, B. D..,Yang, W. J..,Yang, B..,Liu, X. Y..,...&xjiang@imr.ac.cn.(2016).New strategy for the in situ synthesis of single-crystalline MnWO4/TiO2 photocatalysts for efficient and cyclic photodegradation of organic pollutants.CRYSTENGCOMM,18(10),1832-1841.
MLA Jiang, Y. N.,et al."New strategy for the in situ synthesis of single-crystalline MnWO4/TiO2 photocatalysts for efficient and cyclic photodegradation of organic pollutants".CRYSTENGCOMM 18.10(2016):1832-1841.
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