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Effect of the pH Value of Synthesis Conditions on the Phase Structure and Photocatalytic Properties of Bismuth Molybdates Synthesized Using a Hydrothermal Method
Guo, Wenfeng1,2; Li, Heping1; Teng, Weixiu1; Cui, Linfan1; Jiao, Tifeng1,2,3
2015-08-31
Source PublicationNANOMATERIALS AND NANOTECHNOLOGY
ISSN1847-9804
Volume5Issue:AUGPages:24
Abstract

Bismuth molybdate single-crystallites were synthesized by a simple hydrothermal method at different pH values. The as-fabricated samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM); it has been found that the pH values of the precursors can significantly influence the structures of the products. Under the Bi/Mo ratio of 2:1 conditions (a nominal composition of Aurivillius structure), low pH leads to the formation of gamma-Bi2MoO6 with Aurivillius type structure, while neutral and higher pH values lead to the formation of gamma Bi2MoO6/Bi2O3 composite, and Bi2O3, respectively. The photocatalytic activities of the samples with different structures were measured for the degradation of methylene blue (MB) under simulated sunlight irradiation. Among the as-fabricated bismuth molybdate samples, the gamma-Bi2MoO6 exhibited superior photocatalytic efficiency to the gamma-Bi2MoO6/Bi2O3 composite and the Bi2O3, mainly due to its unique layered Aurivillius structure, smaller band gap structures and smaller particle sizes.

KeywordGamma-bi2moo6 Aurivillius Structure Photocatalytic Activity Methylene Blue (Mb) Ph Values
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.5772/61294
Indexed BySCI
Language英语
WOS KeywordCATALYST ; BI2MOO6 ; OXIDE ; MORPHOLOGY ; BIVO4
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000360357000001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19492
Collection生化工程国家重点实验室
Affiliation1.Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao, Peoples R China
2.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao, Peoples R China
3.Chinese Acad Sci, Natl Key Lab Biochem Engn, Inst Proc Engn, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Guo, Wenfeng,Li, Heping,Teng, Weixiu,et al. Effect of the pH Value of Synthesis Conditions on the Phase Structure and Photocatalytic Properties of Bismuth Molybdates Synthesized Using a Hydrothermal Method[J]. NANOMATERIALS AND NANOTECHNOLOGY,2015,5(AUG):24.
APA Guo, Wenfeng,Li, Heping,Teng, Weixiu,Cui, Linfan,&Jiao, Tifeng.(2015).Effect of the pH Value of Synthesis Conditions on the Phase Structure and Photocatalytic Properties of Bismuth Molybdates Synthesized Using a Hydrothermal Method.NANOMATERIALS AND NANOTECHNOLOGY,5(AUG),24.
MLA Guo, Wenfeng,et al."Effect of the pH Value of Synthesis Conditions on the Phase Structure and Photocatalytic Properties of Bismuth Molybdates Synthesized Using a Hydrothermal Method".NANOMATERIALS AND NANOTECHNOLOGY 5.AUG(2015):24.
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