SIC OpenIR
In-Situ Fabrication of g-C3N4/ZnO Nanocomposites for Photocatalytic Degradation of Methylene Blue: Synthesis Procedure Does Matter
Zhang, Shengqiang; Su, Changsheng; Ren, Hang; Li, Mengli; Zhu, Longfeng; Ge, Shuang; Wang, Min; Zhang, Zulei; Li, Lei; Cao, Xuebo
2019-02-01
Source PublicationNANOMATERIALS
ISSN2079-4991
Volume9Issue:2
SubtypeArticle
AbstractThe nanocomposite preparation procedure plays an important role in achieving a well-established heterostructured junction, and hence, an optimized photocatalytic activity. In this study, a series of g-C3N4/ZnO nanocomposites were prepared through two distinct procedures of a low-cost, environmentally-friendly, in-situ fabrication process, with urea and zinc acetate being the only precursor materials. The physicochemical properties of synthesized g-C3N4/ZnO composites were mainly characterized by XRD, UV-VIS diffuse reflectance spectroscopy (DRS), N-2 adsorption-desorption, FTIR, TEM, and SEM. These nanocomposites' photocatalytic properties were evaluated in methylene blue (MB) dye photodecomposition under UV and sunlight irradiation. Interestingly, compared with ZnO nanorods, g-C3N4/ZnO nanocomposites (x:1, obtained from urea and ZnO nanorods) exhibited weak photocatalytic activity likely due to a "shading effect", while nanocomposites (x:1 CN, made from g-C3N4 and zinc acetate) showed enhanced photocatalytic activity that can be ascribed to the effective establishment of heterojunctions. A kinetics study showed that a maximum reaction rate constant of 0.1862 min(-1) can be achieved under solar light illumination, which is two times higher than that of bare ZnO nanorods. The photocatalytic mechanism was revealed by determining reactive species through adding a series of scavengers. It suggested that reactive center dot O-2(-) and h(+) radicals played a major role in promoting dye photodegradation.
KeywordZnO nanorods dye photodegradation graphitic carbon nitride nanocomposites in situ synthesis
DOI10.3390/nano9020215
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherMDPI
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27348
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zhang, Shengqiang,Su, Changsheng,Ren, Hang,et al. In-Situ Fabrication of g-C3N4/ZnO Nanocomposites for Photocatalytic Degradation of Methylene Blue: Synthesis Procedure Does Matter[J]. NANOMATERIALS,2019,9(2).
APA Zhang, Shengqiang.,Su, Changsheng.,Ren, Hang.,Li, Mengli.,Zhu, Longfeng.,...&Cao, Xuebo.(2019).In-Situ Fabrication of g-C3N4/ZnO Nanocomposites for Photocatalytic Degradation of Methylene Blue: Synthesis Procedure Does Matter.NANOMATERIALS,9(2).
MLA Zhang, Shengqiang,et al."In-Situ Fabrication of g-C3N4/ZnO Nanocomposites for Photocatalytic Degradation of Methylene Blue: Synthesis Procedure Does Matter".NANOMATERIALS 9.2(2019).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, Shengqiang]'s Articles
[Su, Changsheng]'s Articles
[Ren, Hang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Shengqiang]'s Articles
[Su, Changsheng]'s Articles
[Ren, Hang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Shengqiang]'s Articles
[Su, Changsheng]'s Articles
[Ren, Hang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.