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Z-scheme 2D-m-BiVO4 networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light
Ahmed, Toheed1,2,3; Ammar, Muhammad3,4; Saleem, Aimen5; Zhang, Hong-ling2; Xu, Hong-bin2
2020-01-20
Source PublicationRSC ADVANCES
Volume10Issue:6Pages:3192-3202
AbstractFor economical water splitting and degradation of toxic organic dyes, the development of inexpensive, efficient, and stable photocatalysts capable of harvesting visible light is essential. In this study, we designed a model system by grafting graphitic carbon nitride (g-C3N4) (g-CN) nanosheets on the surface of 2D monoclinic bismuth vanadate (m-BiVO4) nanoplates by a simple hydrothermal method. This as-synthesized photocatalyst has well-dispersed g-CN nanosheets on the surface of the nanoplates of m-BiVO4, thus forming a heterojunction with a high specific surface area. The degradation rate for bromophenol blue (BPB) shown by BiVO4/g-CN is 96% and that for methylene blue (MB) is 98% within 1 h and 25 min, respectively. The 2D BiVO4/g-CN heterostructure system also shows outstanding durability and retains up to similar to 95% degradation efficiency for the MB dye even after eight consecutive cycles; the degradation efficiency for BPB does not change too much after eight consecutive cycles as well. The enhanced photocatalytic activities of BiVO4/g-CN are attributed to the larger surface area, larger number of surface active sites, fast charge transfer and improved separation of photogenerated charge carriers. We proposed a mechanism for the improved photocatalytic performance of the Z-scheme photocatalytic system. The present work gives a good example for the development of a novel Z-scheme heterojunction with good stability and high photocatalytic activity for toxic organic dye degradation and water splitting applications.
DOI10.1039/c9ra09473c
Language英语
WOS KeywordGRAPHITIC CARBON NITRIDE ; CHARGE-TRANSFER ; CO2 REDUCTION ; FABRICATION ; COMPOSITE ; G-C3N4 ; HETEROJUNCTIONS ; NANOCOMPOSITES ; REMOVAL ; SURFACE
Funding ProjectChina National Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07402003] ; UCAS Scholarship for International Students
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationChina National Major Science and Technology Program for Water Pollution Control and Treatment ; UCAS Scholarship for International Students
WOS IDWOS:000508849900018
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38698
Collection中国科学院过程工程研究所
Corresponding AuthorAhmed, Toheed; Ammar, Muhammad
Affiliation1.Govt Coll Univ, Dept Appl Chem, Faisalabad 38000, Pakistan
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Govt Coll Univ, Dept Chem Engn Technol, Faisalabad 38000, Pakistan
5.Ohio State Univ, QARDC, Dept Anim Sci, Biotechnol & Fermentat Grp, Wooster, OH 44691 USA
Recommended Citation
GB/T 7714
Ahmed, Toheed,Ammar, Muhammad,Saleem, Aimen,et al. Z-scheme 2D-m-BiVO4 networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light[J]. RSC ADVANCES,2020,10(6):3192-3202.
APA Ahmed, Toheed,Ammar, Muhammad,Saleem, Aimen,Zhang, Hong-ling,&Xu, Hong-bin.(2020).Z-scheme 2D-m-BiVO4 networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light.RSC ADVANCES,10(6),3192-3202.
MLA Ahmed, Toheed,et al."Z-scheme 2D-m-BiVO4 networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light".RSC ADVANCES 10.6(2020):3192-3202.
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