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Boosted adsorption–photocatalytic activities and potential lithium intercalation applications of layered potassium hexaniobate nano-family
- Source :
- RSC Advances. 7:28105-28113
- Publication Year :
- 2017
- Publisher :
- Royal Society of Chemistry (RSC), 2017.
-
Abstract
- Two-dimensional layered K4Nb6O17 (KN) possesses two different types of interlayer regions, which is of great interest for applications in energy conversion, environmental purification, etc. Although the photocatalytic properties of KN have been extensively studied, there still remain some pivotal problems that need to be clarified for future applications. Here we demonstrate that the KN nano-family (including KN nanolaminas and nano hollow spheres) can be derived from the same Nb2O5-based hydrothermal reaction. Different morphologies of KN show unique microstructures and optoelectronic properties. Remarkably, the initial pH of a dye solution has been proven to play a vital role in affecting the adsorption and photocatalytic performances of KN. Due to the effects of dye sensitization, KN shows superior photodegradation performance under both ultraviolet and visible light. Based on these crucial results, a highly-efficient and feasible scheme has been proposed to deal with dye wastewater. In addition, KN as a potential anode material for lithium ion batteries has been investigated for the first time. The present work could be helpful in broadening the multifunctional applications of KN and other layered niobate materials.
- Subjects :
- Materials science
General Chemical Engineering
Inorganic chemistry
chemistry.chemical_element
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Microstructure
01 natural sciences
0104 chemical sciences
Anode
Adsorption
chemistry
Chemical engineering
Nano
Photocatalysis
Lithium
0210 nano-technology
Photodegradation
Visible spectrum
Subjects
Details
- ISSN :
- 20462069
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- RSC Advances
- Accession number :
- edsair.doi...........70e9fa57d1478683e39c9740698d4cd6