Monolith free-standing plasmonic PAN/Ag/AgX (X = Br, I) nanofiber mat as easily recoverable visible-light-driven photocatalyst

Most efficient visible-light-responsive photocatalysts are in the form of powder, leading to the tedious separation from the reaction media. Herein, we developed a versatile method for the general synthesis of free-standing polyacrylonitrile (PAN)/Ag/AgX (X = Br, I) nanofiber mats, where fibrous PAN...

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Bibliographic Details
Published in:Rare metals 2019-05, Vol.38 (5), p.361-368
Main Authors: Ping, Meng-Mo, Qiu, Shu-Jun, Wei, Gui-Juan, Liu, Jun-Xue, Wang, Zhao-Jie, Wang, Shu-Tao, An, Chang-Hua
Format: Article
Language:English
Subjects:
Biomaterials
Catalytic activity
Chemical synthesis
Chemistry and Materials Science
Electroless plating
Energy
Ethanol
Halogenation
Materials Engineering
Materials Science
Mats
Metallic Materials
Nanofibers
Nanoscale Science and Technology
Photocatalysis
Photocatalysts
Photodegradation
Physical Chemistry
Pollutants
Polyacrylonitrile
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Summary:Most efficient visible-light-responsive photocatalysts are in the form of powder, leading to the tedious separation from the reaction media. Herein, we developed a versatile method for the general synthesis of free-standing polyacrylonitrile (PAN)/Ag/AgX (X = Br, I) nanofiber mats, where fibrous PAN/Ag precursor was firstly prepared via an electroless plating strategy, followed by a direct elemental halogenation with Br 2 /H 2 O or I 2 /ethanol solution. The as-obtained PAN/Ag/AgX nanofiber mats exhibit exceptional photocatalytic activity toward degradation of organic pollutants. Furthermore, the flexibility enables it to be easily recovered after the reaction was completed. This work provides new insights into the fabrication of membrane-based photocatalysts on a large scale.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-019-01242-1