Login Register Cart 0
Generic placeholder image

Recent Patents on Nanotechnology

Editor-in-Chief

ISSN (Print): 1872-2105
ISSN (Online): 2212-4020

Back
Journal Home About Journal Editorial Board Journal Insight Current Issue Volumes/Issues
Subscribe
Research Article

Preparation of Bismuth Tungstate/Preoxidized Acrylonitrile/Acrylic Acid Copolymer Composite Nanofiber Membrane and Its Photocatalytic Properties

Author(s): Yinchun Fang*, Xinhua Liu, Hongzhang Li and Yanchun Liu

Volume 17, Issue 2, 2023

Published on: 18 July, 2022

Page: [144 - 149] Pages: 6

DOI: 10.2174/1872210516666220513094531

Price: $65

Abstract

Background: In this patent article, a novel bismuth tungstate/preoxidized acrylonitrile/ acrylic acid (AN/AA) copolymer composite nanofiber membrane was prepared, which was used as the visible light catalyst.

Methods: AN/AA copolymer was synthesized, which was electrospun with bismuth nitrate and sodium tungstate to prepare the composite nanofiber. Then the composite nanofiber was preoxidized to prepare the bismuth tungstate/preoxidized AN/AA composite nanofiber membrane containing adsorption moiety and photocatalytic active moiety.

Results: The photocatalytic activity of bismuth tungstate/preoxidized AN/AA composite nanofiber membrane with different preoxidized temperature, heating rate, and holding time by catalytic degradation of methylene blue was investigated. The optimal preoxidized conditions were as follows: the preoxidized temperature was heated to 200 °C with the heating rate of 1°C/min and the holding time at this temperature was 12 h. The chemical structure and morphology of the composite nanofiber membrane were characterized by FTIR, XRD, and SEM.

Conclusion: The bismuth tungstate/preoxidized AN/AA composite nanofiber membrane obtained good photocatalytic properties and reusability under visible light. The degradation rate of methylene blue by this visible light catalyst could reach 90.24% for 4.5 h, and the degradation rate remained 81.53% for 4.5 h after 5 reuses.

Keywords: Electrospinning, nanofiber, photocatalytic, visible light, acrylonitrile, bismuth tungstate.

« Previous Next »
Graphical Abstract

[1]
Ghanbari F, Moradi M. Application of peroxymonosulfate and its activation methods for degradation of environmental organic pollutants. Chem Eng J 2017; 310: 41-62.
[http://dx.doi.org/10.1016/j.cej.2016.10.064]
[2]
Pi Y, Li X, Xia Q, et al. Adsorptive and photocatalytic removal of persistent organic pollutants (POPs) in water by metal-organic frame-works (MOFs). Chem Eng J 2018; 337: 351-71.
[http://dx.doi.org/10.1016/j.cej.2017.12.092]
[3]
Yang T, Peng J, Zheng Y, et al. Enhanced photocatalytic ozonation degradation of organic pollutants by ZnO modified TiO2 nanocompo-sites. Appl Catal B 2018; 221: 223-34.
[http://dx.doi.org/10.1016/j.apcatb.2017.09.025]
[4]
Maparu AK, Rai B. Visible light responsive doped titania photocatalytic nanoparticles and process for their synthesis: US Patent 9352302, May 31, 2016.
[5]
Wei WD, Zhai Y. Light-driven synthesis of plasmonic nanoparticles and nanomaterials: US Patent 11311940, April 26, 2022.
[6]
Jones WE, Liu J, Bernier WE, et al. Metal oxide nanofibrous materials for photodegradation of environmental toxins: US Patent 10661261, May 26, 2020.
[7]
Lu J, Li N. Titanium carbide nanosheet/layered indium sulfide heterojunction and application thereof in degrading and removing water pollutants: US Patent Application 16/882017, November 26, 2020.
[8]
Yadav AA, Hunge YM, Kang SW. Porous nanoplate-like tungsten trioxide/reduced graphene oxide catalyst for sonocatalytic degradation and photocatalytic hydrogen production. Surf Interfaces 2021; 24: 101075.
[http://dx.doi.org/10.1016/j.surfin.2021.101075]
[9]
Yadav AA, Kang SW, Hunge YM. Photocatalytic degradation of Rhodamine B using graphitic carbon nitride photocatalyst. J Mater Sci Mater Electron 2021; 32(11): 15577-85.
[http://dx.doi.org/10.1007/s10854-021-06106-y]
[10]
Hung YM, Uchida A, Tominaga Y, et al. Visible light-assisted photocatalysis using spherical-shaped BiVO4 photocatalyst. Catalysts 2021; 11(4): 460.
[http://dx.doi.org/10.3390/catal11040460]
[11]
He W, Sun Y, Jiang G, Huang H, Zhang X, Dong F. Activation of amorphous Bi2WO6 with synchronous Bi metal and Bi2O3 coupling: Photocatalysis mechanism and reaction pathway. Appl Catal B 2018; 232: 340-7.
[http://dx.doi.org/10.1016/j.apcatb.2018.03.047]
[12]
Zhang K, Wang J, Jiang W, Yao W, Yang H, Zhu Y. Self-assembled perylene diimide based supramolecular heterojunction with Bi2WO6 for efficient visible-light-driven photocatalysis. Appl Catal B 2018; 232: 175-81.
[http://dx.doi.org/10.1016/j.apcatb.2018.03.059]
[13]
Luo S, Ke J, Yuan M, et al. CuInS2 quantum dots embedded in Bi2WO6 nanoflowers for enhanced visible light photocatalytic removal of contaminants. Appl Catal B 2018; 221: 215-22.
[http://dx.doi.org/10.1016/j.apcatb.2017.09.028]
[14]
Tang J, Zou Z, Ye J. Photocatalytic decomposition of organic contaminants by Bi2WO6 under visible light irradiation. Catal Lett 2004; 92(1/2): 53-6.
[http://dx.doi.org/10.1023/B:CATL.0000011086.20412.aa]
[15]
Tian R, Liu D, Wang J, et al. Three-dimensional BiOI/TiO2 heterostructures with photocatalytic activity under visible light irradiation. J Porous Mater 2018; 25(6): 1805-12.
[http://dx.doi.org/10.1007/s10934-018-0594-3]
[16]
Huo WC, Dong X, Li JY, et al. Synthesis of Bi2WO6 with gradient oxygen vacancies for highly photocatalytic NO oxidation and mechanism study. Chem Eng J 2019; 361: 129-38.
[http://dx.doi.org/10.1016/j.cej.2018.12.071]
[17]
Liu X, Li H, Liu Z, Fang Y, Wang C. Visible-light-driven photocatalytic properties of electrospun bismuth tungstate/PAN composite nano-fiber membrane. Journal of Polymer Materials 2018; 35(3): 295-304.
[http://dx.doi.org/10.32381/JPM.2018.35.03.4]
[18]
Sian TS, Reddy GB. Infrared spectroscopic studies on Mg intercalated crystalline MoO3 thin films. Appl Surf Sci 2004; 236(1-4): 1-5.
[http://dx.doi.org/10.1016/j.apsusc.2004.03.259]
[19]
Huang J, Tan G, Xia A, Ren H, Zhang L. Growth mechanism and photocatalytic properties of flower-like Bi2WO6 powders synthesized by a microwave hydrothermal method. Res Chem Intermed 2014; 40(2): 903-11.
[http://dx.doi.org/10.1007/s11164-012-1010-2]
[20]
Gui MS, Wang PF, Yuan JG, Li YQ, Zeng WG. Preparation and visible light photocatalytic activity of Bi2WO6 hollow microspheres. Adv Mat Res 2014; 864: 1323-6.
[21]
Liu Y, Tang H, Lv H, Li Z, Ding Z, Li S. Self-assembled three-dimensional hierarchical Bi2WO6 microspheres by sol-gel-hydrothermal route. Ceram Int 2014; 40(4): 6203-9.
[http://dx.doi.org/10.1016/j.ceramint.2013.11.075]
[22]
Xu C, Wei X, Ren Z, et al. Solvothermal preparation of Bi2WO6 nanocrystals with improved visible light photocatalytic activity. Mater Lett 2009; 63(26): 2194-7.
[http://dx.doi.org/10.1016/j.matlet.2009.07.014]

Rights & Permissions Print Cite
Article Metrics
6
© 2024 Bentham Science Publishers | Privacy Policy