Waste cotton fiber/Bi 2 WO 6 composite film for dye removal

Qin Qin, Ronghui Guo, Shaojian Lin, Shouxiang Jiang, Jianwu Lan, Xiaoxu Lai, Ce Cui, Hongyan Xiao, Yong Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

Abstract: In this study, the waste cotton fiber (WCF)/Bi 2 WO 6 (BWO) composite film was prepared from BWO and WCF, which is dissolved in ionic liquid ([Amim]Cl). The samples were systematically characterized by scanning electron microscopy, X-ray diffraction, energy dispersive spectroscopy, X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller surface area and UV–Vis diffuse reflection spectroscopy. The removal efficiency of rhodamine b (RhB) and methylene blue (MB) by the composite film in the dark and under visible light were investigated. The results show that the removal abilities of the composite films for RhB and MB are improved with the rise of BWO content. The removal efficiency of RhB and MB arrives at 93.73% and 97.04% under visible light irradiation when the BWO content is 1.5%, respectively. The degradation rate of MB still reaches 89% after four cycle tests. Superoxide radicals (·O2-) and holes (h + ) plays a major role in the degradation and hydroxyl radicals ( · OH) plays an minor role. The WCF/BWO composite film can be potentially applied in photocatalysis and wastewater treatment fields. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)3909-3922
Number of pages14
JournalCellulose
Volume26
Issue number6
DOIs
Publication statusPublished - 15 Apr 2019

Keywords

  • Adsorption and photocatalytic activity
  • Bi WO
  • Composite film
  • Dye removal
  • Waste cotton fiber

ASJC Scopus subject areas

  • Polymers and Plastics

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