Bifunctional Regenerated Cellulose/Polyaniline/Nanosilver Fibers as a Catalyst/Bactericide for Water Decontamination

Qiaoyun Cheng, Qihua Li, Zhanhong Yuan, Shufen Li, John H. Xin, Dongdong Ye

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

For antagonizing urgent water pollution and increasing environmental consciousness, the integration of renewable resources and nanotechnologies has become a trend to improve water quality in the ecosystem. Here, we designed a green route to fabricate regenerated cellulose fibers (CFs) with 3D micro-and nanoporous structures in NaOH/urea aqueous solvent systems via a scalable wet-spinning procedure as support materials for nanoparticles (NPs). Modification of CFs with polyaniline@Ag nanocomposites through in situ reduction of the silver ion with aqueous aniline led to enhanced pollutant removal efficiency of functional cellulose-based fibers (FCFs), demonstrating both rapid hydrogenation catalytic performance for the reduction of p-nitrophenol and high antibacterial properties for in-flow water purification. Most importantly, the hierarchically porous structures of FCFs not only provided carrier space but also formed a limiting domain guaranteeing the homogeneity of FCFs even with a Ag NP content as high as 36.47 wt %. The prepared functional fibers show good behavior in in-flow water purification, representing significant advancement in the use of biomass fibers for catalytic and bactericidal applications in liquid media.

Original languageEnglish
Pages (from-to)4410-4418
Number of pages9
JournalACS Applied Materials and Interfaces
Volume13
Issue number3
DOIs
Publication statusPublished - 27 Jan 2021

Keywords

  • alkali/urea solvent
  • cellulose
  • fibers
  • polyaniline/nanosilver
  • water decontamination

ASJC Scopus subject areas

  • Materials Science(all)

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