pp 1–15 | Cite as

Enhanced removal of aqueous Cr(VI) using optimized Fe complex on EDTA modified cotton fiber via photocatalytic reduction and adsorption hybrid functions

  • Yongchun DongEmail author
  • Peng Wang
  • Lu Gan
  • Bing Li
  • Hongjie Wen
Original Research


Cotton fabric was modified with Na2EDTA using a hydrothermal method and subsequent coordination of Fe(III) ions to produce a EDTA modified cotton fiber Fe complex (Fe-EDTA-Cotton) for the synergistic removal of Cr(VI) species from water through photocatalytic reduction and adsorption processes. High Na2EDTA concentration or hydrothermal temperature increased carboxyl group content (QCOOH) and Fe content (QFe) of the resulting Fe-EDTA-Cotton. Increasing QFe value of the complex or stronger irradiation favored the photocatalytic reduction of Cr(VI) species. Fe-EDTA-Cotton with high QCOOH value exhibited a good adsorption performance of the generated Cr(III) ions during the reaction. Thus, high photocatalytic reduction efficiency and strong Cr(III) ions capturing ability were responsible for the enhanced removal of Cr(VI) species of Fe-EDTA-Cotton as a hybrid photocatalyst in cyclic reuse.


EDTA modified cotton Fe complex Cr(VI) removal Photocatalytic reduction Adsorption 



This research was supported by Innovation & Pioneering Talents Plan of Jiangsu Province (2015-340).

Supplementary material

10570_2019_2598_MOESM1_ESM.pdf (131 kb)
Supplementary material 1 (PDF 131 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Yongchun Dong
    • 1
    • 2
    Email author
  • Peng Wang
    • 1
  • Lu Gan
    • 1
  • Bing Li
    • 3
  • Hongjie Wen
    • 1
  1. 1.Division of Textile Chemistry and Environmental Care, School of Textile Science and EngineeringTianjin Polytechnic UniversityTianjinPeople’s Republic of China
  2. 2.Key Laboratory of Advanced Textile Composite of Ministry of EducationTianjin Polytechnic UniversityTianjinPeople’s Republic of China
  3. 3.Inspection and Quarantine Technology CenterGuangxi Entry-Exit Inspection and Quarantine BureauNanningPeople’s Republic of China

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