PEI/GO-codecorated poly(acrylic acid-co-hydroxyethyl methacrylate) fiber as a carrier to support iron ions and its catalytic performance for methylene blue decolorization

Chen, Shunqiang; Xu, Naiku; Ren, Mengru; Xiao, Changfa; Zhang, Xiangwu

doi:10.1080/10601325.2020.1735940

Cited by 8 publications

(3 citation statements)

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“…After being completely dried in a vacuum oven, the fibers were used once again following the above steps, and the reusability could be evaluated. In addition, iron ions eluted by MB aqueous solution during decolorization were quantified as per the method described in the published paper [ 17 ].

where DE is the decolorization efficiency, %; A 0 is the absorbance of initial MB aqueous solution; A t is the absorbance of MB aqueous solution obtained at a given decolorization time.…”

Section: Methodsmentioning

confidence: 99%

Section: Catalytic Activitymentioning

confidence: 99%

“…In this sense, PTFE fiber is unable to immobilize active iron-based components firmly. Poly(acrylic acid-co-hydroxyethyl methacrylate) (P(AA-co-HEMA)) usually has good spinnability [ 17 , 18 , 19 ], and its fiber can easily bind active iron-based components by the chemical coordination of carboxyl/hydroxyl groups with iron ions. However, P(AA-co-HEMA) has excellent hydrophilicity and thus shows very weak resistance to water swelling, which greatly restricts its application as a carrier.…”

Section: Introductionmentioning

confidence: 99%

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Iron Species-Supporting Hydrophobic and Nonswellable Polytetrafluoroethylene/Poly(acrylic acid-co-hydroxyethyl methacrylate) Composite Fiber and Its Stable Catalytic Activity for Methylene Blue Oxidative Decolorization

Ren

2021

Polymers

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Polytetrafluoroethylene emulsion was ultrasonically mixed with an extremely spinnable poly(acrylic acid-co-hydroxyethyl methacrylate) solution to get a dispersion with good spinnability, and the obtained dispersion was then wet-spun into water-swellable fiber. Crosslinking agents and iron species were simultaneously introduced into the water-swellable fiber through simple impregnation and water swelling. A composite fiber with Fenton reaction-catalyzing function was then fabricated by sequentially conducting crosslinking and sintering treatment. Due to crosslinking-induced good resistance to water swelling and PTFE component-induced hydrophobicity, the composite fiber showed a highly stable activity to catalyze H2O2 to oxidatively decolorize methylene blue (MB). Within nine cycles, the composite fiber could decolorize more than 90% of MB within one minute in the presence of H2O2 and did not show any attenuation in MB decolorization efficiency. The composite fiber still could reduce the total organic carbon of MB aqueous solution from 18.3 to 10.3 mg/L when used for the ninth time. Therefore, it is believable that the prepared fiber has good and broad application prospects in the field of dye wastewater treatment.

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where DE is the decolorization efficiency, %; A 0 is the absorbance of initial MB aqueous solution; A t is the absorbance of MB aqueous solution obtained at a given decolorization time.…”

Section: Methodsmentioning

confidence: 99%

Section: Catalytic Activitymentioning

confidence: 99%