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Insight into the
Performance of Polypropylene-Based
Fibrous Filters with Polyvinylimidazole Grafted Surfaces for Separation
of Nonsteroidal Drugs in an Aqueous Medium
Yujia Cui (632570)
Shuxian Shi (1727692)
Xiaonong Chen (158160)
Biophysics
Biochemistry
Space Science
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Marine Biology
step uv grafting
ppf – pvi
polyvinylimidazole grafted surfaces
open porous substrate
based fibrous filters
rich adsorption membrane
water flux
water contaminated
unique stability
switching ph
meltblown fabric
low pressure
imidazolium ion
excellent selectivity
elution even
electrostatic interactions
efficient desorption
aqueous mixtures
aqueous medium
9 mg
5 kpa
100 l
10 cycles
To address global NSAID water pollution, an imidazolium
ion-rich
adsorption membrane (PPF–PVI) was fabricated via simple one-step
UV grafting of vinylimidazole on meltblown fabric. Benefiting from
the open porous substrate, the resultant PPF–PVI exhibited
a water flux up to 62,100 L/m<sup>2</sup>·h at a low pressure
of 1.5 kPa, while the grafted functional chains imparted a maximum
DCF adsorption capacity of 82.9 mg/g. Driven by electrostatic interactions,
PPF–PVI selectively enriches NSAIDs from aqueous mixtures with
a separation factor as high as 80.6. Efficient desorption can be achieved
by switching pH, while the robust covalent grafting ensures superior
acid–alkali stability throughout the entire adsorption–desorption
process. The PPF–PVI membrane retained its performance (>95%)
for 10 cycles of adsorption-elution even under true river water conditions.
Excellent selectivity, high permeability, and unique stability of
the PPF–PVI demonstrate a pathway for remediation of water
contaminated by NSAIDs and recovery of the drugs.
2026-09-29T00:00:00Z
Text
Journal contribution
10.1021/acs.iecr.6c02673.s001
https://figshare.com/articles/journal_contribution/Insight_into_the_Performance_of_Polypropylene-Based_Fibrous_Filters_with_Polyvinylimidazole_Grafted_Surfaces_for_Separation_of_Nonsteroidal_Drugs_in_an_Aqueous_Medium/34028600
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