BSA and humic acid separation from aqueous stream using polydopamine coated PVDF ultrafiltration membranes

Saraswathi, Meenakshi Sundaram Sri Abirami; Kausalya, R.; Kaleekkal, Noel Jacob; Rana, Dipak; Nagendran, A.

doi:10.1016/j.jece.2017.05.051

Cited by 86 publications

(25 citation statements)

References 39 publications

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“…As another essential assessment of the prepared membranes, the antifouling propensity of the prepared membranes was evaluated by the application of PWP again after back flushing. The results are reported in terms of FRR, which is a good indication of the membrane fouling recovery after backwashing . The results of the FRR for the modified membranes and pristine PVDF membrane before and after UV exposure are shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Polydopamine‐coated poly(vinylidene fluoride) membranes with high ultraviolet resistance and antifouling properties for a photocatalytic membrane reactor

Muchtar

Wahab

Fang

et al. 2018

J of Applied Polymer Sci

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We modified poly(vinylidene fluoride) (PVDF) membranes with a polydopamine (PDA) coating for photocatalytic membrane reactor application with appropriate UV resistance and studied the effects of the PDA coating conditions (i.e., coating time and dopamine concentration) and UV irradiation time on the modified PVDF membrane properties. The PVDF membrane that was surface‐coated with the appropriate dopamine solution concentration and coating time played a key role in controlling the membrane properties and in protecting the modified membrane against UV radiation. The optimization of the coating condition not only completely protected the modified membrane from free‐radical attack initiated through UV irradiation but also improved the membrane hydrophilicity, antifouling properties, filtration performance, and mechanical strength of the membrane. UV irradiation of the membrane that was surface‐coated with a high‐concentration dopamine solution for a long coating time resulted in a higher mechanical strength than that of the membrane without the application of UV irradiation. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47312.

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Section: Resultsmentioning

confidence: 99%

Polydopamine‐coated poly(vinylidene fluoride) membranes with high ultraviolet resistance and antifouling properties for a photocatalytic membrane reactor

Muchtar

Wahab

Fang

et al. 2018

J of Applied Polymer Sci

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“…PDA has been used to modify various polymeric membranes, such as polysulfone, polyethersulfone, polyacrylamide, polyethylene, and polyvinylidene fluoride . They used the same coating method with various PDA concentration, coating time, and pH.…”

Section: Introductionmentioning

confidence: 99%

“…PDA has been used to modify various polymeric membranes, such as polysulfone, [26][27][28] polyethersulfone, 29,30 polyacrylamide, 31 polyethylene, 32,33 and polyvinylidene fluoride. 33,34 They used the same coating method with various PDA concentration, coating time, and pH. In general, the PDA coating was able to increase membrane hydrophilicity as evidenced by water contact angle less than 50°and decrease protein absorption due to the antibacterial properties.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic modification of polypropylene ultrafiltration membrane by air‐assisted polydopamine coating

Wardani

Ariono

Subagjo

et al. 2019

Polymers for Advanced Techs

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Coating by a mussel inspired polydopamine (PDA) is a simple and promising strategy to modify the hydrophilicity of polymer membrane surfaces. In this work, PDA coating was used to modify polypropylene (PP) ultrafiltration hollow fiber membrane. PDA coating parameters, ie, solution concentration and coating time were varied, and the effect of those parameters on membrane morphology, porosity, water contact angle, and pure water flux was investigated. In addition, air‐assisted PDA coating process was also conducted by channelling the air through PP membrane to avoid pore blocking and prevent water flux decline. The results showed that PDA coating successfully improved the hydrophilicity of PP membrane indicated by the decrease of water contact angle from 110° to 67° after coated by 3 g/L of PDA solution for 3 hours. The addition of air permeation on membrane lumen also increased pure water flux up to 511.2 L/m2.h, a 270% increase from unmodified PP membrane. It might be associated to the pore blocking prevention that has been proven by SEM image and the membrane porosity that was increased about 4%.

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“…One such approach is to use the specific interaction of adsorbents together with membrane‐enhanced separation for effective removal of drugs from the water. Use of coated polymeric microfiltration (MF) and ultrafiltration (UF) membranes has been very promising for the removal of micropollutants . Fang et al used polydopamine for coating the internal pores of an asymmetric polyethersulfone UF membrane for capturing heavy metals (Pb 2+ , Cd 2+, and Cu 2+ ions) from water.…”

Section: Introductionmentioning

confidence: 99%

Sericin‐coated polymeric microfiltration membrane for removal of drug‐based micropollutants

Verma

Subbiah

2019

J of Chemical Tech & Biotech

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BACKGROUND: Drug-based micropollutants present in water sources are proven to be persistent, bioactive and toxic even at low concentration for human consumption. Therefore, the complete removal of the drugs from water is crucial to avoid long-term medical complications. In the present study, a novel sericin-coated adsorptive microfiltration (MF) membrane is used for the removal of drug-based micropollutants. RESULTS:The sericin-coated membrane was tested for removal of different classes of drugs from water. The membrane completely removed NSAIDs and antibiotics from water at 20 g L −1 concentration. The adsorption mechanism was profoundly influenced by charge-based interaction and hydrogen bonding, hence charged anionic drugs were more effectively removed than uncharged drugs. In multidrug mixtures, the removal efficiency was observed in the following sequence; ibuprofen > diclofenac > amoxicillin > ciprofloxacin > estrone > -estradiol. Desorption of the drugs from the membrane surface can be effectively controlled by altering the pH of the membrane-cleaning solution. Presence of other inorganic salts in the aqueous drug solution did not interfere with the removal efficiency of the sericin-coated membrane. The performance of sericin-coated membrane was studied using continuous adsorptive membrane filtration approach. The dynamic adsorption behavior of a fixed-bed membrane column was predicted using Bohart-Adams model. The model can predict the adsorption breakthrough curve with minimum experimental error.CONCLUSIONS: This study reveals the unique application of sericin-coated MF membrane for effective removal of drug-based micropollutants from water, and demonstrates its easy regeneration and effectiveness for multiple cycles of filtration.

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BSA and humic acid separation from aqueous stream using polydopamine coated PVDF ultrafiltration membranes

Cited by 86 publications

References 39 publications

Polydopamine‐coated poly(vinylidene fluoride) membranes with high ultraviolet resistance and antifouling properties for a photocatalytic membrane reactor

Polydopamine‐coated poly(vinylidene fluoride) membranes with high ultraviolet resistance and antifouling properties for a photocatalytic membrane reactor

Hydrophilic modification of polypropylene ultrafiltration membrane by air‐assisted polydopamine coating

Sericin‐coated polymeric microfiltration membrane for removal of drug‐based micropollutants

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