Incorporation of cross-linked poly(AA-co-ACMO) copolymer with pH responsive and hydrophilic properties to polysulfone ultrafiltration membrane for the mitigation of fouling behaviour

Saini, Bharti; Khuntia, Snigdha; Sinha, Manish Kumar

doi:10.1016/j.memsci.2018.11.017

Cited by 31 publications

(16 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The prepared membranes had an average pore size range below 1 µm which was quite suitable for many industrial and municipal separation applications. Various researchers have also used membranes with such pore size range for the separation of salts, humic acid, BSA, and oil from aqueous solutions by using a membrane with this pore size range [37][38][39][40][41] .…”

Section: Discussionmentioning

confidence: 99%

Preparation of Hydrophilic Bentonite Grafted Mixed Matrix Polyvinylchloride Membrane With Superior Hydrophilicity

Kumar¹,

Dixit²,

Yadav³

2019

RJC

View full text Add to dashboard Cite

This research study, by using a non-solvent induced phase separation method, an approach to prepare polyvinyl chloride membranes grafted with hydrophilic Bentonite nano-particles was developed. The results of morphological studies showed that all the membranes have asymmetric structure and the number of pores increased as well as mean pore radius was varied by the addition of hydrophilic Bentonite. The Energy-dispersive X-ray spectroscopy and Xray diffraction analysis of hydrophilic Bentonite embedded polyvinyl chloride membranes also supported the proper interaction between the polymer and inorganic nanoparticle. Change in contact angle data showed that the surface of membrane become more hydrophilic with increasing hydrophilic Bentonite content. Moreover, pure water flux of membranes was also calculated by using membrane in added end filtration setup. Flux was increased with increasing hydrophilic Bentonite content as a result of an increase in hydrophilicity. The resulting membranes also hada higher magnitude of tensile strength as well as elongation at break. However, agglomeration was observed for 1.5 and higher wt. % of hydrophilic bentonite (HB) that adversely affected the membrane performance.

show abstract

Section: Discussionmentioning

confidence: 99%

Preparation of Hydrophilic Bentonite Grafted Mixed Matrix Polyvinylchloride Membrane With Superior Hydrophilicity

Kumar¹,

Dixit²,

Yadav³

2019

RJC

View full text Add to dashboard Cite

show abstract

“…A strong absorbance at 1172 cm −1 is found for the PVDF polymer attributable to the stretching vibration of the C F bond, 37 and the representative frequencies of CF 2 groups 38 at 1402, 1070 and 876 cm −1 could noticeably be recognized. 39,40 In the characteristics peak of PVDF at 486 cm −1 , a slight shift from 486 to 480 cm −1 was observed in the hybrid membrane due to the inclusion of LiBr. Furthermore, the addition of LiBr, intensities of characteristics peaks of PVDF gets reduced.…”

Section: Functional Groups Analysismentioning

confidence: 97%

“…The rough surface of the hybrid membrane is the indication of the improved pore density or porosity of the membrane, thus the increased flux is expected with the addition of LiBr content. LLDP experiments were performed using a waterisobutanol-methanol mixture (vol/vol) in dead-end filtration set up as per the procedure mentioned in our previous work 39 to determine the morphology (average pore number percentage and average pore size) of the plain and blended membranes. From Figure 5(a), it can be seen that the maximum percentage of the pore number was nearly 17%.…”

Section: Morphological Analysismentioning

confidence: 99%

Synergetic effects of organic and inorganic additives on improvement in hydrophilicity and performance of PVDF antifouling ultrafiltration membrane for removal of natural organic material from water

Saini

Sinha

2021

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Surrounding vegetation, animal, human and microbiological decomposition are the strong source of humic acid (HA) falling into the surface water bodies through rain runoff in the monsoon. HA contains various functional groups, such as carboxylic, phenolic, hydroxyl, and quinine, which are the major foulant. Contact of HA may have an adversarial health issue to human beings namely goiter, black foot, and cancer disease. The maximum permissible limit of HA in drinking water should be less than 2 ppm as per the Environmental Protection Agency (EPA). The membrane technology has prevailed a prominent place worldwide in chemical, water and wastewater treatment technologies. The proposed work is focused on the blending of organic-water soluble polymer polyethylene glycol 6000 as a pore-forming agent and inorganic salt lithium bromide (LiBr) as membrane morphology modifier with polyvinylidene fluoride host polymer in the N,N-Dimethylacetamide solvent. All fabricated membranes were characterized for functional groups and morphology. The total number of pores per unit surface area of membrane for membranes M-LiBr-0, M-LiBr-1, M-LiBr-2, and M-LiBr-3 are 2 × 10 13 , 2.3 × 10 14 , 2.7 × 10 14 and 2.82 × 10 14 , respectively. The static water contact angle was decreased from 68.2 to 50.6 with an increase in the content of LiBr from 0 to 3 wt%. The order of pure water flux and hydraulic permeability of the membrane was M-LiBr-0 < M-LiBr-1 < M-LiBr-2 < M-LiBr-3. The HA rejection of the membrane was also increased from 90.13% to 96.

show abstract

“…12,13 Numerous techniques, e.g. physical blending, 14 chemical grafting 15,16 and surface modification, 17 have been utilized recently to enhance the hydrophilicity of PVDF membranes, among which blending of organic and inorganic additives with polymeric materials is considered a simple and efficient method. [18][19][20] Generally, the common hydrophilic polymers employed for this purpose are polyvinylpyrrolidone (PVP) 1 and polyethylene glycol.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinylidene fluoride) (PVDF)/PVDF‐g‐polyvinylpyrrolidone (PVP)/TiO₂ mixed matrix nanofiltration membranes: preparation and characterization

Mahdavi

Mazinani

Heidari

2020

Polymer International

View full text Add to dashboard Cite

In this paper, the effect of poly(vinylidene fluoride) (PVDF)-g-polyvinylpyrrolidone (PVP) and nano-TiO 2 , as organic and inorganic additives, respectively, on the antifouling properties of PVDF nanofiltration membranes was studied. PVDF-g-PVP/TiO 2 mixed matrix membranes were prepared using the phase inversion method. The PVDF-g-PVP was synthesized via the atom transfer radical polymerization technique and characterized using 1 H NMR, Fourier transform infrared (FTIR) spectroscopy and TGA. The characterization of prepared membranes was carried out using SEM, field emission scanning electron microscopy, FTIR and contact angle analyses; and porosity, pure water flux, bovine serum albumin solution filtration and antifouling experiments were also studied. According to the results, the membranes could be successfully modified by using PVDF-g-PVP and nano-TiO 2 additives. The hydrophilicity of the modified membranes increased, leading to a decrease in contact angle values and an increase in water flux, pore size and porosity of the membranes. Furthermore, compared with neat PVDF membranes, the modified membranes showed high rejection (95.35%) of bovine serum albumin solution. The water flux recovery ratio of the modified membranes also reached 87.64%, indicating a considerable improvement in antifouling properties in comparison with the neat membrane.

show abstract

Incorporation of cross-linked poly(AA-co-ACMO) copolymer with pH responsive and hydrophilic properties to polysulfone ultrafiltration membrane for the mitigation of fouling behaviour

Cited by 31 publications

References 50 publications

Preparation of Hydrophilic Bentonite Grafted Mixed Matrix Polyvinylchloride Membrane With Superior Hydrophilicity

Preparation of Hydrophilic Bentonite Grafted Mixed Matrix Polyvinylchloride Membrane With Superior Hydrophilicity

Synergetic effects of organic and inorganic additives on improvement in hydrophilicity and performance of PVDF antifouling ultrafiltration membrane for removal of natural organic material from water

Poly(vinylidene fluoride) (PVDF)/PVDF‐g‐polyvinylpyrrolidone (PVP)/TiO₂ mixed matrix nanofiltration membranes: preparation and characterization

Contact Info

Product

Resources

About

Incorporation of cross-linked poly(AA-co-ACMO) copolymer with pH responsive and hydrophilic properties to polysulfone ultrafiltration membrane for the mitigation of fouling behaviour

Cited by 31 publications

References 50 publications

Preparation of Hydrophilic Bentonite Grafted Mixed Matrix Polyvinylchloride Membrane With Superior Hydrophilicity

Preparation of Hydrophilic Bentonite Grafted Mixed Matrix Polyvinylchloride Membrane With Superior Hydrophilicity

Synergetic effects of organic and inorganic additives on improvement in hydrophilicity and performance of PVDF antifouling ultrafiltration membrane for removal of natural organic material from water

Poly(vinylidene fluoride) (PVDF)/PVDF‐g‐polyvinylpyrrolidone (PVP)/TiO2 mixed matrix nanofiltration membranes: preparation and characterization

Contact Info

Product

Resources

About

Poly(vinylidene fluoride) (PVDF)/PVDF‐g‐polyvinylpyrrolidone (PVP)/TiO₂ mixed matrix nanofiltration membranes: preparation and characterization