Calcium alginate hydrogel filtration membrane with excellent anti-fouling property and controlled separation performance

Zhao, Kongyin; Zhang, Xinxin; Wei, Junfu; Li, Jiajie; Zhou, Xiangyu; Liu, Dong; Liu, Zhibo; Li, Jianxin

doi:10.1016/j.memsci.2015.05.075

Cited by 122 publications

(32 citation statements)

References 34 publications

(37 reference statements)

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“…A membrane evaluation device from Tianjin Motimo Membrane Technology Co., Ltd. (Tianjin, China) was used to measure the flux and rejection rate of the kaolin/CaAlg filtration membrane [25]. Crossflow filtration of the solution containing emulsified oil and BSA solution was employed to evaluate the anti-fouling performance of the kaolin/CaAlg filtration membrane.…”

Section: Evaluation Of Anti-fouling Properties Of the Kaolin/caalg Mementioning

confidence: 99%

“…where V is the permeate volume (L), A is the membrane area (m 2 ), and t is the time (h). Dyes rejection values of kaolin/CaAlg membrane were calculated by measuring the dyes concentrations in the feed and in permeate according to the literature [25,30]. In this paper, Brilliant Blue G250 (M W = 854.02), Congo Red (M W = 696.68), and methylene orange (M W = 332.40) were used and the concentration of each dye feed solution was 100 ppm.…”

Section: Evaluation Of Anti-fouling Properties Of the Kaolin/caalg Mementioning

confidence: 99%

“…Hence, the flux of the membrane increased with the increase of operating pressure. When the pressure was above 0.22 MPa, the connective pores collapsed, but the trans-membranous pressure changed slightly, so the flux reached a constant value [25].…”

Section: Granulometric Analysis Of Kaolin Powders In Watermentioning

confidence: 99%

“…Alginic acid is abundantly obtained as a marine biological resource, being especially produced by brown-algae seaweed, and alginate has been widely used in food industry [21], pharmaceutical and tissue engineering [22][23][24]. Our previous effort has focused on the preparation of a free-standing calcium alginate (CaAlg) filtration membrane using polyethylene glycol (PEG) as porogen agent [25]. The anti-fouling property, protein rejection rate and flux of the CaAlg filtration membranes were investigated on different conditions.…”

Section: Introductionmentioning

confidence: 99%

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Removal of Dyes and Cd2+ in Water by Kaolin/Calcium Alginate Filtration Membrane

Zhao

Liu

et al. 2019

Coatings

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Kaolin/calcium alginate (kaolin/CaAlg) free-standing membranes were prepared by adding different amounts of Kaolin into the sodium alginate (NaAlg) casting solution and crosslinked by Ca2+ using urea as porogen agent. The morphology of the kaolin/CaAlg filtration membrane was characterized by scanning electron microscope (SEM). Then the kaolin/CaAlg membrane was used for the removal of dyes and Cd2+. The kaolin significantly improved the mechanical behavior and flux of the kaolin/CaAlg membrane. The flux reached 17.53 L/m2·h at 0.1 MPa and when the content of Kaolin in NaAlg was 70 wt.%. The filtration of BSA solution and oil-water emulsion indicated that the kaolin/CaAlg composite filtration membrane exhibited good anti-fouling properties. The rejection of Brilliant Blue G250, Congo red, and methylene blue by the kaolin/CaAlg filtration membrane was 100%, 95.22%, and 62.86%, respectively. The removal rate of Cd2+ reached 99.69%, with a flux of 17.06 L/m2·h at 0.1 MPa.

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Section: Evaluation Of Anti-fouling Properties Of the Kaolin/caalg Mementioning

confidence: 99%

Section: Evaluation Of Anti-fouling Properties Of the Kaolin/caalg Mementioning

confidence: 99%

Section: Granulometric Analysis Of Kaolin Powders In Watermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of Dyes and Cd2+ in Water by Kaolin/Calcium Alginate Filtration Membrane

Zhao

Liu

et al. 2019

Coatings

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“…prepared a calcium alginate (CaAlg) hydrogel filtration membrane using polyethylene glycol (PEG) as the pore‐forming agent. The CaAlg membrane exhibits excellent anti‐fouling properties on the filtration of lysozyme and bovine serum albumin (BSA) solutions (Zhao, Zhang, et al , ). Kashima et al .…”

Section: Introductionmentioning

confidence: 99%

Preparation of free‐standing chitosan membranes for Chlorella vulgaris harvest and examination on suppression of algae‐fouling properties

Wang

Liu

et al. 2018

Water & Environment J

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Free‐standing chitosan membranes were prepared using genipin as crosslinker, using several molecular weights of polyethylene glycol (PEG) as a void‐forming agent. The membrane surface formation and chitosan polymer chain crosslinking were confirmed through SEM and FTIR, respectively. The water flux was remarkably increased with increasing molecular weight of PEG employed in preparation of composite chitosan membrane (J∝[PEG(MW)]0.85), it appeared over 6000 Da of PEG. During Chlorella vulgaris harvest using chitosan membranes, focus was made on algae‐fouling caused by the deposition of cells and extracellular organic matter, and it was found that membranes employing lower molecular weight of PEG (under 10000 Da) had been maintaining the high flux recovery after alternating filtration cycles, in addition to PEG20000 containing membrane. The chitosan membrane prepared with lower molecular weight of PEG exhibited better suppression of algae‐fouling properties. The Chlorella vulgaris harvesting results indicated that cell rejection rate reached above 98%.

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Layer‐by‐Layer Construction of Cu²⁺/Alginate Multilayer Modified Ultrafiltration Membrane with Bioinspired Superwetting Property for High‐Efficient Crude‐Oil‐in‐Water Emulsion Separation

Gao

Zhu

Wang

et al. 2018

Adv Funct Materials

271

109

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Due to highly adhesive property, crude oil is easier to adhere on foul filtration membranes. Separation of crude oil‐in‐water emulsion is a continuing tough work. Hydrogels with low‐adhesive superoleophobicity are ideal materials for modifying filtration membranes to achieve efficient and antifouling separation of crude oil‐in‐water emulsion. A key challenge in fabricating the hydrogel modified filtration membranes is to design an ultrathin hydrogel layer with sufficient anti‐crude‐oil‐fouling ability and with controllable thickness, thus not blocking the micro‐ and nanosized membrane pores. Inspired by the novel harsh‐environment‐tolerant superoleophobicity of alginate‐rich seaweed, the construction of an ultrathin Cu2+/alginate hydrogel multilayer with controllable thickness at the nanometer scale on a polymer filtration membrane via a layer‐by‐layer self‐assembly method is achieved. Both the nanosized pores and the high flux of original membrane are well‐maintained. The Cu2+/alginate multilayer modified ultrafiltration membrane behaves a biomimetic superhydrophilicity, underwater superoleophobicity, and antifouling ability for crude oil. It is capable of efficiently separating crude oil‐in‐water emulsion with a high water flux of 1230 L m−2 h−1 bar−1, an ultrahigh efficiency of 99.8%, and an outstanding antifouling and cyclic ability. What's more, the membrane exhibits good salt‐tolerance, antibacterial ability, and long‐term stability.

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Calcium alginate hydrogel filtration membrane with excellent anti-fouling property and controlled separation performance

Cited by 122 publications

References 34 publications

Removal of Dyes and Cd2+ in Water by Kaolin/Calcium Alginate Filtration Membrane

Removal of Dyes and Cd2+ in Water by Kaolin/Calcium Alginate Filtration Membrane

Preparation of free‐standing chitosan membranes for Chlorella vulgaris harvest and examination on suppression of algae‐fouling properties

Layer‐by‐Layer Construction of Cu²⁺/Alginate Multilayer Modified Ultrafiltration Membrane with Bioinspired Superwetting Property for High‐Efficient Crude‐Oil‐in‐Water Emulsion Separation

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Calcium alginate hydrogel filtration membrane with excellent anti-fouling property and controlled separation performance

Cited by 122 publications

References 34 publications

Removal of Dyes and Cd2+ in Water by Kaolin/Calcium Alginate Filtration Membrane

Removal of Dyes and Cd2+ in Water by Kaolin/Calcium Alginate Filtration Membrane

Preparation of free‐standing chitosan membranes for Chlorella vulgaris harvest and examination on suppression of algae‐fouling properties

Layer‐by‐Layer Construction of Cu2+/Alginate Multilayer Modified Ultrafiltration Membrane with Bioinspired Superwetting Property for High‐Efficient Crude‐Oil‐in‐Water Emulsion Separation

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Product

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About

Layer‐by‐Layer Construction of Cu²⁺/Alginate Multilayer Modified Ultrafiltration Membrane with Bioinspired Superwetting Property for High‐Efficient Crude‐Oil‐in‐Water Emulsion Separation