Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore Structure
The structural characteristics of membrane support directly affect the performance of carrier facilitated transport membrane. A highly porous PolyHIPE impregnated with Aliquat 336 is proposed for Cr(VI) separation. PolyHIPE consisting of poly(styrene-co-2-ethylhexyl acrylate) copolymer crosslinked w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-03-01
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| Series: | Membranes |
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| Online Access: | http://www.mdpi.com/2077-0375/8/1/11 |
| _version_ | 1797715248228073472 |
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| author | Jyh-Herng Chen Thi Tuyet Mai Le Kai-Chung Hsu |
| author_facet | Jyh-Herng Chen Thi Tuyet Mai Le Kai-Chung Hsu |
| author_sort | Jyh-Herng Chen |
| collection | DOAJ |
| description | The structural characteristics of membrane support directly affect the performance of carrier facilitated transport membrane. A highly porous PolyHIPE impregnated with Aliquat 336 is proposed for Cr(VI) separation. PolyHIPE consisting of poly(styrene-co-2-ethylhexyl acrylate) copolymer crosslinked with divinylbenzene has the pore structure characteristic of large pore spaces interconnected with small window throats. The unique pore structure provides the membrane with high flux and stability. The experimental results indicate that the effective diffusion coefficient D* of Cr(VI) through Aliquat 336/PolyHIPE membrane is as high as 1.75 × 10−11 m2 s−1. Transport study shows that the diffusion of Cr(VI) through Aliquat 336/PolyHIPE membrane can be attributed to the jumping transport mechanism. The hydraulic stability experiment shows that the membrane is quite stable, with recovery rates remaining at 95%, even after 10 consecutive cycles of operation. The separation study demonstrates the potential application of this new type of membrane for Cr(VI) recovery. |
| first_indexed | 2024-03-12T08:04:06Z |
| format | Article |
| id | doaj.art-977fa701ff2b43ceafd6080dea79f861 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-12T08:04:06Z |
| publishDate | 2018-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-977fa701ff2b43ceafd6080dea79f8612023-09-02T19:40:06ZengMDPI AGMembranes2077-03752018-03-01811110.3390/membranes8010011membranes8010011Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore StructureJyh-Herng Chen0Thi Tuyet Mai Le1Kai-Chung Hsu2Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao East Road, Taipei 10608, TaiwanCollege of Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao East Road, Taipei 10608, TaiwanCollege of Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao East Road, Taipei 10608, TaiwanThe structural characteristics of membrane support directly affect the performance of carrier facilitated transport membrane. A highly porous PolyHIPE impregnated with Aliquat 336 is proposed for Cr(VI) separation. PolyHIPE consisting of poly(styrene-co-2-ethylhexyl acrylate) copolymer crosslinked with divinylbenzene has the pore structure characteristic of large pore spaces interconnected with small window throats. The unique pore structure provides the membrane with high flux and stability. The experimental results indicate that the effective diffusion coefficient D* of Cr(VI) through Aliquat 336/PolyHIPE membrane is as high as 1.75 × 10−11 m2 s−1. Transport study shows that the diffusion of Cr(VI) through Aliquat 336/PolyHIPE membrane can be attributed to the jumping transport mechanism. The hydraulic stability experiment shows that the membrane is quite stable, with recovery rates remaining at 95%, even after 10 consecutive cycles of operation. The separation study demonstrates the potential application of this new type of membrane for Cr(VI) recovery.http://www.mdpi.com/2077-0375/8/1/11PolyHIPEpore structureCr(VI)diffusion coefficienttransport study |
| spellingShingle | Jyh-Herng Chen Thi Tuyet Mai Le Kai-Chung Hsu Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore Structure Membranes PolyHIPE pore structure Cr(VI) diffusion coefficient transport study |
| title | Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore Structure |
| title_full | Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore Structure |
| title_fullStr | Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore Structure |
| title_full_unstemmed | Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore Structure |
| title_short | Application of PolyHIPE Membrane with Tricaprylmethylammonium Chloride for Cr(VI) Ion Separation: Parameters and Mechanism of Transport Relating to the Pore Structure |
| title_sort | application of polyhipe membrane with tricaprylmethylammonium chloride for cr vi ion separation parameters and mechanism of transport relating to the pore structure |
| topic | PolyHIPE pore structure Cr(VI) diffusion coefficient transport study |
| url | http://www.mdpi.com/2077-0375/8/1/11 |
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