On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranes
Triple-layer membranes were prepared using a combination of poly(piperazine-amide), poly(vinyl alcohol), and polysulfone membranes. The poly(piperazine-amide) and poly(vinyl alcohol) layers are coated alternately and vice-versa on polysulfone membranes. The effects of changing the sequence of the PV...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Desalination and Water Treatment |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398625000104 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850076877948977152 |
|---|---|
| author | Jhanvi Lakhani Mayank Saxena Amit Bhattacharya |
| author_facet | Jhanvi Lakhani Mayank Saxena Amit Bhattacharya |
| author_sort | Jhanvi Lakhani |
| collection | DOAJ |
| description | Triple-layer membranes were prepared using a combination of poly(piperazine-amide), poly(vinyl alcohol), and polysulfone membranes. The poly(piperazine-amide) and poly(vinyl alcohol) layers are coated alternately and vice-versa on polysulfone membranes. The effects of changing the sequence of the PVA-MA layer in the three-layer system of poly(piperazine-amide) composite membranes on physical parameters (viz. surface roughness, water contact angle, and zeta potential) of the skin layer were studied. The separation performances of triple-layer membranes were evaluated through pure water flux and defluoridation. Scanning electron microscopy (SEM), and atomic force microscopy (AFM) measurements were utilized for visual characterization of modified membranes. The defluoridation performances of Memb-I, (R% 91, PVA-MA serves as the inter-layer) were always better compared to Memb-II R% 77.4, in which PVA-MA served as the surface layer. The defluoridation performances of membranes of both types decreased as the total dissolved solutes (TDS) increased of water matrices (water matrix-I > water matrix-II > water matrix- III). The time-dependence defluoridation performance suggested that there was little deterioration in separation and more downtrend followed as the TDS of water matrices increased. |
| format | Article |
| id | doaj-art-e9d90dc85bd44427a03216e8614084f0 |
| institution | DOAJ |
| issn | 1944-3986 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-e9d90dc85bd44427a03216e8614084f02025-08-20T02:45:55ZengElsevierDesalination and Water Treatment1944-39862025-01-0132110099410.1016/j.dwt.2025.100994On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranesJhanvi Lakhani0Mayank Saxena1Amit Bhattacharya2Membrane Science and Separation Technology Division, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, Gujarat 364002, IndiaMembrane Science and Separation Technology Division, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, Gujarat 364002, IndiaCorresponding author.; Membrane Science and Separation Technology Division, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, Gujarat 364002, IndiaTriple-layer membranes were prepared using a combination of poly(piperazine-amide), poly(vinyl alcohol), and polysulfone membranes. The poly(piperazine-amide) and poly(vinyl alcohol) layers are coated alternately and vice-versa on polysulfone membranes. The effects of changing the sequence of the PVA-MA layer in the three-layer system of poly(piperazine-amide) composite membranes on physical parameters (viz. surface roughness, water contact angle, and zeta potential) of the skin layer were studied. The separation performances of triple-layer membranes were evaluated through pure water flux and defluoridation. Scanning electron microscopy (SEM), and atomic force microscopy (AFM) measurements were utilized for visual characterization of modified membranes. The defluoridation performances of Memb-I, (R% 91, PVA-MA serves as the inter-layer) were always better compared to Memb-II R% 77.4, in which PVA-MA served as the surface layer. The defluoridation performances of membranes of both types decreased as the total dissolved solutes (TDS) increased of water matrices (water matrix-I > water matrix-II > water matrix- III). The time-dependence defluoridation performance suggested that there was little deterioration in separation and more downtrend followed as the TDS of water matrices increased.http://www.sciencedirect.com/science/article/pii/S1944398625000104MembraneDefluoridationPolyvinyl alcoholPoly (piperazine-amide) |
| spellingShingle | Jhanvi Lakhani Mayank Saxena Amit Bhattacharya On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranes Desalination and Water Treatment Membrane Defluoridation Polyvinyl alcohol Poly (piperazine-amide) |
| title | On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranes |
| title_full | On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranes |
| title_fullStr | On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranes |
| title_full_unstemmed | On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranes |
| title_short | On the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly (piperazine-amide) composite membranes |
| title_sort | on the difference in defluoridation performance of interchanging polyvinyl alcohol coated layer in poly piperazine amide composite membranes |
| topic | Membrane Defluoridation Polyvinyl alcohol Poly (piperazine-amide) |
| url | http://www.sciencedirect.com/science/article/pii/S1944398625000104 |
| work_keys_str_mv | AT jhanvilakhani onthedifferenceindefluoridationperformanceofinterchangingpolyvinylalcoholcoatedlayerinpolypiperazineamidecompositemembranes AT mayanksaxena onthedifferenceindefluoridationperformanceofinterchangingpolyvinylalcoholcoatedlayerinpolypiperazineamidecompositemembranes AT amitbhattacharya onthedifferenceindefluoridationperformanceofinterchangingpolyvinylalcoholcoatedlayerinpolypiperazineamidecompositemembranes |