Novel Membrane Emulsification Method of Producing Highly Uniform Silica Particles Using Inexpensive Silica Sources
Апстракт
A membrane emulsification method for production of monodispersed silica-based ion exchange particles through water-in-oil emulsion route is developed. A hydrophobic microsieve membrane with 15 mu m pore size and 200 pm pore spacing was used to produce droplets, with a mean size between 65 and 240 pm containing acidified sodium silicate solution (with 4 and 6 wt% SiO2) in kerosene. After drying, the final silica particles had a mean size in the range between 30 and 70 mu m. Coefficient of variation for both the droplets and particles did not exceed 35%. The most uniform particles had a mean diameter of 40 mu m and coefficient of variation of 17%. The particles were functionalised with 3-aminopropyltrimethoxysilane and used for chemisorption of Cu(II) from an aqueous solution of CuSO4 in a continuous flow stirred cell with slotted pore microfiltration membrane. Functionalised silica particles showed a higher binding affinity toward Cu(II) than nontreated silica particles.
Извор:
Progress in Colloid and Polymer Science, 2012, 139, 7-+Финансирање / пројекти:
- Engineering and Physical Sciences Research Council, UK
Напомена:
- UK Colloids 2011 - International Colloid and Surface Science Symposium, Jul 04-06, 2011, London, England
DOI: 10.1007/978-3-642-28974-3_2
ISSN: 0340-255X
WoS: 000310177800002
Scopus: 2-s2.0-84870678333
Колекције
Институција/група
VinčaTY - CONF AU - Dragosavac, Marijana M. AU - Vladisavljević, Goran T. AU - Holdich, Richard G. AU - Stillwell, Michael T. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6980 AB - A membrane emulsification method for production of monodispersed silica-based ion exchange particles through water-in-oil emulsion route is developed. A hydrophobic microsieve membrane with 15 mu m pore size and 200 pm pore spacing was used to produce droplets, with a mean size between 65 and 240 pm containing acidified sodium silicate solution (with 4 and 6 wt% SiO2) in kerosene. After drying, the final silica particles had a mean size in the range between 30 and 70 mu m. Coefficient of variation for both the droplets and particles did not exceed 35%. The most uniform particles had a mean diameter of 40 mu m and coefficient of variation of 17%. The particles were functionalised with 3-aminopropyltrimethoxysilane and used for chemisorption of Cu(II) from an aqueous solution of CuSO4 in a continuous flow stirred cell with slotted pore microfiltration membrane. Functionalised silica particles showed a higher binding affinity toward Cu(II) than nontreated silica particles. C3 - Progress in Colloid and Polymer Science T1 - Novel Membrane Emulsification Method of Producing Highly Uniform Silica Particles Using Inexpensive Silica Sources VL - 139 SP - 7 EP - + DO - 10.1007/978-3-642-28974-3_2 ER -
@conference{ author = "Dragosavac, Marijana M. and Vladisavljević, Goran T. and Holdich, Richard G. and Stillwell, Michael T.", year = "2012", abstract = "A membrane emulsification method for production of monodispersed silica-based ion exchange particles through water-in-oil emulsion route is developed. A hydrophobic microsieve membrane with 15 mu m pore size and 200 pm pore spacing was used to produce droplets, with a mean size between 65 and 240 pm containing acidified sodium silicate solution (with 4 and 6 wt% SiO2) in kerosene. After drying, the final silica particles had a mean size in the range between 30 and 70 mu m. Coefficient of variation for both the droplets and particles did not exceed 35%. The most uniform particles had a mean diameter of 40 mu m and coefficient of variation of 17%. The particles were functionalised with 3-aminopropyltrimethoxysilane and used for chemisorption of Cu(II) from an aqueous solution of CuSO4 in a continuous flow stirred cell with slotted pore microfiltration membrane. Functionalised silica particles showed a higher binding affinity toward Cu(II) than nontreated silica particles.", journal = "Progress in Colloid and Polymer Science", title = "Novel Membrane Emulsification Method of Producing Highly Uniform Silica Particles Using Inexpensive Silica Sources", volume = "139", pages = "7-+", doi = "10.1007/978-3-642-28974-3_2" }
Dragosavac, M. M., Vladisavljević, G. T., Holdich, R. G.,& Stillwell, M. T.. (2012). Novel Membrane Emulsification Method of Producing Highly Uniform Silica Particles Using Inexpensive Silica Sources. in Progress in Colloid and Polymer Science, 139, 7-+. https://doi.org/10.1007/978-3-642-28974-3_2
Dragosavac MM, Vladisavljević GT, Holdich RG, Stillwell MT. Novel Membrane Emulsification Method of Producing Highly Uniform Silica Particles Using Inexpensive Silica Sources. in Progress in Colloid and Polymer Science. 2012;139:7-+. doi:10.1007/978-3-642-28974-3_2 .
Dragosavac, Marijana M., Vladisavljević, Goran T., Holdich, Richard G., Stillwell, Michael T., "Novel Membrane Emulsification Method of Producing Highly Uniform Silica Particles Using Inexpensive Silica Sources" in Progress in Colloid and Polymer Science, 139 (2012):7-+, https://doi.org/10.1007/978-3-642-28974-3_2 . .