Oh, Seogil Kang, Taewook Kim, Honggon Moon, Jungwoo Hong, Surin Yi, Jongheop 2024-01-21T00:32:17Z 2024-01-21T00:32:17Z 2021-09-02 2007-09-01 0376-7388 https://pubs.kist.re.kr/handle/201004/134115 A chemically active inorganic membrane with an ordered mesoporous skin layer was used for separation Of Cu2+, in an aqueous solution. Mesoporous silica was deposited on the surface of a ceramic membrane using an anionic polyelectrolyte (poly(sodium 4-styrene sulfonate)) as an intermediate layer. A strong anionic polyelectrolyte was used to reduce electrostatic repulsion between the membrane surface and mesoporous silica under acidic (pH <= 1) conditions. Next, to provide the membrane and mesoporous skin layer with the ability to reject Cu2+, ions, 3-aminopropyltriethoxysilane (APTES) was grafted onto the surface of the mesoporous skin layer. This modified membrane (CM-MA) was characterized by FE-SENI, TEM and FT-IR. The CM-MA showed a much higher total rejection value (87.08%) than that of the untreated membrane (6.09%). In addition, the CM-MA exhibited a highly selective separation capability for Cu2+ ions in the presence of equimolar amounts of other metal ions (Ni2+, Pb (2+)). (c) 2007 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV FILMS SURFACE GAS NANOCOMPOSITES SPECTROSCOPY COPOLYMER ADSORBENT TRIBLOCK SUBLAYER REMOVAL Preparation of novel ceramic membranes modified by mesoporous silica with 3-aminopropyltriethoxysilane (APTES) and its application to Cu2+ separation in the aqueous phase Article 10.1016/j.memsci.2007.06.006 1 JOURNAL OF MEMBRANE SCIENCE, v.301, no.1-2, pp.118 - 125 JOURNAL OF MEMBRANE SCIENCE 301 1-2 118 125 scie scopus 000249290600014 2-s2.0-34547401532 Engineering, Chemical Polymer Science Engineering Polymer Science Article FILMS SURFACE GAS NANOCOMPOSITES SPECTROSCOPY COPOLYMER ADSORBENT TRIBLOCK SUBLAYER REMOVAL ceramic membrane mesoporous silica grafting APTES Cu2+ ion