Elma, M. and Mujiyanti, D.R. and Ismail, N.M. and Bilad, M.R. and Rahma, A. and Rahman, S.K. and Fitriani and Rakhman, A. and Rampun, E.L.A. (2020) Development of hybrid and templated silica�p123 membranes for brackish water desalination. Polymers, 12 (11). pp. 1-13. ISSN 20734360
Full text not available from this repository.Abstract
Water scarcity is still a pressing issue in many regions. The application of membrane technology through water desalination to convert brackish to potable water is a promising technology to solve this issue. This study compared the performance of templated TEOS�P123 and ES40�P123 hybrid membranes for brackish water desalination. The membranes were prepared by the sol�gel method by employing tetraethyl orthosilicate (TEOS) for the carbon�templated silica (soft template) and ethyl silicate (ES40) for the hybrid organo�silica. Both sols were templated by adding 35 wt. of pluronic triblock copolymer (P123) as the carbon source. The silica�templated sols were dip�coated onto alumina support (four layers) and were calcined by using the RTP (rapid thermal processing) method. The prepared membranes were tested using pervaporation set up at room temperature (~25 °C) using brackish water (0.3 and 1 wt.) as the feed. It was found that the hybrid membrane exhibited the highest specific surface area (6.72 m2�g�1), pore size (3.67 nm), and pore volume (0.45 cm3�g�1). The hybrid ES40�P123 was twice thicker (2 μm) than TEOS�P123� templated membranes (1 μm). Lastly, the hybrid ES40�P123 displayed highest water flux of 6.2 kg�m�2�h�1. Both membranes showed excellent robustness and salt rejections of >99. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Item Type: | Article |
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Additional Information: | cited By 20 |
Uncontrolled Keywords: | Alumina; Aluminum oxide; Carbon; Desalination; Pore size; Potable water; Rapid thermal processing; Silica; Silicates; Sols; Water filtration, Alumina support; Brackish water; Brackish water desalinations; Ethyl silicate; Hybrid membrane; Salt rejections; Tetraethyl orthosilicates; Water desalination, Membrane technology |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 10 Nov 2023 03:27 |
Last Modified: | 10 Nov 2023 03:27 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/12553 |