Next Article in Journal
Acknowledgement to Reviewers of Membranes in 2019
Previous Article in Journal
Development and Application of Supported Ionic Liquid Membranes in Microbial Fuel Cell Technology: A Concise Overview
Previous Article in Special Issue
Materials and Applications for Low-Cost Ceramic Membranes
Open AccessArticle

Production of High Flux Poly(Ether Sulfone) Membrane Using Silica Additive Extracted from Natural Resource

1
Department of Chemical Engineering, Universitas Syiah Kuala, Jl. Syeh A. Rauf, No. 7. Darussalam, Banda Aceh 23111, Indonesia
2
Graduate School of Environmental Management, Universitas Syiah Kuala, Jl. Tgk Chik Pante Kulu No. 5, Darussalam, Banda Aceh 23111, Indonesia
3
Research Center for Environmental and Natural Resources, Universitas Syiah Kuala, Jl. Hamzah Fansuri, No. 4, Darussalam, Banda Aceh 23111, Indonesia
4
Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering, Kobe University, Rokkodai-Cho 1-1, Nadaku, Kobe 657-8501, Japan
5
Faculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
6
Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
*
Author to whom correspondence should be addressed.
Membranes 2020, 10(1), 17; https://doi.org/10.3390/membranes10010017
Received: 17 November 2019 / Revised: 13 January 2020 / Accepted: 16 January 2020 / Published: 19 January 2020
(This article belongs to the Special Issue Membranes for Water Filtration and Treatment )
This paper reports the application of silica derived from natural biomasses of rice husk and bagasse ashes as membrane modifying agents. The modification was conducted on poly(ether sulfone) (PES) membrane by blending the silica into the dope solution. The modification was aimed to improve the structure and hydraulic performance of the resulting PES membrane. The effects of silica addition to the membrane system were evaluated through the analysis of change in chemical structure using ATR-FTIR, surface morphological change using AFM, and surface hydrophilicity using water contact angle measurement. SEM and AFM images show the silica loading significantly affects the membranes morphologies. Silica loading also promotes hydrophilic property as shown by the decrease in water contact angles from 82° to 52–60° due to the presence of polar groups in some residual silica in the membrane matrix. Silica blending also leads to the formation of membranes with higher permeability of up to three folds but lower humic acid rejection (78–62%). The findings indicate the role of silica to enhance the membrane pore size. The ability of membrane to reject humic acid (of 0.8 nm minimum diameter) indicating that the resulting membranes were in between tight ultrafiltration and nanofiltration type. Nonetheless, applying too-high silica concentration decreased the humic acid rejection most likely due to over enlargement of the membrane pore size. View Full-Text
Keywords: polyethersulfone; rice husk; bagasse ashes; membrane surface modification polyethersulfone; rice husk; bagasse ashes; membrane surface modification
Show Figures

Graphical abstract

MDPI and ACS Style

Mulyati, S.; Muchtar, S.; Yusuf, M.; Arahman, N.; Sofyana, S.; Rosnelly, C.M.; Fathanah, U.; Takagi, R.; Matsuyama, H.; Shamsuddin, N.; Bilad, M.R. Production of High Flux Poly(Ether Sulfone) Membrane Using Silica Additive Extracted from Natural Resource. Membranes 2020, 10, 17.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop