scholarly journals A low cost, superhydrophobic and superoleophilic hybrid kaolin-based hollow fibre membrane (KHFM) for efficient adsorption–separation of oil removal from water

RSC Advances ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 2986-2995 ◽  
Author(s):  
Siti Khadijah Hubadillah ◽  
Preven Kumar ◽  
Mohd Hafiz Dzarfan Othman ◽  
A. F. Ismail ◽  
Mukhlis A. Rahman ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Sol Gel ◽  
Hollow Fibre ◽  
Oil Removal ◽  
Hollow Fibre Membrane ◽  
Fibre Membrane

This paper outlines a low cost, high performance superhydrophobic/superoleophilic KHFM through a simple sol–gel grafted method using TEOS and MTES for efficient adsorption–separation of oil removal from water.

THE FEASIBILITY OF KAOLIN AS MAIN MATERIAL FOR LOW COST POROUS CERAMIC HOLLOW FIBRE MEMBRANE PREPARED USING COMBINED PHASE INVERSION AND SINTERING TECHNIQUE

2017 ◽  
Vol 79 (1-2) ◽  
Author(s):  
Siti Khadijah Hubadillah ◽  
Mohd Hafiz Dzarfan Othman ◽  
A. F. Ismail ◽  
Mukhlis A. Rahman ◽  
Juhana Jaafar
Keyword(s):  
Phase Inversion ◽  
Low Cost ◽  
Pure Water ◽  
Porous Ceramic ◽  
Water Flux ◽  
Hollow Fibre ◽  
Hollow Fibre Membrane ◽  
Fibre Membrane ◽  
Pure Water Flux ◽  
And Performance

Ceramic hollow fibre membrane (CHFM) demonstrated superior characteristics and performance in any separation application. The only problem associated with this kind of technology is the high cost. In order to effectively fabricate and produce low cost porous CHFM, a series of CHFMs made of kaolin were fabricated via combined phase inversion and sintering technique. The CHFMs from kaolin named as kaolin hollow fibre membranes (KHFMs) were studied at different kaolin contents of 35 wt.%, 37.5 wt.% and 40 wt.% sintered at 1200ºC. The result indicated that by varying kaolin contents, different morphologies were obtained due to changes in the viscosity of ceramic suspension containing kaolin. The optimum kaolin content for KHFM was identified. It was found that KHFM prepared at 37.5 wt% has a mechanical strength and pure water flux of A and B respectively.  

scholarly journals Fabrication of low-cost ceramic hollow fiber membranes from aluminium dross waste for water purification

2019 ◽  
Vol 15 (4) ◽  
pp. 483-488
Author(s):  
Mohd Haiqal Abd Aziz ◽  
Mohd Hafiz Dzarfan Othman ◽  
Ahmad Fauzi Ismail ◽  
Mukhlis Abdul Rahman ◽  
Juhana Jaafar ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Low Cost ◽  
Hollow Fibre ◽  
Inversion Method ◽  
Alumina Membrane ◽  
Pure Alumina ◽  
Hollow Fibre Membrane ◽  
X Ray ◽  
Fibre Membrane ◽  
Aluminium Dross

In this study, alumina-spinel composite hollow fibre membranes were fabricated from abundantly available aluminium dross waste, which can be commonly obtained from aluminium-producing factory. The hollow fibre membranes were successfully fabricated by using a combine phase inversion method and sintering technique. The effects of sintering temperatures on morphology, mechanical strength, and permeability of the hollow fibre membranes were systematically investigated. X-ray fluorescence (XRF) was used to analyze the composition of the aluminium dross waste, while x-ray diffraction analysis (XRD) were further studied to characterize the major crystalline phase of the sintered hollow fibre membranes. An increase in sintering temperatures resulted in densification of hollow fibre membrane, consequently induced the flux reduction. The presence of spinel in microstructural of hollow fibre assisted in decreasing the sintering temperature. As comparison to pure alumina membrane counterparts, this alternative ceramic hollow fibre membrane exhibited a comparable mechanical strength of 78.3-155.1 MPa with lower sintering temperatures ranging from 1350 ˚C to 1400 ˚C at ceramic loading of 40%.

Fabrication of low cost, green silica based ceramic hollow fibre membrane prepared from waste rice husk for water filtration application

2018 ◽  
Vol 44 (9) ◽  
pp. 10498-10509 ◽  
Author(s):  
Siti Khadijah Hubadillah ◽  
Mohd Hafiz Dzarfan Othman ◽  
A.F. Ismail ◽  
Mukhlis A. Rahman ◽  
Juhana Jaafar ◽  
...  
Keyword(s):  
Rice Husk ◽  
Low Cost ◽  
Hollow Fibre ◽  
Water Filtration ◽  
Hollow Fibre Membrane ◽  
Fibre Membrane

INVESTIGATION ON THE EFFECT OF SINTERING TEMPERATURE ON KAOLIN HOLLOW FIBRE MEMBRANE FOR WATER APPLICATION

2017 ◽  
Vol 79 (1-2) ◽  
Author(s):  
Nur Hamizah Mohtor ◽  
Mohd Hafiz Dzarfan Othman ◽  
A. F. Ismail ◽  
Mukhlis A. Rahman ◽  
Juhana Jaafar ◽  
...  
Keyword(s):  
Ceramic Membrane ◽  
Sintering Temperature ◽  
Low Cost ◽  
Water Flux ◽  
Ceramic Materials ◽  
Skin Layer ◽  
Hollow Fibre ◽  
Polymeric Membrane ◽  
Hollow Fibre Membrane ◽  
Fibre Membrane

Ceramic membrane has the ability to surpass the utilisation of polymeric membrane in the application that requiring high temperature and pressure condition, as well as harsh chemical environment. Due to the high cost of ceramic membrane, various attempts have been made to use low cost ceramic materials as alternatives to well-known expensive metal oxides. In this work, local Malaysian kaolin has been chosen as ceramic material since it is inexpensive and easily available in Malaysia for the preparation of low cost hollow fibre ceramic membrane. The aim of this work is to study the effect of sintering temperature on the morphology, properties, and performance of kaolin hollow fibre membrane by sintering the prepared precursor at different target temperatures ranging from 1300°C to 1500 °C. The experimental results demonstrated that the kaolin membrane sintered at 1400 °C has influenced the formation of sufficient dense sponge-like structure of skin layer, resulting in good water flux of 74 L/h.m2.

scholarly journals A simple approach to prepare fluorescent molecularly imprinted nanoparticles

RSC Advances ◽  
2021 ◽  
Vol 11 (13) ◽  
pp. 7732-7737
Author(s):  
Fenying Wang ◽  
Dan Wang ◽  
Tingting Wang ◽  
Yu Jin ◽  
Baoping Ling ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Sol Gel ◽  
Silica Sol ◽  
Simple Approach ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Low Toxicity ◽  
Good Biocompatibility ◽  
Molecularly Imprinted Nanoparticles

Fluorescent molecularly imprinted polymer (FMIP) gains great attention in many fields due to their low cost, good biocompatibility and low toxicity. Here, a high-performance FMIP was prepared based on the autocatalytic silica sol–gel reaction.

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