Zulhairun Abdul Karim

Zulhairun Abdul Karim
Universiti Teknologi Malaysia | UTM · Advanced Membrane Technology Research Centre (AMTEC)

B.Eng (Chemical Engineering), Ph.D (Gas Engineering)

About

52
Publications
15,352
Reads
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1,056
Citations
Citations since 2017
44 Research Items
996 Citations
2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
Additional affiliations
June 2015 - June 2017
Universiti Teknologi Malaysia
Position
  • Fellow

Publications

Publications (52)
Article
Full-text available
Recently, natural gas (mostly methane) is frequently used as fuel, while hydrogen is a promising renewable energy source. However, each gas produced contains impurity gases. As a result, membrane separation is required. The mixed matrix membrane (MMM) is a promising membrane. The huge surface area and well-defined pore structure of zeolite template...
Article
Randomized particle distribution in a mixed matrix membrane would reduce the effectiveness of particle immobilized in its matrix. This study aims to distribute the particle near the membrane surface with magnetic field assistance. Specifically, investigating the influence of varied magnetic patterns (rod, chain, and circular) on zinc ferrite distri...
Article
Full-text available
This study aims to enhance the H2/N2 separation performance of polysulfone (PSF) hollow fiber membranes by annealing. X-ray diffraction, SEM, and FESEM were utilized to evaluate morphological and structural changes in denser annealed PSF membranes. AFM topography images were used to investigate the annealed form and roughness of PSF membranes. Befo...
Conference Paper
Full-text available
Recovery of heavier hydrocarbon gas (i.e. C3H8) from permanent gas (i.e. H2) during gas streams process is a great importance economically. Separation of H2/C3H8 gas using polysulfone (PSF) polymeric membrane was studied with the effect of post-treatment process such as annealing to improve the gas separation performance. PSF membrane annealed usin...
Article
Random particle distribution in mixed matrix membrane has reduced its efficiency in removing targeted pollutants. The particle that locates far from the membrane surface interacts less with the adsorbate and harnesses less light for photocatalysis. This study aims to strategically distribute particles in a mixed matrix membrane near its surface wit...
Article
The immoderate amount of phenol found in the water reservoir, i.e., river and municipal drain, has served as one major contributor to the scarcity of potable water worldwide. Many conventional methods have been applied to tackle polluted phenol water but suffer from various drawbacks. Special attention has been given to the photocatalytic membrane...
Article
Particle migration within membranes with different iron oxide compositions was prepared by traditional casting under direct exposure to a magnetic rod. Membrane with 30 wt% of iron oxide (M30) has shown a high concentration of Fe element within its thin layer compared to other membranes with lower iron oxide content. The high Fe element in the M30...
Article
Magnetic induce casting with different magnet arrangements, i.e., chain (CH-3) and circular (CR-3) formation could distribute and migrate particles differently. Zinc ferrite accumulation near the thin membrane layer has promoted elongated finger-like structure for the CH-3 and CR-3 mixed matrix membranes. CR-3 membrane excels in phenol removal at d...
Chapter
Functional and structural nanomaterials are emerging materials that display interesting physical and chemical properties because of their size and surface area to volume ratio. Applications for these materials include uses in removing pollutants from the environment. Looking at the current state-of-the-art as well as future trends in the use of nan...
Article
Full-text available
One of the most critical issues encountered by polymeric membranes for the gas separation process is the trade-off effect between gas permeability and selectivity. The aim of this work is to develop a simple yet effective coating technique to modify the surface properties of commonly used polysulfone (PSF) hollow fiber membranes to address the trad...
Article
The limited clean water resource has urged the need to extract fresh water from non-conventional sources. Produced water (PW) is a potential source of fresh water, particularly for oil-producing countries experiencing water stress issue. The engagement of membrane-based desalination technology in the field of PW treatment brings about new possibili...
Article
Surface active agent (surfactant) is the main ingredient in laundry detergent and other household cleaning agent. TWEEN20 is one of the nonionic surfactant which is widely used in detergent. Laundry effluent is one of the major contributor of domestic wastewater as laundering processes involves water-washing. Surfactant enters the environment when...
Article
Full-text available
With the blooming of oil and gas industries, oily saline wastewater treatment becomes a viable option to resolve the oily water disposal issue and to provide a source of water for beneficial use. Reverse osmosis (RO) has been touted as a promising technology for oily saline wastewater treatment. However, one great challenge of RO membrane is foulin...
Article
In the last decade, several achievements have been reported to the modification of the membrane. Reviews and paper articles have been flooded the publishing house focusing on the development of membrane for various applications such as photocatalysis, anti-fouling, and desalination. Although many breakthroughs have been compiled and reported, much...
Article
Two-dimensional (2D) hexagonal boron nitride (h-BN) nanosheets being isostructural to graphene, manifests robust properties for water treatment. However, it exhibits lower dispersibility in polar solvents limiting its utilization for membrane application. A facile two-step processes of (1) exfoliation of h-BN with urea followed by grafting polyethy...
Article
Membrane technology for industrial gas separation was begun in the 1980s and has shown significant advantages over conventional techniques such as cryogenic distillation and solvent absorption in terms of energy consumption and operational cost. The main objective of this work is to develop a simple yet effective coating technique to modify the sur...
Article
Full-text available
The zeolite-templated carbon (ZTC) with a unique structure was utilized as a new porous filler for preparing mixed matrix membrane (MMM). The zeolite-Y used as template was synthesized via hydrothermal method. The ZTC was prepared by impregnation of sucrose into the pore of zeolite-Y, followed by carbonization and template removal. The obtained ZTC...
Article
2-dimethylaminoethyl methacrylate (DMAEMA) was grafted onto PP/PE non-woven fabrics (NWF) using pre-radiation graft polymerization technique and subsequent mutual radiation crosslinking with divinylbenzene (DVB). The ion-imprinted polymer (IIP) was synthesized by DVB crosslinking with DMAEMA and thorium complex through radiation. Non-imprinted poly...
Chapter
Membrane technology has been applied in the treatment of natural gas since the 1980s. To become competitive with the more established technologies, and for treating low-quality gas fields, considerable efforts have been made to develop nanocomposite membranes. In this chapter, various synthesis techniques and structures of nanocomposite membranes a...
Article
Full-text available
The hydrogen adsorption, kinetic and thermodynamic of adsorption onto the zeolite templated carbon (ZTC) were examined at the temperature range of 30-50 °C and ambient pressure. The ZTC was prepared from zeolite-Y template and sucrose carbon precursor by impregnation method and showed its specific surface area of 932 m2/g as well as 0.97 cm3/g for...
Article
Pre-treated banana fiber were successfully grafted with glycidyl methacrylate (GMA) by employing preirradiation grafting technique with the aid of electron beam accelerator. GMA-grafted fibers were subsequently functionalized with trimethylamine (TMA). TMA functionalized fibers were subjected to elemental analysis to quantify the presence of nitrog...
Article
Zeolite-templated carbon (ZTC) was used as a new nanoporous filler to prepare mixed-matrix membranes (MMMs) with polysulfone as a continuous phase. The ZTC was prepared using a synthesized zeolite-Y template and sucrose carbon source via the impregnation method. The MMMs were fabricated through a dry-jet wet spinning technique, and the ZTC loadings...
Article
Biofouling is a persistent and unmet challenge in reverse osmosis (RO) technology. The attachment of microorganisms on the membrane surface has severely deteriorated the performance of RO membranes hence significantly affected the overall productivity and energy consumption of the system. Different strategies have been established to mitigate the t...
Conference Paper
Full-text available
Graphene was successfully synthesized by activating rice husk ash (RHA) using potassium hydroxide (KOH) at 800 oC with 1:2 impregnation ratio. Raman spectroscopy analysis confirmed the presence of graphitic structure. The demonstrated methodology utilizes RHA as carbon source and used as sacrifice to prevent oxidation during synthesis process on th...
Article
In this study, the synthesis of Fe3O4@GO@g-C3N4 ternary nanocomposite for enhanced photocatalytic degradation of phenol has been investigated. The surface modification of Fe3O4 was performed through layer-by-layer electrostatic deposition meanwhile the heterojunction structure of ternary nanocomposite was obtained through sonicated assisted hydroth...
Article
Full-text available
Mixed matrix membrane polysulfone (PSF) - zeolite carbon composite (ZCC) was successfully fabricated in this study. The composition of ZCC as a filler in this membrane was 1%. Mixed matrix membrane PSF-ZCC 1 wt% was compared by neat polysulfone membrane. The prepared membranes were characterized using XRD to determine the membrane structure and FTI...
Article
Full-text available
Phosphorylated adsorbent is commonly used in the extraction of rare earth metals and radioactive waste because of its high affinity in acidic condition. In this study, adsorbent containing phosphoric acid groups was synthesized by one-step radiation-induced grafting of 2-hydroxyl methacrylate phosphoric acid monomer (2-HMPA) onto kenaf fibers. The...
Article
Full-text available
In this paper, the adsorption performance of packed bed column with amine functionalized radiation-induced grafted fibers (AFF) for the removal of acid blue 80 (AB 80) was investigated. Pretreated banana fibers were grafted with glycidyl methacrylate (GMA) with the assistance of electron beam irradiation and subsequently functionalized with imidazo...
Article
Full-text available
Ultrafiltration grade polysulfone-based mixed matrix membranes (MMMs) incorporated with two-dimensional boron nitride nanosheet (BNNS) was prepared via phase inversion method. The amount of BN incorporated was varied and the influence on membrane morphology, contact angle, surface charge, as well as water permeability and humic acid rejection were...
Article
Full-text available
Two-stage curing reactive bio-based polymers network namely, poly(octanediol-co-dodecanedioate-co-citrate-co-itaconate) (PODCI) were successfully synthesized using 1,8-octanediol, citric acid, itaconic acid and 1,12-dodecanedioic acid. In the first curing stage, a prepolymer of PODCI was thermally crosslinked. At a later time, a second curing was c...
Article
The removal of toxic dyes from the wastewater and industrial effluents is a major environmental challenge. Various techniques have been employed for the removal of dyes, including the application of nano-sized adsorbents, nanocomposite membranes and photodegradation. Membrane filtration is an alterntive but suffers from drawbacks such as fouling. H...
Article
Full-text available
Oily wastewater discharge from various industry processes and activities have caused dramatic impacts on the human and environment. Treatment of oily wastewater using membrane technology has gained worldwide attention due to its efficiency in removing the amount and concentration of oil and grease as well as other specific pollutants in order to be...
Article
Chemically modified fibrous bio-adsorbent extracted from banana trunk was synthesized for potential application in adsorption of heavy metal from wastewater. Glycidyl methacrylate (GMA) polymer graft was first introduced onto the fiber through electron beam irradiation technique. GMA-grafted fiber was subsequently functionalized with imidazole (IMI...
Article
In this study, six different types of polysulfone hollow fiber membranes were fabricated from the same polymeric dope solution by manipulating several important parameters during the spinning process, aiming to find the best membrane supports for the coating layer in the gas separation process. The experimental results showed that upon the polydime...
Chapter
In this chapter, we discuss the broad overview on the processes and techniques for fabricating novel carbon-based polymer nanocomposites mainly based on graphene and carbon nanotubes, which would be applied in wide-ranging applications. Typical nanocomposite fabrication has vast possibilities for modification of the surface chemistry of carbon nano...
Article
This paper presented the application of polymeric membranes for oxygen/nitrogen (O2/N2) gas separation. Polysulfone (PSF) hollow fiber membranes were fabricated by phase inversion process using N,N-dimethylacetamide (DMAc) and tetrahydrofuran (THF) as co-solvent and ethanol as additive. The effects of bore fluid flow rate and polydimethysiloxane (P...
Article
Full-text available
This study investigates the characteristics of laser annealed thin films of Al–Ga co-doped zinc oxide (ZnO:Al–Ga) nanoparticles on top of SiO2/glass. The samples are synthesized using simple sol–gel, spin coating and radio frequency magnetron sputtering methods. The studies on the structural, optical and electrical properties of the pre-annealed sa...
Article
In this study, the gas separation performance of polysulfone (PSF) hollow fiber mixed matrix membranes (MMMs) incorporated with nanotubes derived from titania were investigated. Titania nanotubes (TNTs) were synthesized via facile hydrothermal method of different reaction times: 10 h and 48 h. Transmission electron microscopy (TEM), X-ray diffracti...
Article
Measuring the growth parameters of Ge quantum dots (QDs) embedded in SiO2/Si hetero-structure is pre-requisite for developing the optoelectronic devices such as photovoltaics and sensors. Their optical properties can be tuned by tailoring the growth morphology and structures, where the growth parameters' optimizations still need to be explored. We...
Article
Full-text available
A simple, efficient and scalable approach was developed for the fabrication of highly fouling resistance nanocomposite hollow fiber membranes with the aim of effective removal of environmentally detrimental reactive dyes. The naturally occurring halloysite nanotubes were functionalized via facile self-polymerization of m-aminophenol in mild acidic...
Article
Full-text available
Polysulfone-based polyaniline-TiO2 containing hollow fiber membranes were prepared via a dry wet spinning method. Polyaniline (PANI) coated TiO2 nanotubes were prepared via chemical oxidative polymerisation and were incorporated into the hollow fiber membranes at different compositions. The hollow fibers were fabricated by varying the air gap dista...
Article
Asymmetric mixed matrix membranes (MMMs) incorporating Cloisite15A (C15A) clay particles were prepared using solvent evaporation and phase inversion with polyethersulfone (PES) as the membrane matrix. C15A loadings varied at 1 wt% and 5 wt%. Membrane morphological and thermal properties were evaluated by means of X-ray diffraction (XRD), scanning e...
Article
Full-text available
Studies on mixed matrix membrane (MMM) have been sprouting rapidly since the last few decades, but mostly fabricated in the form of dense, flat films. In this work, hollow fiber Polysulfone (PSF)-Cloisite®15A (C15A) MMM were produced using our in-house hollow fiber spinning machine. Various spinning parameters are at play in order to ensure the for...
Article
Full-text available
Mixed matrix membranes (MMMs) embodying different types of organoclays, namely Cloisite (R) 5, Cloisite (R) 15A and Cloisite (R) 30B as the disperse phase for gas separation membranes, were prepared. Polysulfone (PSF) has been used as host matrix to prepare asymmetric membranes attained by the dry-wet phase inversion casting process. FESEM analysis...
Article
Full-text available
Defect-free asymmetric Polysulfone (PSF)-Cloisite 15A® nanocomposite membrane was fabricated with the intention to investigate the gas permeation behavior of the resulting material combination. Various weights of Cloisite 15A® organoclay were added into PSF matrices by solution intercalation method assisted by sonication dispersion. The gas permeat...
Article
Full-text available
Asymmetric MMMs were fabricated containing various amount of organically modified clay particle (Cloisite (R) 15A) with the main intention to investigate the gas permeation behavior of the resultant material combination. The fabricated MMMs were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA), differential scanning calo...

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