A5081402190- Advanced Chemical Sensor Technologies
- Ferroelectric and Piezoelectric Materials
- Acoustic Wave Resonator Technologies
- Gas Sensing Nanomaterials and Sensors
- Microwave Dielectric Ceramics Synthesis
- Analytical Chemistry and Sensors
- Innovative Energy Harvesting Technologies
- Multiferroics and related materials
- Nuclear reactor physics and engineering
- Energy Harvesting in Wireless Networks
- Wireless Power Transfer Systems
- Nuclear Engineering Thermal-Hydraulics
- Advanced Sensor and Energy Harvesting Materials
- Adsorption and biosorption for pollutant removal
- Nuclear Materials and Properties
- Semiconductor materials and devices
- Cephalopods and Marine Biology
- Coagulation and Flocculation Studies
- Photorefractive and Nonlinear Optics
- Advanced Cellulose Research Studies
- Ultrasonics and Acoustic Wave Propagation
- Graphite, nuclear technology, radiation studies
- Phosphorus and nutrient management
- Nanocomposite Films for Food Packaging
- Concrete Corrosion and Durability
International Islamic University Malaysia
2011-2025
Technical University of Malaysia Malacca
2016-2023
This study investigates the potential of rattan fiber, a by-product furniture industry, as feedstock for nanocellulose production. Cellulose nanocrystals (CNC) were extracted using double oxidation process that combined bleaching with ammonium persulfate (APS) treatment. The effects APS reaction time, pre-treatment and without bleaching, on crystallinity morphology CNC evaluated. Additionally, feasibility applying this extraction method to agro-industrial kenaf fiber was assessed. Fourier...
KNN thin films with diverse yttrium concentration (mol % = 0, 0.1, 0.3, 0.5, 0.7 and 0.9) were fabricated using sol-gel spin coating technique. Doped revealed that Y3+ was successfully doped into the ABO3 perovskite lattice without changing phase formation of KNN. The thickness deposited layer produced increasing dopant determined to be 200 nm dense well-defined grains. Afterwards, vibrational bonding conductivity identified according charge compensation mechanism. At high > 0.5 mol %,...
The presence of advanced technologies had brought to the development acoustic wave sensors. Quartz crystal microbalance (QCM), an sensor has provided a good sensing performance which enables it be extensively used in numerous fields. is related material as layer for adsorption analyte gas occur. This work focuses on use polyisobutylene (PIB) and chitosan biopolymer films detect volatile organic compounds (VOCs). Acetone, isopropyl alcohol (IPA) toluene are selected VOCs this work. A QCM with...
(K, Na)NbO 3 (KNN) thin films were prepared by sol-gel technique. Spin coating deposition and rapid thermal annealing (RTP) process applied to produce the KNN films. The obtained demonstrated that highly crystallographic orientation was produced at five layer with increase (preferred orientation) peak (1 1 1). thickness of layers observed field emission scanning electron microscopy (FE-SEM) determined be ~200nm. However, inhomogeneous distribution particles detected in elements confirmed...
The adsorption isotherm model requires extensive study in promoting a high-performance sensor, especially where mechanisms adhere. In this work, Langmuir and Freundlich isotherms are analyzed for isopropyl alcohol (IPA) acetone gas detection using quartz crystal microbalance with chitosan as the sensing layer. presumed equilibrium rate constants monolayer formed on surface of adsorbent. Meanwhile, predicted multilayer phenomenon adsorbates adsorbents interacting one another. Finite element...
Conversion of mechanical vibration into electrical energy with simple structure highlights the potential piezoelectric harvester as a candidate to replace conventional batteries in wireless sensor network. Piezoelectric enables standalone 'wireless sensor' which is cheap deploy Therefore, this paper emphasizes on design and simulation harvester. The comprised cantilever beam electrode layers between material. A finite element method (FEM) was conducted using COMSOL Multiphysics 5.1....
Sodium Potassium Niobate, KNN with different deposition layers on Si substrate was successfully prepared by sol-gel spin coating and subsequently annealed at 650°C for 10 min. Several of were systematically studied characterizations. The thin films five showed a good result in terms its homogeneity uniformity thickness that measured to be around 280 nm. Further study the surface roughness obtained AFM value 1.698 nm recorded from scanned area 1 µm × films. It also reported NbO6 octahedral...
Porous organosilica is a promising material to be applied in water treatment due high adsorption capacity of contaminants. Sol-gel method was used fabricate mesoporous organosilioca from triblock copolymers, poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) as the template and tetraethylorthosilicate silicate source. The doped with Al powder 2 SO 3 order evaluate effect ions on their capacity. It demonstrated that proportional concentration, inversely porosity. Metallic...
QCM sensor has been vastly used in isopropyl alcohol (IPA) detection as researchers are aware of its detriments to the central nervous system humans. It is conceded that use sensing layer on a determines performance sensor. In this work, copper-based metal organic-framework, MOF-199 synthesized using facile method drop-casted onto electrode for IPA analyte gas detection. Morphology powder study observed under FESEM images exhibited octahedral shape 30 micron. FT-IR analysis done sample...