A5071222880- Conducting polymers and applications
- Electrospun Nanofibers in Biomedical Applications
- Supercapacitor Materials and Fabrication
- Analytical Chemistry and Sensors
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Adsorption and biosorption for pollutant removal
- biodegradable polymer synthesis and properties
- Polymer Nanocomposites and Properties
- Electrochemical sensors and biosensors
- Advanced Cellulose Research Studies
- Advanced Fiber Optic Sensors
- Hydrogels: synthesis, properties, applications
- Nanocomposite Films for Food Packaging
- Corrosion Behavior and Inhibition
- Innovative Teaching Methods
- Polymer composites and self-healing
- Analytical chemistry methods development
- Lignin and Wood Chemistry
- Membrane Separation Technologies
- Magnetic Properties and Synthesis of Ferrites
- Synthesis and properties of polymers
- Natural Fiber Reinforced Composites
- Multiferroics and related materials
- Advanced biosensing and bioanalysis techniques
Universiti Putra Malaysia
2015-2024
Universiti Teknologi MARA
2021
Federal University Dutsin-Ma
2020
Multimedia University
2020
Serdang Hospital
2016
University of Auckland
2010-2014
National University of Singapore
2012
The aim was to explore the utilization of tea leaf waste fibers (TLWF) as a source for production cellulose nanocrystals (CNC). TLWF first treated with alkaline, followed by bleaching before being hydrolyzed concentrated sulfuric acid. materials attained after each step chemical treatments were characterized and their compositions studied. structure analysis examined Fourier transform infrared (FTIR) spectroscopy X-ray diffraction (XRD). From FTIR analysis, two peaks at 1716 1207 cm-1-which...
This article describes chemically modified polyaniline and graphene (PANI/GP) composite nanofibers prepared by self-assembly process using oxidative polymerization of aniline monomer in the presence a solution containing poly(methyl vinyl ether-alt-maleic acid) (PMVEA). Characterization was carried out Fourier transform infrared (FTIR) Raman spectroscopy, transmission electron microscopy (TEM) scanning (SEM). SEM images revealed size PANI ranged from 90 to 360 nm diameter greatly influenced...
Conducting nanofibers composed of poly(vinyl alcohol) (PVA), graphene oxide (GO) and poly(3,4-ethylenedioxythiophene) (PEDOT) were fabricated <italic>via</italic> a combined method using electrospinning electropolymerization techniques.
Nano adsorbent possess notable adsorption capabilities but is difficult to recover in wastewater treatment processes. To overcome this limitation, the entrapment of nanocellulose (NCC) and chitosan (Cts) within poly(hydroxyalkanoate) (PHA) via electrospinning proposed. The Pickering emulsion stabilized with Tween 80 formed a homogeneous NCC-Cts-PHA mixture prior electrospinning. resulting electrospun biocomposites were characterized SEM, FT-IR, XrD TGA. high porosity, rendering exposure NCC...
This conceptual study analyses the visual cultural depiction of Selangor's identity, emphasising how aspects embody state's cultural, historical, and social essence. The examines critical enquiries: What are principal icons Selangor? In what manner do these symbols communicate historical narratives? How features amalgamate traditional contemporary facets culture? Prior research has emphasised importance identity in place branding representation. Past studies examine designers employ tools to...
We demonstrate an ammonia sensor composed of a tapered multimode fiber coated with polyaniline nanofibers that operates at room temperature (26°C). The optical properties the layer changes when it is exposed to ammonia, leading change in absorption evanescent field. was tested by exposing different concentrations and absorbance measured using spectrophotometer system. Measured response recovery times are about 2.27 minutes 9.73 minutes, respectively. sensitivity can be controlled adjusting...
We developed a highly sensitive side-polished plastic optical fiber coated with chemical synthesized graphene/polyaniline nanocomposite for ammonia gas sensing application. It was found that the sensor absorbance spectrum linearly increases increasing concentrations. The experimental results revealed exhibited higher performance than ones only polyaniline. proposed demonstrated sensitivity, response and recovery times of 132.8 AU/%, 112 s, 185 respectively, at room temperature. superior...
Electrically conductive nanofiber is well known as an excellent nanostructured material for its outstanding performances. In this work, poly(3,4-ethylenedioxythiophene) (PEDOT)-coated polyvinyl alcohol-graphene oxide (PVA-GO)-conducting nanofibers were fabricated via a combined method using electrospinning and electropolymerization techniques. During electrospinning, the concentration of PVA-GO solution applied voltage deliberately altered in order to determine optimized conditions. The...
Heavy metal pollution, such as lead, can cause contamination of water resources and harm human life. Many techniques have been explored utilized to overcome this problem, with adsorption technology being the most common strategies for treatment. In study, carbon nanofibers, polyacrylonitrile (PAN)/sago lignin (SL) nanofibers (PAN/SL CNF) PAN/SL activated ACNF), a diameter approximately 300 nm, were produced by electrospinning blends sago followed thermal acid treatments used adsorbents...
Superhydrophilic graphene oxide/electrospun cellulose nanofibre (GO/CNF) was synthesized, characterized and successfully used in a solid-phase membrane tip adsorption (SPMTA) as an adsorbent towards simultaneous analysis of polar organophosphorus pesticides (OPPs) several food water samples. Separation, determination quantification were achieved prior to ultra-performance liquid chromatography coupled with ultraviolet detector. The influence parameters such sample pH, time, dosage initial...
Water pollution issues, particularly those caused by heavy metal ions, have been significantly growing. This paper combined biopolymers such as sodium alginate (SA) and β-cyclodextrin (β-CD) to improve adsorption performance with the help of calcium ion cross-linked agent. Moreover, addition carbon nanotubes (CNTs) into hybrid hydrogel matrix was examined. The nickel(II) thoroughly compared between pristine alginate/β-cyclodextrin (SA-β-CD) immobilized (SA-β-CD/CNTs) hydrogel. Both hydrogels...