A5073424992- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Electrochemical Analysis and Applications
- Layered Double Hydroxides Synthesis and Applications
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Magnesium Oxide Properties and Applications
- Graphene research and applications
- Carbon Nanotubes in Composites
- Advanced Chemical Sensor Technologies
- Polymer-Based Agricultural Enhancements
- Clay minerals and soil interactions
- Mesoporous Materials and Catalysis
- Advanced Photocatalysis Techniques
- Polyoxometalates: Synthesis and Applications
- Graphene and Nanomaterials Applications
- Organic Light-Emitting Diodes Research
- ZnO doping and properties
- Nanomaterials for catalytic reactions
- Gas Sensing Nanomaterials and Sensors
- Catalytic Cross-Coupling Reactions
- Polymer Surface Interaction Studies
- Molecular Sensors and Ion Detection
- biodegradable polymer synthesis and properties
- Polymer Nanocomposites and Properties
Sultan Idris Education University
2015-2024
Indonesia University of Education
2015
Universiti Sains Malaysia
1998-2008
Honda (Japan)
1995
The efficacy of coconut tree sawdust (CTS), eggshell (ES) and sugarcane bagasse (SB) as alternative low-cost biosorbents for the removal Cu(II), Pb(II) Zn(II) ions from aqueous solutions was investigated. Batch adsorption studies were carried out to evaluate effects solution pH initial metal concentration on capacity. optimum biosorption condition found at 6.0, 0.1 g biomass dosage 90 min equilibrium time. data fitted Freundlich Langmuir isotherm models. capacity affinity CTS, ES SB...
The adsorption of copper ions by chitosan, Dowex A-1, and Zerolit 225 has been investigated. uptake was determined from changes in concentration as measured atomic absorption spectrometry. A preliminary investigation on the conducted batch-wise examining effects pH initial ion concentration. It found that chitosan an excellent loading capacity copper, compared with A-1 225. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 67:1067–1070,
The feasibility of durian tree sawdust (DTS), coconut coir (CC) and oil palm empty fruit bunch (EFB) as low-cost biosorbents for the removal Cu(II), Pb(II) Zn(II) ions from aqueous solutions was investigated. effects solution pH initial metal concentration on adsorption capacity were examined in batch experiments. affinity DTS, CC EFB evaluated. behaviour onto described using Freundlich Langmuir isotherm models. separation factor (RL) analysis suggests that three agricultural wastes studied...
This paper presents the application of zinc/aluminium-layered double hydroxide-quinclorac (Zn/Al-LDH-QC) as a modifier multiwalled carbon nanotubes (MWCNT) paste electrode for determination bisphenol A (BPA). The Zn/Al-LDH-QC/MWCNT morphology was examined by transmission electron microscope and scanning microscope. Electrochemical impedance spectroscopy utilized to investigate interfacial properties. electrochemical responses modified towards BPA were thoroughly evaluated using square-wave...
A new supramolecular electrochemical sensor for highly sensitive detection of dopamine (DA) was fabricated based on assemblies mixed two surfactants, tetra-butylammonium bromide (TBABr) and sodium dodecyl sulphate (SDS), the electrodeposition gold nanoparticles graphene oxide modified glassy carbon electrode (AuNPs/GO/GCE). Self-assembled surfactants (TBABr/SDS) were added into solution to increase sensitivity DA. All electrodes characterized by scanning electron microscopy (SEM), cyclic...
Two phenoxyherbicide nanocomposites, namely cloprop-layered double hydroxide and cloprop-zinc- layered have been synthesized by using co-precipitation direct reaction method. PXRD pattern showed an expansion of interlayer spacing with the value 21.0 Å 22.7 for cloprop-zinc-layered nanocomposite, respectively. It is evident from FTIR elemental analyses that both nanocomposites were successfully intercalated between interlayers metal hydroxide. Controlled release cloprop anion nanocomposite...
In this study, electrochemical exfoliation method was adopted in the production of graphene oxide (GO). The electrolyte used sodium dodecyl sulphate (SDS) aqueous solution at various concentrations from 0.001 to 1.0 M. effect SDS on morphology GO samples were characterized using field emission scanning electron microscopy (FESEM), energy dispersive X-ray, micro-Raman and UV-Vis spectroscopy. As evident by FESEM analysis, concentration does give obtained study. lowest is given which However,...
In this work, a novel electrochemical sensor was developed by electron-withdrawing substituent modification of 1-phenyl-3-methyl-4-(4-fluorobenzoyl)-5-pyrazolone on graphene-modified glassy carbon electrode (HPMpFP-graphene/GCE) for glucose detection. The results characterizations using scanning electron microscope, Fourier transform infrared spectroscopy, Raman and nuclear magnetic resonance spectroscopy showed the successful fabrication HPMpFP-graphene nanocomposite, which served as an...
Residues of oxytetracycline (OTC), a veterinary antibiotic and growth promoter, can be present in animal-derived foods; their consumption is harmful to human health presence must therefore detected regulated. However, the maximum residue limit low, consequently highly sensitive accurate detectors are required detect residues. In this study, novel electrochemical sensor for detection OTC was developed using screen-printed electrode modified with fluorine-doped activated carbon (F-AC/SPE)...
Recent trends in electrochemical sensors based on conducting polymer functionalized graphene for the detection of pollutants water are highlighted this review. Graphene has been subject a lot scientific research to be composited with polymers. Researchers interested and its variants because they have good qualities, like electrical mechanical properties very high surface area. With review, we intend arouse interest important topic nanocomposite that is making significant advances sensing,...
A new salicylate ion sensor based on zinc aluminium layered double hydroxides-4(2,4-dichlorophenoxy) butyrate (Zn/Al-DPBA) nanocomposite was developed. Three plasticisers with different polarity, namely 2-nitrophenyloctylether (2-NPOE), tris(2-ethylhexyl) phosphate (TEHP) and bis(2-ethylhexyl) adipate (BEHA) were used to study the performance characteristic of sensor. The membrane electrode having compositions 7:30:60:3 (Zn/Al-DPBA:PVC: 2-NPOE:NaTPB) exhibited excellent Nernstian slope 58.8...