A5029865907- Layered Double Hydroxides Synthesis and Applications
- Phosphorus and nutrient management
- Adsorption and biosorption for pollutant removal
- Natural product bioactivities and synthesis
- Plant biochemistry and biosynthesis
- Enzyme Catalysis and Immobilization
- Water Quality Monitoring and Analysis
- Synthesis and properties of polymers
- Magnesium Oxide Properties and Applications
- Chemical Synthesis and Characterization
- Mesoporous Materials and Catalysis
- Antioxidant Activity and Oxidative Stress
- Pigment Synthesis and Properties
- Polyoxometalates: Synthesis and Applications
- Dye analysis and toxicity
- Inorganic Chemistry and Materials
- Natural Antidiabetic Agents Studies
- Zeolite Catalysis and Synthesis
- Pharmacology and Nanomedicine Research
- Nanomaterials for catalytic reactions
- Nanoparticles: synthesis and applications
- Diverse Scientific Research Studies
- Electrochemical sensors and biosensors
- Synthesis and characterization of novel inorganic/organometallic compounds
- Carbon and Quantum Dots Applications
Universiti Teknologi MARA
2009-2024
University of Technology Malaysia
2013
Swiss National Science Foundation
2009
Universiti Putra Malaysia
2008
The aim of this work was to develop an eco-friendly adsorbent remove the lead ions from aqueous solutions. present study uses artificial neural network (ANN) and genetic algorithm (GA) as tools for simulation optimization removal solutions using intercalated tartrate-Mg–Al layered double hydroxides adsorbent. A multi-layer ANN model trained with Levenberg–Marquardt (LM) incorporated developing a predictive model. input variables were time, solution pH, dosage, ion concentration, while...
The potential feasibility of layered double hydroxides for removal sunset yellow dye FCF from aqueous solution was investigated.The effects various experimental parameters such as contact time, pH, concentrations and adsorbent dosage were extent increased with the in time amount used however percentage decreased pH concentrations.Adsorption data better fitted to Langmuir isotherm.The results this study indicated that hydroxide an attractive removing solution.
Layered double hydroxide intercalated with tartrate (tartrate-Mg-Al) was used as an adsorbent to remove lead ions from aqueous solutions. The effects of various optimization parameters such contact time, solution pH, ion concentrations, and dosage were investigated by the use Response Surface Methodology (RSM). (RSM) based on a four-level four-variable Central Composite Rotatable Design (CCRD) employed evaluate interactive parameters. time (6–10 h), pH (1–3), (0.06–0.1 g), concentrations...
The potential feasibility of layered double hydroxides (LDH) intercalated with tartrate (tartrate-Mg–Al) for the removal lead ions from aqueous solutions was investigated. effects various experimental parameters such as contact time, solution pH, and adsorbent dosage were also extent increased increase in time amount tartrate-Mg–Al used; however, percentage decreased pH. shape isotherms that obtained data well fitted to Langmuir isotherm. fundamentals use could be explained by formation...
Abstract BACKGROUND: The synthesis of betulinic acid ester using and oleyl alcohol catalyzed by Novozym 435 (immobilized Candida antarctica lipase) was carried out. Response surface methodology (RSM) based on a five‐level, three‐variable, central composite rotatable design (CCRD) employed to evaluate the interactive effects various parameters. parameters were reaction time (8–16 h), temperature (20–60 °C) enzyme amount (120–160 mg). RESULTS: Simultaneously increasing time, increased yields...
A drug-inorganic nanostructured material involving pharmaceutically active compound lawsone intercalated Zn-Al layered double hydroxides (Law-LDHs) with Zn/AI = 4 has been assembled by co-precipitation and ion exchange methods. Powder X-ray diffraction (XRD) Fourier transform infrared spectra (FTIR) analysis indicate a successful intercalation of between the layers hydroxides. It suggests that may have application as basis drug delivery system.
Adsorption of amido black by calcined and uncalcined hydrotalcite was investigated. The influence contact time, pH the dye solution adsorbent dose has been studied. In light so called "memory effect," removal black, an anionic from aqueous also results adsorption experiments indicate that percentage increased with in time but decreased solution. Calcined showed better capacity compared hydrotalcite. isotherms well fitted Langmuir equation. present study can be used as for Better performed is...
Response Surface Methodology (RSM) was used in this study with the aim to evaluate interactive effects and obtain optimum conditions for humic acid removal from aqueous solution using anionic clay hydrotalcite as an adsorbent. based on a five-level, four variable Central Composite Rotatable Design (CCRD) effect of various parameters. The parameters were: time (2-6 h); temperature (30-70°C); amount dosage (100-300 mg) initial concentration (50-100 mg L-1). Batch adsorption adopted experiments...
Simple and green methods of developing nanoparticles (NPs) have attracted the attention researchers. Literature on utilising leaf extract to prepare cerium oxide (CeO2 NPs) is scarce. The present study synthesised leaf-mediated-CeO2 NPs produce nanopowders controllable sizes for further applications. first report optimised parameters (pH 7, 5 g/150 mL concentration extract, 3 h reaction time) procuring CeO2 using Melastoma sp. as capping agent with excellent properties. absorbance suspension...
An anionic MgAlNO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> layered double hydroxides (MgAlNO -LDH) with Mg/Al molar ratio 4∶1, was investigated for its ability to adsorb an dye, Reactive Orange 16 (RO16), the objective of evaluating suitability as adsorbent. The experimental data were analyzed by Langmuir and Freundlich adsorption models. Equilibrium fitted well model concentration range 5–100 mg/L. equilibrium capacity -LDH...
Zirconium oxide nanoparticles (ZrO2 NPs) were synthesized with an effective capping agent using aqueous extract of Chlorentus erectus at the optimized conditions. The leaf contained phytochemical compounds that could regulate size and shape nanoparticles. average C. erectus-ZrO2 NPs crystallite was 10.42 nm, which determined based on Scherrer Debye’s equation. finding indicated effectiveness to diminish agglomeration particles. mediated ZrO2 in spherical clusters when observed through a...
Y. M. G. Yasin, O. J. R. Hodder and H. Powell, Chem. Commun. (London), 1966, 705 DOI: 10.1039/C19660000705
Layered double hydroxide with molar ratio of 4 (MAN 4) was synthesized by co-precipitation and followed hydrothermal method. The compound then later going through ion exchange K2HPO4 for 48 hours to produce MgAlHPO4 (MAHP 4). solid produced were characterized using X-ray diffraction (XRD) Fourier Transform Infrared spectroscopy (FTIR). Adsorption lead solution MAHP carried out batch experiment mixing the layered hydroxide. effects various parameters such as contact time, pH, adsorbent dosage...
Magnesium-aluminium hydrogenphosphate layered double hydroxide that synthesized by used of co-precipitation and followed hydrothermal (MAHP4) method was as an adsorbent to remove copper ions from aqueous solutions. The effects various optimization parameters such contact time, dosage lead ion concentrations were investigated Response surface methodology (RSM). (RSM) based on a four-level-three variables Central Composite Rotatable Design (CCRD) employed evaluate the interactive parameters....
Conventional optimization method was conducted for the removal of lead from aqueous solution by used intercalated malate layered double hydroxides. The effects various parameters such as contact time, amount adsorbent dosage and pH are studied. extent ions increased with in time malate-Mg-Al however, percentage decreased concentration pH. fundamentals can be explained formation complexes between Pb 2+ ions. results this study indicated that hydroxide could potential solution.
Adsorption of Reactive Black 5 (RB5) and Orange 16 (RO16) from their binary mixture using MgA-NO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> -layered double hydroxide (MgAlNO -LDH) was conducted in a batch system. First order derivative spectrophotometric method used for simultaneous analysis RB5 RO16 mixtures. The effect pH, contact time, initial concentration were investigated. results these analyses showed that adsorption reactive...