A5052446505- Catalytic Processes in Materials Science
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Surfactants and Colloidal Systems
- Concrete and Cement Materials Research
- Mesoporous Materials and Catalysis
- Magnesium Oxide Properties and Applications
- ZnO doping and properties
- Quantum Dots Synthesis And Properties
- Advanced Nanomaterials in Catalysis
- Catalysis and Oxidation Reactions
- Copper-based nanomaterials and applications
- Nanomaterials for catalytic reactions
- Thermal and Kinetic Analysis
- Chalcogenide Semiconductor Thin Films
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanoparticle-Based Drug Delivery
- Building materials and conservation
- Spectroscopy and Quantum Chemical Studies
- Adsorption and biosorption for pollutant removal
- Aerogels and thermal insulation
- Thermodynamic properties of mixtures
- Iron oxide chemistry and applications
- Transition Metal Oxide Nanomaterials
Kuwait University
2016-2025
University of Bristol
1999
Although TiO2 is one of the most efficient photocatalysts, with highest stability and lowest cost, there are drawbacks that hinder its practical applications like wide band gap high recombination rate charge carriers. Consequently, many efforts were directed toward enhancing photocatalytic activity extending response to visible region. To head off these attempts, modification noble metal nanoparticles (NMNPs) received considerable attention due their role in accelerating transfer...
In this investigation, well defined mesoporous zirconia nanoparticles (ZrO2 NPs) with cubic, tetragonal or monoclinic pure phase were synthesized via thermal recovery (in air) from chitosan (CS)- polyvinyl alcohol (PVA)-ZrOx hybrid films, prepared using sol-gel processing. This facile preparative method was found to lead an almost quantitative of the ZrOx content film in form ZrO2 NPs. Impacts temperature (450, 800 and 1100 °C) polymer type (natural bio-waste CS synthetic PVA) used...
Pure ceria powders, CeO2, were synthesized in heptane-microemulsified aqueous solutions of CeCl3 or Ce(NO3)3 stabilized by AOT (sodium bis(2-ethylhexyl) sulfosuccinate), DDAB (di-n-didodecyldimethylammonium bromide), + Brij 35 surfactant mixtures. Micellar DTAB (n-dodecyltrimethylammonium bromide) and vesicular systems also used as media for generating CeO2. Characterization the powders X-ray powder diffractometry, laser-Raman spectroscopy, Fourier transform infrared spectroscopy revealed...
Abstract Herein, we report the synthesis of chromium oxide nanoparticles, α -Cr 2 O 3 NPs, followed by full characterization via XRD, SEM, XPS, and N sorptiometry. The synthesized nanoparticles were tested as catalysts toward oxidation CO. impact calcination temperature on catalytic activity was also investigated. CO conversion (%), light-off temperature, T 50 , data determined. results revealed that chromia obtained at low (400 °C) is more active than those high temperatures (600° or 800...
In this study, high surface area activated carbon (AC) was prepared from a local palm tree (Phoenix Dactylifera) using variety of metal carbonates activators and finally achieved an excellent SBET 2700 m2/g when Cs2CO3 used as activating agent at temperature 600 °C. Surface modification AC carried out various nitrogen transporting agents, resulting in N-doped ACs with content varying 4.0 to 11.4 %, depending on the functionalizing agents used. The bimodal (presence micro- well meso-porosity)...
Well-defined mixtures of didodecyldimethylammonium bromide (DDAB), with either n-dodecyltrimethylammonium (DTAB), sodium n-dodecyl sulfate (SDS), or pentaethylene glycol monododecyl ether (C12E5), have been used to stabilize water-in-heptane microemulsions. Using DTAB C12E5 DDAB causes a synergistic effect, and the water solubilization capacity microemulsion is increased. However, SDS there destabilization, indicating surfactant antagonism. Structure dynamics in these systems studied as...
In this study, we have synthesized metal oxide/metal sulphide based nanoheterostuctures mediated with graphene nanosheets. The nanoheterostructures were characterized via different techniques such as XRD, XPS, and TEM. electrochemical characteristics of the investigated nanoheterostucture (CdS/rGO/CeO2) through impedance spectroscopy (EIS), cyclic voltammetry (CV), galvanostatic charge-discharge. specific capacitance single rGO, binary CdS/CeO2 ternary CdS/rGO/CeO2 heterostructures measured....
Optimizing the physicochemical properties of chitosan-based activated carbon (Ch-ACs) can greatly enhance its performance toward heavy metal removal from contaminated water. Herein, Ch was converted into a high surface area (1556 m2/g) and porous (0.69 cm3/g) ACs with large content nitrogen (~16 wt%) using K2CO3 activator urea as nitrogen-enrichment agents. The prepared Ch-ACs were tested for Cr(VI) Pb(II) at different pH, initial ions concentration, time, dosage, temperature. For Cr(VI),...
Current production of virgin plastics stands at approximately 0.4 billion tonnes annually, with significant applications in packaging, construction, and the automotive industry. Despite utility plastics, their waste management remains a challenge. This study focuses on upcycling plastic (PW) through mechanical recycling, which adds value to discarded aligns sustainable practices. We have investigated thermal properties ternary quaternary blends most common polyolefin polymers, low-density...