A5004955968- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Magnetic Properties and Synthesis of Ferrites
- Nanomaterials for catalytic reactions
- Advanced Photocatalysis Techniques
- Catalysis and Hydrodesulfurization Studies
- Copper-based nanomaterials and applications
- TiO2 Photocatalysis and Solar Cells
- Pigment Synthesis and Properties
- Advancements in Battery Materials
- Phosphorus and nutrient management
- Nanoparticle-Based Drug Delivery
- Arsenic contamination and mitigation
- Clay minerals and soil interactions
- Iron and Steelmaking Processes
- Advanced oxidation water treatment
- Iron oxide chemistry and applications
- Chemical Synthesis and Characterization
- Thermal and Kinetic Analysis
- Microwave-Assisted Synthesis and Applications
- Environmental remediation with nanomaterials
- Adsorption and biosorption for pollutant removal
University of Algiers Benyoucef Benkhedda
2022-2024
University of Sciences and Technology Houari Boumediene
2012-2024
Laboratoire de Chimie
2024
Laboratoire de Génie des Procédés Catalytiques
2010-2023
Catalyse
2017-2022
University of Skikda
2014-2019
Institute of Catalysis and Petrochemistry
2017
Struvite crystallization is a widely employed technique for phosphorus recovery from wastewater. The accessibility and availability of cost-effective magnesium alternatives pose challenges this process. This paper comparative study struvite precipitation synthetic wastewater using seawater, brine natural as low-cost sources. impact initial pH Mg/P molar ratio on phosphate was assessed compared with Visual MINTEQ to determine its suitability simulating P removal efficiencies. For the three...
To investigate the influence of Ag and loading Ni species, Ni-Ag type catalysts were synthesized with varying Ni/Ag ratios (1, 1.5 2) using coprecipitation method. The extensively characterized various techniques such as TG-DSC-SM, XRD, ICP, BET, SEM-EDX TPR subsequently tested in CH4/CO2 reaction without any pretreatment. Regardless ratio employed, a phase mixture containing NiO was observed after calcination under air between 600 °C 1200 °C. SEM analysis confirmed presence close interface...
Abstract In this work, surface properties evaluated by catalytic conversion of isopropanol and ammonia Temperature Programmed Reduction (NH 3 ‐TPD) over ferrite spinel nanoparticles was investigated. Bulk NiFe 2 O 4 with specific area 114 m /g crystallites size 6 nm prepared hydrothermal synthesis using nitrates as precursors. X‐ray diffraction (XRD), Raman spectroscopy, B.E.T, Scanning Electron Microscopy (SEM) energy dispersive microanalysis (EDS), Transmission (TEM) Photoelectron...
CuM and AgM (M = Cr, Fe) catalysts were synthesized, characterized, evaluated in methane reforming with CO
Bimetallic layered double oxide (LDO) NiM (M = Cr, Fe) catalysts with nominal compositions of Ni/M 2 or 3 were tailored from hydroxides (LDH) using a coprecipitation method to investigate the effects trivalent metal (Cr and amount Ni species on structural, textural, reducibility, catalytic properties for CH4/CO2 reforming. The solids before after thermal treatment at 500 °C characterized TGA-TD-SM, HT-XRD, XRD, Raman, IR-ATR spectroscopies; N2 physical adsorption; XPS; H2-TPR. According XRD...
NiAlxFe2−xO4 (0 ≤x ≤ 2) was synthesized, characterized and evaluated in methane reforming with CO2 without any pretreatment. It shown that the nature of precursor has a significant effect on structural, textural reactivity properties. The cell parameters decrease increasing Al-content which can be explained by partial substitution Fe3+ ions (∼0.63 Å tetrahedral site ∼0.78 high spin octahedral site) Al3+ (∼0.53 Å) either or sites. If, one hand, catalytic activity aluminum compound exhibits...
Abstract The aim of this work is the photocatalytic degradation 5‐fluorouracil from water with titanium dioxide supported on Algerian diatomite. Different methods and amounts (30 50% weight) are used to synthesize photo‐catalysts which characterized (X‐ray powder diffraction (XRD), Scanning electron microscopy (SEM), specific surface area (BET) X‐ray fluorescence). efficiency enhanced by increasing TiO 2 amount in diatomite matrix. Under our experimental conditions, commercial showed higher...
The nickel molybdate unsupported and supported on alumina or silica were prepared by co-precipitation co-precipitation/impregnation methods calcined in air at 550°C for 15h. textural structural properties of the solids have been studied using Brunner-Emmett-Teller surface analyze (BET), X-ray diffraction (XRD), Laser Raman Spectroscopy (LRS), scanning electron microscopy coupled with energy dispersive spectrometry (SEM-EDX), temperature-programmed reduction (TPR) Atomic absorption...
Abstract Photocatalytic performance of titanium dioxide under visible light was optimized by preparing heterophase compounds (containing two or more phases) hydrolysis method using TiCl 4 as a precursor with different concentrations (0.5, 0.7, 1, and 2) to adjust condensation modes Ti 4+ . The structural textural properties the synthesized TiO 2 multiphase were fully characterized XRD, Raman scattering, FTIR, BET, MEB‐EDX, XPS, diffuse UV–vis, EIS spectroscopy. increase amount has...
This work deals with the search for new molybdate catalyst formulations, which are known to be active in light alkane oxidative dehydrogenation, a process could replace near future common steam cracking and pure dehydrogenation processes currently used production of alkenes. Co, Ni mixed Ni-Co molybdates various compositions prepared by modified coprecipitation procedure from metal nitrates ammonium heptamolybdate. Their structural textural properties were studied XRD, Raman, B.E.T XPS....
Abstract CeO 2 and La O 3 oxides supported NiO loading (5 20 wt%) were synthesized, characterized by ICP‐AES, XRD, IR‐ATR, SEM, B.E.T, H ‐TPR applied to CO oxidation with without pretreatment under atmosphere. It was shown that the support has a significant effect on bulk, surface reactivity properties. The reduction of nickel metallic species occurred at higher temperatures in ceria case. 20‐Ni/La sample showed best catalytic activity but this behavior mitigates when pretreated indicating...