Khadijah H. Alharbi

ORCID: 0000-0001-5508-2531
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Research Areas
  • Polymer Nanocomposite Synthesis and Irradiation
  • Catalysis and Hydrodesulfurization Studies
  • Electrochemical Analysis and Applications
  • Catalysis for Biomass Conversion
  • Nanomaterials for catalytic reactions
  • Advanced Photocatalysis Techniques
  • Catalytic Processes in Materials Science
  • Mesoporous Materials and Catalysis
  • Conducting polymers and applications
  • Catalysis and Oxidation Reactions
  • Zeolite Catalysis and Synthesis
  • Polyoxometalates: Synthesis and Applications
  • Adsorption and biosorption for pollutant removal
  • Synthesis and biological activity
  • Laser-Ablation Synthesis of Nanoparticles
  • Crystallography and molecular interactions
  • Synthesis and Biological Evaluation
  • Electrospun Nanofibers in Biomedical Applications
  • TiO2 Photocatalysis and Solar Cells
  • Analytical chemistry methods development
  • Nonlinear Optical Materials Research
  • Pigment Synthesis and Properties
  • Electrochemical sensors and biosensors
  • Molecular Sensors and Ion Detection
  • X-ray Diffraction in Crystallography

King Abdulaziz University
2019-2024

University of Liverpool
2014-2016

The polymeric material polyvinyl pyrrolidine/carboxymethyl cellulose (PVP/CMC) was mixed with different quantities of tungsten-trioxide nanoparticles (WO3 NPs). samples were created using the casting method and Pulsed Laser Ablation (PLA). manufactured analyzed by utilizing various methods. halo peak PVP/CMC located at 19.65°, confirming its semi-crystalline nature, as shown in XRD analysis. FT-IR spectra pure composite incorporated contents WO3 obtained a shift band locations change...

10.3390/polym15051223 article EN Polymers 2023-02-28

A novel thiazole-based Schiffbase chemosensor SB1 with N- and O- donor atoms was synthesized characterized by different techniques (UV–vis, 13C NMR, 1H FT-IR analysis). The used for the determination of Cu2+ ions in various samples. significant spectral changes absorption spectra at 220 416 nm color change from light yellow to yellowish-brown indicate high selectivity sensitivity towards as compared other cations (Na+, K+, Ag+, Zn2+, Ni2+, Pb2+, Mn2+, Mg2+, Co2+, Cd2+, Sn2+, Hg2+, Cr3+,...

10.1016/j.jscs.2022.101503 article EN cc-by-nc-nd Journal of Saudi Chemical Society 2022-06-07

The effectiveness of Congo red (CR) adsorption from aqueous solutions onto MgAl-layered double hydroxide (MgAl-LDH) nanosorbents was examined in this study. MgAl-LDH synthesized using the hydrothermal method, and physicochemical characterization performed via powdered X-ray diffraction, high-resolution transmission electron microscopy, Fourier transform infrared analysis, zeta potential measurements. For optimum CR nanosorbent, process employed batch experiments. Adsorption parameters, such...

10.1016/j.arabjc.2022.104171 article EN cc-by-nc-nd Arabian Journal of Chemistry 2022-08-10

In recent years, nanotechnology has become a considerable research interest in the area of preparation nanocatalysts based on naturally occurring polysaccharides. Chitosan (CS), as biodegradable and biocompatible polysaccharide, is successfully utilized an ideal template for immobilization metal oxide nanoparticles. this study, zinc nanoparticles have been doped within chitosan matrix at dissimilar weight percentages (5, 10, 15, 20, 25 wt.% CS/ZnO) fabricated by using simple solution casting...

10.3390/polym14030386 article EN Polymers 2022-01-19

Recently, Strontium oxide (SrO) nanoparticles (NPs) and hybrids outperformed older commercial catalysts in terms of catalytic performance. Herein, we present a microwave-assisted easy situ solution casting approach for the manufacture strontium doped within naturally occurring polymer, chitosan (CS), at varying weight percentages (2.5, 5, 10, 15, 20 wt.% SrO/chitosan). To construct new hybrid material as thin film, produced nanocomposite solutions were cast petri dishes. The aim research was...

10.3390/polym14142827 article EN Polymers 2022-07-12

Low-cost natural materials-mediated adsorbents for the removal of dye pollutants from water are gaining popularity over chemical due to their eco-friendliness, widespread availability, and ease manufacture. A CaO-derived eggshell was used alter surface zinc-manganese-ferrite (Zn0.6Mn0.4Fe2O4) nanoparticles by post-precipitation method. The CaO/Zn0.6Mn0.4Fe2O4 nanocomposite studied using FT-IR , XRD SEM, utilized Rhodamine B dye. adsorption efficiency 10 mg L-1 RhB reached 75% at pH 4.0, 60...

10.12982/cmjs.2025.006 article EN Chiang Mai Journal of Science 2025-01-29

The green mechanism for the synthesis of nanoparticles and their application to wastewater treatment is inordinate curiosity research community. Herein we outline a novel method silver via route using alginate-guar gum blend (GG-Alg@Ag) degrade methylene blue (MB) dye. synthesized material was characterized by FTIR, XRD, SEM-EDX, TEM, TGA-DTG, AFM, UV-vis techniques. A combination RSM CCD employed compute system optimized values various interacting parameters such as exposure time (120 min),...

10.1039/d0ra00163e article EN cc-by-nc RSC Advances 2020-01-01

Statistics show that more than 700 thousand tons of dye are produced annually across the globe. Around 10–20% this is used in industrial processes such as printing and dyeing, while about 50% discharged into environment without proper physicochemical treatment. Even trace amounts water can reduce oxygen solubility have carcinogenic, mutagenic, toxic effects on aquatic organisms. Therefore, before dye-containing wastewater environment, it must be properly treated. The present study...

10.3390/coatings10121200 article EN Coatings 2020-12-09

Deoxygenation and decomposition of ethers esters, including anisole, diisopropyl ether (DPE), ethyl propanoate (EP), was investigated using bifunctional metal–acid catalysis at a gas–solid interface in the presence absence hydrogen. The catalysts studied comprised Pt, Ru, Ni, Cu as metal components Cs2.5H0.5PW12O40 (CsPW), an acidic Cs salt Keggin-type heteropoly acid (HPA) H3PW12O40, component, with main focus on Pt–CsPW catalyst. It found that H2 is more efficient for ester deoxygenation...

10.1021/acscatal.6b00096 article EN ACS Catalysis 2016-02-12

The Zn(II) complex of salen-like scaffold [Zn(sal)](H2O) was synthesized and characterized by elemental analysis, IR, UV–Vis, 1H-NMR spectroscopic techniques. structure confirmed single crystal X-ray diffraction studies. In the complex, Zn (II) placed in inner N2O2 compartment salen square planar geometry crystallized monoclinic space group P21/n. DFT TDDFT calculations were performed to reproduce experimentally observed structural (IR UV–vis) findings. bonding framework explored depth....

10.3390/cryst10040259 article EN cc-by Crystals 2020-03-29

Medicinal plants provide a wide range of active compounds that can be exploited to create novel medicines with minimal side effects. The current study aimed identify the anticancer properties Juniperus procera (J. procera) leaves. Here, we demonstrate J. leaves’ methanolic extract suppresses cancer cells in colon (HCT116), liver (HepG2), breast (MCF-7), and erythroid (JK-1) cell lines. By applying GC/MS, were able determine components might contribute cytotoxicity. Molecular docking modules...

10.3390/molecules28052041 article EN cc-by Molecules 2023-02-22

The inimical effects associated with heavy metals are serious concerns, particularly respect to global health-related issues, because of their non-ecological characteristics and high toxicity. Current research in this area is focused on the synthesis poly(acrylamide) grafted Cell@Fe3O4 nanocomposites via oxidative free radical copolymerization acrylamide monomer its application for removal Pb(II). hybrid material was analyzed using different analytical techniques, including thermogravimetric...

10.3390/nano9121687 article EN cc-by Nanomaterials 2019-11-25

Using acid–base assays and simple slow evaporation method at ambient temperature, we were successful in producing a novel salt with the chemical formula (C5H14N2)[HgCl4]·H2O. According to single-crystal X-ray diffraction data, crystal packing was regulated by H-bonds Coulomb interactions (also called electrostatic interactions) between distinct entities, which formed 3D network. The 2D fingerprint plots Hirshfeld surface utilized examine effect of intermolecular interactions. FTIR...

10.3390/cryst12040486 article EN cc-by Crystals 2022-03-31

Abstract The density functional B3LYP was utilized for scrutinizing the effect of Ti-doping on sensing performance a ZnO nano-sheet (ZnONS) in detecting phosgene. Pure ZnONS had weak interaction with phosgene, and response (SR) approximately 9.4. There an increase energy adsorption (E ad ) phosgene from −5.5 to −22.8 kcal mol −1 after doping Ti atom onto surface ZnONS. Following Ti, there also dramatic SR 84.2. recovery time (RT) desorption that doped 16.4 s. This suggested Ti-doped might be...

10.1088/1402-4896/ac6382 article EN Physica Scripta 2022-04-02
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