Synthesis, characterization and application of nanomaterial

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dc.contributor.authorDOUMI Bouthaina
dc.date.accessioned2026-04-28T13:40:11Z
dc.date.available2026-04-28T13:40:11Z
dc.date.issued2026-02-05
dc.description.abstractThis thesis reports the successful synthesis of various nanomaterials using simple, low-cost methods for multifunctional applications. Silica nanoparticles and a zinc-doped silica nanocomposite were prepared and effectively used for methylene blue adsorption, with removal efficiencies exceeding 85%. The incorporation of zinc also enhanced the materials by providing strong antibacterial properties against both Gram-positive and Gram-negative bacteria, as well as fungi. Furthermore, zinc–iron layered double hydroxides and their derived materials were synthesized and showed excellent photocatalytic performance, achieving up to 95% degradation of crystal violet dye under visible-light irradiation. Overall, all prepared nanomaterials demonstrated notable antimicrobial activity against both Gram-positive and Gram-negative bacterial strains.
dc.formatPDF
dc.identifier.urihttps://dspace.univ-oran1.dz/handle/123456789/5211
dc.language.isoen
dc.publisherUniversité Oran1
dc.subjectsilica nanoparticles; layered double hydroxide; characterization; adsorption; photocatalysis; antimicrobial activity; regeneration; wastewater treatement; methylene blue; crystal violet
dc.titleSynthesis, characterization and application of nanomaterial
dc.typeThesis
grade.Co-rapporteurBENDEDDOUCHE Choukry Kamel, Professeur, Université Oran 1
grade.ExaminateurKAMBOUCHE Nadia, Professeur, Université Oran 1
grade.ExaminateurAMMABENDERAOUA Abdelaziz, Professeur, Université USTOME Abdelkader, Professeur, Université Dr Moulay Tahar Saida
grade.ExaminateurBENDERAOUA Abdelaziz, Professeur, Université USTO
grade.GradeDoctorat 3éme cycle
grade.InviteBELLAHOUEL Salima, Professeur (en retraite), Université de Ain -Temouchent
grade.OptionGénie pharmaceutique
grade.PrésidentMAZARI Miloud Mohamed, Professeur, Université Oran 1
grade.RapporteurADJDIR Mehdi, Professeur, Université Dr Moulay Tahar Saida
l'article.1.DateParution27/09/2025
l'article.1.RevueReaction Kinetics, Mechanisms and Catalysis
l'article.1.RéférenceDoumi, B., Draoua, Z., Bennabi, F. et al. Efficient removal of crystal violet from wastewater using a Zn–Fe layered double hydroxide: photocatalysis and antibacterial insights. Reac Kinet Mech Cat 139, 803–823 (2026). https://doi.org/10.1007/s11144-025-02982-1
l'article.1.TitreEfficient removal of crystal violet from wastewater using a Zn–Fe layered double hydroxide: photocatalysis and antibacterial insights
l'article.2.DateParution21/11/2025
l'article.2.RevueChemistrySelect
l'article.2.RéférenceB Doumi,F Bennabi, B Djemoui, N Karkachi, M Mazari,CK Bendeddouche,A Nebbati ec chergui, M Adjdir , Sustainable Synthesis of Zn-Doped Silica Nanocomposites fromWaste Silica Gel for Enhanced Methylene Blue Adsorption and Antimicrobial Activity, ChemistrySelect2025, 10,e03661, doi.org/10.1002/slct.202503661
l'article.2.TitreSustainable Synthesis of Zn-Doped Silica Nanocomposites from Waste Silica Gel for Enhanced Methylene Blue Adsorption and Antimicrobial Activity
la.MentionTrès Honorables
la.SpécialitéGénie des procédés
la.coteTH5647
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