tailieunhanh - Novel Ag-ZnO-La2O2CO3 photocatalysts derived from the Layered Double Hydroxide structure with excellent photocatalytic performance for the degradation of pharmaceutical compounds

The experimental results show that the highest photocatalytic activity was obtained from the Ag (5) doped photocatalysts calcined at 500 0C with a degradation efficiency of 99,4 after 40 min of irradiation only. This study could provide a new route for the fabrication of high performance photocatalysts and facilitate their application in the environmental remediation issues. | Journal of Science Advanced Materials and Devices 4 2019 34e46 Contents lists available at ScienceDirect Journal of Science Advanced Materials and Devices journal homepage locate jsamd Original Article Novel Ag-ZnO-La2O2CO3 photocatalysts derived from the Layered Double Hydroxide structure with excellent photocatalytic performance for the degradation of pharmaceutical compounds A. Elhalil a R. Elmoubarki a M. Farnane a A. Machrouhi a . Mahjoubi b M. Sadiq a S. Qourzal c M. Abdennouri a N. Barka a a Laboratoire des Sciences des Mat eriaux des Milieux et de la Mod elisation Universit e Sultan Moulay Slimane . Khouribga . 145 25000 Khouribga Morocco b Universit e Sultan Moulay Slimane Facult e des Sciences et Techniques B eni Mellal Laboratoire de Spectro-chimie Appliqu ee et Environnement LSCAE 523 B eni - Mellal Morocco c Equipe de Catalyse et Environnement D epartement de Chimie Facult e des Sciences Universit e Ibn Zohr Cit e Dakhla Agadir Morocco a r t i c l e i n f o a b s t r a c t Article history In this work we have prepared the Ag-ZnO-La2O2CO3 nanomaterials as promising photocatalysts for the Received 11 September 2018 photocatalytic degradation of pharmaceutical pollutants. Firstly a series of ZnAl1-xLax CO3 0 x Received in revised form layered double hydroxides LDHs were synthesized by the co-precipitation method at the component 20 December 2018 molar ratio of Zn Al þ La 3 where La Al 0 and . Photocatalysts were prepared by the Accepted 4 January 2019 Available online 6 January 2019 calcination of the LDH precursors at different temperatures of 300 400 500 600 800 and 1000 C. The effects of the La Al molar ratio and the calcination temperature on the photocatalytic activity of the cat- alysts were evaluated by the degradation of caffeine as a model pharmaceutical pollutant in aqueous Keywords Layered double hydroxides solutions under the UV irradiation. Thereafter in order to increase the photocatalytic

• Vật lý
• Advanced materials and devices
• Layered double hydroxides
• Photocatalytic degradation
• Advanced materials and devices
• Fourier transform infrared spectra
• Effect of Ag doping
• Flexible electronics
• Carbon materials
• Metal materials
• Possible usages
• Advanced materials
• Advanced devices
• Polymer electrolytes
• Spin coating
• Device fabrication
• Optical bandgap
• Cyclic voltammetry
• Polymer ceramic fiber nanocomposite coatings
• Titanium metal implant devices
• Bone tissue regeneration
• Nanofiberous coating
• Low power multilevel resistive switching
• Titanium oxide based RRAM devices
• Interface engineering
• Gibb's free energy
• Review of 4D printing materials
• Reinforced composites
• Smart materials
• Complex structures
• 4D printing
• 3D printing
• Dye sensitized solar cells
• Counter electrode
• Explored Pt area
• Viral recognition
• Human pathogenic viruses
• Dengue virus
• Ebola virus
• Hepatits virus
• Hydroxyl radical
• Dye degradation
• Dynamic light scattering
• Inductively coupled plasma mass spectrometry
• Reduced graphene oxide
• Electrode materials
• High performance supercapacitors
• Y MnS nanoparticles
• Mechanical processing techniques
• Two dimensional layered materials
• Atomice layer scale
• Mechanical characterization
• Bio based materials
• Functional leather
• Cross domain functions
• Includes electromagnetic
• Fracture toughness
• Mechanical properties
• Fracture toughness enhancement
• Metal organic frameworks
• Nano Zn BDC NH2
• Fast adsorption
• Nano materials
• Optoelectronics
• optoelectronic devices
• Light Emissive
• Device Structures
• Symmetric Gain
• Optoelectronic Mixers
• Precursor concentration
• P type semiconductor
• Bismuth materials
• Bismuth oxyiodide
• Solar cell
• Energy storage materials
• Mixed transition metal ferrites
• Density functional theory
• Carbon paste electrode
• Differential pulse voltammetry
• Electrochemical impedance spectroscopy
• Iron oxide nanoparticles
• Electrochemical investigation
• Metal matrix composites
• Mechanical alloying
• 316L stainless steel
• Corrosion resistance
• Antibacterial activity
• ALP activity
• Molybdenum disulfide
• KOH electrolyte
• Electrochemical performance
• Neural interface
• Mushroom electrodes
• Long term integration
• Numerical analysis
• Microfluidic platforms
• Cell biology research
• Cell analysis
• Surface states
• Graphene oxide
• Electrophoretic deposition
• Titanium dioxide
• Glucose sensor
• Modified pencil graphite electrode
• Manganese oxides mediator
• Flow injection analysis