Biodiesel production from waste cooking oil using a novel heterogeneous catalyst based on graphene oxide doped metal oxide nanoparticles

2020 ◽  
Vol 162 ◽  
pp. 2182-2189 ◽  
Author(s):  
Binta Hadi Jume ◽  
Mohammad Ali Gabris ◽  
Hamid Rashidi Nodeh ◽  
Shahabaldin Rezania ◽  
Jinwoo Cho
2015 ◽  
Vol 17 (4) ◽  
pp. 95-103 ◽  
Author(s):  
Magdalena Onyszko ◽  
Karolina Urbas ◽  
Malgorzata Aleksandrzak ◽  
Ewa Mijowska

Abstract Graphene – novel 2D material, which possesses variety of fascinating properties, can be considered as a convenient support material for the nanoparticles. In this work various methods of synthesis of reduced graphene oxide with metal or metal oxide nanoparticles will be presented. The hydrothermal approach for deposition of platinum, palladium and zirconium dioxide nanoparticles in ethylene glycol/water solution was applied. Here, platinum/reduced graphene oxide (Pt/RGO), palladium/reduced graphene oxide (Pd/RGO) and zirconium dioxide/reduced graphene oxide (ZrO2/RGO) nanocomposites were prepared. Additionally, manganese dioxide/reduced graphene oxide nanocomposite (MnO2/RGO) was synthesized in an oleic-water interface. The obtained nanocomposites were investigated by transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), Raman spectroscopy and thermogravimetric analysis (TGA). The results shows that GO can be successfully used as a template for direct synthesis of metal or metal oxide nanoparticles on its surface with a homogenous distribution.


Energy ◽  
2018 ◽  
Vol 158 ◽  
pp. 881-889 ◽  
Author(s):  
Manash Jyoti Borah ◽  
Anuchaya Devi ◽  
Raktim Abha Saikia ◽  
Dhanapati Deka

Author(s):  
Mansoor Anbia ◽  
Sotoudeh Sedaghat ◽  
Samira Saleh ◽  
Sholeh Masoomi

The synthesized nanomaterials by two different methods were used as a catalyst in the transesterification of waste cooking oil to produce biodiesel. For both environmental and economic reasons, it is beneficial to produce biodiesel from waste cooking oils. It is desirable to help solve waste oil disposal by utilizing its oils as an inexpensive starting material in biodiesel synthesis. The structure, morphology, and surface properties of resulting nanocatalysts were characterized by X-ray Fluorescence Spectroscopy (XRF), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Energy Dispersive X-ray Spectroscopy (EDX) and N2 adsorption-desorption isotherms. The synthesized nanocatalysts' efficiency in the production of biodiesel was studied by Gas Chromatography (GC) as well as leaching amounts of surface active components of each catalyst investigated by the EDX technique. The reactions were performed at 65°C using a 9:1 methanol to oil ratio for 3 h. The results indicate that the impregnated mixed metal oxide catalyst ( Ca-MgAl) shows a higher surface area and better mechanical strength than the totally co-precipitated mixed metal oxide catalyst (CaMgAl(O)). Although both of the fully co-precipitated and impregnated catalysts represented about 90% of fatty acid methyl esters (FAME) yield the leaching of active calcium component was significantly reduced from 45.8% in precipitated CaMgAl(O) to 8% for the impregnated Ca-MgAl catalyst. This improved structure represents the advantage of the impregnation technique to co-precipitation procedure for fabrication of robust nanostructures.


2019 ◽  
Vol 279 ◽  
pp. 224-231 ◽  
Author(s):  
Abdelrahman M. Rabie ◽  
Mohamed Shaban ◽  
Mostafa R. Abukhadra ◽  
Rania Hosny ◽  
Sayed A. Ahmed ◽  
...  

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