Development of novel Ag/bauxite nanocomposite as a heterogeneous catalyst for biodiesel production

Date

2016-07-01

Author

Bet-Moushoul, Elsie
Farhadi, Khalil
Mansourpanah, Yaghoub
Molaie, Rahim
Forough, Mehrdad
Nikbakht, Ali Mohammad

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

256
views

0
downloads

Ag/bauxite nanocomposites have been prepared using in situ reduction of aqueous AgNO3 solution in a bauxite matrix and investigated for the transesterification of sunflower oil with methanol in order to study their potential as heterogeneous catalysts. The prepared nanocopmosites were characterized by XRD, SEM, EDX, FT-IR, and TG- DTA. The Central Composite Design of the Response Surface Methodology was used to optimize the effect of reaction temperature, reaction time, catalyst loading and methanol to oil molar ratio on the yield of fatty acid methyl esters. The highest yield was obtained at 67 degrees C reaction temperature, 3 h reaction time, 0.3 wt.% catalyst loading and 9:1 methanol to oil molar ratio. Under the optimal conditions, the methyl ester content was 94% and the catalyst successfully reused for at least 7 cycles without significant deactivation. (C) 2016 Elsevier Ltd. All rights reserved.

Subject Keywords

Bauxite, Ag nanostructures, Nanocomposite, Transesterification, Biodiesel

URI

https://hdl.handle.net/11511/90431

Journal

RENEWABLE ENERGY

DOI

https://doi.org/10.1016/j.renene.2016.01.070

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Synthesis of CuO nanostructures on zeolite-Y and investigation of their CO2 adsorption properties Boruban, Cansu; Nalbant Esentürk, Emren (2017-10-01) Copper(II) oxide (CuO) nanoparticles (NPs) in two different morphologies, spiky and spherical, were synthesized on zeolite-Y by a modified impregnation method, and their CO2 adsorbing capabilities were investigated under standard conditions (1 atm and 298 K). The properties and CO2 adsorption performances of the hybrid systems were characterized by transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray, X-ray diffraction, X-ray photoelectron spectroscopy, atomic absorption s...
Development of Ru0/MO2 (M = Ti, Zr, Hf, Ce) catalysts for electrocatalytic hydrogen production from water splitting Demir, Elif; Önal, Ahmet Muhtar; Department of Chemistry (2017) In this study, Ru0/MO2 catalysts were prepared by reduction of ruthenium(III) chloride on different types of metal oxides, which were TiO2, ZrO2, CeO2 and HfO2, then catalysts were loaded on glassy carbon (GC) electrodes at same mass loading level, and used as electrocatalysts in 0.5 M H2SO4 solution for hydrogen evolution reaction (HER). Characterization of prepared catalysts were done by using transmission electron microscopy (TEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD) spectroscopy and X...
Development of curcumin incorporated composite films based on chitin and glucan complexes extracted from Agaricus bisporus for active packaging of chicken breast meat Kaya, Ecem; Kahyaoğlu, Leyla Nesrin; Şümnü, Servet Gülüm (2022-11-01) Composite films were prepared by combining different concentrations of curcumin with chitin and glucan complexes (CGCs) extracted from Agaricus bisporus via a solution casting method. The developed curcumin doped CGC (CGC/Cu) films were characterized in terms of surface, optical, structural, barrier, mechanical, antioxidant, and antimicrobial properties. The biodegradability of CGC/Cu films was determined in soil for 14 days. The incorporation of curcumin significantly affected the surface morphology and im...
The preparation and characterization of gold(0) nanoclusters stabilized by zeolite framework: Highly active, selective and reusable catalyst in aerobic oxidation of benzyl alcohol Zahmakiran, Mehmet; Özkar, Saim (2010-05-15) Zeolite framework stabilized gold(0) nanoclusters were prepared by the ion-exchange/impregnation of Au3+ ions with zeolite-Y followed by reduction of the Au3+ ions using sodium borohydride in aqueous solution, all at 50 degrees C. The zeolite framework stabilized gold(0) nanoclusters were isolated as red powder and characterized by HR-TEM, TEM, TEM-EDX, XRD, XPS, DR-UV-vis, SEM, ICP-OES spectroscopic methods and N-2-adsorption technique. This new material was found to be highly active, selective and reusabl...
Development of highly luminescent and cytocompatible near-IR-emitting aqueous Ag2S quantum dots Hocaoglu, Ibrahim; Cizmeciyan, M. Natali; ERDEM, Rengin; Özen, Can; KURT, Adnan; Sennaroglu, Alphan; Acar, Havva Yagci (2012-01-01) Colloidally stable and highly luminescent near-IR emitting Ag2S quantum dots (NIRQDs) were prepared by a very simple aqueous method using 2-mercaptopropionic acid (2MPA) as a coating. Emission of Ag2S-2MPA NIRQDs can be tuned between 780 and 950 nm. These NIRQDs have photoluminescence quantum yields (PLQY) around 7-39% and exhibit excellent cytocompatibility even at 600 mu g mL(-1) in NIH/3T3 cells. With such improved properties, Ag2S-2MPA NIRQDs have a great potential in practical bio-applications.

Citation Formats

E. Bet-Moushoul, K. Farhadi, Y. Mansourpanah, R. Molaie, M. Forough, and A. M. Nikbakht, “Development of novel Ag/bauxite nanocomposite as a heterogeneous catalyst for biodiesel production,” RENEWABLE ENERGY, pp. 12–21, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/90431.