Kurum Yazarı "Erdem, Murat" WoS İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Activated Carbons From Grape Seeds By Chemical Activation With Potassium Carbonate And Potassium Hydroxide
Okman, İrem; Karagöz, Selhan; Tay, Turgay; Erdem, Murat (Elsevier, 2014)Activated carbons were produced from grape seed using either potassium carbonate (K2CO3) or potassium hydroxide (KOH). The carbonization experiments were accomplished at 600 and 800 degrees C. The effects of the experimental ... -
Activated carbons from waste biomass by sulfuric acid activation and their use on methylene blue adsorption
Karagöz, Selhan; Tay, Turgay; Uçar, Suat; Erdem, Murat (Elsevier Sci LTD, 2008)Preparation of the activated carbons from sunflower oil cake by sulphuric acid activation with different impregnation ratios was carried out. Laboratory prepared activated carbons were used as adsorbents for the removal ... -
Adsorption of Methylene Blue From Aqueous Solution on Activated Carbon Produced From Soybean Oil Cake By Koh Activation
Tay, Turgay; Erdem, Murat; Ceylan, Burak; Karagöz, Selhan (North Carolina State University Dept Wood & Paper Sci, 2012)This study presents the adsorption behavior of the methylene blue (MB) dye onto the activated carbon produced from soybean oil cake by chemical activation with KOH at 800 degrees C. The adsorption isotherms, kinetic models, ... -
Adsorption of Reactive Black 5 onto quaternized 2-dimethylaminoethyl methacrylate based polymer/clay nanocomposites
Erdem, Bilge; Erdem, Murat; Özcan, Asiye Safa (Springer, 2016)[2-(Methacryloyloxy)ethyl]dimethylhexadecylammonium bromide (DMAC16) was synthesized by means of quaternization of 2-dimethylaminoethyl methacrylate with 1-bromohexadecane. Poly(DMAC16) and poly(DMAC16)-bentonite nanocomposites ... -
Antimicrobial activity of extracts of the lichen Parmelia Sulcata and its salazinic acid constituent
Candan, Mehmet; Yılmaz, Meral; Tay, Turgay; Erdem, Murat; Türk, Ayşen Özdemir (Walter De Gruyter GMBH, 2007)The antimicrobial activity of the acetone, chloroform, diethyl ether, methanol, and petroleum ether extracts of the lichen Parmelia sulcata and its salazinic acid constituent have been screened against twenty eight food-borne ... -
Biomimicking, metal-chelating and surface-imprinted polymers for the degradation of pesticides
Erdem, Murat; Say, Rıdvan; Ersöz, Arzu; Denizli, Adil; Türk, Hayrettin (Elsevier Science BV, 2010)Molecularly imprinted polymer beads (PlBs) and non-imprinted (control) polymer beads (NIBs) have been prepared from methacryloylhistidine-Co2+, -Ni2+, and -Zn2+ monomers and applied as catalyst in the hydrolysis of paraoxon ... -
Biosorption of Cadmium Ions from Aqueous Solution Onto Non-living Lichen Ramalina fraxinea Biomass
Tay, Turgay; Candan, Mehmet; Erdem, Murat; Çimen, Yasemin; Türk, Hayrettin (Wiley-V C H Verlag GMBH, 2009)Living lichens are known to accumulate metals across their surface. in this study, the biosorption of cadmium ions (Cd(2+)) by the lichen Ramalina fraxinea was investigated in aqueous solution in a batch system with respect ... -
Effect of reactive organobentonite additives to the some performance properties of rigid polyurethane foam
Erdem, Murat; Ortac, Kübra; Erdem, Bilge; Türk, Hayrettin (Gazi University, Fac Engineering Architecture, 2017)In this study, bentonite was modified with the compounds which have amine and hydroxyl functionality and obtained organobentonites were used as additive for the synthesis of rigid polyurethane foam nanocomposites (SPKN). ... -
Emulsifier-free cationic latexes based on vinylbenzyl chloride and 2-(dimethylamino)ethyl methacrylate with adjusted hydrophilic-hydrophobic properties
Türk, Hayrettin; Karabacak, R. Bengü; Erdem, Murat (Wiley-Blackwell, 2015)Functional emulsifier-free cationic latexes based on styrenic monomer vinylbenzyl chloride (VBC) and acrylic monomer 2-(dimethylamino)ethyl methacrylate (DMA) were successfully prepared with dual quaternary ammonium ions ... -
Enhanced catalytic activity of o-iodosobenzoate in poly[(styrylmethyl)hexadecyldimethylammonium chloride] latexes for the hydrolysis of p-nitrophenyl diphenyl phosphate
Karabacak, R. Bengü; Erdem, Murat; Türk, Hayrettin (Elsevier Science BV, 2011)Six 5.0 mol% crosslinked poly[(styrylmethyl)hexadecyldimethylammonium chloride] latexes containing 8-67% quaternization were synthesized via two-stage process and used as supports for o-iodosobenzoate (IBA) catalyst in the ... -
Facile two-step preparation of polystyrene/anatase TiO2 core/shell colloidal particles and their potential use as an oxidation photocatalyst
Karabacak, R. Bengü; Erdem, Murat; Yurdakal, Sedat; Çimen, Yasemin; Türk, Hayrettin (Elsevier Science Sa, 2014)Titania and materials containing titania have received considerable attention due to their technological importance in many areas. In this study, anatase crystalline titania (TiO2) coated polystyrene (PS) colloidal particles ... -
Imprinted polymer/organo-smectite nanocomposites for paraoxon hydrolysis
Erdem, Murat; Say, Rıdvan; Ersöz, Arzu; Denizli, Adil; Türk, Hayrettin (Elsevier Science BV, 2010)We have used the imprinting technique to create a polymer/organo-smectite nanocomposite catalyst. The aim was preparing a synthetic enzyme which shows high selectivity for paraoxon hydrolysis. Paraoxon imprinted ... -
Novel N-vinylimidazole based copolymeric hydrogels: Synthesis, characterization and swelling properties
Erdem, Murat (Gazi University, Fac Engineering Architecture, 2019)In this study, novel N-vinylimidazole based copolymeric hydrogels were synthesized by free radical solution polymerization. In the presence of N, N'-methylenebisacrylamide and 2,2'-azo-bis-isobutyronitrile as crosslinking ... -
Preparation and characterization of activated carbon produced from pomegranate seeds by ZnCl2 activation
Uçar, Suat; Erdem, Murat; Tay, Turgay; Karagöz, Selhan (Elsevier Science BV, 2009)In this study, pomegranate seeds, a by-product of fruit juice industry, were used as precursor for the preparation of activated carbon by chemical activation with ZnCl2. The influence of process variables such as the ... -
Preparation and Characterization of Activated Carbons from Waste Melamine Coated Chipboard by NaOH Activation
Zengin, Ayşe; Akalın, Mehmet Kuddusi; Tekin, Kubilay; Erdem, Murat; Tay, Turgay; Karagöz, Selhan (Foundation Environmental Protection & Research-Fepr, 2012)Activated carbons were prepared from the pyrolysis of waste melamine coated chipboard at 600 and 800 degrees C by chemical activation with NaOH. The effects of the carbonization temperature and concentration of chemical ... -
Preparation of cationic latexes with different length alkyl groups on their quaternary as supports for IBA catalyst ammonium ions and their use in the hydrolysis of PNPDPP
Erdem, Murat; Türk, Hayrettin (Elsevier Science BV, 2008)In this study, four cationic latexes containing n-hexadecyl, n-octyl, or a methyl group as one of the alkyls on their quaternary ammonium ions were synthesized and used as supports for o-iodosobenzoate (IBA) catalyst in ... -
Removal of lead (II) and nickel (II) ions from aqueous solution using activated carbon prepared from rapeseed oil cake by Na2CO3 activation
Uçar, Suat; Erdem, Murat; Tay, Turgay; Karagöz, Selhan (Springer, 2015)In this study, rapeseed oil cake as a precursor was used to prepare activated carbons by chemical activation with sodium carbonate (Na2CO3) at 600 and 800 A degrees C. The activated carbon with the highest surface area of ... -
Removal of Lead (II) Ions from Aqueous Solutions onto Activated Carbon Derived from Waste Biomass
Erdem, Murat; Uçar, Suat; Karagöz, Selhan; Tay, Turgay (Hindawi Publishing Corporation, 2013)The removal of lead (II) ions from aqueous solutions was carried out using an activated carbon prepared from a waste biomass. The effects of various parameters such as pH, contact time, initial concentration of lead (II) ... -
Removal of Orange II from Aqueous Solutions Using N-Vinyl Imidazole-based Hydrogels as Adsorbents
Erdem, Murat; Dikisler, Özlem; Erdem, Bilge (Taylor & Francis Inc, 2016)Poly(N-vinyl imidazole) hydrogel (p-VIm) and its partially quaternized analogue (p-VIm-Ar) were prepared and used for the removal of Orange II (OII). A fourier transform infrared spectrophotometer, scanning electron ... -
Structural stabilities of N-permethylated tetracations of meso-tetrakis(4-pyridyl)porphyrin, meso-tetrakis[4-(dimethylamino)phenyl]porphyrin, and their manganese(III) complexes toward hydrogen peroxide, tert-butylhydroperoxide, and sodium hypochlorite
Türk, Hayrettin; Erdem, Murat (Soc Porphyrins & Phthalocyanines, 2004)The degradation rate constants of the tetracations 5,10,15,20-tetrakis(N-methylpyridinium-4-yl)porphyrin and 5,10,15,20-tetrakis(N,N,N-trimethylanilinium-4-yl)porphyrin as well as their manganese(III) complexes toward the ...