Şefika Kaya

Şefika Kaya
Eskisehir Osmangazi University | ESOGU · Department of Chemical Engineering

PhD

About

21
Publications
1,644
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
159
Citations

Publications

Publications (21)
Article
In this study, carbon nanotube supported (CNT) monometallic (Pd), trimetallic (PdAgCo), and multimetallic ([email protected]) catalysts in different weight percentages (0.5–10%) are synthesized by the NaBH4 reduction method and characterized transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma-m...
Article
In this study, carbon nanotube supported Pd catalysts (Pd/CNT) are synthesized at different weight percentages by the sodium borohydride (NaBH4) reduction method to investigate catalytic performance of glucose electrooxidation reaction. 0.5% Pd/CNT, 3% Pd/CNT, and 7% Pd/CNT catalysts are characterized by using X-ray diffraction (XRD), electron micr...
Article
In this study, glucose electrooxidation activities of carbon nanotube (CNT)-supported Pt catalysts synthesized at various weight percentages and optimum electrode preparation conditions are investigated. For glucose electrooxidation on Pt/CNT, electrode preparation parameters such as amount of catalyst ink (Vc), ultrasonication duration of the cata...
Article
The compound 3-iodo-2-(aryl/alkyl)benzo[b]thiophene (4A-F) has been synthesized as an anode catalyst using the Sonogashira coupling reaction and the electrophilic cyclization reaction in moderate to excellent yields. The glucose electro-oxidation performance of these catalysts has been investigated by electrochemical methods, such as cyclic voltamm...
Article
In the present study, bimetallic RuPd/carbon nanotube (RuPd/CNT) electrocatalysts were synthesized at different molar ratios by sodium borohydride (NaBH4) reduction. These catalysts were characterized with advanced surface characterization techniques such as x-ray diffraction (XRD), scanning electron microscopy with energy dispersive x-ray (SEM-EDX...
Article
Full-text available
With the increase in industrialization, the unconscious use of surface and groundwater has led to the rapid pollution of water, which is the main source of life for all living things. As a result, the need for clean water has brought the global water crisis to the agenda. The textile industry is one of the largest producers of wastewater in the wor...
Article
Full-text available
Nowadays, leaving industrial wastewater into receiving environment causes serious environmental problems. In this study, experimental studies on color and chemical oxygen demand (COD) removal of paper industrial wastewater were carried out. In this context, heterogeneous Fenton and photocatalytic oxidation processes were applied and removal efficie...
Article
The treatment of industrial wastewater is one of the most important problems to be considered today. In recent years, advanced oxidation processes based on the production of hydroxyl radicals with high oxidation potential are preferred in the treatment of wastewaters. In this study, color and chemical oxygen demand (COD) removal efficiencies of sun...
Article
Full-text available
Recently, advanced oxidation processes (AOPs) based on the generation of a free hydroxyl radical (OH•) which degrades most organic pollutants quickly and non-selectively, are reported as a potential alternative for the treatment of industrial wastewater containing non-biodegradable organic pollutants. Fenton process, one of the AOP's, employs ferro...
Article
Full-text available
Cobalt is a toxic heavy metal found in various industrial wastewaters. In this study, the sorption mechanisms of Co(II) onto Amberlite 200C and Dowex 88 resins were investigated using batch reactors. The removal of Co(II) was examined by varying experimental conditions, such as the solution pH, sorbent dose, and temperature. The most effective pH r...
Article
Full-text available
In the present work, the removal of Co(II) ions from aqueous solutions using an ion-exchange resin (Lewatit MonoPlus SP 112) was investigated. For this purpose, batch adsorption studies were carried out with various parameters such as pH and contact time. The Langmuir and Freundlich isotherm models were applied to analyze the experimental data. The...
Article
Full-text available
Batch and dynamic flow biosorption studies were carried out using the waste biomass entrapped in silica-gel matrix for the removal of nickel(II) ions from synthetic solutions and real wastewater. Batch biosorption conditions were examined with respect to initial pH, S/L ratio, contact time, and initial nickel ion concentration. Zeta potential measu...

Network

Cited By

Projects

Project (1)
Project
benzothiophene catalyst systems may be worth further study as an anode catalyst in hdrazine electro-oxidation