PROF.DR. ZEKÝ AKTAÞ    
Name : ZEKÝ
Surname : AKTAÞ
E-Mail : zaktas@eng.ankara.edu.tr, zekiaktas2003@yahoo.co.uk
Phone Number : 0533-2645779
Title : PROF.DR.
Unit : FACULTY OF ENGINEERING
Department : Department of Chemical Engineering
Personal Information

University Study

 PhD: Chemical Engineering Department, University of Manchester Institution Science and Technology, UMIST, Manchester, UK (Supervisor: Prof. E. T. WOODBURN)

Title of Thesis: "The adsorption behaviour of non-ionic reagents on two low rank British coals and their influence on the froth structure and flotation performance".

MSc: Chemical Engineering Department, University of Ankara, (Supervisor: Prof. Dr. Aral OLCAY

Title of Thesis: "Reduction of a Turkish lignite and supercritical  gas extraction of reduced lignite".

Research/Teaching Experience

  • March 1986-January 1989: Worked as a research and teaching assistantship position in the Chemical Engineering Department of Ankara University.                                    
  • January 1989-January 1994: PhD study in the Chemical Engineering Department (UMIST), Manchester, UK
  • January 1994-Dec.1994: Dr Research and teaching assistantship in the Chemical Engineering Department of Ankara University
  • December 1994-Nov.1998: Worked as an Assistant Professor in the Chemical   Engineering Department of Ankara University
  • November 1998-April 2004: Working as an Associate Professor in the Chemical Engineering Department of Ankara University
  • April 2004-present: Working as a full Professor in the Chemical Engineering Department of Ankara University

Scholarship and Grants

  • December 1988 – February 1994, PhD Funded by Higher Education Council (YOK), UMIST, Manchester, United Kingdom
  • 1996 (July) - 1996 (September), UMIST, Manchester, UK, “European Science Exchange Programme, ESEP” TUBÝTAK, Supported by the Royal Society (UK)
  • 2003 (15-July) - 2003 (15-September), UMIST, Manchester, UK, Partly supported by Faculty of Engineering, Ankara University.
  • 2004 (15-July) - 2004 (16-September), UMIST, Manchester, UK, Supported by TUBITAK (NATO-B2).
  • 2012 (September)-2013 (September) (sabbatical), The University of Manchester, UK, Partly supported by YÖK.

 

Lecturing                      

  •    Chemical Thermodynamics
  •    Engineering Thermodynamics
  •    Instrumental Analysis
  •    Engineering Labs.
  •    Solid/Liquid Systems
  •    Particle Technology and Froth Flotation
  •    Adsorption on Porous Materials
  •    Innovation and Innovation Management

Research Interests

  •    Porous Materials and Activated Carbon
  •    Froth Flotation and Heavy Media Separation
  •    Oil Agglomeration
  •    Gas and Liquid Adsorption
  •    Image Analysis
  •    Supercritical Gas Extraction
  •    Extraction
  •    Leaching
  •    Computer Programming and Usage of Various Soft wares

Journal Affiliations (Referee and reviewer)

  •        Advances in Colloid and Interface Science
  •         American Institute of Chemical Engineers (AIChE) Journal
  •        Applied Surface Science
  •        Bioresource Technology
  •        Chemical Engineering Communications
  •        Chemical Engineering Journal
  •        Chemical Engineering and Processing (CEP): Process Intensification
  •        Fuel
  •        Fuel Processing Technology
  •        International Journal of Biological Macromolecules
  •        Journal of Hazardous Materials
  •        Journal of Analytical and Applied Pyrolysis (JAAP)
  •        Journal of Colloid and Interface Science
  •        Journal of Material Science
  •        Journal of Porous Materials
  •        Materials (Polymers-Open Access)
  •        Materials Chemistry and Physics (MATCHEMPHYS)
  •        Microporous & Mesoporous Materials
  •        Particulate Science & Technology
  •        Powder Technology
  •        Recent Patents on Chemical Engineering
  •        Reviews in Chemical Engineering
  •        Separation and Purification Technology

    Patent(s)
      The Effect of Microwave energy on Production of Activated        Carbon from Waste Tea

   No: TR 2006 07179 B

   

     Research Project(s) Attended

 

  • Yagmur, E., Tiryaki, B. and Aktas, Z, “Production of Activated Carbon from Cellulose, Hemicellulose and Lignin”, BAP, Project No:11B4343005 (30 000TL). 2011-2012.
  • Aktas, Z., Yagmur, E., Gurten, I., Sych, Nataliya (Ukraine), Preparation and Characterisation of Low-Cost High Porous Activated Carbons from Agricultural by-Products and Their Adsorption Capacities” TÜBÝTAK, Project no: 109M400,  February/2010-June/2011.
  • A Teaching on Innovation Module for Engineering Programs (TO-INNOEN) Leonardo da Vinci Project, Mobility, Project no:  2008–1-TR1-LEO04–03134–1, 2008-2010.
  • Aktas, Z., Yagmur, E., Ozmak, M., Gurten, I.  “The Effect of Microwave Energy on Production of Activated Carbon from Waste Tea” Project no: 107M306, TÜBÝTAK, November/2007-November/2009 (~210.000 YTL)
  • Aktas, Z., Yagmur, E., Ozmak, M. “Preperation of Activated Carbon From Waste Tea and Characterisation”  BAP, Project no: 2007-07-45 006, 2007-2008
  • Aktas, Z., Ozmak, M, Yagmur, E., “Variation of Physical and Chemical Properties of Coals During Heat Treatment Process” BAP, Project no: 2005-0745 037.
  • Çalýmlý A., Aktaþ, Z. Yildiz, N. ,“The synthesis of nano-sized chitosan, hydroxyapaptite  and their composites and particle characterisation”, TUBITAK, October/2005-2007
  • Aktas, Z., "The Using of Treated Bentonite in Purifying Environmental Waste Water", Ankara University Research Fund, ARFO, Project No: 20000705032.
  • Aktas, Z.,Froth Flotation of Zonguldak Bituminous Coal” State Planning Organisation (DPT), Project No: 98K120740
  • Aktas, Z.,Effect of Surface Area and Pore Size Distribution of Coal on the Reduction of Mineral Matter” State Planning Organisation (DPT), Project No: 98K120740
  • Aktas, Z., “Mineral Matter Removal from Coal”, State Planning Organisation (DPT), Project No: 98K120720
  • Aktas, Z. "Investigation of Separation Properties of Some Turkish Coals in Dense Media" Scientific and Technical Research Council of Turkey (TÜBÝTAK), Project No: MÝSAG-DS4
  • Woodburn, E. T., Mohamed, N., Banford, A. ve Aktas, Z. "Optimal Control of Semi-Batch and Pilot Plant Flotation Cells by Feedback Regulation of the Froth Control" Research Grant Report, No. GR/F 58110, UK.

 

Articles in Learned Journals and Articles under Review (SCI) 

  •  I. Isil Gurten Inal, Stuart M. Holmes, Anthony Banford, Zeki Aktas ”The performance of supercapacitor electrodes developed from chemically activated carbon produced from waste tea”, Applied Surface Science 357 (2015) 696–703.
  • Yavuz Gokce, Burcu Cengiz, Nuray Yildiz, Ayla Çalimli and Zeki Aktas, “Ultrasonication of chitosan nanoparticle suspension: Influence on particle size” Colloids and Surfaces A: Physicochemical and Engineering Aspects 462 (2014) 75-81.
  • Yavuz Gokce and Zeki Aktas, “Nitric acid modification of activated carbon produced from waste tea and adsorption of methylene blue and phenol” Applied Surface Science 313 (2014) 352–359.
  • Bahar Tiryaki, Emine Yagmur, Anthony Banford, Zeki Aktas “Comparison of activated carbon produced from natural biomass and equivalent chemical compositions” Journal of Analytical and Applied Pyrolysis, 105 (2014) 276-283.
  • Ipek Karaman, Emine Yagmur, Anthony Banford, Zeki Aktas, “The effect of process parameters on the carbon dioxide based production of activated carbon from lignite in a rotary reactor, Fuel Processing Technology, 118 (2014) 34–41.
  • E. Yagmur, M. S. Tunc, A. Banford, Z. Aktas, “Preparation of Activated Carbon from Autohydrolysed Mixed Southern Hardwood”, Journal of Analytical and Applied Pyrolysis, pp, 470-478, 2013.
  • Isil Gurten, Meryem Ozmak, Emine Yagmur, Zeki Aktas“Preparation and characterisation of activated carbon from waste tea using K2CO3 Biomass & Bioenergy 37, pp. 73-81, 2012.
  • E. Yagmur, M. Ozmak, Z. Aktas, “A Novel method for production of activated carbon from waste tea by chemical activation with microwave energy”,  Fuel, 87, pp. 3278-3285, 2008.
  • Emine Yagmur, Emir H. Simsek, Zeki Aktas and Taner Togrul, "Effect of CuO receptor on the liquid yield and composition of oils derived from liquefaction of coals by microwave energy",  Energy Conversion and Management, 49, pp. 3043-3050, 2008.
  • Cengiz B., Gökçe Y., Yýldýz N., Aktaþ Z., Çalýmlý A., “Synthesis and Characterization of Hydroxyapatite Nanoparticles”, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 322, pp. 29-33, 2008.
  • Z. Aktas, J. J. Cilliers and A.W. Banford, “Dynamic froth stability: particle size, airflow rate and conditioning time effects”, International Journal of Mineral Processing, 87, pp. 65-71, 2008.
  • M. Ozmak and  Z. Aktas, Coal Froth Flotation: “Effects of Reagent Adsorption on the Froth Structure”, Energy and Fuels, 20, pp.1123-1130, 2006.
  • K. Hadler, Z. Aktas and J.J. Cilliers, "The Effects of Frother and Collector Distribution on Flotation Performance", Minerals Engineering, 18, pp. 171-177, 2005
  • D. Elçin, M. Eken, Z. Aktas, Sevil Çetinkaya, B. Sakintuna, Y. Yürüm, “Effect of g-irradiation on the structure of activated carbons produced from Turkish Elbistan Lignite”, Radiation Physics and Chemistry, 73, pp. 263-271, 2005
  • S. Bas, B. Sakintuna, B. Birkan, Y. Menceloglu, A. TaralpZ. Aktas, Y. Yurum “Lyophilization-induced structural changes in solvent-swollen and supercritical carbon dioxide treated low-rank Turkish coals and characterization of their extracts” Energy& Fuels 19 (3): 1056-1064 MAY-JUN, 2005.
  • E. Yagmur, E. Simsek, Z. Aktas, T. Togrul, “Effect of Demineralization Process on the Liquefaction of Turkish Coals in Tetralin with Microwave Energy: Determination of Particle Size Distribution and Surface Area“, Fuel, 84, pp. 2316-2323, 2005
  • N. Yildiz, Z. Aktas and A. Calimli, “Sulphuric Acid Activation of a Calcium Bentonite”, Particulate Science and Technology, 22, pp. 21-33, 2004.
  • W. Banford and Z. Aktas, “The Effect of Reagent Addition Strategy on the Performance of Coal Flotation”, Minerals Engineering, 17, pp.745-760, 2004.
  • Caglar Citir, Zeki Aktas, Ridvan Berber, “Off-line Image Analysis for Froth Flotation of Coal”. Computers and Chemical Engineering, 28, pp. 625-632, 2004.
  • N. Yýldýz, M. Erol, Z. Aktas and A.Çalýmlý, "Adsorption of Aromatic Hydrocarbons on BTEA- Bentonite". Adsorption Science and Technology, Vol:22, No: 2, pp.145-154, 2004.
  • Erol, M., Colduroglu, C., Aktas, Z.  "The Effect of Reagents and Reagent Mixtures on Froth Flotation of Coal", International Journal of Mineral Processing, 71, pp 131-145, 2003.
  • Aktas, Z., “Some factors affecting spherical oil agglomeration performance of coal fines”, International Journal of Mineral Processing, 65, pp 177-190, 2002.
  • Unal, Ý. and Aktas, Z., "Effect of Various Bridging Liquids on Coal Fines Agglomeration Performance", Fuel Processing Technology, 69 (2) pp 141-155, 2001.
  • Aktas, Z., “Adsorption of Non-ionic Surface Active Agent on Fine Coal and Lignite”, Turkish Journal of Chemistry, 25, pp 311-321, 2001.
  • Aktas, Z. and Woodburn, E. T.,“Effect of Addition of Surface Active Agent on the Viscosity of a High Concentration Slurry of a Low-Rank British Coal in Water”, Fuel Processing Technology, 62 (1), pp 1-15, 2000.
  • Aktas, Z. ,“Effect of Non-ionic Reagent Adsorption on Zeta Potential of Fine Coal Particles”, Turkish Journal of Chemistry, 24, pp 117-129, 2000.
  • Banford, A.W., Aktas, Z. and Woodburn, E. T., "Interpretation of the effect of froth structure on the performance of froth flotation using image analysis", Powder Technology, 98, pp 61-73, 1998
  • Aktas, Z., Karacan, F. and Olcay, A., "Centrifugal Float-Sink Separation of Fine Turkish Coals in Dense Media", Fuel Processing Technology, 55, pp 235-250, 1998
  • Aktas, Z. and Olcay, A., "Supercritical Toluene Extraction of a Reduced Turkish Lignite", Fuel Processing Technology, Vol. 48, pp 61-72, 1996
  • Aktas, Z. and Woodburn, E. T., "The Effect  of  Non-ionic Reagent Adsorption on the froth Structure and Flotation Performance of  Two Low Rank British Coals", Powder Technology, Vol. 83, No. 2, pp 149-158, 1995
  • Aktas, Z. and Woodburn, E. T., " The Adsorption Behaviour of Non-ionic Reagents on Two Low Rank British Coals", Minerals Engineering, Vol. 7, No. 9, pp. 1115-1126, 1994.

  

Symposia & Conferences Attended

International

  • 8th World Congress of Chemical Engineering, Challenges for A Changing World, Z. Aktas, “Activated Carbons from Various Biomasses and Characterisations”, 23-27 August, 2009, Montreal, Canada.
  • International Conference on Trans-national Cooperation in Distance and Blended Learning: New Approaches and Opportunities, September 19-20, 2006. Ankara, Turkey.
  • 40th International Microwave Power Symposium “Production of Activated Carbon from Waste Tea by Chemical Activation with Microwave Energy” , 9-11/08/2006, Boston, USA.
  • Templated synthesis of porous carbons and flower-like carbon fluorides using a natural zeolite”. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 228: U669-U669 102-FUEL Part 1 AUG 22 2004.
  • Reagents’04K. “The effects of frother and collector distribution on flotation performance”, 2004. UK.
  • European Symposium on Computer Aided Process Engineering-13,  ESCAPE-13, Off-line Image Analysis for Froth Flotation of Coal, 1-4 June, 2003, Lappeenrante, Finland. 
  • Synthesis of porous carbon materials by carbonization in natural zeolite nanochannels.” Abstract of papers of the American Chemical Society, 226: U538-U538 056-FUEL Part 1 SEP 2003.
  • Eastern Mediterranean Chemical Engineering Conference, EMCC3, The Surface Area Change and Formation of Crystal Structures During Activated Carbon Production from Fir (Abies bornmulleriana) Wood, May 13-15, 2003,  Greece.
  • Eastern Mediterranean Chemical Engineering Conference, EMCC2, Z. Aktas, ODTU (METU), May 20-24, 2001, Poster, Book of Abstracts, Sep3.7, TURKEY.
  • Mineral Processing on the Verge of the 21st Century ‘Oil agglomeration of Zonguldak bituminous coal’, October: 16-18, Antalya, Turkey, 155-159, 2000.
  • Nato Advanced Study Institute (NATO-ASI), "Hydrogen Energy System, Utilization of Hydrogen and Future Aspects", August 21-September 3, 1994, Akçay-TURKEY.
  • Nato Advanced Study Institute (NATO-ASI), "Methods of Model Based Process Control", 7-17 August, 1994, Antalya-TURKEY.
  • The 1993 IChemE Research Event, Research and Technology Symposium and Recruitment Fair, January, 1993, Birmingham/UK.
  • The 1992 IChemE Research Event, Research and Technology Symposium and Recruitment Fair, 9-10 January, 1992, Manchester/UK.
  • Advances in Particulate Technology, "The Effect of Ultrafine Coal on Froth Stability During Coal Flotation", Second Symposium on Advances in Particulate Technology, 15-17 April, 1991, Guilford/UK.
  • The 1991 IChemE Research Event, "Feedback Control of Flotation Cells Using Image Analysis", Research and Technology Symposium and Recruitment Fair, 9-10 January, 1991, Cambridge/UK.

 

National

  • First National Carbon Congress, Adsorption of Methylene Blue and Phenol on Activated Carbon Modified by Microwave Heating, Istanbul Technical University, March  12-13, Istanbul, 2015.
  • Internationally Participated Electrochemistry Workshop, Nanostructure Modified Electrochemical and Bioelectrochemical SystemsUsability of activated carbon produced from waste tea as electrode material in electrochemical double layer capacitors’’, June 23-28, Mugla, 2013.
  • The Tenth Chemical Engineering Congress (UKMK-10), “Investigation of Tetralin Oxidation in the Presence of V2O5 by Microwave Heating” August 3-6, Koç University, Istanbul, 2012.
  • The Tenth Chemical Engineering Congress (UKMK-10), “Comparison of Surface Properties of Activated Carbons Produced from Waste Teas Using Two Different Chemical Activating Agents” August 3-6, Koç University, Istanbul, 2012.
  • The Ninth Chemical Engineering Congress (UKMK-9), “Characterisation of Activated Carbons from Waste Tea Produced in Two Different Systems” Gazi University, June 22-25, Ankara 2010.
  • The Ninth Chemical Engineering Congress (UKMK-9) ‘’Production of Activated Carbon Using Tea Wastes and Practice in Adsorption Processes. Gazi University, June 22-25, Ankara 2010.
  • The Ninth Chemical Engineering Congress (UKMK-9) “Regeneration of Commercial Activated Carbon by Two Different Microwave Systems” Gazi University, June 22-25, Ankara 2010.
  •  
  • The Eighth Chemical Engineering Congress (UKMK-8), “Production and characterisation of Activated Carbon Produced from Waste Teas Using K2C03”, August 26-29, , Malatya, 2008.
  •  
  • NanoTr III Nanotechnology and Nanoscience ConferenceSynthesis of Chitosan Nanoparticle”’, Bilkent University, June 11 – 14, Ankara, 2007.
  • The Sixth Chemical Engineering Congress (UKMK-6), “The Adsorption of MTBE on Porous Solids”, Book of Abstracts, September 7-10 Ege University, SKCT4, Bornova,  Ýzmir, 2004.
  • The Sixth Chemical Engineering Congress (UKMK-6), “The Effect of Surface Active Agents on Froth Flotation of Zonguldak Bituminous Coal”, Book of Abstracts, September 7-10 Ege University, KT19, Bornova,  Ýzmir, 2004.
  • The Sixth Chemical Engineering Congress (UKMK-6), “The Effect of Demineralisation on Coal Liquefaction Using Microwave Energy”, Book of Abstracts, September 7-10 Ege University, KT18, Bornova  Izmir, 2004.
  • National Meeting on Automatic Control, September 9-11, Book of Abstracts, TOK 2002, ODTU, pp 435-441. 2002.
  • The Fifth Chemical Engineering Congress (UKMK-5), “The Effect of Surface Active Adsorption of Froth Structure and Flotation Performance During Froth Flotation of Coal” Book of Abstracts, September 2-5, Ankara University, KT11, Ankara, 2002.
  • The Fifth Chemical Engineering Congress (UKMK-5), “Froth Flotation of Zonguldak Bituminous Coal” Book of Abstracts, September 2-5, Ankara University, KT10, Ankara, 2002.
  • The Fifth Chemical Engineering Congress (UKMK-5), “Surface Active Agent Adsorption on Coal Surfaces” Book of Abstracts, September 2-5, Ankara University, ÇAD16, Ankara, 2002.
  • The Fifth Chemical Engineering Congress (UKMK-5), “Heavy Media Separation of Bituminous Coal and Lignite and Beneficiation of Supercritical Char” Book of Abstracts, September 2-5, Ankara University, ÇAD17, Ankara, 2002.
  • GAP IV. Engineering Congress, “Oil Agglomeration of Manisa Soma Sarýkaya Lignite” Book of Abstracts, Harran Unþversity, June 06-08, pp1625-1630, 2002.
  • The XIV. National Chemistry Congress, Investigation of Acid Activation of Çankýrý Bentonite” September 10-15, Dicle University, Book of Abstracts, KS-P14, Diyarbakýr, 2000.
  • The Fourth Chemical Engineering Congress (UKMK-4), “Oil Agglomeration of Coal” September: 4-7, Ýstanbul University, Ýstanbul, 164-169, 2000.
  • The 12. Coal Congress, "Oil Agglomeration of Bituminous coal and Lignite”, May 23-26, 2000, Zonguldak, pp 251-260.
  • The Second Chemical Engineering Congress (UKMK-2), "Investigation of Separation Properties of Some Turkish Coals in Dense Media" Proceedings Vol:2, September 9-13, 1996, pp 1299-1305, ÝTÜ, Ýstanbul, TURKEY
  • IIIrd Chemistry and Chemical Engineering Symposium, Kimya-86, 17-20 September, 1986, ANKARA.