Dr. Hassan .M Khan

 

Expertise Profile

Position Director & Professor
Name Dr. Hassan Mahmood Khan
Phone
Nationality Pakistani
Email This e-mail address is being protected from spambots. You need JavaScript enabled to view it , This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Department Radiation Chemistry Laboratory,
Qualifications

 

Ph.D. Dec 1982 University of Saskatchewan Chemistry

Saskatoon, Canada.

M.Sc. Jan 1976 University of Peshawar, 1st Chemistry (Physical)

Peshawar.

B.Sc. Sep 1973 University of Peshawar, 1st Chemistry, Physics , Maths

Peshawar.

Through out first class academic career (Matric, F.Sc, B.Sc. and M.Sc.)

with honours and merit scholarships.

Specialization:

Physical Chemistry, Radiation Chemistry, Environmental Chemistry,

Chemical Kinetics

Specialization Environmental Chemistry, Photochemistry, Radiation Chemistry, Chemical Kinetics.
Research

1. Environmental applications of Advance Oxidation Technologies (AOTs): Removal of toxic chemicals, such as MTBE (a common fuel oxygenate) from water and computer simulation of kinetic processes for commercial applications of the technologies (in collaboration with Prof. W.J. Cooper of University of California, Irvine, CA).

2. Removal of harmful compounds from water using radiation chemistry, photochemistry and photocatalysis, such as pesticides, POPs and THMs (disinfection’s by-products) from drinking and wastewater using Advance Oxidation Processes (AOPs), Experimental kinetics and computer kinetic modelling forpollution control in industrial effluents (in Collaboration with Prof. Dr. Dion Dionysiou of University of Cincinnati USA and Prof. Dr. Detlef Bhanemann of University of Hannover, Germany).

3. Assessment of environmental pollution due to industrial and other wastes (using analytical methods GC, HPLC, IC, AA etc.) and their treatment using radial or photochemical methods,

4. Development and standardizations of new analytical methods for the detection of irradiated foods (TL method, ESR, DNA Comet Assay and PSL methods).

5. Development and calibration of Radiation Dosimetry systems (for Food Irradiation, Radiation Processing, Low dose radiations etc.),

6. Radioactive contamination of foods, soil and environmental samples using gamma spectroscopy.

7. Kinetics and radiation and photochemistry chemistry of aqueous solutions.

Academic Honours and Awards

Winner of prestigious:

Senior Fulbright Fellowshipfor research at the Department of Civil and Environmental Engineering, University of California at Irvine, USA (2007-08) won in an international competition.

Fulbright Fellowshipfor post-doctoral research at the National Institute of Standards and Technology (NIST), Gaithersburg, USA (1986-87) won in an international competition.

A. von Humboldt Fellowship for research in Federal Research Centre for Nutrition, Karlsruhe Nuclear Research Centre, Germany (1993, 94) awarded in a worldwide competition.

Herzberg Fellowship1980, University of Saskatchewan (Canada) for excellence in research.

University of Saskatchewan (Canada) Merit Scholarships (1976-81) in an

international competition for Ph.D. work.

M.Sc. First position in the University and gold medal.

B.Sc. Second position in the University.

EXPERIENCE (TEACHING and RESEARCH):

March 2000 to Present

Professor and Head, Radiation Chemistry Labs., N.C.E. Physical Chemistry University of Peshawar

Teaching Kinetics and Rad. Chem. courses and research supervision of M.Phil and Ph.D. students.

Jan. 2002 to Jan. 2004

Scientific Consultant, KACST, Riyadh

Saudi Arabia

Set up laboratory and lead research in kinetic modelling and environmental applications of radiation chemistry

June 94 to Feb. 2000

Associate Prof. & Head, Radiation Chemistry Labs., N.C.E. Physical Chemistry University of Peshawar

Teaching Physical Chemistry and kinetics courses and research guidance

April 93 to Dec. 93

Von Humboldt Fellow and Guest Scientist, BFE, Karlsruhe, Germany

Advance research in food irradiation and radiation dosimetry

May 84 to May 94

Assistant Professor,

N.C.E. Physical Chemistry University of Peshawar

Teaching chemistry courses and research guidance of M.Phil./Ph. D. students

Oct. 86 to July 87

Fulbright fellow and Guest Scientist, NIST, Gaithersburg, MD, USA

Advance research in high and low dose radiation dosimetry

June 83 to Apr.84

Lecturer,

N.C.E. Physical Chemistry University of Peshawar

Teaching courses and research supervision of post-graduate students

Oct.76 to Dec.82

Research/Teaching Fellow,

University of Sask. Saskatoon, Canada

Ph. D. research and Teaching and supervision of undergraduate Chemistry Labs.

Apr.76 to Sep.76

Lecturer, Institute of Physical Chemistry, University of Peshawar.

Teaching physical and analytical chemistry courses and laboratory supervision.


SHORT COURSES:

Organised and successfully conducted short courses in radiation chemistry, chemical kinetics, etc. for university teachers at the University Grants Commission and participated in several university/college teachers training programmes as resource person.

Experience of teaching graduate and undergraduate level courses in General Chemistry, Physical Chemistry, Chemical Kinetics, Radiation Chemistry, Photochemistry and Inorganic Reaction Kinetics

Research Experience

Research interests:

Environmental Chemistry, Photochemistry, Radiation Chemistry, Chemical Kinetics.

CURRENT RESEARCH PROJECTS:

1. Environmental applications of radiation chemistry: Removal of toxic chemicals, such as MTBE (a common fuel oxygenate) and THMs (disinfection’s by-products) from drinking and waste water using Advance Oxidation Processes (AOPs), Experimental kinetics and computer kinetic modelling forpollution control in industrial effluents,

2. Assessment of environmental pollution due to industrial and other wastes (using analytical methods GC, HPLC, IC, AA etc.) and their treatment using radial or photochemical methods,

3. Development and standardisation of new analytical methods for the detection of irradiated foods (TL method, ESR, DNA Comet Assay and PSL methods).

4. Development and calibration of Radiation Dosimetry systems (for Food Irradiation, Radiation Processing, Low dose radiations etc.),

5. Radioactive contamination of foods, soil and environmental samples using gamma spectroscopy.

6. Kinetics and radiation and photochemistry chemistry of aqueous solutions.


DETAILS OF RESEARCH EXPERIENCE AND SCIENTIFIC TEHNIQUES USED

Removal of toxic chemicals from water is being investigated using Advance Oxidation Processes (AOP), such as gamma rays; Analysis of drinking and ground water for toxic chemicals, such as MTBE, THMs and other fuel oxygenates, disinfection’s by-products, pesticides or toxic metals, using Gas Chromatography, HPLC, Ion Chromatography and Atomic Absorption Spectrophotometers are being studied. Kinetic simulation for removal of these toxic chemicals by computer modelling, which can be useful for up gradation of system to large scale, is being carried out and compared with the experimental decay kinetics results.

. Research in radiation chemistry of aqueous solutions: Fast reaction kinetics techniques, such as Pulse Radiolysis and Flash Photolysis of aqueous solutions of platinum(II) and platinum (IV)-ammine complex ions have been studied. Characterisation of Pt(I) and Pt(III) transient species, generated by the reaction of aqueous free radicals or by flash photolysis, employing optical and conductivity detection techniques, and interpretation and computer analysis of kinetic results have been carried out to elucidate the reaction mechanism.

Assessment of industrial effluents using different analytical methods is being investigated. Radiation and photochemical induced decontaminations of industrial wastes from textile, paper and pulp, tanneries and other industries are being carried out using Co-60 gamma ray source and UV-lamps.

Development of new analytical methods for detection of irradiation treatment of a variety of foods using Thermoluminescence (TL) or Photostimulated thermoluminescence (PSL) of mineral contaminants as well as other methods, such as Electron Spin Resonance (ESR) and Electrophoresis (DNA Comet Assay) have been carried out in collaboration with the Federal Research Centre for Nutrition, Karlsruhe, Germany.

Thermoluminescence Dosimetry (TLD) using laboratory quartz for food irradiation applications have also been investigated.

Research work in radiation dosimetry and radiation chemistry have been carried out using cobalt-60 gamma-rays source at the Nuclear Institute for Food and Agriculture (NIFA), Peshawar. Radiation dosimetry using indigenously manufactured polymethylmethacrylate sheets for possible use in radiation processing industry have been carried out. Radiation dosimetry of dyed and undyed plastic sheets, window glasses and radiochromic films for use in food irradiation and sterilisation of medical products, depth dose distribution and dose profile for gamma cell, commercial irradiator and linear accelerator have been investigated in detail. New innovations in radiation dosimetry such as optical wave-guide dosimetry and fluorescence dosimetry using gamma rays or electron beam have been carried out in collaboration with U.S. National Institute of Standards and Technology (NIST), Gaithersburg, Maryland (USA).

Research in radioactive contamination of foods and environment has been carried out with the collaboration of PINSTECH, Islamabad. Fresh vegetables, fruits, beef and poultry meat, eggs, milk, water, soil, cement, fertiliser, and their raw materials, phosphate rocks and construction material samples have been analysed using gamma spectroscopy with a HPGe detector. Tritium level in river, steam and rainwater has also been determined.

Supervision

Have so far supervised fifteen M.Phil. and seven Ph.D. students who have successfully graduated out. Presently supervising ten M.Phil. and Ph.D. students.

List of research projects completed

Ph.D. projects completed:

Radiation dosimetry using dyed and undyed PMMA plastics (1984-89)

High dose radiation dosimetry using plastic films (1986-91)

Measurement of natural radioactivity levels in fertiliser and construction materials (1991-95)

Measurement of high and low doses of ionisation radiation using aqueous solutions (1991-96)

Analytical methods for the detection of irradiated foods (1991-97)

New analytical methods for identification of radiation treatment of foods (1995-2003)

M.Phil. projects completed:

Characterisation studies of gamma irradiated and unirradiated PMMA (1984-87)

Chemical dosimetry using aqueous solutions (1987-91)

Radioactive contamination of food and environmental samples (1989-92)

Low dose fluorescence dosimetry (1989-92)

Spectrophotometric analysis of window glass as radiation dosimeter (1989-92)

Depth dose distribution for Co-60 gamma ray sources using plastic sheets (1989-93)

High dose dosimetry using blue PMMA sheets (1989-93)

Radioactive contamination of food and environmental samples of NWFP (1991-94)

Environmental study of some industrial effluents of Peshawar and nearby areas (95-99)

Radiometric analysis of soil and food samples of Jhanger valley of Punjab (1997-2000).

Removal of chromium from industrial effluents by irradiation (98-03).

Radiation dosimetry using aqueous dye solutions (2004-2006)

COMPUTER EXPERIENCE:

Have good knowledge and experience of use of computer in research and teaching, computer modelling for chemical kinetics systems etc.

Administrative Experience

Head, Radiation Chemistry Laboratory, 1992 to present

Member of disciplinary committee for employees

Member of purchase committee for equipments, PCs and chemicals,

Internal Auditor (for carrying out in-house auditing of the department)

Experience of preparing and successfully completing PC-1 form (submitted to the Ministry of Finance/Education/UGC for all administrative, academic and research funding of the whole department)

Chief Editor of the research journal PHYSICAL CHEMISTRY (which includes scientific evaluation of the research articles submitted, correspondence with authors, referees and publishing of the journal)

Experience of arranging conferences, seminars and short courses

Member of referee’s panel of several international journals.

Have acted as external or internal examiner for evaluation of M. Phil and Ph.D. theses of several universities.

Have successful experience of development of research collaboration with different organizations, such as PARC, NIFA, PINSTECH, PIEAS, etc. in Pakistan as well as world renowned laboratories in other advance countries and of conducting interdisciplinary research work.

OTHER COMMUNITY ACTIVITIES:

Member of the Young Scientist Good Governances Group

Member of the Champions of Reforms, Pakistan 2010.

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