COURSE UNIT TITLE

: COLLOIDS AND SURFACE CHEMISTRY

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
NNE 5033 COLLOIDS AND SURFACE CHEMISTRY ELECTIVE 3 0 0 8

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

Offered to

Nanoscience and Nanoengineering
Nanoscience and Nanoengineering
Nanoscience and Nanoengineering

Course Objective

At the completion of this class you should be able to: to understand the basic nomenclature, concepts and tools of colloid and interface science and engineering; multi-phase nano-systems; mechanics and thermodynamics on small scales; to describe the effect of surface forces (surface tension) on such phenomena as capillary rise and vapor pressure; to determine what structures result in molecules that are attracted to the interfacial regions. Be able to calculate their concentration and their effect of surface tension; to explain the association phenomena of surface-active materials such as micellization and adsorption; to define the major forces between colloidal particles, both attractive and repulsive. Be able to calculate the effect of these forces on
flocculation/coagulation processes; Be able to use laboratory apparatus to measure colloidal properties including surface tension, surface pressure vs. surface area relationships, particle size distribution, zeta potential and viscosity.

Learning Outcomes of the Course Unit

1   to be able to understand the relationship between colloid particles and nanoparticles
2   to be able to know the word 'colloid' refers to particles in micron to sub-micron ranges where surface properties and interactions (rather than the bulk properties) become increasingly important with declining size or separation distance.
3   to be able to learn the basic concepts and tools for the analysis of colloidal and interfacial properties, behavior and interactions together with brief introduction to some advanced topics such as self-assembly, mesopatterning of soft materials, functional materials, nano-composites, superhydrophobicity, super-glue, etc.which have attracted increasing attention recently.
4   understanding of colloids and interfaces is central to even such classical phenomena and applications such as (to name very few): adhesion, particle aggregation, wetting, detergency, oil-recovery, flotation, nucleation, bio-surfaces, chromatography, paints, composite materials; foams, emulsions, aerosols and other (nano) particulate dispersions.
5   to be able to understand the importance of interface and colloids in nanoscale particles

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Introduction: basic terminology, description of size (molecular weight) distribution
2 Surface tension: capillary rise, equations of Kelvin, Young and Laplace, contact angle effects
3 Surface active materials: thermodynamics of micellization, micellar structures
4 Adsorption from solution: spread monolayers, surface pressure, Langmuir trough
5 Electrokinetics: development of electrostatic surface charges, double layer theories, effect on flocculation rates
6 Electrokinetic phenomena: streaming potential, electrophoresis
7 van der Waal forces and related interactions in interface
8 Midterm
9 Colloid stability: DLVO theory, coagulation phenomena
10 Measurement techniques: light scattering methods, sedimentation (centrifugation), electrophoresis, surface tension and viscosity measurements
11 Some experimental techniques in colloid and interface science
12 Presentations (Homework) I
13 Presentations (Homework) II
14 Evaluation and total disscussion of the homeworks and presentations

Recomended or Required Reading

1. John C. Berg, An Introduction to Interfaces and Colloids: The Bridge to Nanoscience, World Scientific, ISBN: 978-981-4293-07-5 (2009).
2. Paul C. Hiemenz, Principles of Colloid and Surface Chemistry, Marcel Dekker, any edition starting with the 2nd edition, 1986.
3. Arthur W. Adamson,Physical Chemistry of Surfaces, 5th edition, Wiley, 1990.
4. Robert J. Hunter, Clarendon, Foundations of Colloid Science, Oxford, Volume 1, 1989.
5. Carel van Oss, Interfacial Forces in Aqueous Media, Marcel Dekker or Taylor & Francis, 1994.

Planned Learning Activities and Teaching Methods

Fourteen, three-hour lectures backed up with one midterm examination and one workshop and interactive presentations. All the didactic material is preliminary available to the student both in paper and electronic form. The books used to prepare the lectures are available at the Library of the University. Further data and/or information may be obtained consulting the Library of the University also using the new wireless network.

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 PRS PRESENTATION
4 FIN FINAL EXAM
5 FCG FINAL COURSE GRADE MTE* 0.30 + ASG * 0.20 + PRS * 0.10 + FIN * 0.40
6 RST RESIT
7 FCGR FINAL COURSE GRADE (RESIT) MTE* 0.30 + ASG * 0.20 + PRS * 0.10 + RST * 0.40


Further Notes About Assessment Methods

Lecture, Discussion, Question & Answer, Field Trip, Team/Group Work, Demonstration, Experiment, Drill - Practise, Case Study, Brain Storming

Assessment Criteria

Midterm(%30)+ Homework(%20)+Presentation(%10)+Final exam(%40)

Language of Instruction

English

Course Policies and Rules

Students will attend 14 tutorials and 1 workshop on the material covered in this course. Attendance is compulsory at both till %70, but the rules for the attendence up to the students and can be obtained from the web site of Graduate School of Sciences at http://www.fbe.deu.edu.tr/.

Contact Details for the Lecturer(s)

Prof. Dr. Mehmet Kadir Yurdakoç
Dokuz Eylül University, Faculty of Science, Department of Chemistry
Phone: (232) 3018695
E-mail: k.yurdakoc@deu.edu.tr

Office Hours

Wednesdays 5.,6.th hours.

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 12 3 36
Tutorials 4 2 8
Preparations before/after weekly lectures 12 4 48
Preparation for midterm exam 1 25 25
Preparation for final exam 1 30 30
Preparing presentations 10 4 40
Reading 2 5 10
Midterm 1 2 2
Final 1 2 2
TOTAL WORKLOAD (hours) 201

Contribution of Learning Outcomes to Programme Outcomes

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