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09 December 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Dr Refilwe Mogale
Dr Refilwe Mogale received her PhD in Chemistry. She is fascinated by the ability of chemistry and science in general to solve some of the world’s most pressing issues, such as water scarcity.

“Chemistry chose me,” says Dr Refilwe Mogale, who wanted to enrol for Psychology years ago when she decided to study at the University of the Free State (UFS). 

“On the day of registration, however, as I was standing in the queue, something inside me said this was not the right choice for me. Ultimately, I chose my second option, which was a BSc degree majoring in biology, physics, and chemistry.”

“Once I started the BSc programme, I gravitated towards chemistry, and as difficult as it was juggling classes and six-hour practical sessions, I loved it. I am fascinated by the ability of chemistry and science in general to solve some of the world’s most pressing issues, such as water scarcity, alternative generation, access to antibacterial hygiene products, as well as novel strategies to cure diseases, among many other things.”

The UFS awarded Dr Mogale a PhD in Chemistry on 9 December 2022.

Addressing a global challenge

Being passionate about applied chemistry – where scientific research can be used to create products to address everyday problems – Dr Mogale focused her thesis on Aluminium- and Zirconium-based metal organic frameworks with azobenzene and stilbene dicarboxylate ligands for use in wastewater treatment. 

She has also published multiple articles on topics of environmental chemistry and wastewater management in international journals. 

Dr Mogale is of the opinion that water pollution by financially lucrative industries and access to clean drinkable water is one of our planet’s most challenging environmental and health issues. “The waste generated by some of the industries that contribute heavily to our country’s economy, such as the textile, agricultural, and medical industries, may end up in the limited drinking water resources we have. I chose my research topic because I wanted to positively contribute to this global challenge,” she says.

“My research was based on making highly porous metal-organic frameworks (MOF) to be used in the wastewater treatment technique called adsorption,” explains Dr Mogale, describing MOFs as “really cool three-dimensional ‘sponges’ that can suck up very high amounts of gases and pollutants, trapping them in their pores. These trapped materials can later be released from the pores to be re-used when MOFs are exposed to certain stimuli.”

She continues, “Low cost and simplicity make this method attractive for industrial use. Considering our current energy crisis, other methods are not ideal, since they require large amounts of energy.” 

Focused on developing highly effective adsorbent for wastewater purification systems, Dr Mogale synthesised a novel MOF with one of the highest adsorption capacities compared to existing counterparts.

According to her, should MOFs with their incredibly high surface areas – which allow them to absorb more waste than their existing counterparts – be implemented in wastewater purification systems, they would be able to address the environmental issue of water pollution and the health issue of access to drinkable water.

Tackling everyday societal issues

She is currently doing a postdoctoral fellowship in the UFS Department of Chemistry – to broaden her knowledge in chemistry beyond MOFs. Her plans are, however, to transition to industry and ultimately entrepreneurship, where she will be able to develop scientific products that can tackle everyday societal issues. 

Dr Mogale dreams of adding value to society by practically contributing to the water crisis issue through the development of low-cost water generation and purification products.

News Archive

2011 Leadership group meets for the first time
2011-08-01

 

Photo: Hannes Pieterse

The long application process, panel interviews and nail-biting wait finally came to an end the past week, when the cream of our first-year class of 2011 gathered in the Scaena Theatre on our Bloemfontein Campus, for their first group meeting as the selected Leadership for Change cohort.

These 150 students, from all our faculties, will over the following year be groomed to be leaders, not only at the university, but also in their respective fields and chosen careers.
The first group of students will depart for their respective universities in America and Europe on 22 September 2011, where they will spend two weeks. The second group of students will depart for universities in Japan in January 2012.

Although they have all passed a gruelling selection process, the real hard work is only starting now for these bright young students.

The programme will take place in four phases. During the preparation phase, which has now kicked off, students are prepared for the experience ahead, while being made aware of exactly what to expect from the programme.

In the study-abroad phase, students will be placed at 15 partner institutions in various countries, and will be divided into groups of six to twelve people. According to Prof. Aldo Stroebel, Director of International Academic Programmes, the groups will be diverse, in that there will be a mix of races, genders and study fields, which should guarantee dynamic interaction.

During the group’s first meeting this week, they were informed of the important goals of the Leadership for Change Programme, by Mr Rudi Buys, Dean of Student Affairs.

He imparted the gravity of their selection on the students by saying, “You may not get it yet, but I understand the reason we are all here. I understand that by looking at what you achieve after this programme, we can tell what the country could possibly achieve in the future. It is immensely moving to see the way you all carry yourselves, since I can see something special and unique in each of you.”
“You are all here, not because of which school you went to, or your race, or who your parents are, but because you all show potential to be something great.”

Prof. Stroebel reminded the group that despite the excitement that they all have about visiting universities in America, Europe and Asia, these visits should be seen as study trips.

“You may have three days to acquaint yourselves with the surroundings, but after that there will be very little sightseeing and a lot of hard work.”

They will participate in programmes designed by their respective host institutions, aimed at exposing them to different cultures, lifestyles and beliefs.

They will be accompanied by our staff, who Prof. Stroebel says will grow with the students, as they will be expected to guide the students through their tasks and assignments and interact with them on a daily basis.

Upon their return, there will be a debriefing phase, during which they will be expected to provide feedback on their experiences, as well as submit assignments which they will be assigned at their respective institutions.

The final phase is known as the impact phase, as this will see the students apply what they have learned in a positive manner and help drive the university to the future and to becoming a world-leading tertiary institution.

 

Media Release
1 August 2011
Issued by: Lacea Loader
Director: Strategic Communication
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za


 

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