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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

Alumnus presents 27th Sophia Gray Memorial Lecture
2015-09-07

 
Anton Roodt
Photo: iFlair

In a packed Civic Theatre in Bloemfontein, Anton Roodt, an alumnus from the UFS Department of Architecture, presented the 27th Sophia Gray Memorial Lecture.
 
Roodt received numerous awards for his work during his career. He also completed three masters degrees at the UFS, all of them cum laude.

The theme for his lecture was: Big dreams in a small city. Places of memory¦Spaces of imagination.
 
In his presentation, he focused mainly on President Brand Street, one of the most beautiful streets in South Africa – a gem waiting to be rediscovered, as well as Waaihoek, where many projects are planned for the future.
 
During his career, Roodt has been involved in various projects in these areas, including the Fourth Raadsaal, for which he received a FSIA Award in 2011. The Mapikela House in Batho is another project he was involved in.
 
He believes universities are small cities with a good deal of ambition. A number of infrastructure projects on the campuses of the UFS were designed by Roodt Architects. On the Bloemfontein Campus, this includes the Student Centre on the Thakaneng Bridge, the Main Gate, the Financial Planning Law Building, and the Computer Centre, as well work done on the Albert Wessels Auditorium. They also designed the dining room and the Main Entrance on the Qwaqwa Campus.
 
Roodt was introduced to the audience by the familiar singer and his university friend, Coenie de Villiers, with the question: “Why architecture?” He replied: “It is one of the best professions to take you to places most people will never be able to visit – sometimes literally to the feet of kings.”
 
Roodt believes that architects are sellers of dreams. “Dreams are the purest form of imagination. Architects dream of places as if people matter,” he said.
 
The Women in Architecture initiative was also launched by the South African Council for the Architectural Profession at the event. Of more than 8 800 professional architects, only 21% are women.

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