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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

2014 Winter Graduation
2014-06-27

 
It is time for the 2014 Winter Graduation on our Bloemfontein Campus. From 2 – 4 July 2014 Masters and Doctoral degrees will be bestowed on graduates from across all seven faculties as well as the School of Open Learning. These include the conferral of Medicine degrees on the South African Cuban trainees.

Wednesday 2 July 2014 at 14:30: School of Open Learning
The School of Open Learning will confer a total of 609 degrees this year – almost double compared to the 320 of last year.

Thursday 3 July 2014 at 09:30: Faculty of Natural and Agricultural Sciences
Prof Magdalena Blum will receive an Honorary Doctorat, DPhil honoris causa, at this event. Prof Blum is an Extension Systems Officer in Rome. She works for a specialised agency of the United Nations called the Food and Agriculture Organization. This organisation’s mandate is:
• to improve nutrition,
• increase agricultural productivity,
• raise the standard of living in rural populations and
• contribute to global economic growth.

Her position serves to modernise and strengthen rural advisory services, their systems and networks worldwide. She has filled this position for almost nine years.

Prof Blum is driven by a passion for development, humanitarian work and female upliftment, but most of all, to enable people to help themselves.

Blum’s life has taken her from a small German village to Africa, Asia and Europe – and she has made an impact wherever she went.

Thursday 3 July 2014 at 14:30: Faculties of Economic and Management Sciences, Humanities, Education, Health Sciences, Law and Theology
At this ceremony, Faculty of the Humanities will award an Honorary Doctorate, DPhil honoris causa, on Prof Laura Mulvey. She is a feminist film theorist and worked at the British Film Institute for many years. She is currently a professor at Film and Media Studies at Birkbeck, University of London.

Prof Mulvey was prominent as an avant-garde filmmaker in the 1970s and ‘80s. In collaboration with her husband, Peter Wollen, she co-wrote and co-directed:
• Penthesilea: Queen of the Amazons (1974),
• Riddles of the Sphinx (1977, perhaps their most influential film),
• AMY! (1980),
• Crystal Gazing (1982),
• Frida Kahlo and Tina Modotti (1982), and
• The Bad Sister.

In 1991, she returned to filmmaking with Disgraced Monuments, which she co-directed with Mark Lewis.

Friday 4 July 2014 at 10:30: Special Graduation Ceremony
Conferral of Medicine Degrees on the South African Cuban trainees at the UFS

Live streaming will be available on: http://www.ufs.ac.za/ufslivestreaming/

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