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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

Making a difference is the most important thing for Gary Kirsten
2012-05-16

 

Gary Kirsten
16 May 2012

“Can I make a difference in someone’s life?” This was the central driving force for Gary Kirsten, head coach of the 2011 World Cup winning Indian cricket team. He currently coaches the Proteas.

Gary was the first guest speaker at a new series of lectures at our Business School. Challenges and solutions in management will be highlighted in the series. In his lecture, Gary was interviewed by Prof. Johann Coetzee, Extraordinary Professor at the Business School. The audience got a glimpse of the person often seen on television screens and they travelled with him from his childhood days at the Newlands Cricket Ground to his days in New Delhi as head coach of the Indian team.

His challenge in India was to develop a new culture in a team with very valuable and expensive brands. His light-bulb moment occurred on a team-building visit to Australia. His question to the team was what he could do for them and what they would expect from him. The turning point was Sachin Tendulkar’s answer: I would like you to be my friend. Tendulkar’s wife’s comment on the winning night was the proof of his success. She said: “The last three years were the happiest in my husband’s life.”

Gary said it was an incredible privilege to make a difference in people’s lives. “I wake up asking myself where I can make a difference in someone’s life. You must create an environment for people to enjoy the game, challenge one another and thrive.”

He is confident that the Protea team has the potential to be a great cricket team. He said the upcoming England tour is a test. “This tour will test us to be the top team in the following years. I would like to set them up for the best chance to win.”

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