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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

Growth in scholarly books ‘is remarkable’
2016-09-16

Description: Scholarly Books 2016 Tags: Scholarly Books 2016

The UFS is proud of the variety of books and
scholarly articles published by scholars
in various fields.
Photo: Charl Devenish

The UFS has shown steady growth in its output of scholarly articles. Dr Glen Taylor, Senior Director of Research Development, says “the UFS has shown remarkable growth in the output of scholarly book publications over the recent years." The 13,83 subsidy units from scholarly books in 2010 has grown to 98,52 in 2014, elevating the university to fourth position nationwide. 

“It is encouraging for the research office to see that the number of books has increased over the years, together with the units we receive for subsidy, but also the steady increase in the quality of our scholarly books in general,” he said.

Contributors to the growth in scholarly publications include Dr Christian Williams of the Department of Anthropology, celebrated journalist Zubeida Jaffer, as well as JC van der Merwe, the Deputy Director of the Institute for Reconciliation and Social Justice (IRSJ), and Dionne van Reenen, researcher and PhD candidate at the IRSJ. Dr Williams received the 2016 Distinguished Scholar Book Prize at the official opening of the UFS earlier this year. The book, National Liberation in Postcolonial Southern Africa: A Historical Ethnography of SWAPO’s exile camps, is the first full-length scholarly monograph on SWAPO and Namibians in exile. 
 
The 13,83 subsidy units from scholarly books in 2010 was approximately a 10% increase in outputs from 2005 to 2010. In 2010, the higher education institution sector as a whole produced 401,68 units from scholarly books. The UFS contribution of approximately 3,44% put the university in tenth position. 

“The increase in subsidy for scholarly books should stimulate the sector further, and an increase in scholarly books is expected, which complements the university research output strategy to become a leading research-intensive institution,” Dr Taylor said.

 

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