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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

Statement regarding pulping of books by the UFS Sasol Library
2017-12-07


With reference to reports in the media and social media since 5 December 2017 about the pulping of books by the UFS Sasol Library, the executive management of the University of the Free State (UFS) would like to put the matter into perspective.
 
The book collection of the library is governed by a Library Committee of Senate, and no books can be removed from the library without formal approval from the committee. The university values the wealth of knowledge preserved in the library, and will not act irresponsibly with its collection.
 
Although the executive management takes note of the comments of some concerned organisations and members of the public in the media and social media the past couple of days, no books were removed from the library and sent to be pulped – only bound journals of which the university has online versions. These are journals that have been removed from the journal section for quite some time, and have not been used for a considerable number of years.
 
The decision to reduce the size of the collection to at least 35%, and to secure remote storage in close proximity of the library in Bloemfontein for some of the collections, was taken after a thorough external review of the library in 2014 as well as a gap review this year.
 
Two aspects were actioned after the review: books which have not been used at all in the past 20 years were moved to a storeroom in the library; journals removed from the journal section which have not been used actively for quite some time and which are not available online or cannot be found elsewhere through any means, will be moved to a remote storage in Bloemfontein and be retrieved as the need arises.
 
The only journals sent for pulping were those readily available online through current subscriptions, journals that the library is not subscribed to but are freely available online, journals that have since become Open Access Journals, magazines that have popular titles and are of no academic value, annual reports of societies and associations, and some abstracts. Thorough and responsible evaluation of these bound journals was done before they were sent for pulping.
 
The move of the books to a store room in the library and the removal of the bound journals will provide space to implement recommendations by the task team assigned by the Rector and Vice-Chancellor, Prof Francis Petersen, to investigate repurposing the library into a world-class, state-of-the-art library where physical and virtual space is created to support multi-purpose learning spaces for students, collaborative and group learning, and providing space for more innovation in the library through technology, thus enhancing the overall student and user experience.

Released by:
Lacea Loader (Director: Communication and Brand Management)
Telephone: +27 51 401 2584 | +27 83 645 2454
Email: news@ufs.ac.za | loaderl@ufs.ac.za
Fax: +27 51 444 6393

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