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25 August 2025 | Story Martinette Brits | Photo Stephen Collett
Prof Elizabeth Erasmus
Prof Elizabeth Erasmus during her inaugural lecture, Molecules of Change: Chemistry for a Better Tomorrow, on 20 August, highlighting how innovative chemistry can turn waste into value and promote sustainable solutions.

With climate change, resource scarcity, and environmental pollution among the most pressing challenges of our time, Prof Elizabeth (Lizette) Erasmus used her inaugural lecture on Wednesday, 20 August to show how chemistry can provide powerful, practical answers. In her lecture, Molecules of Change: Chemistry for a Better Tomorrow, she traced her journey from fundamental research to pioneering innovations that turn waste into value, protect ecosystems, and improve food security.

During her talk, Prof Erasmus – Researcher in the Department of Chemistry – recalled a moment in 2018 that reshaped her career trajectory. While preparing a Sasol research grant on copper oxide nanoparticles, an entrepreneur assisting with the proposal posed a deceptively simple challenge: “So what?” “Although upsetting at first, those two words completely reshaped my outlook,” she explained. “They inspired my journey from purely academic chemistry towards more applied, impactful research – with the mission of not only advancing science, but of also improving society and the environment.”

 

From fundamental science to global solutions

Prof Erasmus began her career in organometallic chemistry, preparing and characterising complex molecules to understand their reactivity and physical properties. Later, her focus shifted to heterogeneous catalysis, where she explored nanomaterials and surface chemistry.

Her research has since evolved towards developing sustainable technologies that address urgent global challenges. One example is agricultural innovation: using green solvents to extract cellulose from wattle tree bark to create biodegradable superabsorbent polymers. “Unlike the polyacrylates in baby diapers, these SAPs degrade into nutrients for soil microbes and plants,” she explained. “By loading them with fertiliser, we develop slow-release, water-retaining materials that improve agricultural sustainability.”

Other projects include producing biochar to restore degraded soils, creating natural growth enhancers such as wood vinegar, and designing an ‘ultimate fertiliser’ that combines these products for long-term soil health. Her group also works on environmental remediation, developing hydrophobic sponges to absorb oil spills, repurposing building waste to clean polluted water, and using innovative chemistry to convert carbon dioxide into valuable products.

“We are even looking at one of the fastest-growing waste streams: e-waste,” Prof Erasmus noted. “With more gold per ton than natural ore, e-waste represents both a challenge and an opportunity. By developing porous absorbent materials, we can selectively capture and reduce gold ions directly to metallic gold – recovering a precious resource from waste.”

She concluded by crediting her team and collaborators: “This, however, is only the tip of the iceberg. The bulk of the work lies beneath the surface, carried out by dedicated students, collaborators, mentors, colleagues, friends, and family. I owe them my deepest gratitude, for they are the ones who truly sustain this journey of transforming chemistry into solutions for a better world.”

 

About Prof Erasmus

Prof Elizabeth (Lizette) Erasmus obtained all her degrees at the University of the Free State: a BSc (2001), BSc Honours in Chemistry (2002), MSc in Chemistry (2003), and a PhD in Chemistry (2005). She has published more than 80 research papers, holds an H-index of 21, and has extensive experience in supervising MSc and PhD students.

After serving as a senior researcher at the CSIR, she returned to academia at the UFS, where her international collaborations in the Netherlands and at UC Davis broadened her focus from organometallic chemistry to heterogeneous catalysis and nanochemistry. Her expertise spans organometallic chemistry, electrochemistry, surface characterisation, and nanomaterials.

News Archive

UFS in partnership with USA ’s Council on Economic Education 
2006-02-01

A visit to the campus of the UFS was part of the recent NCEE workshop.  Standing from the left are Prof Soehendro (Chairperson:  National Education Standardisation Body of Indonesia), Prof Herman van Schalkwyk (Dean:  Faculty of Natural and Agricultural Sciences at the UFS), Prof Elena Reshetnyak (Vice-Dean for International Programs, Kharkiv Polytechnic Institute, Kharkiv, Ukraine) and Mrs Annely Minnaar (local coordinator of the NCEE and professional officer of the UFS Department of Agricultural Economics).  Seated are from left Prof  Sutjipto ( Chairman of the Indonesian Council on Economic Education) and Dr Patty Elder (Vice-President of the NCEE's national programme).
Photo: Stephen Collett


UFS in partnership with USA ’s Council on Economic Education 

A group of 50 teachers in Economics, learning facilitators and lecturers from eight countries attended a ‘train the trainers’ workshop this past week in Bloemfontein.  The workshop forms part of the outreach programme of the National Council on Economic Education (NCEE) in the United States of America’s (USA) effort to improve the quality of the training in Economics of teachers and lecturers across the world. 

The UFS and the Free State Department of Education are the NCEE’s first partners in Africa.  “The initiative started in the Free State because of the connection that existed between the UFS and the NCEE,” said Prof Klopper Oosthuizen, from the UFS Department of Agricultural Economics and initiator of the cooperative agreement with the NCEE.

Three faculties at the UFS are involved in the cooperative agreement namely the Faculty of Natural and Agricultural Sciences, the Faculty of the Humanities and the Faculty of Economic and Management Sciences.

A group of 84 teachers and learning facilitators in the Free State attended the ‘train the teacher’ workshop at the UFS in December 2005 in an effort to improve the quality of Economics classes at schools in the Free State.  The last national workshop will take place in June 2006 in Bloemfontein.  During this workshop a group of 40 teachers and learning facilitators in the Free State will be trained by the NCEE.    

“Because of the success with the programme in the Free State Dr Patty Elder, Vice-President of the NCEE’s national programme, announced during last week’s workshop that the initiative will now be extended to the other provinces in the country,” said Prof Oosthuizen.  According to Prof Oosthuizen discussions around a strategy to get the other provinces on board of the programme also took place between Dr Elder and Prof Herman van Schalkwyk, Dean of the UFS Faculty of Natural and Agricultural Sciences.  Prof van Schalkwyk will take the lead in this regard.  

“The presence of Dr Elder and the executive directors of similar education networks in the Ukraine and Indonesia is an indication of the NCEE’s seriousness with the programme in Africa,” said Prof Oosthuizen.

Prof Oosthuizen explained that South Africa is competing to obtain funds from the NCEE to have a total South African representation in the workshops in the following one-year training period. 

South Africa has a good chance of establishing the network quickly because of the presentation of the last national workshop in Bloemfontein in June 2006.  “We are going to try to have as much South African representation as possible at this workshop,” said Prof Oosthuizen.

Concurrent with the workshop in June 2006, a programme will be developed that will be attended by at least five other provincial education departments and representatives of five other universities.  These representatives will then be able to observe on a first-hand basis how this action learning takes place and how the participating countries plan to establish and expand their networks,” said Prof Oosthuizen.

“The NCEE has been working together with international partners since 1992 to strengthen their Economics teaching systems.  They have already succeeded in increasing literacy in Economics of schools in the USA and more than 20 East Block countries.  More than 1,5 million learners in the East Block countries have already been served by this initiative,” said Prof Oosthuizen.

According to Prof Oosthuizen the focus of the NCEE has since 2004 moved away from the East Block countries to Africa, Asia, Latin America and the Middle East.  The representatives that attended last week’s workshop were from South Africa, Egypt, Jordan, Palestine, Indonesia, Mexico, Paraguay and Uruguay.  Countries such as Egypt, who was also present at last week’s workshop, are eager to start a similar network. 

Media release
Issued by: Lacea Loader
Media Representative
Tel:   (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
31 January 2006

 
 

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