The University of Plymouth invites applications for three 3.5-year PhD studentships in the field of ocean biomass catalysis, focusing on enzyme-catalyst hybrids for renewable chemical production from invasive seaweed species. Hosted by the Marine Institute, this project is part of a suite of eight research topics, with three studentships to be allocated based on candidate-project fit. The anticipated start date is October 1, 2026.

Invasive seaweed species such as Sargassum muticum are increasingly impacting UK coastal waters, disrupting marine habitats and threatening biodiversity. However, these fast-growing, nutrient-rich organisms offer a promising renewable feedstock for sustainable chemical and fuel production. The project aims to transform this environmental challenge into an opportunity for ecosystem protection and advancement of the UK’s low-carbon, circular economy.

Current methods for processing seaweed carbohydrates are inefficient, relying on separate enzymatic and chemical steps. This PhD project will pioneer a biomimetic hybrid catalytic platform that integrates the precision of enzymes with the robustness of hierarchically structured heterogeneous catalysts. By mimicking natural compartmentalisation and metabolic pathways, the research will enable efficient, selective conversion of invasive seaweed into renewable platform chemicals and low-emission marine fuels.

The successful candidate will design and synthesise hierarchically porous nanomaterials with spatially controlled active sites, integrating them with tailored enzymes targeting seaweed-derived carbohydrates (notably from Ulva Lactuca). Experimental work will include material synthesis, enzyme immobilisation, and advanced characterisation techniques (XRD, XPS, FT-IR, N₂ porosimetry, TEM, TGA), followed by catalytic testing to evaluate product selectivity, yield, and reusability.

Collaboration with the University of York’s Centre for Novel Agricultural Products (CNAP) will provide expertise in seaweed composition and enzymatic processing, while Professor Wilson at Griffith University will support studies on enzyme-nanomaterial interactions. The student will be based within the Sustainable Chemistry and Catalysis Group at Plymouth, receiving interdisciplinary training in catalysis, enzyme science, materials synthesis, and analytical characterisation. Research visits to York and Griffith University will further enhance bioscience and biocatalysis skills. Additional training will include transferable skills, conference participation, and engagement with UKRI and industry partners developing marine biorefineries.

Eligibility: Applicants should hold at least an upper second-class degree (or equivalent) in Chemistry, Chemical Engineering, Materials Science, or Biotechnology, with a strong interest in catalysis, enzyme science, or materials chemistry. Non-native English speakers must meet the minimum English requirements (IELTS Academic 6.5 overall, minimum 5.5 in each component).

Funding: The studentships cover full Home or International tuition fees and a stipend at the UKRI rate (2026/27 rate to be confirmed; 2025/26 rate is £20,780 per annum) for 3.5 years. The final 6 months of the four-year registration period are self-funded for writing-up. No additional funding is available for NHS Immigration Health Surcharge, visa costs, or flights.

Application Process: Apply online via the provided link, submitting a CV, personal statement, degree certificates/transcripts, contact details for two referees, and proof of English language competency if applicable. The deadline for applications is 12 noon on Monday, February 2, 2026. Shortlisted candidates will be notified after the deadline, with interviews likely in March. For informal enquiries, contact Dr Lee Durndell.