Scientists from Teesside University, in collaboration with the University of Edinburgh, have developed a revolutionary material called CalyChar, which could transform sustainable construction. Created as an enhanced version of hydrochar—a charcoal-like substance made from organic or bio waste—CalyChar has the potential to capture significant amounts of CO2 while being cost-effective. At just $125 per ton of CO2, it offers a more affordable alternative to current carbon capture technologies.

CalyChar’s unique ability to store carbon dioxide as stable carbonates for years makes it a promising solution for long-term CO2 sequestration. Researchers are now exploring its use in bio-concrete and bio-cement, materials that could play a key role in reducing emissions in the construction industry. These innovations aim to lock away carbon dioxide in construction materials, helping reduce the environmental footprint of building projects.

The material is expected to have a major impact on global decarbonization efforts. By 2030, it could help remove between 3.5 and 5 million tons of CO2 annually in the UK, and up to 30 million tons worldwide. As part of their research, the team is also evaluating the environmental impact of CalyChar on soils and wetlands through a partnership with Tees Rivers Trust, which works to protect and enhance the River Tees.

With expert input from the UK Biochar Research Centre, the team is focused on optimizing CalyChar’s carbon capture capabilities and accelerating its deployment in sectors like sustainable construction and soil enrichment. Dr. Humbul Suleman, the project lead at Teesside University, commented, “By enhancing hydrochar’s CO2 capture ability, we can offer a more cost-effective, long-lasting solution to reducing carbon dioxide levels.”

This innovative project was funded through the Pathfinders III competition, part of the UK Research and Innovation’s (UKRI) efforts to drive progress toward net-zero emissions and advance carbon removal technologies in the construction industry.