As part of the international SURRI project, researchers applied the Reactive Laser Ablation in Liquids (RLAL) method, which allowed them to extract valuable elements from mine effluents in Zlaté Hory and convert them into multicomponent nanoparticles with unique properties.

Technology that gives waste a second life

The foundation of success lies in combining a laser beam and a liquid mineral-rich medium. The RLAL method allows precise control of chemical reactions without the need for hazardous reagents or extreme conditions.

By using short laser pulses, we generate the ablation of a solid target immersed in the mine effluents; the ablation generates a plasma that initiates the formation of nanoparticles by extracting material from the solid target while simultaneously incorporating elements from the mine effluent. The produced particles, then can be widely applied – from catalysis to environmental purification," explains the study's lead author Raffael Torres.

What the research achieved:

• Recovery of critical metal elements from mine wastewater
• Production of catalytically active and magnetophoretic nanoparticles
• An environmentally friendly process aligned with circular economy principles

Nanotechnology in the service of sustainability

RLAL is more than just a sophisticated lab trick. It’s a technology that opens the door to efficient recycling of raw materials from industrial and natural sources. The research contributes not only to the development of advanced materials but also to responsible resource management.

"What we consider waste today may be tomorrow's raw material. That’s the essence of the circular economy," adds Torres.

CXI: Science that makes an impact

This research was conducted at the Institute for Nanomaterials, Advanced Technologies and Innovation (CXI) of the Technical University of Liberec. CXI has long focused on transferring science into practice and supporting research projects with real-world impact – not only for industry, but also for environmental and societal well-being.