Gold nanozymes for efficient degradation of organic dye pollutants: outperforming natural enzymes

2025/01/01 by Giulia Mirra, Lorenzo Cursi, Marina Veronesi +2 · 1 voice
Materials Science · #Advanced Nanomaterials in Catalysis #Nanocluster Synthesis and Applications #Nanoparticles: synthesis and applications

paper · pdf · doi:10.1039/d4nr05137h

openalex publication_date 2025/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03

Abstract

peroxidase-like activity, unlike the natural enzyme (horseradish peroxidase - HRP), which displayed weak degradative capabilities. On the other hand, Pd and PtNZs experience the internal competitive catalase-like reaction, strongly limiting their dye degradation performances. The mechanism underlying AuNZ's ability to degrade the synthetic dyes was investigated, revealing the preferential reactivity with the aromatic structures of the molecules. We also developed a proof-of-concept AuNZ-based dye-degrading filter system, showing excellent dye removal capability and good recyclability, even in real environmental samples.

Citations

• Synthetic organic dyes as contaminants of the aquatic environment and their implications for ecosystems: A review

Discussions

• Nanoscale's back cover article highlights that gold nanozymes outperform other nanozymes and natural peroxidase in the degradation of toxic dyes, showcasing their potential for environmental remediati [bsky, 0 points, 0 comments]