Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Recently, the activation of persulfate PDS by non-metallic photocatalysts under visible light has attracted significant interest in applications in environmental remediation.
Synthesized orange TpTt-COF monomers exhibit exceptional crystallinity, a 2D structure, and notable stability in harsh conditions. The broad visible light absorption around a wavelength of nm. The study addresses high charge recombination in the TpTt-COF, highlighting the crucial role of its electron donor and acceptor for the PMS activation. Comparative analyses against traditional photocatalytic materials, such as the metal-free carbon-based material g-C 3 N 4 and transition metal-containing TiO 2 , demonstrate TpTt-COF's superior performance, generating diverse free radicals.
Investigations into the degradation mechanism and the TpTt-COF's reusability reveal its efficiency and stability. This study introduces an efficient photocatalytic system mediated by PMS and valuable insights into governing mechanisms for organic pollutant degradation in water environments. Over the past decades, water pollution has become increasingly severe due to the expansion of urbanization and industrialization, combined with population growth 1. A substantial portion of this increase is attributed to the significant rise in wastewater containing various organic and inorganic hazards, commonly referred to as recalcitrant pollutants 2 , including antibiotics, dyes, and others.
The widespread use of dyes in various industries related to printing and dyeing has significantly contributed to water pollution due to organic toxicity 3. Representative dyes such as Rhodamine B, Methylene Blue, Methyl Orange, and Congo Red possess challenging abilities such as impacting aquatic ecosystems, affecting crop growth, and being difficult to degrade.
When discharged into the water environments, recalcitrant pollutants can seriously harm aquatic organisms and human health 4. Consequently, the effective removal of organic dyes has become a pressing concern, particularly in developing countries where the demand for dyes is continually growing 5.
