ArticleACS omega2025
Metal-Free and Degradable Photocatalyst for Water Decontamination: An Innovative Application for High-Sulfur Content Polymers.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
3 authors.
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Abstract
This study explores high-sulfur content polymers as metal-free photocatalysts for water purification. Photocatalytic activity was strongly influenced by the chemical structure of the cross-linker; polymers with fewer unsaturations showed higher performance, while siloxane groups reduced activity by 81.3% by hindering hydroxyl radical generation. Increased sulfur content further improves photocatalytic activity, underscoring sulfur's role in contaminant degradation. The polymers achieved >80% removal of dyes and emerging contaminants, maintaining effectiveness in tap water, which demonstrates practical applicability. Reusability varied with cross-linker type, with 1,3-diisopropenylbenene (DIB)-based polymers showing lower durability than the 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane-based polymers. Importantly, DIB polymers underwent UV-induced oxidation and mineralization, reducing environmental persistence and minimizing secondary pollution risks. Overall, these high-sulfur polymers represent a promising, environmentally friendly alternative to conventional metal-based photocatalysts for sustainable water purification and treatment.
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Registered trials
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