| Texto completo | |
| Autor(es): |
Diniz, Vinicius
;
Resendiz-Diaz, Brenda
;
Crick, Colin R.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ACS OMEGA; v. 10, n. 42, p. 14-pg., 2025-10-17. |
| Resumo | |
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. (AU) | |
| Processo FAPESP: | 22/11350-1 - Investigação da viabilidade de nanomateriais fotoativos e com propriedades antimicrobianas para purificação de água |
| Beneficiário: | Vinicíus Diniz |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Doutorado |
| Processo FAPESP: | 21/08123-0 - Materiais híbridos avançados para reuso potável direto como alternativas ao carvão ativado para a remoção de contaminantes emergentes |
| Beneficiário: | Vinicíus Diniz |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |