Rehan Mohamed, Emam El-Amir M, Emam Hossam E
Department of Pretreatment and Finishing of Cellulosic Based Textiles, Textile Research and Technology Institute, National Research Centre, 33 EL Buhouth St., 12622, Dokki, Giza, Egypt.
Faculty of Applied Arts, Textile Printing, Dyeing and Finishing Department, Helwan University, 11795, Cairo, Egypt.
Sci Rep. 2025 Apr 1;15(1):11050. doi: 10.1038/s41598-025-93188-x.
Pathogenic microorganisms and dyes are the main sources of water pollution. These pollutants are extremely hazardous and may harm aquatic life and human health. As a result, removing these pollutants is critical in assessing contamination risks and mitigating potential health hazards. To effectively remove pathogenic microorganisms and dyes from wastewater, an efficient multi-functional material was designed based on AgI, Ag NPs, and Ag NPs@AgI immobilized on bamboo fabrics as a support substrate. The water disinfection aptitude of the modified bamboo fabrics was evaluated against different microorganisms. The results showed that the Ag NPs@AgI@bamboo showed excellent antibacterial activity against S. aureus (88%) and E. coli (90%) as well as perfect antifungal activity against C. albicans (82%). Methylene blue (MB) was used as a pollutant model to test the catalytic and photocatalytic activity of modified bamboo fabrics. The results show that Ag NPs@AgI@bamboo was highly efficient in removing the MB dye via reduction (90%) after 60 min or photodegradation (93%) after 6 h of UV light irradiation. The pseudo-first-order kinetic study shows that Ag NPs@AgI@bamboo possessed outstanding catalytic reduction and photocatalytic degradation activities toward MB.
致病微生物和染料是水污染的主要来源。这些污染物极具危害性，可能会损害水生生物和人类健康。因此，去除这些污染物对于评估污染风险和减轻潜在健康危害至关重要。为了有效去除废水中的致病微生物和染料，基于固定在竹织物作为支撑基质上的碘化银、银纳米颗粒和碘化银包裹银纳米颗粒设计了一种高效多功能材料。评估了改性竹织物对不同微生物的水消毒能力。结果表明，碘化银包裹银纳米颗粒@竹织物对金黄色葡萄球菌（88%）和大肠杆菌（90%）表现出优异的抗菌活性，对白色念珠菌（82%）表现出完美的抗真菌活性。以亚甲基蓝（MB）作为污染物模型测试改性竹织物的催化和光催化活性。结果表明，碘化银包裹银纳米颗粒@竹织物在60分钟后通过还原作用高效去除MB染料（90%），或在紫外光照射6小时后通过光降解作用（93%）。准一级动力学研究表明，碘化银包裹银纳米颗粒@竹织物对MB具有出色的催化还原和光催化降解活性。
