Towards improving the capacity of UiO-66 for antibiotic elimination from contaminated water,Faraday Discussions

当前位置： X-MOL 学术 › Faraday Discuss. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Towards improving the capacity of UiO-66 for antibiotic elimination from contaminated water
Faraday Discussions ( IF 3.3 ) Pub Date : 2021-04-10 , DOI: 10.1039/d1fd00019e
Sara Rojas _{1,

2} , Ana Torres ₁ , Víctor Dato ₁ , Fabrice Salles ₃ , David Ávila ₄ , Jessica García-González ₅ , Patricia Horcajada ₁

Affiliation

Antibiotics are found in natural waters, raising concern about their human and environmental toxicity and the wide occurrence of antibiotic resistant bacteria. The antibiotic resistance crisis is attributed to the overuse and misuse of these medications. Particularly, sulfamethazine (SMT), an antibiotic commonly used in pigs and cattle for the treatment of bacterial diseases, has been detected in the natural environment (soil and water). Among all the technologies developed to combat the deteriorating water quality and control antimicrobial resistance, heterogeneous photocatalysis should be highlighted for the degradation of refractory organic compounds. Here, we described the SMT adsorption and photodegradation capacity of a highly porous and robust zirconium-based MOF UiO-66 under realistic conditions, and its potential recyclability. Further, its SMT removal capacity was improved by functionalizing the MOF porosity (28.5% of SMT adsorption in 24 h for nanoUiO-66-NH₂), and nanosizing the MOF (100% SMT photodegradation in only 4 h for nanoUiO-66). Finally, the safety of the formed by-product during SMT photodegradation was confirmed, reinforcing the potential of the application of UiO-66 in water remediation.

中文翻译：

提高 UiO-66 从污染水中消除抗生素的能力

抗生素存在于天然水中，引发了人们对其人类和环境毒性以及抗生素耐药细菌广泛存在的担忧。抗生素耐药性危机归因于这些药物的过度使用和滥用。特别是在自然环境（土壤和水）中检测到磺胺二甲嘧啶（SMT），一种常用于猪和牛治疗细菌性疾病的抗生素。在为对抗恶化的水质和控制抗菌素耐药性而开发的所有技术中，应突出多相光催化降解难降解有机化合物。在这里，我们描述了在现实条件下高度多孔和坚固的锆基 MOF UiO-66 的 SMT 吸附和光降解能力，及其潜在的可回收性。更远，₂），以及纳米化 MOF（对于 nanoUiO-66，仅 4 小时即可实现 100% SMT 光降解）。最后，证实了 SMT 光降解过程中形成的副产物的安全性，增强了 UiO-66 在水修复中的应用潜力。

更新日期：2021-04-10

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11