Academic Journal
Photodegradation of Ciprofloxacin-Zinc Complexes Produced at the Interface of ZnO and Cu-Doped ZnO Crystals
| العنوان: | Photodegradation of Ciprofloxacin-Zinc Complexes Produced at the Interface of ZnO and Cu-Doped ZnO Crystals |
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| المؤلفون: | Aryane Tofanello, Elisângela Belleti, Adrianne M. M. Brito, Iseli L. Nantes-Cardoso |
| المصدر: | Materials Research, Vol 24, Iss 6 (2021) |
| بيانات النشر: | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol), 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: | Ciprofloxacin, emergent pollutant, photodegradation, ZnO, Cu-ZnO nanoetching, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: | Abstract Ciprofloxacin hydrochloride (CIPRO) is considered an emerging pollutant in aquatic environments with the capacity to disseminate antibiotic resistance. Considering the pro-oxidant potential of ZnO and Cu-doped ZnO (Cu-ZnO) wurtzite crystals, the potential Ciprofloxacin photodegradation by these materials was investigated. CIPRO titration with ZnO and Cu-ZnO promoted the formation of zinc complexes and ~4% antibiotic adsorption. The carboxylic groups of CIPRO can complex Zn2+ by promoting the nanoetching of ZnO and Cu-ZnO crystallite surfaces. The alkaline interfaces provided by ZnO create a microenvironment favorable for Zn2+ chelation by CIPRO carboxylates. The photodegradation degree was similar for CIPRO and CIPRO-Zn under UV light, as revealed by UV-visible spectroscopy and FTIR. Therefore, the ZnO and Cu-ZnO crystals contributed to the formation of CIPRO-Zn rather than the photo-oxidative degradation of the antibiotic. Considering that CIPRO-Zn chelates disfavor bacterial selection for resistance, the treatment of CIPRO-contaminated effluents with ZnO and Cu-ZnO can facilitate desirable metal chelation without impairing photodegradation. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1516-1439 1980-5373 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000600201&tlng=en; https://doaj.org/toc/1516-1439 |
| DOI: | 10.1590/1980-5373-mr-2021-0198 |
| URL الوصول: | https://doaj.org/article/2843ff997c6c4f1996fac7766beb99be |
| رقم الانضمام: | edsdoj.2843ff997c6c4f1996fac7766beb99be |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15161439 19805373 |
|---|---|
| DOI: | 10.1590/1980-5373-mr-2021-0198 |