Ti‑based robust MOFs in the combined photocatalytic degradation of emerging organic contaminants
Metadatos
Mostrar el registro completo del ítemAutor
Rojas Macías, SaraEditorial
Nature
Fecha
2022-08-25Referencia bibliográfica
Rojas, S... [et al.]. Ti-based robust MOFs in the combined photocatalytic degradation of emerging organic contaminants. Sci Rep 12, 14513 (2022). [https://doi.org/10.1038/s41598-022-18590-1]
Patrocinador
Regional Madrid 2017-T2/IND-5149; Juan de la Cierva incorporation JC2019-038894-I MCIN/AEI RED2018-102471-T; La Caixa Foundation 100010434 LCF/BQ/PR20/ 11770014; Center for Forestry Research & Experimentation (CIEF); European Commission SEJIGENT/2021/059 PROMETEU/2021/054 PID2019-104228RB-I00 PID2020-118117RB-I00 RTC2019-007254-5Resumen
Photocatalysis process is a promising technology for environmental remediation. In the continuous
search of new heterogeneous photocatalysts, metal–organic frameworks (MOFs) have recently
emerged as a new type of photoactive materials for water remediation. Particularly, titaniumbased
MOFs (Ti-MOFs) are considered one of the most appealing subclass of MOFs due to their
promising optoelectronic and photocatalytic properties, high chemical stability, and unique structural
features. However, considering the limited information of the reported studies, it is a hard task to
determine if real-world water treatment is attainable using Ti-MOF photocatalysts. In this paper,
via a screening with several Ti-MOFs, we originally selected and described the potential of a Ti-MOF
in the photodegradation of a mixture of relevant Emerging Organic Contaminants (EOCs) in real
water. Initially, two challenging drugs (i.e., the β-blocker atenolol (At) and the veterinary antibiotic
sulfamethazine (SMT)) and four water stable and photoactive Ti-MOF structures have been rationally
selected. From this initial screening, the mesoporous Ti-trimesate MIL-100(Ti) was chosen as the
most promising photocatalyst, with higher At or SMT individual photodegradation (100% of At and
SMT photodegradation in 2 and 4 h, respectively). Importantly, the safety of the formed by-products
from the At and SMT photodegradation was confirmed. Finally, the At and SMT photodegradation
capacity of MIL-100(Ti) was confirmed under realistic conditions, by using a mixture of contaminants
in tap drinking water (100% of At and SMT photodegradation in 4 h), proven in addition its potential
recyclability, which reinforces the potential of MIL-100(Ti) in water remediation.