Next Article in Journal
Synthesis and Photoelectrocatalytic Applications of TiO2/ZnO/Diatomite Composites
Previous Article in Journal
Polyacrylonitrile Derived Robust and Flexible Poly(ionic liquid)s Nanofiber Membrane as Catalyst Supporter
Previous Article in Special Issue
Heterogeneous Gold Nanoparticle-Based Catalysts for the Synthesis of Click-Derived Triazoles via the Azide-Alkyne Cycloaddition Reaction

Hydrogen Production and Degradation of Ciprofloxacin by [email protected]2-MoS2 Photocatalysts

Arecibo Observatory, Cupey Campus, Universidad Ana G. Méndez, San Juan, PR 00926, USA
Department of Chemistry, Río Piedras Campus, University of Puerto Rico, San Juan, PR 00925, USA
Nanomaterials Research Group, Division of Natural Sciences and Technology, Gurabo Campus, Universidad Ana G. Méndez, Gurabo, PR 00778, USA
Materials Characterization Center Inc., Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, USA
International Federation for the Promotion of Mechanism and Machine Science (IFToMM), Romanian Association for Theory of Machines and Mechanisms (ARoTMM), Bucharest Polytechnic University, 060042 Bucharest, Romania
Department of Applied Physics, Instituto de Ciencias de Materiales Nicolás Cabrera, Autonomous University of Madrid, 28041 Madrid, Spain
Authors to whom correspondence should be addressed.
Academic Editor: Sónia Carabineiro
Catalysts 2022, 12(3), 267;
Received: 31 December 2021 / Revised: 19 February 2022 / Accepted: 25 February 2022 / Published: 27 February 2022
(This article belongs to the Special Issue Gold, Silver and Copper Catalysis)
The photocatalytic activity of silver-based catalysts containing different amounts of molybdenum disulfide (MoS2; 5, 10 and 20 wt.%) was evaluated by the degradation of the antibiotic ciprofloxacin and the production of hydrogen via water splitting. All the silver (Ag)-based catalysts degraded more than 70% of the antibiotic in 60 min. The catalyst that exhibited the best result was 5%[email protected]2-P25-5%MoS2, with ca. 91% of degradation. The control experiments and stability tests showed that photocatalysis was the degradation pathway and the selected silver-based catalysts were stable after seven cycles, with less than 2% loss of efficiency per cycle and less than 7% after seven cycles. The catalyst with the highest hydrogen production was 5%[email protected]2 NWs-20%MoS2, 1792 μmol/hg, at a wavelength of 400 nm. This amount was ca. 32 times greater than that obtained by the pristine titanium oxide nanowires catalyst. The enhancement was attributed to the high surface area of the catalysts, along with the synergism created by the silver nanoparticles and MoS2. All the catalysts were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman spectroscopy, field-emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), Brunauer–Emmett–Teller (BET) surface area analysis and energy dispersive X-ray spectroscopy (EDS). View Full-Text
Keywords: photocatalysis; Ag NPs; MoS2; ciprofloxacin; hydrogen production photocatalysis; Ag NPs; MoS2; ciprofloxacin; hydrogen production
Show Figures

Figure 1

MDPI and ACS Style

Machín, A.; Fontánez, K.; García, D.; Sampayo, P.; Colón-Cruz, C.; Claudio-Serrano, G.J.; Soto-Vázquez, L.; Resto, E.; Petrescu, F.I.; Morant, C.; Márquez, F. Hydrogen Production and Degradation of Ciprofloxacin by [email protected]2-MoS2 Photocatalysts. Catalysts 2022, 12, 267.

AMA Style

Machín A, Fontánez K, García D, Sampayo P, Colón-Cruz C, Claudio-Serrano GJ, Soto-Vázquez L, Resto E, Petrescu FI, Morant C, Márquez F. Hydrogen Production and Degradation of Ciprofloxacin by [email protected]2-MoS2 Photocatalysts. Catalysts. 2022; 12(3):267.

Chicago/Turabian Style

Machín, Abniel, Kenneth Fontánez, Diego García, Paola Sampayo, Carla Colón-Cruz, Gerardo J. Claudio-Serrano, Loraine Soto-Vázquez, Edgard Resto, Florian I. Petrescu, Carmen Morant, and Francisco Márquez. 2022. "Hydrogen Production and Degradation of Ciprofloxacin by [email protected]2-MoS2 Photocatalysts" Catalysts 12, no. 3: 267.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop