Modified Single-Walled Carbon Nanotube Membranes for the Elimination of Antibiotics from Water

Gaálová, Jana; Bourassi, Mahdi; Soukup, Karel; Trávníčková, Tereza; Bouša, Daniel; Sundararajan, Swati; Losada, Olga; Kasher, Roni; Friess, Karel; Sofer, Zdeněk

doi:10.3390/membranes11090720

Cited by 12 publications

(9 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even though TET permeated through the nonporous membrane, it remained the most adsorbed antibiotic. Similar TET behaviors were noticed using highly porous modified carbon nanotube membranes [35]. We notice that TET dominates the adsorption on PDMS surface since the start of the experiment.…”

Section: Energy-dispersive X-ray Spectroscopysupporting

confidence: 83%

Glycidyl and Methyl Methacrylate UV-Grafted PDMS Membrane Modification toward Tramadol Membrane Selectivity

et al. 2021

Self Cite

View full text Add to dashboard Cite

Pharmaceutical wastewater pollution has reached an alarming stage, as many studies have reported. Membrane separation has shown great performance in wastewater treatment, but there are some drawbacks and undesired byproducts of this process. Selective membranes could be used for pollutant investigation sensors or even for pollutant recovery. The polydimethylsiloxane (PDMS) membrane was first tested on separated and mixed antibiotic (ATB) water solutions containing sulfamethoxazole (SM), trimethoprim (TMP), and tetracycline (TET). Then, the bare and ultra-violet grafted (UV-grafted) PDMS membranes (MMA-DMAEMA 10, GMA-DMAEMA 5, and GMA-DMAEMA 10) were tested in tramadol (TRA) separation, where the diffusion coefficient was evaluated. Finally, the membranes were tested in pertraction with a mixture of SM, TMP, TET, and TRA. The membranes were characterized using the following methods: contact angle measurement, FTIR, SEM/EDX, and surface and pore analysis. The main findings were that TET was co-eluted during mixed ATB pertraction, and GMA-DMAEMA 5 was found to selectively permeate TRA over the present ATBs.

show abstract

Section: Energy-dispersive X-ray Spectroscopysupporting

confidence: 83%

Glycidyl and Methyl Methacrylate UV-Grafted PDMS Membrane Modification toward Tramadol Membrane Selectivity

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…As a result, the adsorption increases when the adsorbent dosage increases, and it was established that this phenomenon presents a spontaneous nature. Shaban et al [73] report Meropenem antibiotics' adsorption and other similar compounds using MWCNTs. These authors evaluate the viability of removing these contaminants from water under laboratory conditions.…”

Section: Cnts-assisted Removal Of Antibioticsmentioning

confidence: 99%

Carbon-based materials: adsorptive removal of antibiotics from water

Cruz-Cruz¹,

Rivas-Sánchez²,

Gallareta-Olivares³

et al. 2023

Water Emerg Contam Nanoplastics

View full text Add to dashboard Cite

The contamination generated by multiple antibiotics represents a general concern given its impact at the environmental level, mainly affecting the planet’s soil and water and impacting the development of numerous species. Additionally, a new problem has been triggered in terms of the development of antibiotic-resistance genes in various pathogenic microorganisms generating concern for the health sector in terms of the efficiency of antibiotics in the future. These actual problems and concerns demand efforts and actions to remove or eliminate these contaminants. Multiple alternatives to reduce the impact of antibiotics in water have been carried out, such as advanced oxidation, reverse osmosis, and membrane filtration. However, adsorption techniques have presented more favorable and viable results in which carbon-based materials are an efficient tool to remediate the environment that can take advantage of other alternatives due to their characteristics. This review presents different carbon-based absorptive materials such as biochar, carbon nanotubes, activated carbon, and graphene to remove these contaminants, given their characteristics and favorable results. However, process integration, production, and modification continue to be challenging and require more research and experimentation.

show abstract

“…Nowadays, nanostructures involving nanofibers, nanorods, nanotubes, and nanowires have a great application potential due to their unique properties (e.g., nanosize effect and interface effect, short transport lengths, or directional transmission) [ 8 , 9 ]. However, polymeric electrospun membranes reveal distinctive characteristics and superiority [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Platinum Nanoparticles Immobilized on Electrospun Membranes for Catalytic Oxidation of Volatile Organic Compounds

Soukup

Topka²,

Kupčı́k³

et al. 2023

Membranes

Self Cite

View full text Add to dashboard Cite

Structured catalytic membranes with high porosity and a low pressure drop are particularly suitable for industrial processes carried out at high space velocities. One of these processes is the catalytic total oxidation of volatile organic compounds, which is an economically feasible and environmentally friendly way of emission abatement. Noble metal catalysts are typically preferred due to high activity and stability. In this paper, the preparation of a thermally stable polybenzimidazole electrospun membrane, which can be used as a support for a platinum catalyst applicable in the total oxidation of volatile organic compounds, is reported for the first time. In contrast to commercial pelletized catalysts, high porosity of the membrane allowed for easy accessibility of the platinum active sites to the reactants and the catalytic bed exhibited a low pressure drop. We have shown that the preparation conditions can be tuned in order to obtain catalysts with a desired platinum particle size. In the gas-phase oxidation of ethanol, acetone, and toluene, the catalysts with Pt particle sizes 2.1 nm and 26 nm exhibited a lower catalytic activity than that with a Pt particle size of 12 nm. Catalysts with a Pt particle size of 2.1 nm and 12 nm were prepared by equilibrium adsorption, and the higher catalytic activity of the latter catalyst was ascribed to more reactive adsorbed oxygen species on larger Pt nanoparticles. On the other hand, the catalyst with a Pt particle size of 26 nm was prepared by a solvent evaporation method and contained less active polycrystalline platinum. Last but not least, the catalyst containing only 0.08 wt.% of platinum achieved high conversion (90%) of all the model volatile organic compounds at moderate temperatures (lower than 335 °C), which is important for reducing the costs of the abatement technology.

show abstract

Modified Single-Walled Carbon Nanotube Membranes for the Elimination of Antibiotics from Water

Cited by 12 publications

References 59 publications

Glycidyl and Methyl Methacrylate UV-Grafted PDMS Membrane Modification toward Tramadol Membrane Selectivity

Glycidyl and Methyl Methacrylate UV-Grafted PDMS Membrane Modification toward Tramadol Membrane Selectivity

Carbon-based materials: adsorptive removal of antibiotics from water

Platinum Nanoparticles Immobilized on Electrospun Membranes for Catalytic Oxidation of Volatile Organic Compounds

Contact Info

Product

Resources

About