Synthesize, characterization and application of a novel three-dimensional magnetic graphene oxide decorated with polyester dendrimers for detection of donepezil hydrochloride in pharmaceutical formulation and biological fluid

Fard, Niloufar Torabi; Tadayon, Fariba; Panahi, Homayon Ahmad

doi:10.1016/j.synthmet.2022.117141

Cited by 11 publications

(2 citation statements)

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“…These materials have interconnected pores formed by the disorderly bonding of two-dimensional reduced graphene oxide sheets (Shan et al, 2017). These materials are a solution to the problems mentioned above and have excellent mechanical properties, specific surface areas, and high porosity (Torabi Fard et al, 2022). Based on their structures and properties, these materials have been applied in different contaminant removal methods, such as photocatalysis, advanced Fenton oxidation, capacitive deionization (Jung et al, 2018;Wang et al, 2019;Yang et al, 2020;Yu et al, 2022), and especially adsorption (Bruckmann et al, 2022;Leão et al, 2022;Leão et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

“…This water treatment method is widely used due to its simplicity and high efficiency (Hiew et al, 2019). In the case of three-dimensional graphene materials and their derivatives, relevant and desirable adsorptive capacities have been found for different contaminants (Torabi Fard et al, 2022), such as metals, dyes (Liu and Qiu, 2020;Lin et al, 2021;Sun et al, 2021), organic solvents, oils (Liu and Qiu, 2020;Wong et al, 2022), pesticides (Guo et al, 2021), and drugs. In the case of drugs, different classes have been removed through the adsorption process, using three-dimensional materials based on graphene, decorated or not.…”

Section: Introductionmentioning

confidence: 99%

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Unlocking the paracetamol adsorption mechanism in graphene tridimensional-based materials: an experimental-theoretical approach

de Matos,

Leão,

Vendrame

et al. 2024

Front. Carbon

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The omnipresence of emerging contaminants in the aquatic environment is indisputable. These contaminants include chemical substances not removed in traditional water and sewage treatment processes. To ensure the quality of water and healthy aquatic ecosystems, new treatment technologies and materials are essential to effectively control the presence of these contaminants in the aquatic environment. More than that, it is important to know how molecules interact with these new materials. A low-cost alternative currently available is adsorption. Despite this method being widely studied, describing the interaction mechanisms between the materials and the analytes is not usual, limiting the obtainment of more efficient materials. Thus, the objective of this work was to understand, in a theoretical-experimental way, the forms of interaction in the adsorption of the drug paracetamol, widely used worldwide, in materials based on graphene with different chemical and structural properties. For this, kinetic and isothermal experimental studies were carried out using four materials that contemplated different dimensions, pore sizes, and oxidation degrees. In theoretical studies, density functional theory (DFT) simulations were performed to cover quantum details, revealing how paracetamol interacts with different graphene structures. According to theoretical studies, binding energies, binding distances, and charge transfer between oxidized graphene and paracetamol drug are compatible with physical adsorption, strongly dependent on the type and number of functional groups on the graphene surface. These results agree with the experimental data where the highest adsorptions were observed precisely for materials containing a higher proportion of functional groups and where these groups are more available (more porous), with adsorptive capacities reaching 235.7 mg/g. Our findings contribute to scientific knowledge about using graphene structures as an adsorbent material, providing a solid basis for future studies and developing more efficient and advanced water treatment technologies.

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