Study of phenobarbital removal from the aqueous solutions employing magnetite-functionalized chitosan

Nunes, Franciane Batista; Bruckmann, Franciele da Silva; Salles, Theodoro da Rosa; Rhoden, Cristiano Rodrigo Bohn

doi:10.1007/s11356-022-23075-9

Cited by 30 publications

(23 citation statements)

References 53 publications

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“…Nanocomposites are multiphase materials formed by a continuous and dispersed phase and have at least one dimension in the nanoscale [ 20 ]. The continuous phase (matrix) consists of a compound of polymeric, ceramic, or metallic origin, while the dispersed phase (reinforcement) is commonly derived from fibrous materials [ 21 , 22 , 23 ]. Nanocomposite materials are synthesized to combine individual properties and reduce limitations, such as physicochemical and thermal instability, expanding the scope of applications [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Photocatalytic Degradation of Pesticides into Nanocomposites: A Review

et al. 2022

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The extensive use of pesticides in agriculture has significantly impacted the environment and human health, as these pollutants are inadequately disposed of into water bodies. In addition, pesticides can cause adverse effects on humans and aquatic animals due to their incomplete removal from the aqueous medium by conventional wastewater treatments. Therefore, processes such as heterogeneous photocatalysis and adsorption by nanocomposites have received special attention in the scientific community due to their unique properties and ability to degrade and remove several organic pollutants, including pesticides. This report reviews the use of nanocomposites in pesticide adsorption and photocatalytic degradation from aqueous solutions. A bibliographic search was performed using the ScienceDirect, American Chemical Society (ACS), and Royal Society of Chemistry (RSC) indexes, using Boolean logic and the following descriptors: “pesticide degradation” AND “photocatalysis” AND “nanocomposites”; “nanocomposites” AND “pesticides” AND “adsorption”. The search was limited to research article documents in the last ten years (from January 2012 to June 2022). The results made it possible to verify that the most dangerous pesticides are not the most commonly degraded/removed from wastewater. At the same time, the potential of the supported nanocatalysts and nanoadsorbents in the decontamination of wastewater-containing pesticides is confirmed once they present reduced bandgap energy, which occurs over a wide range of wavelengths. Moreover, due to the great affinity of the supported nanocatalysts with pesticides, better charge separation, high removal, and degradation values are reported for these organic compounds. Thus, the class of the nanocomposites investigated in this work, magnetic or not, can be characterized as suitable nanomaterials with potential and unique properties useful in heterogeneous photocatalysts and the adsorption of pesticides.

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Section: Introductionmentioning

confidence: 99%

Adsorption and Photocatalytic Degradation of Pesticides into Nanocomposites: A Review

et al. 2022

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“…The continuous phase (substrate) consists of a compound of polymer, ceramic, or metal. On the other hand, the dispersed phase (reinforced) is usually originated from fibrous materials [ 41 , 141 ]. In this view, nanoparticles of metal, chitosan, graphene oxide, and reduced graphene oxide can be applied as reinforcement that disperses upon the substrate to produce materials with elevated mechanical strength and properties, good optics, and large surface area [ 142 , 143 , 144 ].…”

Section: Wastewater Treatmentmentioning

confidence: 99%

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

Alhalili

2023

Molecules

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Nanotechnology (NT) is now firmly established in both the private home and commercial markets. Due to its unique properties, NT has been fully applied within multiple sectors like pharmacy and medicine, as well as industries like chemical, electrical, food manufacturing, and military, besides other economic sectors. With the growing demand for environmental resources from an ever-growing world population, NT application is a very advanced new area in the environmental sector and offers several advantages. A novel template synthesis approach is being used for the promising metal oxide nanostructures preparation. Synthesis of template-assisted nanomaterials promotes a greener and more promising protocol compared to traditional synthesis methods such as sol-gel and hydrothermal synthesis, and endows products with desirable properties and applications. It provides a comprehensive general view of current developments in the areas of drinking water treatment, wastewater treatment, agriculture, and remediation. In the field of wastewater treatment, we focus on the adsorption of heavy metals and persistent substances and the improved photocatalytic decomposition of the most common wastewater pollutants. The drinking water treatment section covers enhanced pathogen disinfection and heavy metal removal, point-of-use treatment, and organic removal applications, including the latest advances in pesticide removal.

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“…;RHODEN., 2021). Em paralelo a isso, as interações químicas presentes no mecanismo de quimissorção são consideradas fortes e são constituídas pela troca ou compartilhamento de elétrons entre as moléculas adsorbato e adsorvente (NUNES et al, 2022). As ligações químicas entre o adsorbato e a superfície do adsorvente podem ser do tipo n-π, cátion-π, interações de hidrogênio, empilhamento das ligações π e interações de Yoshida (BRUCKMANN et al 2022).…”

Section: Adsorçãounclassified

“…Esta metodologia apresenta alta eficácia para remoção destes contaminantes além de fácil operação. O uso de nanopartículas magnéticas nesses processos é de extrema eficácia comparado aos adsorventes convencionais, pois permitem a dispensação das etapas de filtragem/centrifugação além de possibilitar o reuso do adsorvente por vários ciclos de adsorção (NUNES et al 2022).…”

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Estudo De Adsorção De Amoxicilina Utilizando Nanomaterial De Carbono Com Diferentes Proporções De Magnetita Incorporada

KOESTER¹,

BRUCKMANN²,

NUNES³

et al. 2022

Anais Do Simpósio De Ensino, Pesquisa E Extensão (SEPE 2022)

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A contaminação aquática pelo grande uso de antibióticos é um potencial problema ambiental. Um dos maiores poluentes dos recursos hídricos é a amoxicilina (AMX). Este fármaco é um antibiótico de amplo espectro utilizado no tratamento de infeções bacterianas. Entretanto, após o uso terapêutico uma grande quantidade deste farmáco é excretada pelo corpo humano na forma inalterada, contribuindo, desta forma, para a contaminação dos corpos d´água além da possibilidade de dar origem á cepas de bactérias multirresistentes. A remoção desse medicamento pode ser feita através da adsorção, utilizando adsorventes magnéticos, como o oxido de grafeno (GO) com diferentes proporções de magnetita incorporada (GO•Fe3O4). Tendo em vista as excelentes propriedades do GO•Fe3O4 esse trabalho tem como proposta remover a AMX através da metodologia de adsorção em batelada. Promovendo a descontaminação áquatica proveniente do amplo uso de antibioticos e contribuindo para a prevenção do surgimento de cepas multirresistentes. Palavras-chave:bactérias multiressistentes, contaminação aquática, nanocompósitos magnéticos.

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Study of phenobarbital removal from the aqueous solutions employing magnetite-functionalized chitosan

Cited by 30 publications

References 53 publications

Adsorption and Photocatalytic Degradation of Pesticides into Nanocomposites: A Review

Adsorption and Photocatalytic Degradation of Pesticides into Nanocomposites: A Review

Metal Oxides Nanoparticles: General Structural Description, Chemical, Physical, and Biological Synthesis Methods, Role in Pesticides and Heavy Metal Removal through Wastewater Treatment

Estudo De Adsorção De Amoxicilina Utilizando Nanomaterial De Carbono Com Diferentes Proporções De Magnetita Incorporada

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