Adsorption of sodium diclofenac in aqueous medium using graphene oxide nanosheets

Guerra, Ana Carolina Sestito; Andrade, Murilo Barbosa de; Santos, Tássia Rhuna Tonial dos

doi:10.1080/09593330.2019.1707882

Cited by 39 publications

(13 citation statements)

References 68 publications

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“…The GO adsorption rate is related to the degree of oxidation so that highly oxidized GO displayed a superior adsorption rate than the GO with a lower oxidation degree (Thangavel and Venugopal, 2014). In recent years, many research investigations have been conducted for the removal of drugs using GO, for example, adsorption of trimethoprim and isoniazid antibiotics (Çalış kan Salihi et al, 2020), norfloxacin (Moreira et al, 2020), naproxen (Ci gero glu et al, 2020), cephalexin (Wernke et al, 2020), sodium diclofenac (Guerra et al, 2019), and fluoroquinolones (ciprofloxacin, norfloxacin, and ofloxacin) (Yadav et al, 2018) from aqueous solutions.…”

Section: Adsorption Of Drugs Onto Graphene-based Materialsmentioning

confidence: 99%

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

et al. 2021

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Adsorption Of Drugs Onto Graphene-based Materialsmentioning

confidence: 99%

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

et al. 2021

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“…[ 24 ] Therefore, it is confirmed that magnetic Fe 3 O 4 nanoparticles are chemically deposited onto GO sheets through carboxylic groups. [ 28 ]…”

Section: Resultsmentioning

confidence: 99%

“…[24] Therefore, it is confirmed that magnetic Fe 3 O 4 nanoparticles are chemically deposited onto GO sheets through carboxylic groups. [28] Figure 3 shows the XRD patterns of GO, GO-Fe 3 O 4 , and Fe 3 O 4 . The diffraction peak at 2θ = 11 in GO corresponds to the characteristic diffraction peak of GO nanosheets.…”

Section: Characterization Of Adsorbentmentioning

confidence: 99%

Synthesizing magnetic graphene oxide nanomaterial (GO‐Fe₃O₄) and kinetic modelling of methylene blue adsorption from water

et al. 2022

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Methylene blue (MB) is a frequently used dye in several industries that is detrimental both to human health and aquatic ecosystems. Graphene oxide (GO) has the application potential for dye removal from wastewater due to its high specific surface area; however, it suffers from a labourious separation step. In this work, magnetic GO nanostructure was prepared by co‐precipitation of ferrous salts in presence of GO to achieve a GO‐Fe3O4 hybrid. By choosing the proper ratio of GO to Fe3O4, the specific surface area of 280.26 m2/g could provide excellent adsorption capacity; the superparamagnetic property of the prepared adsorbent also ensures its magnetic separation from aqueous solutions. The results of adsorption experiments revealed that, within 2 min, 93%, 80%, and 50% of MB were separated from the solutions of 100, 120, 150 mg/L dye concentration, respectively. The adsorption of MB followed a pseudo‐first‐order kinetic model, and the equilibrium isotherm study indicated that experimental data were well fitted to the Langmuir isotherm model. The impact of pH and adsorbent dosage were investigated, and the results showed that the amount of adsorbed MB onto the GO‐Fe3O4 was sharply increased to 231.6 and 246 mg/g by increasing pH and adsorbent dosage up to 6 and 15 g, respectively. Thermodynamic parameters indicated that the adsorption process of MB is endothermic and spontaneous. In addition, GO‐Fe3O4 revealed a good regeneration ability by using ethanol as the desorbent. These results suggest that the proposed adsorbent has promising potential in removing dye from water resources.

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“…In fact, diclofenac removal through adsorption has been reported in several studies, using activated carbon [41,42], graphene oxide nanosheets [43], composite low-cost material [44] and biphasic apatitecarbon biochar-type materials prepared from pyrolysed cod fish bones [45]. Further combined strategies are needed to effectively remove pharmaceuticals such as diclofenac from wastewater.…”

Section: Fate Of Diclofenacmentioning

confidence: 99%

Biological removal processes in aerobic granular sludge exposed to diclofenac

Bessa

Moreira

Loosdrecht

et al. 2021

Environmental Technology

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Diclofenac is a worldwide consumed drug included in the watch list of substances to be monitored according to the European Union Water Framework Directive (Directive 2013/39/EU). Aerobic granular sludge sequencing batch reactors (AGS-SBR) are increasingly used for wastewater treatment but there is scant information on the fate and effect of micropollutants to nutrient removal processes. An AGS-SBR fed with synthetic wastewater containing diclofenac was bioaugmented with a diclofenac degrading bacterial strain and performance and microbial community dynamics was analysed. Chemical oxygen demand, phosphate and ammonia removal were not affected by the micropollutant at 0.03 mM (9.54 mg L -1 ). The AGS was able to retain the degrading strain, which was detected in the sludge throughout after augmentation. Nevertheless, besides some adsorption to the biomass, diclofenac was not degraded by the augmented sludge given the short operating cycles and even if batch degradation assays confirmed that the bioaugmented AGS was able to biodegrade the compound. The exposure to the pharmaceutical affected the microbial community of the sludge, separating the two first phases of reactor operation (acclimatization and granulation) from subsequent phases. The AGS was able to keep the bioaugmented strain and to maintain the main functions of nutrient removal even through the long exposure to the pharmaceutical, but combined strategies are needed to reduce the spread of micropollutants in the environment.

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Adsorption of sodium diclofenac in aqueous medium using graphene oxide nanosheets

Cited by 39 publications

References 68 publications

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Synthesizing magnetic graphene oxide nanomaterial (GO‐Fe₃O₄) and kinetic modelling of methylene blue adsorption from water

Biological removal processes in aerobic granular sludge exposed to diclofenac

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Adsorption of sodium diclofenac in aqueous medium using graphene oxide nanosheets

Cited by 39 publications

References 68 publications

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Synthesizing magnetic graphene oxide nanomaterial (GO‐Fe3O4) and kinetic modelling of methylene blue adsorption from water

Biological removal processes in aerobic granular sludge exposed to diclofenac

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Synthesizing magnetic graphene oxide nanomaterial (GO‐Fe₃O₄) and kinetic modelling of methylene blue adsorption from water