Magnetic graphene coated inorganic-organic hybrid nanocomposite for enhanced preconcentration of selected pesticides in tomato and grape

Nodeh, Hamid Rashidi; Sereshti, Hassan; Gaikani, Hamid; Kamboh, Muhammad Afzal; Afsharsaveh, Zahra

doi:10.1016/j.chroma.2017.06.032

Cited by 51 publications

(8 citation statements)

References 45 publications

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“…The development of simple, rapid, selective and sensitive methodologies that allow their determination at very low levels still constitutes a special challenge for the scientific community [37][38][39][40][41][42][43][44]. In this sense, nanomaterials have produced a great impact on the improvement and development of Analytical Chemistry because of their properties [45][46][47][48][49][50][51]. In some cases, such nanomaterials are widely applied in electrochemistry but also used as sorbents in sample preparation, or as chromatographic stationary phases [52,53].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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Magnetic dispersive micro solid-phase extraction and gas chromatography determination of organophosphorus pesticides in strawberries

Fernandes

Freitas

Pacheco

et al. 2018

Journal of Chromatography A

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Section: Accepted Manuscriptmentioning

confidence: 99%

“…Among them, there can be found pyrethroids [46,60], carbamates [61], organochlorine pesticides (OCPs) [62,63] or OPPs [45, 64,65], phenylurea [53] and sulfonylurea herbicides [66] although nanomaterials have also been suitability applied for pesticide multiresidues extraction [48,49,51].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Magnetic dispersive micro solid-phase extraction and gas chromatography determination of organophosphorus pesticides in strawberries

Fernandes

Freitas

Pacheco

et al. 2018

Journal of Chromatography A

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“…As shown in Figure 1, graphene oxide was simply and solely prepared from graphite by a harsh oxidation process 28 briefly as follows; graphite powder (1.5 g) was placed into 20 ml distilled water and 50 ml H 2 SO 4 (97%) and was stirred for 2 h. Then, the synthesis process was carried out in an ice bath followed by slow addition of KMnO 4 (3 g) into the acidic solution and another 24 h of stirring. The mixture was poured into the 400 g ice and the system was then cooled down and 30% H 2 O 2 (9 ml) was added under 3 h vigorous stirring.…”

Section: Methodsmentioning

confidence: 99%

Removal of ammonia from industrial wastewater using novel heterogeneous nanocomposite of nickel, strontium, and zirconia oxides decorated graphene oxide

Mousavi

Bidhendi

Mehrdadi

2020

Env Prog and Sustain Energy

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In this study, a novel adsorbent was developed based on nickel oxide, strontium oxide and zirconia oxide and was anchored onto graphene oxide to produce a heterogeneous nanocomposite (NiSr-ZrO 2 /GO) for efficient removal of ammonia from industrial wastewater. The proposed nanocomposite was characterized using FTIR, XRD, SEM, EDX, BET, and TEM techniques. Effects of changing important parameters on the ammonia adsorption such as pH, adsorbent dosage, contact time, and initial concentration of ammonia were investigated. Different models were conducted to study the kinetics and isotherms equilibrium data of the adsorption process. The results revealed that the adsorption kinetics was well-fitted to the second-order model. The equilibrium data were well fitted on Langmuir isotherm model with a maximum monolayer adsorption capacity of 181.81 mg g −1 (R 2 = 0.997). Adding metal-containing species to graphene oxide can favorably interact with ammonia.

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“…These 3D graphene structures include sponges, aerogels and foams, and provided this 3D structure is maintained and does not collapse, these materials are more easily recovered from the solution phase. Moreover, the high surface areas and porous structures give rise to the efficient transport and trapping of the pollutants, while the 3D structures can be further functionalized using covalent and non-covalent methodologies [87,88]. The various methods used in the formation of porous 3D graphene structures can be found in a recent review by Lin et al [30], highlighting the increasing interest in 3D graphene-based materials.…”

Section: Recovery Of the Go Adsorbentmentioning

confidence: 99%

Graphene-Based Materials Immobilized within Chitosan: Applications as Adsorbents for the Removal of Aquatic Pollutants

et al. 2021

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Graphene and its derivatives, especially graphene oxide (GO), are attracting considerable interest in the fabrication of new adsorbents that have the potential to remove various pollutants that have escaped into the aquatic environment. Herein, the development of GO/chitosan (GO/CS) composites as adsorbent materials is described and reviewed. This combination is interesting as the addition of graphene to chitosan enhances its mechanical properties, while the chitosan hydrogel serves as an immobilization matrix for graphene. Following a brief description of both graphene and chitosan as independent adsorbent materials, the emerging GO/CS composites are introduced. The additional materials that have been added to the GO/CS composites, including magnetic iron oxides, chelating agents, cyclodextrins, additional adsorbents and polymeric blends, are then described and discussed. The performance of these materials in the removal of heavy metal ions, dyes and other organic molecules are discussed followed by the introduction of strategies employed in the regeneration of the GO/CS adsorbents. It is clear that, while some challenges exist, including cost, regeneration and selectivity in the adsorption process, the GO/CS composites are emerging as promising adsorbent materials.

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Magnetic graphene coated inorganic-organic hybrid nanocomposite for enhanced preconcentration of selected pesticides in tomato and grape

Cited by 51 publications

References 45 publications

Magnetic dispersive micro solid-phase extraction and gas chromatography determination of organophosphorus pesticides in strawberries

Magnetic dispersive micro solid-phase extraction and gas chromatography determination of organophosphorus pesticides in strawberries

Removal of ammonia from industrial wastewater using novel heterogeneous nanocomposite of nickel, strontium, and zirconia oxides decorated graphene oxide

Graphene-Based Materials Immobilized within Chitosan: Applications as Adsorbents for the Removal of Aquatic Pollutants

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