Study of two cork species as natural biosorbents for five selected pesticides in water

Junior, Terencio Rebello de Aguiar; Neto, José Osmar Andrade Guimarães; Şen, Ali; Pereira, Helena

doi:10.1016/j.heliyon.2019.e01189

Cited by 21 publications

(10 citation statements)

References 28 publications

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“…Since it was first described as an adsorbent in 2005, [20] its use in environmental applications for the removal of a variety of organic and inorganic pollutants has gained considerable attention, and a large number of research articles, as well as reviews, covering this approach have been published [17,[21][22][23][24][25][26]. The cork employment in sample preparation for microextraction purposes was firstly reported in…”

Section: Corkmentioning

confidence: 99%

“…Therefore, its formidable characteristics are promising resources with potential application on adsorption technologies [18]. Herewith cork is a natural, cheap, renewable, fully sustainable, and biodegradable raw material with a very relevant advantage over other carbonaceous materials to be explored as a sorbent in many applications [19].Since it was first described as an adsorbent in 2005, [20] its use in environmental applications for the removal of a variety of organic and inorganic pollutants has gained considerable attention, and a large number of research articles, as well as reviews, covering this approach have been published [17,[21][22][23][24][25][26]. The cork employment in sample preparation for microextraction purposes was firstly reported in…”

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Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

et al. 2019

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Green analytical chemistry principles aim to minimize the negative impact of analytical procedures in the environment, which can be considered both at close (to ensure the safety of the analysts) and global (to conserve our natural resources) levels. These principles suggest, among other guidelines, the reduction/minimization of the sample treatment and the use of renewable sources when possible. The first aspect is largely fulfilled by microextraction, which is considered to be among the greenest sample treatment techniques. The second consideration is attainable if natural products are used as raw materials for the preparation of new extraction phases. This strategy is in line with the change in our production system, which is being gradually moved from a linear model (take-make-dispose) to a circular one (including reusing and recycling as key terms). This article reviews the potential of natural products as sorbents in extraction and microextraction techniques from the synergic perspectives of two research groups working on the topic. The article covers the use of unmodified natural materials and the modified ones (although the latter has a less green character) to draw a general picture of the usefulness of the materials.Separations 2020, 7, 2 2 of 22 principle identifies one of the trends of current research in analytical sciences, it is difficult to be applied when complex samples containing the analytes at very low concentrations are processed. In such scenarios, the simplification of the sample treatment and the reduction of the sources applied (reagents, energy) can be a more practical objective, at least currently. Microextraction techniques fulfill the latter criteria [8], and they are considered among the greenest sample treatment techniques [9].Microextraction techniques have evolved in the last decade following some key trends. Among them, the development of new extraction phases can be highlighted, considering the context of this review article. In this evolution, the tenth (use of renewable resources) and eleventh (replace or remove toxic reagents) principles of GAC are especially relevant [7]. In the liquid microextraction context, environmentally friendly solvents [10,11] such as CyreneTM [12] and deep eutectic solvents [13] are clear examples of this progress.The paradigm of our production system, which up to now has been based on a linear "take-make-dispose" model, is progressively changed to a circular model [14] where reusing, repairing, refurbishing, and recycling appear as key terms. The use of surpluses of natural products as raw materials for the preparation of new sorbents is an interesting contribution of analytical chemistry for changing the production model. This review article, which combines the vision of two research groups working in the topic, tries to draw the general picture of the potential of natural products for the synthesis of new sorptive phases in solid phase extraction and solid phase microextraction. The article will cover strategies with different green characterist...

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Section: Corkmentioning

confidence: 99%

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Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

et al. 2019

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“…Adsorption is considered to be the most efficient procedure for the removal of veterinary pharmaceuticals contaminants from aqueous media due to the low cost, design simplicity, and ease of operation. Different biosorbent such as palm bark [28], Aspergillus fumigatus [29], rice straw [30], corncobs [31], grape stalk, chitosan beads [32], and cork bark [33] are a few of the biosorbent materials that have been evaluated for the wastewaters treatment.…”

Section: Introductionmentioning

confidence: 99%

Removal of amprolium from water by roots and seeds ash of Salvadora persica

Ali

Abdelhalim

2020

Journal of Taibah University for Science

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“…In order to remove these pollutants, a number of methods are being used to try to eradicate them from the supply sources. Among the forms of removal, it can be highlighted in the adsorption processes using clays (Cruz‐Guzman, Celis, Carmen‐Hermosin, Kokinen, & Cornejo, 2005; Yeom & Kim, 2017), activated charcoal (Bacaoui et al, 2002; Braun, 2018), biological (Cervantes‐Carrillo, Pérez, & Gómez, 2000; Kieling, 2004; Liu et al, 2019), aluminum (Al)‐, and iron (Fe)‐based metals (Rasões, 2008; Silva, 2009), and bark as biosorbents (Aguiar, Guimarães Neto, Şen, & Pereira, 2018; Şen, Pereira, Olivella, & Villaescusa, 2015), among others.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the efficiency of three different mineral adsorbents in the removal of pollutants in samples from a tropical spring in Northeastern Brazil

Neto

Junior

2020

Water Environment Research

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Human water sources are increasingly threatened around the world due to various sources of pollution such as agriculture and industry. The objective of this study was to evaluate three new adsorbents as pollutant remedies for subsequent application in the Joanes River located in the State of Bahia in Brazil. The specific pollutants were nitrogen, phosphorus (P), aluminum (Al), iron (Fe), cyanobacteria, and saxitoxins. Initially, studies (pH 7 and 22°C) were performed with samples contaminated in the laboratory with phosphorus (P), nitrate ( NO3-), and ammonia (NH3), to select the most efficient adsorbent and to determine the equilibrium time. Pumice bituminous coal was found to have the best efficiencies (≥70%) at 360 min (equilibration time). The experimental data did not fit the Langmuir and Freundlich model. The bituminous coal with pumice stone was then applied to water samples from a designated capture point of the Joanes springs, a river system that is responsible for supplying the city of Salvador and the metropolitan region, located on the northern coast of Bahia. The removal efficiency analyses were performed on a DR6000 UV/VIS SPECTROPHOTOMETER, using the methodology defined in the Standard Methods 2017, after which this adsorbent was subjected to scanning electron microscopy. As a result, removal efficiencies (≥98%) were obtained for all contaminants (nitrogen, phosphorus (P), aluminum (Al), iron (Fe), cyanobacteria, and saxitoxins) as well as a highly heterogeneous layer pointed by SEM images, further demonstrating the adsorbent potential as a efficient alternative in environmental control after additional studies. Practitioner points Pumice bituminous coal has proven to be an excellent adsorbent for a wide range of pollutants such as phosphorus, nitrogen, ammonia, toxins, cyanobacteria, and metals. The adsorbent promoted a high reduction in phosphorus concentrations (3.40 mg/L to 0.01 mg/L), about 98% and 81% for cyanobacteria (12,850 Cel/ml to 2,560 Cel/ml). The adsorbent promoted a high reduction in concentrations of 98% saxitoxins (4.32 µg/L to 0.2 µg/L).

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Study of two cork species as natural biosorbents for five selected pesticides in water

Cited by 21 publications

References 28 publications

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

Removal of amprolium from water by roots and seeds ash of Salvadora persica

Evaluation of the efficiency of three different mineral adsorbents in the removal of pollutants in samples from a tropical spring in Northeastern Brazil

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