Enhancement of hazardous pesticide uptake, ametryn using an environmentallyfriendly clay-based adsorbent

Shattar, S.F.A.; Zakaria, N.A.; Foo, K.Y.

doi:10.5004/dwt.2017.20805

Cited by 5 publications

(1 citation statement)

References 29 publications

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“…Consist of a multi-expandable layered structure, bentonite owns a net negative surface charge, mainly ascribed to the isomorphous substitution of Al 3+ for Si 4+ , and Mg 2+ for Al 3+ within the tetrahedral and octahedral clay framework. The charge could be compensated by the exchangeable cations (Na + and Ca 2+ ), which are known to be the inter-layer hydrated cations 2 . The unique feature of bentonite is the formation of thixotrophic gels in the aqueous medium to enlarge its volume at 12–15 times of its dry bulk.…”

Section: Introductionmentioning

confidence: 99%

Sodium salt-assisted low temperature activation of bentonite for the adsorptive removal of methylene blue

Shattar

Foo

2022

Sci Rep

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The sodium salt-assisted low temperature activation of bentonite (BB) was attempted. The unique features of the raw bentonite and BB were characterized with respect to the morphological, functional, and textural analysis. The adsorptive behaviour was evaluated by adopting methylene blue (MB) as the model pollutant via batch adsorption experiment. The experimental data were fitted to the non-linear isotherm equations (Freundlich, Langmuir, and Temkin), while the adsorption modelling was interpreted by the pseudo-first order, pseudo-second order and Elovich models. The adsorptive mechanism was ascertained according to intraparticle-diffusion and boyd models. The intercalation of sodium salt into the bentonite surface give rise to the specific surface area and total pore volume from 120.34 to 426.91, m2/g and 0.155 to 0.225 cm3/g, respectively, indicating a large proportion of the newly formed surfaces may be connected to new pore walls, associated with the silanol (≡SiOH), and aluminol (≡AlOH), and hydroxyl (–OH) groups for the possible entrapment MB onto the adsorbent. The equilibrium data was satisfactory described by the Langmuir isotherm and pseudo-second order model, with a monolayer adsorption capacity for MB of 318.38 mg/g, while the thermodynamic study verified spontaneous, feasible, and endothermic of the adsorption process.

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Section: Introductionmentioning

confidence: 99%

Sodium salt-assisted low temperature activation of bentonite for the adsorptive removal of methylene blue

Shattar

Foo

2022

Sci Rep

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Preparation of a montmorillonite-derived adsorbent for the practical treatment of ionic and nonionic pesticides

Shattar

Zakaria

Foo

2019

Journal of Materials Research and Technology

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Preparation of eco-friendly activated carbon as a refining solution for the adsorptive treatment of analgesic acetaminophen

Foo¹

2018

Desalination and Water Treatment

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a b s t r a c tThis study explores the feasibility of durian seed as an alternative precursor for the preparation of eco-friendly activated carbon (DSAC) via physiochemical activation. The porosity, functionality, and surface chemistry of DSAC were featured by means of low-temperature nitrogen adsorptiondesorption curve, elemental analysis, scanning electron microscopy, Fourier transform infrared spectroscopy, evaluation of surface acidity/basicity, and zeta potential measurement. The adsorption behavior was examined by performing batch adsorption experiments using acetaminophen (ACT) as the model pollutant. Experimental data were simulated using the Freundlich, Langmuir, Temkin, and Dubinin-Radushkevich isotherm models. Kinetic modeling was fitted to the pseudo-first-order and pseudo-second-order equations. Results illustrated an encouraging performance toward the removal of ACT, with a monolayer adsorption capacity of 304.48 mg/g. The adsorption equilibrium was best confronted to the pseudo-second-order kinetic model, while the adsorptive removal of ACT onto DSAC was satisfactorily described by the Langmuir isotherm model. The findings demonstrated the applicability of DSAC as a promising adsorbent for the adsorptive treatment of analgesic ACT from the pharmaceutical contaminated wastewater.

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Enhancement of hazardous pesticide uptake, ametryn using an environmentallyfriendly clay-based adsorbent

Cited by 5 publications

References 29 publications

Sodium salt-assisted low temperature activation of bentonite for the adsorptive removal of methylene blue

Sodium salt-assisted low temperature activation of bentonite for the adsorptive removal of methylene blue

Preparation of a montmorillonite-derived adsorbent for the practical treatment of ionic and nonionic pesticides

Preparation of eco-friendly activated carbon as a refining solution for the adsorptive treatment of analgesic acetaminophen

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