Equilibrium, kinetic and thermodynamic studies for adsorption of As(III) on coconut (Cocos nucifera L.) fiber

Nashine, Ashish; Tembhurkar, A. R.

doi:10.1016/j.jece.2016.06.005

Cited by 49 publications

(9 citation statements)

References 21 publications

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“…In addition, there are also nature-sourced bio-sorbents which are commonly developed from the lowcost by-products of agricultural, domestic and industrial sectors [10]. The bio sorbents include powder from rubber leaf (Hevea brasiliensis), sawdust [4], rice husks [16], bagasse [17], peanut shell [1], fruit stem [18], banana peels [19], peanut powder [20], coconut coir [21], coffee grounds [22] and many others. For the specific application in Pb removal, various bio-sorbents, such as peanut shells [1], Sargassum filipendula [23], Pinus sylvestris [24], corncobs [25] and Cinnamomum camphora [26], have been used.…”

Section: Introductionmentioning

confidence: 99%

Development of Biosorbent Derived from the Endocarp Waste of Gayo Coffee for Lead Removal in Liquid Wastewater—Effects of Chemical Activators

et al. 2021

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This study reports the development of bio-based adsorbent by utilizing coffee endocarp (CE) waste as a raw material for lead (Pb) removal from liquid wastewater. The effect of NaOH and HCl as activation precursors on the characteristics and performance of the resulting adsorbents was investigated. The prepared adsorbents were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray fluorescence (XRF) and Surface Area Analyzer (SAA). The characterization results confirm the positive role of the activation by either NaOH or HCl in enhancing the surface properties of the resulting adsorbents. The chemical activations removed most of impurities leading to smoother surface, pore size enlargement and enhanced surface area to pore volume ratio, which result in an enhanced adsorption capacity and Pb removal efficiency. The raw adsorbent shows 57.7% of Pb removal efficiency and sorption capacity of 174.4 mg/g. On the other hand, after the chemical treatment using HCl and NaOH, the Pb removal efficiencies increased up to 63.9% and 89.86%, with adsorption capacity of 193 and 271.58 mg/g, respectively. Though both activated sorbents demonstrate better adsorption performance compared to the non-activated CE, overall results reveal that the NaOH-activated sorbent offers better characteristic and performance than the HCl-activated sorbent.

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Section: Introductionmentioning

confidence: 99%

Development of Biosorbent Derived from the Endocarp Waste of Gayo Coffee for Lead Removal in Liquid Wastewater—Effects of Chemical Activators

et al. 2021

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“…The following three thermodynamic parameters were analyzed: the Gibbs free energy of adsorption (ΔG 0 ), the enthalpy change (ΔH 0 ), and the entropy change (ΔS 0 ). The Gibbs free energy of adsorption (ΔG 0 ) was estimated with the use of the following equation: [71,72] G R ln…”

Section: Methodsmentioning

confidence: 99%

Identification of the Physicochemical Factors Involved in the Dye Separation via Methionine‐Functionalized Mesoporous Carbons

Gościańska

Galarda

Ejsmont

et al. 2021

Advanced Sustainable Systems

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“…33 The low damage caused to CTPF during processing when employed as reinforcement in a polymer composite with UPR as matrix is proven by studying the FTIR spectrum of CTPFC. 34…”

Section: Ftir Analysis Of Ctpfcmentioning

confidence: 99%

Characterization of Cocos nucifera L. peduncle fiber reinforced polymer composites for lightweight sustainable applications

Mansingh

Binoj²,

Anbazhagan³

et al. 2022

J of Applied Polymer Sci

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The present work aims to investigate the potentiality of reinforcing coconut tree peduncle fiber an agro-waste with unsaturated polyester resin, optimizing its mechanical properties and promote as an alternative reinforcement to harmful synthetic fiber polymer composites. It was found that polymer composites with 40 wt% fiber content exhibited maximum mechanical properties and started to decline on further addition of fibers due to lack of sufficient resin to wet the fibers leading to fiber pull-out and debonding under applied loads. This was also evidenced from the observed micrograph of specimen undergone tensile failure.In addition, the chemical bonding between the fiber and matrix was confirmed through Fourier transform infrared analysis. Also, the thermal stability was ascertained by the degradation temperature obtained through thermo-gravimetric analysis. Moreover, the water absorption study in fresh and seawater exposed the pseudo-Fickian behavior and aquatic properties of the developed composite, which was further confirmed by the crystalline size obtained through X-ray diffraction analysis. The above holistic analysis of the fabricated composite ensures its sustainable use in automotive and marine industries.

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Equilibrium, kinetic and thermodynamic studies for adsorption of As(III) on coconut (Cocos nucifera L.) fiber

Cited by 49 publications

References 21 publications

Development of Biosorbent Derived from the Endocarp Waste of Gayo Coffee for Lead Removal in Liquid Wastewater—Effects of Chemical Activators

Development of Biosorbent Derived from the Endocarp Waste of Gayo Coffee for Lead Removal in Liquid Wastewater—Effects of Chemical Activators

Identification of the Physicochemical Factors Involved in the Dye Separation via Methionine‐Functionalized Mesoporous Carbons

Characterization of Cocos nucifera L. peduncle fiber reinforced polymer composites for lightweight sustainable applications

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