Mechanical and Morphological Study of Arecanut Leaf Sheath (ALS), Coconut Leaf Sheath (CLS) and Coconut Stem Fiber (CSF)

Poddar, Pinku; Asad, Mohammad Asadulah; Islam, Muhammad Saiful; Sultana, Shahin; Nur, Husna Parvin; Chowdhury, A. M. Sarwaruddin

doi:10.15761/ams.1000113

Cited by 11 publications

(7 citation statements)

References 7 publications

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“…The collected leaf sheath was rinsed with deionized (DI) water and was dried in sunlight for a week which was further dried in the oven at 70 °C for 24 h. The sample was then ground by a mechanical grinder and then sieved to 80 mesh and is referred to as raw arecanut leaf sheath (RALS). The chemical composition of ALS constitutes 66.08% cellulose, 7.40% hemicellulose, 5.06% waxy matters, 1.15% pectic matters, and 0.72% aqueous extract ( Poddar et al., 2016 ). The RALS powder was refluxed with concentrated sulfuric acid 98% (density = 1.84 g/cm 3 , Molarity = 18.4 M) in a 1:3 (w/v) ratio and allowed to immerse for 5 h at 60 °C.…”

Section: Methodsmentioning

confidence: 99%

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Efficient biosorption of hexavalent chromium from water by modified arecanut leaf sheath

Pant

Neupane

Paudel

et al. 2022

Heliyon

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Section: Methodsmentioning

confidence: 99%

“…Arecanut leaf sheath is rich in cellulose content that is involved in metal binding ( Poddar et al., 2016 ). It is also commonly accessible in eastern regions of Nepal.…”

Section: Introductionmentioning

confidence: 99%

Efficient biosorption of hexavalent chromium from water by modified arecanut leaf sheath

Pant

Neupane

Paudel

et al. 2022

Heliyon

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“…This result also confirms the occurrence of non-graphitizable HC with irregular structures. If the peak intensity of D band decreases, and the value of I D /I G increases continuously, indicating the ordered graphene sheets in the materials that are highly defective [24,25]. The increase of the I D /I G ratio for the KOH, NaOH, and ZnCl 2 -treated HC suggests that harsh chemical treatments disturbed the structural order of the carbon.…”

Section: Resultsmentioning

confidence: 99%

Hard Carbon Reprising Porous Morphology Derived from Coconut Sheath for Sodium-Ion Battery

2022

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Seeking effective energy technology has become a herculean task in today’s world. Sodium-ion batteries play a vital role in the present energy tech market due to their entrancing electrochemical properties and this work is a breakthrough for developing sodium-ion batteries. As per recent reports, the preparation of anode materials seems to be very tedious in the realm of sodium-ion batteries. To remedy these issues, this work enlightens the preparation of hard carbon (HC) derived from coconut sheath (CS) by a pyrolysis process with different activating agents (KOH, NaOH, ZnCl2) and employed as an anode material for Sodium-ion batteries (SIBs). The prepared anode material was characterized for its thermal, structural, functional, morphological, and electrochemical properties. Additionally, the surface area and pore diameter of the as-prepared anode material was studied by nitrogen adsorption and desorption isotherm methods. The coconut sheath-derived hard carbon (CSHC) anode material delivered an initial charge capacity of 141 mAh g−1, 153 mAh g−1, and 162 mAh g−1 at a 1 C rate with a coulombic efficiency over 98.8%, 99.3%, and 99.5%, even after 100 cycles, respectively.

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“…It is well known that hydroxyl groups (-OH) present on the surface of the fibers is responsible for water absorption [27]. CLS fiber contains about 70% cellulose (α-cellulose and hemicelluloses) and 28% lignin [28]. The cellulose structure of CLS possesses a lot of -OH groups.…”

Section: Results and Discussion Water Uptake Of The Cls Fibermentioning

confidence: 99%

Study of Naturally Woven Coconut Leaf Sheath-Reinforced Polypropylene Matrix Based Composites

Poddar

Dey

Ganguli

et al. 2018

J. Pure App. Chem. Res.

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Renewable materials have gained significant attraction as reinforcement in polymer matrix composites. Naturally woven coconut leaf sheath (CLS) fiber-reinforced polypropylene (PP) composites were prepared by compression molding. Different composites were fabricated varying the weight percentage of CLS fiber (5, 10, 15, 20 and 25 wt%). Hydrophilic nature of the CLS fiber was evaluated using water uptake test and revealed strong hydrophilicity by gradually absorbing water until it reaches to a constant water uptake value of 150%. Structural features of the composites were confirmed by infrared spectrophotometry. Mechanical performance was investigated using tensile and bending tests. Fiber reinforcement significantly increased the mechanical properties of the composites, and the optimum improvement of strength and stiffness was achieved for the 10% fiber content. The tensile strength and stiffness was improved by 60 and 40%, respectively, whereas, bending strength and stiffness was increased by 70 and 50% respectively. Moreover, thermal properties, and degradation nature of the composites were investigated. Addition of fiber decreased the thermal stability of the composites. Degradation test of the composites were performed up to six months in soil medium at ambient condition and showed slow degradation of mechanical properties over time. The optimized composite retained 70% to 75% of its initial tensile strength and modulus, after six months degradation time.

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Mechanical and Morphological Study of Arecanut Leaf Sheath (ALS), Coconut Leaf Sheath (CLS) and Coconut Stem Fiber (CSF)

Cited by 11 publications

References 7 publications

Efficient biosorption of hexavalent chromium from water by modified arecanut leaf sheath

Efficient biosorption of hexavalent chromium from water by modified arecanut leaf sheath

Hard Carbon Reprising Porous Morphology Derived from Coconut Sheath for Sodium-Ion Battery

Study of Naturally Woven Coconut Leaf Sheath-Reinforced Polypropylene Matrix Based Composites

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