PVA:Nano-eggshell microcomposite as an energy storage material for supercapacitors

Taşaltın, Nevin; Karakuş, Selcan; Tüzün, Elif; Taşaltın, Cihat; Baytemir, Gülsen

doi:10.1007/s10854-022-07823-8

Cited by 4 publications

(1 citation statement)

References 52 publications

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“…EDX analysis of the sample showed that calcium (Ca), oxygen (O), and carbon (C) exhibited the highest concentrations. The whiter region (spectrum 1 in Supplementary Figure S1) was rich in inorganic material, containing calcium (31.18 wt.%), oxygen (50.16 wt.%), and carbon (18.17 wt.%), that corresponds most probably to calcium carbonate [40,41]. Additionally, traces of magnesium were identified.…”

Section: Characterization Of Adsorbents Used In the Purification Of W...mentioning

confidence: 99%

Utilization of Natural Adsorbents in the Purification of Used Sunflower and Palm Cooking Oils

Bostan,

Glevitzky,

Varvara

et al. 2024

Applied Sciences

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The purification of used oils and their introduction into production cycles lead to reduction in environmental contamination. A simulation was conducted to study the thermal degradation of sunflower oil under varying temperatures over time. In the purification process of used cooking oil, an adsorption technique using zeolite and eggshell as an adsorbent (5, 10, 20, and 30 g/100 mL used oil) was applied. To optimize purification, different doses of thermally and chemically activated adsorbents were used, at different temperatures (30 and 80 °C). Therefore, this study was conducted in batch operations to determine the effect of suitable adsorption for a contact time of the adsorbent of 2 h. In comparison, the purification of used vegetable oils was achieved using a saline solution. The adsorption capacity was evaluated by determining the physicochemical parameters of the oils before and after purification. The characterization of natural adsorbents was carried out using scanning electron microscopy (SEM) and X-ray fluorescence spectrometry (XRF). The results showed that the adsorbent in a dose of 30 g of zeolite activated with NaOH and heat-treated eggshell, respectively, exhibited a larger surface area and greater adsorption capacity. Adsorption increased with contact time. The FT-IR spectra of the oils showed the IR bands at 1097, 1160, and 1237, corresponding to the presence of the ester C-O-, 1743 for C=O ester, 2853, 2922 for (CH2, CH3), and 3008 for (C=C). The acidity and peroxide values decreased with increasing dose and contact time with zeolite or eggshell. Together, our result strongly suggests that natural adsorbents contribute to the purification of used oils.

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Section: Characterization Of Adsorbents Used In the Purification Of W...mentioning

confidence: 99%

Utilization of Natural Adsorbents in the Purification of Used Sunflower and Palm Cooking Oils

Bostan,

Glevitzky,

Varvara

et al. 2024

Applied Sciences

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show abstract

Eggshells & Eggshell Membranes– A Sustainable Resource for energy storage and energy conversion applications: A critical review

Rosaiah,

Yue,

Dayanidhi

et al. 2024

Advances in Colloid and Interface Science

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Achieving superior high-life-stability and stable structure for flexible fiber electrodes inspired by Bamboo rice dumpling

Nie

Ping

et al. 2023

Electrochimica Acta

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PVA:Nano-eggshell microcomposite as an energy storage material for supercapacitors

Cited by 4 publications

References 52 publications

Utilization of Natural Adsorbents in the Purification of Used Sunflower and Palm Cooking Oils

Utilization of Natural Adsorbents in the Purification of Used Sunflower and Palm Cooking Oils

Eggshells & Eggshell Membranes– A Sustainable Resource for energy storage and energy conversion applications: A critical review

Achieving superior high-life-stability and stable structure for flexible fiber electrodes inspired by Bamboo rice dumpling

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