Pemanfaatan Limbah Cangkang Telur Ayam Sebagai Adsorben Pada Pemurnian Gliserol Dengan Metode Asidifikasi Dan Adsorpsi

Nadeak, Sandro; Hasibuan, Jesica Mentari; Naibaho, Lies Widya; Sinaga, Mersi Suriani

doi:10.32734/jtk.v8i1.1872

Cited by 4 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These properties make nanofibers highly effective in reducing environmental pollution [17]. The larger the surface area of the adsorbent, the greater the contact area, leading to more efficient absorption and, consequently, more effective adsorption [18]. Sugar palm fiber waste, a by- These observations align with existing research indicating that nanofibers derived from palm fiber waste typically have a smooth texture and white appearance [14].…”

Section: Introductionsupporting

confidence: 79%

Modification of Polyethylene Glycol and Citric Acid on Palm Fiber Waste Nanofibers on the Adsorption of Violet Crystal Dyes

Mahardiani,

Damayanti,

Maharani

et al. 2023

JKPK

View full text Add to dashboard Cite

<p>This study developed nanofibers derived from sugar palm fiber waste, incorporating citric acid and polyethylene glycol (PEG) modifications to adsorb crystal violet (CV) dye. The synthesis process involved alkalization-acid hydrolysis and bleaching techniques. Subsequent analyses of nanofiber characteristics were conducted using Fourier-Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX). The efficacy of these modified nanofibers in adsorbing CV was quantitatively measured using an Ultraviolet-Visible (UV-Vis) spectrophotometer. The study successfully synthesized nanofibers from sugar palm fiber waste with modifications: PEG-modified nanofibers (NP 2 and NP 24) and citric acid-modified nanofibers (NS 2 and NS 24). These modifications resulted in nanofibers with a smooth, white texture. FTIR analysis of the samples (N, NP 2, NP 24, NS 2, and NS 24) revealed the presence of functional groups essential for cellulose, specifically -OH, C-H, and C-O groups. The addition of citric acid introduced a new group, C=O, albeit with very weak intensity. PEG modifications were evident from the stretching observed in the -OH groups. SEM analysis confirmed the presence of a layer on the nanofibers, attributed to citric acid (NS 2 and NS 24) and PEG (NP 2 and NP 24). XRD results indicated that the pre-and post-modification nanofibers exhibited a semi-crystalline phase. The adsorption mechanism was predominantly guided by Van der Waals electrostatic interactions between the absorbent material and the adsorbate. Intriguingly, the citric acid and PEG modifications did not significantly alter the adsorption outcomes. The adsorption capacity remained stable over time, as evidenced by measurements of 0, 15, 30, 45, 60, 90, and 120 minutes.</p>

show abstract

Section: Introductionsupporting

confidence: 79%

Modification of Polyethylene Glycol and Citric Acid on Palm Fiber Waste Nanofibers on the Adsorption of Violet Crystal Dyes

Mahardiani,

Damayanti,

Maharani

et al. 2023

JKPK

View full text Add to dashboard Cite

show abstract

“…The density of purified glycerol is 1.248 g/mL, higher than conventional glycerol, which is 1.159 g/mL. However, the density of purified glycerol is closer to the density of standard glycerol BS 2621: 1979, which is 1.2671 g/mL [9]- [11]. Furthermore, purified glycerol has a much lower viscosity than crude glycerol.…”

Section: Resultsmentioning

confidence: 85%

Utilization of Biodiesel By-Product Glycerol as Plasticizer for Bioplastic Print Lamination

Suryadi¹,

Latif²,

Situngkir³

et al. 2022

Proceedings of the First Jakarta International Conference on Multidisciplinary Studies Towards Creative Industries, JICOMS 2022

View full text Add to dashboard Cite

Glycerol as a by-product of biodiesel continues to increase in Indonesia. Glycerol has a vast potential implementation in the cosmetic, pharmaceutical, and printing industries. This research aims to utilize glycerol as a by-product of palm biodiesel as a plasticizer in bioplastic applications as an alternative material for print laminating. Transesterification is carried out to separate crude glycerol from fatty acid methyl ester (biodiesel). Purification of crude glycerol was carried out using phosphoric acid. The results showed that the purified glycerol obtained from the by-product of biodiesel production could be used as a plasticizer for printed lamination bioplastic application. The purified glycerol's pH, density, and viscosity were 7.27; 1,248 g/mL; and 35.63 CST, respectively. The trial of printed lamination has proven that bioplastic lamination is lighter than conventional laminating, according to the higher CIE L* value. Moreover, the total color difference of prints laminated by bioplastics is lower than prints with conventional laminating, indicated by the value of delta E in all color samples of bioplastic laminated prints, which are lower than conventional laminating.

show abstract

“…Eggshells can lower acid and peroxide numbers by 91% and 58% [1]. Purification of glycerol using eggshells weighing ratio of 15% by acidification method in a ratio of 1:0.6 resulted in glycerol levels of 67.22% [13].…”

Section: Introductionmentioning

confidence: 99%

Optimization time and mass of eggshell adsorbent in improving waste cooking oil quality

Pratiwi

Gustiani²,

Amadea³

et al. 2022

J. Pijar.MIPA

View full text Add to dashboard Cite

Oxidation and hydrolysis damage to cooking oil can occur due to repeated use of cooking oil. Adsorption by utilizing eggshells, which contain high calcium carbonate and have a natural pore structure that can improve the quality of used cooking oil. This study aims to determine the physical properties and characteristics of the thermally activated chicken eggshell adsorbent and to determine the ability of the adsorbent to absorb acid and metal cadmium. The steps carried out in this study were the manufacture of adsorbents, quality tests of the adsorbents produced, and testing of adsorbents on used cooking oil samples based on acid numbers and decreasing levels of metal cadmium in the samples. The adsorption process of used cooking oil was carried out with variations in the mass of the adsorbent, namely 5, 7, 9, and 11 grams, and stirring time for 10, 20, 40, and 60 minutes. Based on the results of the study, it was found that the optimum conditions for decreasing the acid number with the use of an adsorbent mass of 11 grams and a stirring time of 60 minutes resulted in an acid number was 0.9974 mg NaOH/g with a decrease in the acid number of 76.54%, while for cadmium metal it decreased by 100% with adsorption capacity of 2.57124 mg/g.

show abstract

Pemanfaatan Limbah Cangkang Telur Ayam Sebagai Adsorben Pada Pemurnian Gliserol Dengan Metode Asidifikasi Dan Adsorpsi

Cited by 4 publications

References 5 publications

Modification of Polyethylene Glycol and Citric Acid on Palm Fiber Waste Nanofibers on the Adsorption of Violet Crystal Dyes

Modification of Polyethylene Glycol and Citric Acid on Palm Fiber Waste Nanofibers on the Adsorption of Violet Crystal Dyes

Utilization of Biodiesel By-Product Glycerol as Plasticizer for Bioplastic Print Lamination

Optimization time and mass of eggshell adsorbent in improving waste cooking oil quality

Contact Info

Product

Resources

About