Pemanfaatan Sabut Kelapa Sebagai Bioadsorben Logam Berat Pb(II) Pada Air Limbah Industri

Ifa, La; Pakala, Frans Rante; Jaya, Fitra; Majid, Rafdi Abdul

doi:10.33536/jcpe.v5i1.476

Cited by 8 publications

(9 citation statements)

References 11 publications

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“…Positive CV (N+) sites at neutral pH would interact with negative sites on functional nanofibers, such as OH groups. This was also in line with the research explaining that functional groups in the form of ketones, aldehydes, phenols, and ethers could undergo electrostatic interactions with a cationic molecule so that they could undergo chemical adsorption [34]. The interaction between CV and nanofiber was Van der Waals electrostatic interaction,n, as in Figure 5.…”

Section: Adsorption a Reaction Mechanismsupporting

confidence: 88%

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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

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<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>

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Section: Adsorption a Reaction Mechanismsupporting

confidence: 88%

“…This was due to a carboxyl group from citric acid [31]. This carboxy group was suggested to enhance the electrostatic interaction between nanofibers and adsorbent [34]. The results in Table 1 show that before and after the modification, nanofiber…”

Section: B X-ray Diffraction (Xrd)mentioning

confidence: 99%

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

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“…Kadar timbal pada darah ialah < 10 g/dL, meski kadar timbal pada darah normal kurang dari batas maksimum yang diperbolehkan tetapi timbal bisa menyebabkan masalah kesehatan pada manusia [6]. Sedangkan menurut WHO (World Health Organization) baku mutu limbah Pb2+ dalam air sebesar 0,1 mg/L dan menurut KLH (Kementrian Lingkungan Hidup) No 02 tahun 1988 sebesar 0,05 -1 mg/L [7].…”

Section: Pendahuluanunclassified

Optimasi Penyerapan Ion Logam Pb2+ Menggunakan Kulit Manggis (Garcinia Mangostana L.) Dengan Matode Batch

Husna,

Kurniawati

2024

Periodic

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Pb 2+ ion is a metal that is toxic and harmful to the health of the human body and causes mental disorders and can cause environmental pollution. Biosorption is to release heavy metal ions by utilizing various natural ingredients. The purpose of this study was to determine the optimum conditions for mangosteen peel activated with NaOH using variations in particle size, agitation speed and absorption capacity of Pb2+ metal ions using a batch method. The results of this study resulted in optimum conditions for the absorption of Pb2+ ions at a particle size of 180 μm and a stirring speed of 200 rpm with an absorption capacity of 31.25 mg/g. Biosorption using mangosteen peel has been shown to be able to absorb Pb2+ ions using the batch method.

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“…Most people use coconut husk as firewood. Coconut fiber contains cellulose, hemicellulose, and lignin, which have functional groups like aldehydes, ketones, esters, and phenols with a negative charge that can allow electrostatic interactions between the coconut fiber and metal ion to cause chemical adsorption (Ifa, Pakala, Burhan, Jaya, & Majid, 2020). Coconut coir that has been mashed using an 80 mesh sieve is then activated by immersion using NaOH solution concentrated at 1 M for 24 hours.…”

Section: Preparation the Coconut Fiber Base Activatedmentioning

confidence: 99%

Kinetic Study of Blue Methylene Adsorption Using Coconut Husk Base Activated

Baunsele

Boelan²,

Kopon³

et al. 2022

Indo. J. Chem. Res.

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Blue methylene is a cationic dye. It is usually as in various industries. The waste of blue methylene can reduce the environmental balance, especially for aquatic biota, by inhibiting the penetration of sunlight into the water. The experiment used the most natural ingredients and methods to minimize the existence of the dye. In this research, coconut husk was activated with NaOH solution and then used for blue methylene adsorption. The coconut husk started aims to reduce the pollution of the adsorbent to increase the adsorption capacity. The study result showed the optimum adsorption of blue methylene at pH 7 for 75 minutes of adsorption with the capacity adsorption of 1.41 mg g-1. The development of the kinetic study described the adsorption process according to a second-order pseudo reaction kinetic model with the constant adsorption rate of 2.54 x 10-4 g mg-1 minute-1.

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Pemanfaatan Sabut Kelapa Sebagai Bioadsorben Logam Berat Pb(II) Pada Air Limbah Industri

Cited by 8 publications

References 11 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

Optimasi Penyerapan Ion Logam Pb2+ Menggunakan Kulit Manggis (Garcinia Mangostana L.) Dengan Matode Batch

Kinetic Study of Blue Methylene Adsorption Using Coconut Husk Base Activated

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