Synthesis and Characterization of Silica Gel from Corn Cob Ash and Its Adsorption Study Toward Cu(II) Metal Ion

Fathurrahman, Muhammad; Taufiq, Agus; Widiastuti, Diana; Hidayat, Fajar Dwi Fauzi

doi:10.26874/jkk.v3i2.66

Cited by 3 publications

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“…Kami juga menggunakan Kiesel Gel 60 G sebagai silika gel pembanding yang umum diperjual-belikan. Menurut (Fathurrahman et al, 2020) Kiesel Gel 60 G memiliki kadar air 13,644%. Kadar air dapat dihitung dengan rumus: persentase kadar air =…”

Section: Tinjauan Pustakaunclassified

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Pemanfaatan Limbah Sabut dan Tempurung Kelapa Sawit sebagai Silica Gel

Bramanta,

Prasetia,

Susilowati

2023

JIUBJ

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The increase in the area of oil palm in Indonesia also causes an increase in the amount of palm oil waste. Waste in the form of coir and palm shells is thrown away. While the content of silica (SiO2) in both materials is feasible to be utilized. Silica gel is a form of utilization of oil palm coir and shells. The results of X-Ray Fluorescence (XRF) analysis showed that the silica (SiO2) content in palm coir ash was 27.5%, while 36.10% was in palm shell ash. Silica gel is an adsorbent produced by the sol-gel method, namely the formation of a gel derived from precursor compounds. The precursor compound in the formation of silica gel is sodium silicate solution (Na2SiO3) which is produced from the extraction process of coir ash and palm shells using sodium hydroxide (NaOH) solvent. The concentration of NaOH used varied, namely 1, 3, 5, 7, and 9 M. The aging times used for the formation of silica gel also varied, namely 4, 8, 12, 16, and 20 hours. Dry silica gel with the highest quantity of 5.4115 grams was obtained by adding NaOH with a concentration of 9 M and a aging time of 20 hours. While the silica gel which has the most suitable water content and Fourier Transform Infra Red (FTIR) graphic pattern with Kiesel Gel 60 G is silica gel resulting from the addition of 3M NaOH with a aging time of 8 hours. However, the results of the Structural Equation Modeling (SEM) analysis of silica gel showed results that were not in accordance with silica gel in general.

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Section: Tinjauan Pustakaunclassified

“…Dalam penelitian ini silika gel pembanding yang kami gunakan adalah Kiesel Gel 60G. Menurut(Fathurrahman et al, 2020) kadar air Kiesel Gel 60G adalah sebesar 13,664%. Sedangkan menurut Yusuf (2014) kadar air Kiesel Gel 60G adalah sebesar 11,2648%.…”

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Pemanfaatan Limbah Sabut dan Tempurung Kelapa Sawit sebagai Silica Gel

Bramanta,

Prasetia,

Susilowati

2023

JIUBJ

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“…NaOH will dissolve SiO 2 in the ash, and heating will complete the dissolving process. The heating temperature must be kept stable to avoid excessive solution evaporation (Fathurrahman et al, 2020). Then the solution was melted at 500 ᵒC.…”

Section: Manufacturing Of Sodium Silicatementioning

confidence: 99%

Synthesis and Characterization of Silica Gel from Palm Shell and Coir Ash

Sunarti,

Mariwy,

Laitupa

2023

Indo. J. Chem. Res.

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This study aims to determine the composition of the oxide, the characteristics of palm shell and coir, and silica gel synthesized. The oxide composition, crystallinity, palm shell and coir ash functional groups were analyzed using XRF, XRD, and FTIR. Analysis of the functional groups and crystallinity using FT-IR and XRD. The results showed the composition of SiO2 in palm shell and coir ash was 76%, and SiO2 in the form of quartz and cristobalite was more dominant than amorphous SiO2. The synthesis success was indicated by the appearance of peaks with low intensity, not sharp, and resembling bumps on the synthesized silica gel diffractogram, which is an amorphous SiO2 characteristic. This result is confirmed by FT-IR, where absorption at wave number 455 cm-1 is a Si-O-Si bending vibration, 783 cm-1 is a stretching vibration of Si-O symmetry of Si-O-Si, 3454.51 cm-1, and 3568 cm-1 with fairly high intensity are characteristic of the -OH group from Si-OH. The wide and sharp absorption at 1083.99 cm-1 is a stretching vibration of the Si-O symmetry of Si-O-Si, 1625.99 cm-1 is -OH vibration of water molecule, 798.53 cm-1 is Si-O stretching vibration of Si-O-Si and absorption of 462.92 cm-1 indicates bending vibration of Si-O-Si.

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“…SG should be modified. The SG was modified with D-glycine (Si-Gly, Mg 2+ [11] Cu 2+ [12], and NO 3 - [7]. Silica, with the chemical formula SiO 2 , is an oxide compound with no active group.…”

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confidence: 99%

Effectiveness of polyethylene glycol-coated silica on ions adsorption in industrial wastewater

Maryudi,

Rahayu,

Hakika

2023

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The effect of coating silica with polyethylene glycol on the adsorption of iron and phosphate ions in industrial wastewater was investigated. Variable factors were temperature and time of coating, PEG concentration, and PEG to silica ratio. Infrared spectroscopy and scanning electron microscopy were used to evaluate the chemical structure and morphology of PEG-coated silica. Optimum iron and phosphate ions removal efficiency was obtained using a coating temperature of 50°C, a coating time of 15 min, a PEG concentration of 20%, and a PEG to silica ratio of 1:3.

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Synthesis and Characterization of Silica Gel from Corn Cob Ash and Its Adsorption Study Toward Cu(II) Metal Ion

Cited by 3 publications

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Pemanfaatan Limbah Sabut dan Tempurung Kelapa Sawit sebagai Silica Gel

Pemanfaatan Limbah Sabut dan Tempurung Kelapa Sawit sebagai Silica Gel

Synthesis and Characterization of Silica Gel from Palm Shell and Coir Ash

Effectiveness of polyethylene glycol-coated silica on ions adsorption in industrial wastewater

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