Adsorption of Waste Metal Cr(VI) with Composite Membranes (Chitosan-Silica Rice Husks)

Zulti, Fifia; Dahlan, Kiagus; Sugita, Purwantiningsih

doi:10.7454/mss.v16i3.1477

Cited by 6 publications

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“…Sodium silicate solution from rice hull ash silica has been reported as precursor silica for preparation of silica based films [13]. The addition of sodium silicate from rice hull ash silica in the production of chitosan-silica film has been reported [14][15]. Based on the results of this study it can be concluded that the addition of silica affects the pore size of the chitosansilica film.…”

Section: Introductionmentioning

confidence: 56%

“…NaCl) [10][11][12][13][14][15][16]. Blending chitosan with compatible polymers such polyethylene glycol and silica results in spongy membranes also resulted in highly effective metal-affinity membranes [6,[14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Based on the results of this study it can be concluded that the addition of silica affects the pore size of the chitosansilica film. Particles of silica are ideal porogens for producing porous chitosan-silica film with controlled porosity and good mechanical properties [14][15].…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Ca(II), Mg(II), Zn(II), and Cd(II) on Chitosan Membrane Blended with Rice Hull Ash Silica and Polyethylene Glycol

2018

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In this research, chitosan based membrane blended with rice hull ash (RHA) silica and polyethylene glycol (PEG) has been applied as adsorbent of Ca(II), Mg(II), Zn(II) and Cd(II) based on the adsorption data at initial metal ion concentration and contact time variations, respectively. Results showed that the optimum condition of adsorption was at pH 9.0 for Ca(II), 6.0 for both Mg(II) and Zn(II) and 5.5 for Cd(II), and contact time of 24 h for all ions investigated. Kinetics of all investigated metal ion adsorption followed a kinetic model of pseudo-second-order. Adsorption of Ca(II) and Mg(II) on the membrane fitted toFreundlich model with the affinity of 1.266 and 1.099, respectively; and Zn(II)

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Section: Introductionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%

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Adsorption of Ca(II), Mg(II), Zn(II), and Cd(II) on Chitosan Membrane Blended with Rice Hull Ash Silica and Polyethylene Glycol

2018

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“…Silicate films showed moderate strength and flexibility, their barrier properties for non-polar organic solvents could be utilized for separating polar components from non-polar in the vapor phase or adsorption of polar compounds from a non-aqueous medium. The addition of sodium silicate from rice hull ash silica in the production of chitosan-silica film has been reported [10]. Based on the results of this study it can be concluded that the addition of silica affects the pore size of the chitosan-silica film.…”

Section: Introductionmentioning

confidence: 65%

Physical Characteristics of Chitosan Based Film Modified With Silica and Polyethylene Glycol

2014

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“…Sekam padi merupakan limbah pertanian yang cukup banyak dihasilkan yaitu untuk setiap 50 juta ton padi yang diproduksi dihasilkan 13 juta ton sekam padi per tahun dengan pemanfaatan yang masih sangat minimal [9]. Kandungan silika (SiO 2 ) pada sekam padi cukup tinggi yaitu 87-90% [10].…”

Section: Pendahuluanunclassified

KAJIAN ADSORPSI ION LOGAM Cr(VI) OLEH ADSORBEN KOMBINASI ARANG AKTIF SEKAM PADI DAN ZEOLIT MENGGUNAKAN METODE SOLID-PHASE SPECTROPHOTOMETRY (SPS)

Saputro

Masykuri

Mahardiani

et al. 2016

JSD

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AbstrakPenelitian ini bertujuan untuk memanfaatkan kombinasi arang aktif sekam padi dan zeolit sebagai adsorben dalam mengadsorpsi ion logam Cr(VI) dan mempelajari pengaruh komposisi adsorben kombinasi arang aktif sekam padi dan zeolit dalam mengadsorpsi ion logam Cr(VI), serta sensitivitas metode solidphase spectrophotometry (SPS) untuk menentukan penurunan kadar ion logam Cr(VI) dalam skala μg/L. Arang aktif sekam padi yang digunakan diperoleh melalui proses aktivasi dengan perendaman dalam larutan ZnCl 2 10% sedangkan zeolit menggunakan larutan H 2 SO 4 10%. Pengontakan adsorben dengan ion logam Cr(VI) dilakukan dengan variasi komposisi adsorben arang aktif sekam padi dan zeolit 1:1, 1:2, 1:3, dan 2:1. Analisis kadar Cr(VI) dilakukan menggunakan metode solid-phase spectrophotometry (SPS). Karakterisasi arang aktif sekam padi dan zeolit dilakukan menggunakan FTIR. Hasil penelitian ini menunjukkan bahwa: (1) kombinasi arang aktif sekam padi dan zeolit dapat digunakan sebagai adsorben dalam mengadsorpsi ion logam Cr(VI) dengan kapasitas adsorpsi 0,28 µg/g; (2) komposisi optimum adsorben adalah 1:2 dengan persentase penyerapan sebesar 40,99%; (3) solid-phase spectrophotometry (SPS) merupakan metode yang sensitif untuk analisis penurunan kadar ion Cr(VI) dalam tingkat µg/L dengan Limit of Detection (LOD) sebesar 0,021 µg/L. Kata kunci : adsorpsi, Cr(VI), arang aktif sekam padi, zeolit, solid-phase spectrophotometry AbstractThis study aims to study the use of activated rice husk charcoal and zeolite as combination adsorbents to adsorb Cr(VI) metal ions; the effect of the combination adsorbents of activated rice husk charcoal and zeolite's compositions to adsorb Cr(VI) metal ions; and the sensitivity of solid-phase spectrophotometry (SPS) as a method to determine the reduced levels of Cr(VI) metal ions in the level of g/L. The activated rice husk charcoal used were obtained through the activation process by soaking in a solution of ZnCl 2 10% while the zeolite with a solution of H 2 SO 4 10%. The contacting process of the adsorbents with Cr(VI) metal ions was done by varying the compositions of the activated rice husk charcoal and zeolite adsorbent, 1:1, 1:2, 1:3, and 2:1. The data analysis of the Cr(VI) level used solid-phase spectrophotometry (SPS) method. Characterization of activated rice husk charcoal and zeolite used FTIR. The results showed that: (1) a combination of activated rice husk charcoal and zeolite can be used as adsorbent to adsorb Cr(VI) metal ions with the adsorption capacity was 0,28 g/g; (2) the optimum composition of adsorbents was 1:2 with the percentage of absorption was 40,99%; (3) solid-phase spectrophotometry (SPS) is a sensitive method to determine the reduced levels of Cr(VI) in the level of g/L with the limit of detection (LOD) was 0,021 g/L.

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Adsorption of Waste Metal Cr(VI) with Composite Membranes (Chitosan-Silica Rice Husks)

Cited by 6 publications

References 0 publications

Adsorption of Ca(II), Mg(II), Zn(II), and Cd(II) on Chitosan Membrane Blended with Rice Hull Ash Silica and Polyethylene Glycol

Adsorption of Ca(II), Mg(II), Zn(II), and Cd(II) on Chitosan Membrane Blended with Rice Hull Ash Silica and Polyethylene Glycol

Physical Characteristics of Chitosan Based Film Modified With Silica and Polyethylene Glycol

KAJIAN ADSORPSI ION LOGAM Cr(VI) OLEH ADSORBEN KOMBINASI ARANG AKTIF SEKAM PADI DAN ZEOLIT MENGGUNAKAN METODE SOLID-PHASE SPECTROPHOTOMETRY (SPS)

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