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Title : Adsorption of HA (humic acid) using sulfuric acid-crosslinked chitosan/pectin polyelectrolyte complex film
Author :

Drs. Dwi Siswanta, M.Eng., Ph.D. (1) FARIDA (2) DIHLIZ ZUNAIM (3) Prof. Dr.rer.nat Nurul Hidayat Aprilita, S.Si., M.Si. (4)
Date : 0 2019
Keyword : Adsorption isotherms,Ammonia,Chitosan,Adsorption capacities,Sulfuric acid Adsorption isotherms,Ammonia,Chitosan,Adsorption capacities,Sulfuric acid
Abstract : A sulphuric acid-crosslinked chitosan/PEC film had been synthesized and applied for adsorption of HA from aqueous solution. The parameters for adsorption study were an optimum ratio of chitosan/pectin composition, contact time, the effect of the solution pH, and HA concentration. The model for adsorption kinetics and isotherm adsorption as well as desorption study were also conducted. The result showed that the film was durable in water at pH 2 to 12. The analysis using FTIR indicated a shift of absorption peak at 1527 cm–1 (bending vibration N– H in –NH3 +). Analysis with SEM showed the morphological differences of the film before and after adsorption and after desorption. Adsorption reached its optimum capacity in the film with a ratio of chitosan and pectin composition 70:30, at pH 6, contact time of 480 mins and HA concentration of 450 mg L–1 . The kinetic model of HA adsorption could be explained by the second-order kinetic model of Ho & McKay and the adsorption isotherm follows the Langmuir isotherm model with a maximum adsorption capacity of 50.0 mg g–1 , the Langmuir constant (KL) of 1.49×105 L mol–1 and the adsorption energy was found to be 29.7 kJ mol–1 . The highest desorption was 82.5% using 1 M NaOH.
Group of Knowledge :
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 Siswanta_2019_J__Phys___Conf__Ser__1156_012003.pdf
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2 jurnal_IOP.pdf
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3 jurnal_IOP Cek.pdf
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4 ABSTRACTS BOOK ICCHEM 2018.pdf
Document Type : Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian)
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5 _2019_J__Phys___Conf__Ser_ peserta seminar, steering committe, editor, dan penulis.pdf
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6 full dokumen.pdf
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