Adsorption of Mg (II) Ion Using Chlorophilized Chitin Adsorbent

Darjito Darjito, Rachmat Triandi, Diah Mardiana, M. Fathoni

Abstract


A study concerning the adsorption of Mg (II) ions using phosporilation chitin adsorbent. The process is a surface modification of adsorbent chitin by enriching the phosphate group that acts as a hard base so it would be more suitable binding Mg (II) ions, which acts as a hard acid. This research aims to study the effect of contact time and concentration variations of Mg (II) ions on the adsorption process using phosporilation chitin adsorbent. Variables to be examined in this study in order are contact times (40, 60, 80, 100, and 120 minutes) and the concentration of Mg (II) ions variation are (10, 25, 50, 75, 100, 125, 150, 175, and 200 ppm). The results for the characterization of phosporilation chitin adsorbent can be detect from the IR absorption band at wavenumber 1099.35 cm-1 are suspected of phosphate ions and IR absorption band at wave number 1272.93 cm-1 and 1201.57 cm-1 are estimated as phosphate covalent. The contacts times significantly affect the adsorption Mg (II) ions by the phosporilation chitin adsorbent, then the optimum of contact time is 120 minutes. Adsorption capacity of phosporilation chitin adsorbent for the Mg(II) ions is 499 mg/g.


Keywords


Mg (II) ions, adsorption, phosporilation chitin adsorbent

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References


Said, N.I. (2008), Teknologi Pengolahan Air Minum “Teori dan Pengalaman Praktis“, Pusat Teknologi Pengembangan

Deputi Bidang Teknologi Pengembangan Sumber Daya Alam BPPT, Jakarta.

Laboratorium Operasi Teknik Kimia (2011), Penyisihan Kesadahan dengan Metode Penukar Ion, http://che.ft-untirta.ac.id/download-center/category/1-operasiteknikkimia?download=14%3Apenyisihan-kesadahan, Diakses tanggal 13 September 2011.

Rosetya, M.I. (2009), Modifikasi Silika Gel dari Abu Sekam Padi dengan Gugus Sulfonat Melalui Senyawa Epoksi untuk Adsorpsi Ion Logam Magnesium dan Besi, Skripsi, Jurusan Kimia, Universitas Diponegoro, Semarang.

Bahtiar, A.R. (2008), Penurunan Kesadahan Air Menggunakan Serbuk Sekam Padi Perlakuan dengan NaOH, Skripsi, FMIPA, Universitas Diponegoro, Semarang

Cahyaningrum, S.E., Agustini, R. and Herdyastuti, N. (2007), Pemakaian Kitosan Limbah Udang Windu sebagai Matriks Pendukung pada Imobilisasi Papain, Jurnal Aktakimindo 2 ( 2):93-98.

Apriani, L. (2008), Seleksi Bakteri, www.lontar.ui.ac.id/file?file=digital/124100-BIO.004-08.Literatur. Diakses tanggal 04 Juli 2011.

Rahayu, L. H., and S. Purnavita (2007), Optimasi Pembuatan Kitosan dari Kitin Limbah Cangkang Rajungan (Portunus pelagicus) untuk Adsorben Ion Logam Merkuri, Reaktor 11 (1): 45-49.

Kim, S.H., Song, H., Nisola, G.M., and, Ahn, J. (2006), Adsorption of Lead(II) Ion using Surface-Modified Chitins, J. Ind. Eng. Chem, Vol 12., No3, (2006) 469-475.

Irma, C., Darjito, and Prananto, Y.P. (2012), Pengaruh Lama Kontak dan pH pada adsorpsi Mg2+ menggunakan adsorben kitin dari Limbah Cangkang Keong Mas (Pomacea canaliculata), Jurusan Kimia FMIPA UB.




DOI: http://dx.doi.org/10.21776/ub.natural-b.2013.002.01.1

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