Sintesis Silika Dari Abu Sekam Padi Termodifikasi 2-Merkaptobenzotiazol untuk Adsorpsi Ion Logam Cd2+ dan Cr6+
Abstract
A study on the adsorption of Cd2+ ion using silica gel modified with 2-mercaptobenzothiazole (MBT) from rice husk ash has been conducted. The modification of silica gel with MBT was conducted by several steps namely, sample preparation, synthesis of sodium silicate and modification of silica using MBT through a sol gel method. The XRF result showed that silica gel contained 98.98 % SiO2 . The FTIR spectrum of silika MBT showed the persence of Si-OH, Si-O, Si-O-Si and –SH groups. The surface area of silica gel and silica MBT were 163 m2/g and 30 m2/g, respectively. The adsorption capacity of Cd2+ ion was 0.42 mg/g and the adsorption percentage was 69.40%. The presence of Cr6+ ion decreased the adsorption capacity of silica MBT over Cd2+ ion.
Downloads
References
[2] Luh, B. S. 1980. Rice Production and Utilization, The Aui Publishing Company Inc. West Port Conecticut.
[3] Sulastri, S., dan Susila, K. 2010. Berbagai Macam Senyawa Silika Sintesis Karakterisasi Dan Pemanfaatan. Yogyakarta: Prosiding Seminar Nasional Penelitian Pendidikan dan Penerapan MIPA, Universitas Gaja Mada Press: 211–16.
[4] Tokman, N. 2003. Solid Phase Exaraction of Bismuth Lead and Nickel from Sweawater Using Silica Gel Modified with 3-Aminoproplytriethoxysilane Filled in a Syringe Prior to Their Determination by Graphite Furnace Atomic Absorption Spectrometry. Talanta 201–205.
[5] Prastiyanto, A., Choiril, A., dan Adi, D. 2009. Pengaruh Penambahan 2-Merkaptobenzotiazol (MBT) Terhadap Kemampuan Adsorbsi Gel Silika Dari Kaca Pada Ion Logam Kadmium. Jurnal; Jurusan Kimia, Universitas Diponegoro. Semarang. (Ii): 1–13.
[6] Saito, T. 2004. Inorganic Chemistry. Japan: Iwanami Publishing Company.
[7] Huheey, J. E., Keiter, E. A., dan Keiter, R. L. 1993. Inorganic Chemistry Fourth Edition. New York: Harper Collins College Publisher.
[8] Amri, A., Supranto., dan Fahrurozi. 2004. Kesetimbangan Adsorpsi Optional Campuran Biner Cd(II) dan Cr(III) dengan Zeolit Alam Terimpregnasi 2-merkaptobenzotiazol. Pekanbaru: Jurnal Natur Indonesia, Fakultas Teknik, Universitas Riau.
[9] Handayani, P.A., Eko, N., dan Dyah, Pita. 2014. Pemanfaatan Limbah Sekam Padi Menjadi Silika Gel. Semarang: Jurnal Bahan Alam Terbarukan, Fakultas Teknik Universitas Negeri Semarang.
[10] Yusuf, M., Suhendar, D., dan Eko, P. H. 2014. Studi Karakteristik Silika Gel Hasil Sintesis dari Abu Ampas Tebu dengan Variasi Konsentrasi Asam Klorida. Jurnal istek 8.1
[11] Sholika. I., Friyatmoko W. K., dan Erma. D.S. Sintesis dan Karakterisasi Silika dari Limbah Abu Sekam Padi (Oriza Sativa) dengan variasi Konsentrasi Pengasaman. Pelita-Jurnal Penelitian Mahasiswa UNY 2.
