Irmansyah Irmansyah
Staf Pengajar Departemen Fisika, FMIPA, Institut Pertanian Bogor, Jalan Meranti Gedung Wing S no 3 Dramaga Bogor – 16680

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EKTRAKSI SILIKON DIOKSIDA DARI DAUN BAMBU Halimah Sa'diyah; Salamet Nurhimawan; Sigit Ahmad Fatoni; Irmansyah Irmansyah; Irzaman Irzaman
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.995 KB) | DOI: 10.21009/0305020303

Abstract

Silika extract has got from bamboo leaf by leaching with HCl 7% p.a. After bamboo leaf was burned, the charcoal was heated in the furnace with annealing rates of 0.9 and 1 °C/minute. The first temperature was room temperature, then increased to 400 °C with 2 hours arrested time. And last increased to 950 °C with 1 hour arrested time. The resulting ash was leached with HCl 7% p.a and its pH was neutralisted by aquabides. Then, the neutral ash was heated in furnace at 1000 °C. The result of EDX analysis showed that silica samples have purity levels of 84.53% to 99.99%. FTIR result showed that silica samples have absorption bands at wave numbers of 1071 cm-1, 1060 cm-1 and 798 cm-1 which indicate the asymetric stretching vibration of Si-O from siloxane group. Keywords: silica, bamboo leaves, purity level, function group.