The adsorption of heavy metal Pb(II) by silica based adsorbent from volcanic ash of mount sinabung

Authors

  • Lisnawaty Simatupang Jurusan Kimia, FMIPA
  • Devy Putri Oktavia Jurusan Kimia, FMIPA
  • Maryati Doloksaribu Jurusan Fisika, FMIPA

DOI:

https://doi.org/10.24114/jpkim.v9i2.7682

Abstract

Adsorpsi logam berat Pb (II) oleh adsorben berbasis silika dari abu vulkanik gunung Sinabung dengan sistem batch meliputi: jumlah adsorben, waktu kontak, pH dan konsentrasi telah dilakukan.hasil menunjukakan bahwa massa silika optimum diperoleh 0,25 g dengan Pb (II) yang teradsorpsi 9,8801x10-6 mol / g. Waktu kontak optimum 40 menit dengan jumlah Pb (II) yang teradsorpsi 9.9091x10-6 mol / g. pH optimum adsorpsi adalah pH 7 dengan jumlah Pb (II) yang teradsorpsi 9,5845x10-6 mol / g. Konsentrasi optimumnya adalah 110 ppm dengan jumlah Pb (II) yang teradsorpsi 2.3103x10-5 mol / g.Kata kunci: Silika gel, adsorpsi, batch, Ion Pb (II)

Author Biographies

Lisnawaty Simatupang, Jurusan Kimia, FMIPA

Universitas Negeri Medan, Medan-Indonesia

Devy Putri Oktavia, Jurusan Kimia, FMIPA

Universitas Negeri Medan, Medan-Indonesia

Maryati Doloksaribu, Jurusan Fisika, FMIPA

Universitas Negeri Medan, Medan-Indonesia

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Published

2017-08-31

Issue

Vol. 9 No. 2 (2017): Agustus

Section

Articles

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Copyright (c) 2017 Lisnawaty Simatupang, Devy Putri Oktavia, Maryati Doloksaribu

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