Adsorpsi tembaga (II) oleh biomassa chlorella sp yang termobilisasi pada silika gel

Sari , Enis Puspita (2003) Adsorpsi tembaga (II) oleh biomassa chlorella sp yang termobilisasi pada silika gel. Undergraduate thesis, FMIPA UNDIP.

[img]PDF
Restricted to Repository staff only

1442Kb
[img]
Preview
PDF
16Kb
[img]
Preview
PDF
351Kb
[img]
Preview
PDF
473Kb
[img]
Preview
PDF
376Kb
[img]
Preview
PDF
622Kb
[img]
Preview
PDF
379Kb
[img]PDF
Restricted to Repository staff only

522Kb
[img]
Preview
PDF
325Kb
[img]
Preview
PDF
344Kb
[img]
Preview
PDF
412Kb

Abstract

Biomassa Chlorella sp yang terimobilisasi pada silika gel dapat digunakan untuk mengadsorpsi tembaga (Cu). Pada penelitian ini dilakukan dengan membandingkan hasil adsorpsi biomassa Chlorella sp yang telah terimobilisasi pada silika gel dengan biomassa Chlorella sp untuk mengadsorpsi Cu(II) sehingga dapat diketahui kapasitas adsorpsi maksimum, konstanta kesetimbangan adsorpsi, energi adsorpsi serta pengaruh pH terhadap adsorpsi tersebut. Biomassa Chlorella sp terimobilisasi memiliki kapasitas adsorpsi maksimum sebesar 88,50 mg/g sedangkan biomassa Chlorella sp 17,67 mg/g. Konstanta kesetimbangan untuk biomassa Chlorella sp terimobilisasi adalah 1,84.104, tanpa imobilisasi 1,66. 104. Untuk energi adsorpsi biomassa Chlorella sp terimobilisasi sebesar 24,49 kJ/mol dan biomassa Chlorella sp 24,236 kJ/mol. Adsorpsi Cu(II) oleh biomassa Chlorella sp terimobilisasi pada silika gel maksimal pada pH 5 sedangkan pada biomassa Chlorella sp maksimal pada pH 4. Kata kunci: biomassa Chlorella sp, silika gel, tembaga, adsorpsi, imobilisasi Chlorella sp biomass immobilized on silica gel was used to adsorb Cu(II). The adsorption results were compared with unimmobilized one. The parameters determined covered adsorption capacity, adsorption constant and energy of Cu(II) as well as pH. The Immobilized and unimmobilized biomass had adsorption capacities of 88.50 mg/g and 17.67 mg/g respectively. The adsorption constant for immobilized Chlorella sp biomass was 1.84. 104 and that for unimmobilized was 1.66. 104. Further, the adsorption energies for immobilized and unimmobilized biomass were 24.490 kJ/mol for the former and 24.236 kJ/mol for the later. The maximum adsorption of Cu(II) by immobilized Chlorella sp biomass at pH 5 and by unimmobilized one at pH 4. Keywords: Chlorella sp biomass, silica gel, copper, adsorption, immobili

Item Type:Thesis (Undergraduate)
Subjects:Q Science > QD Chemistry
Divisions:Faculty of Science and Mathematics > Department of Chemistry
ID Code:30959
Deposited By:Mr UPT Perpus 1
Deposited On:10 Nov 2011 12:31
Last Modified:10 Nov 2011 12:31

Repository Staff Only: item control page