title: SINTESIS MATERIAL HIBRIDA EKSOPOLISAKARIDA SILIKA   DARI Spirulina sp SEBAGAI ADSORBEN ION Pb(II) DAN Cd(II)    DALAM LARUTAN  
creator: WIDYASTUTI, 1327011037
subject: QD Chemistry
description: In this research, it has been carried out adsorption process of Pb(II) and  Cd(II) ions toward adsorbent of exopolysaccharide (EPS) modified with matrix  silica producing exopolysaccaride silica-hybrid (ESH). The material obtained  from synthesis result was characterized by spectrophotometer infrared (IR) to  identify functional groups and scanning electron microscope-energy dispersive xray    (SEM-EDX) to investigate surface morphology.  Determination of metal ion  concentration was performed by inductively coupled plasma-atomic emission  spectrometry (ICP-AES). Adsorption of Pb(II) and Cd(II) ions with HES is  optimum at pH 7 and consentration at 25 ppm with the capasities adsorption of  99.23 and 82.04 %, contact time of 15 min and it tends to follow second orde  pseudo kinetic model and Langmuir adsorption isotherm model.     Keywords: Exopolysaccharide, adsorption, silica-hybrid exopolysaccharide,   Pb(II) and Cd(II) ions    Pada penelitian ini, telah dilakukan adsorpsi ion Pb(II) dan Cd(II) terhadap  adsorben eksopolisakarida (EPS) yang dimodifikasi dengan matriks silika  menghasilkan hibrida eksopolisakarida-silika (HES). Material hasil sintesis  dikarakterisasi melalui identifikasi gugus fungsional dengan spektrofotometer  inframerah (IR), dan analisis morfologi permukaan dengan scanning electron  microscope-energy dispersive x-ray (SEM-EDX). Analisis kadar ion logam  ditentukan dengan menggunakan inductively coupled plasma-atomic emission  spectrometry (ICP-AES). Adsorpsi ion Pb(II) and Cd(II) oleh HES  optimum pada  pH 7 dan konsentrasi 25 ppm dengan kapasitas adsorpsi masing-masing rata-rata  sebesar 99,23 dan 82,04 %, waktu interaksi 15 menit serta cenderung mengikuti  model kinetika pseudo orde dua dan model isoterm adsorpsi Langmuir.       Kata Kunci: Eksopolisakarida, adsorpsi, hibrida-silika eksopolisakarida, ion  logam Pb(II), dan Cd(II) 
date: 2015-07-02
type: Skripsi
type: NonPeerReviewed
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identifier: http://digilib.unila.ac.id/11179/1/ABSTRACT.pdf
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identifier: http://digilib.unila.ac.id/11179/2/ABSTRAK.pdf
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identifier: http://digilib.unila.ac.id/11179/3/COVER%20DALAM.pdf
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identifier: http://digilib.unila.ac.id/11179/117/HLM%20PENGESAHAN.pdf
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identifier: http://digilib.unila.ac.id/11179/118/HLM%20PERSETUJUAN.pdf
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identifier: http://digilib.unila.ac.id/11179/119/PERNYATAAN.pdf
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identifier: http://digilib.unila.ac.id/11179/4/DAFTAR%20GAMBAR.pdf
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identifier: http://digilib.unila.ac.id/11179/5/DAFTAR%20ISI.pdf
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identifier: http://digilib.unila.ac.id/11179/6/DAFTAR%20TABEL.pdf
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identifier: http://digilib.unila.ac.id/11179/9/MOTTO.pdf
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identifier: http://digilib.unila.ac.id/11179/11/PERSEMBAHAN.pdf
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identifier: http://digilib.unila.ac.id/11179/12/RIWAYAT%20HIDUP.pdf
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identifier: http://digilib.unila.ac.id/11179/13/SANWACANA.pdf
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identifier: http://digilib.unila.ac.id/11179/120/BAB%201.pdf
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identifier: http://digilib.unila.ac.id/11179/121/BAB%202.pdf
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identifier: http://digilib.unila.ac.id/11179/123/BAB%204.pdf
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identifier: http://digilib.unila.ac.id/11179/18/BAB%205.pdf
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identifier: http://digilib.unila.ac.id/11179/19/DAFTAR%20PUSTAKA.pdf
identifier:   WIDYASTUTI, 1327011037  (2015) SINTESIS MATERIAL HIBRIDA EKSOPOLISAKARIDA SILIKA DARI Spirulina sp SEBAGAI ADSORBEN ION Pb(II) DAN Cd(II) DALAM LARUTAN.  UNSPECIFIED.     
relation: http://digilib.unila.ac.id/11179/