creators_name: TRI AGUS WIJAYANTI, 1517011100
type: other
datestamp: 2022-03-31 04:13:51
lastmod: 2022-03-31 04:13:51
metadata_visibility: show
title: ADSORPSI MULTIKOMPONEN (ION Cu(II), METILEN BIRU, DAN 
KRISTAL VIOLET) PADA ADSORBEN HIBRIDA ALGA
Nannochloropsis sp. SILIKA-MAGNETIT (Fe3O4)
ispublished: pub
subjects: 540
full_text_status: restricted
abstract: Pada penelitian ini telah dilakukan sintesis adsorben hibrida alga Nannochloropsis 
sp. dengan menggunakan silika sebagai matriks (HAS) dan pelapisan magnetit 
(HASM) sebagai adsorben campuran pasangan larutan metilen biru (MB) dan 
kristal violet (KV), serta larutan multikomponen. Karakterisasi material 
menggunakan Spektrofotometer Inframerah (IR) untuk mengidentifikasi gugus 
fungsi, X-Ray Difraction (XRD) untuk mengetahui tingkat kekristalan, Scanning 
Eectron Microscopy with Energy Dispersive X-ray (SEM-EDX) untuk 
mengetahui morfologi permukaan. Kadar MB dan KV dianalisis dengan 
Spektrofometer UV-Vis pada panjang gelombang masing-masing 664 dan 591 nm 
sedangkan kadar ion Cu(II) ditentukan dengan menggunakan Spektrofotometer 
Serapan Atom (SSA). Adsorpsi MB dan KV pada HAS dan HASM dipelajari 
meliputi variasi waktu, variasi konsentrasi, penggunaan ulang, dan mekanisme 
adsorpsi. Kinetika adsorpsi pada adsorben HAS dan HASM dalam campuran 
pasangan larutan MB dan KV, serta larutan multikomponen cenderung mendekati 
model kinetika pseudo orde dua dengan nilai koefisien korelasi (R
2
) mendekati 1. 
Isoterm adsorpsi larutan MB dan KV dalam campuran pasangan larutan MB dan 
KV, serta larutan multikomponen pada adsorben HAS dan HASM cenderung 
mengikuti model isoterm Freundlich dengan nilai koefisien korelasi (R
2
) 
mendekati 1. Penggunaan ulang adsorben HASM dilakukan sebanyak 5 kali 
dengan persen adsorpsi > 99%. Mekanisme adsorpsi MB pada HAS dan HASM 
didominasi oleh interaksi pertukaran ion.
Kata Kunci : Nannochloropsis sp., hibrida alga-silika, magnetit, adsorpsi�desorpsi, Metilen biru, Kristal violet, ion Cu(II)

It has been conducted synthesis of hybrid Nannochloropsis sp. algae adsorbent by 
using silica as a matrix (HAS) and magnetite coating (HASM) as an adsorbent of 
methylene blue (MB) and crystal violet (CV) mixture, as well as multicomponent 
solutions. Material characterization used Infrared Spectrophotometer (IR) to 
identify functional groups, X-Ray Difraction (XRD) to determine the level of 
crystallinity and Scanning Electron Microscopy with Energy Dispersive X-ray 
(SEM-EDX) to determine surface morphology. The MB and CV concentration 
were analyzed by UV-Vis Spectrophotometer at 664 and 591 nm wavelengths 
while Cu (II) ion concentration was determined using Atomic Absorption 
Spectrophotometer (AAS). The MB and CV adsorption on HAS and HASM were 
studied including time variation, concentration variation, reusability, and 
adsorption mechanism. The kinetics of adsorption on HAS and HASM adsorbents 
in a mixture of MB and CV solution pair as well as multicomponent solutions 
tend to approach the pseudo-second order kinetics model with a correlation 
coefficient (R2
) close to 1. The isotherm adsorption of MB and CV solutions in a 
pair of mixtures, and multicomponent solutions on HAS and HASM adsorbent 
tend to follow the Freundlich isotherm model with a correlation coefficient (R2
) 
close to 1. Reuse of HASM adsorbent is done 5 times with percent of adsorption> 
99%. The MB adsorption mechanism on HAS and HASM is dominated by ion 
exchange interactions.
Keywords: Nannochloropsis sp., Hybrid algae-silica, magnetite, adsorption�desorption, Methylene blue, Crystal violet, Cu (II) ion.

date: 2019
date_type: published
publisher: Fakultas Matematika dan Ilmu Pengetahuan Alam
place_of_pub: UNIVERSITAS LAMPUNG
citation:   TRI AGUS WIJAYANTI, 1517011100  (2019) ADSORPSI MULTIKOMPONEN (ION Cu(II), METILEN BIRU, DAN KRISTAL VIOLET) PADA ADSORBEN HIBRIDA ALGA Nannochloropsis sp. SILIKA-MAGNETIT (Fe3O4).  Fakultas Matematika dan Ilmu Pengetahuan Alam, UNIVERSITAS LAMPUNG.     
document_url: http://digilib.unila.ac.id/57163/1/ABSTRAK.pdf
document_url: http://digilib.unila.ac.id/57163/2/SKRIPSI%20FULL.pdf
document_url: http://digilib.unila.ac.id/57163/3/SKRIPSI%20TANPA%20BAB%20PEMBAHASAN.pdf