title: ADSORPSI MULTIKOMPONEN (METILEN BIRU, KRISTAL VIOLET,  DAN ION Cu(II)) OLEH ADSORBEN HIBRIDA ALGA Spirulina sp.  SILIKA-MAGNETIT (Fe3O4)
creator: SITI NUR AINI, 1517011080
subject: 540 Kimia dan ilmu yang berhubungan
description: In this research, it has been conducted synthesis of Algae Hybrid Silica (HAS)  and Algae Hybrid Silica-Magnetite (HASM) from algae biomass Spirulina sp. to  be used as an adsorbent multicomponent solution (methylene blue, crystal violet,  and Cu(II) ion). The synthesized adsorbents were characterized using an infrared  spectrophotometer (IR) to identify functional groups, X-ray Diffraction (XRD) to  determine the level of crystallinity and Scanning Electron Microscopy with  Energy Dispersive X-ray (SEM-EDX) to analyze surface morphology and  elemental composition. The concentration of methylene blue and crystal violet in  multicomponent solution was analyzed using a UV-Vis spectrophotometer while  the concentration of Cu(II) ion was analyzed by Atomic Absorption  Spectrophotometer (AAS). Adsorption of multicomponent solution on HAS and  HASM adsorbent optimum at pH 8 with contact times of 30 and 15 minutes,  respectively. The adsorption rate of multicomponent solutions to HAS and  HASM tends to follow the pseudo second order kinetics model. Multicomponent  adsorption isotherms tend to follow the Freundlich isotherm model. The HAS and  HASM adsorbent can be used repeatedly to adsorb methylene blue as much as 5  times in the repetition cycle with an adsorption percentage < 80%. Keywords: Spirulina sp., adsorption, methylene blue, crystal violet, Cu(II) ion,  multicomponent.    Pada penelitian ini telah dilakukan sintesis Hibrida Alga Silika (HAS) dan Hibrida  Alga Silika-Magnetit (HASM) dari biomassa alga Spirulina sp. untuk digunakan  sebagai adsorben larutan multikomponen (metilen biru, kristal violet, dan ion  Cu(II)). Adsorben hasil sintesis dikarakterisasi menggunakan spektrofotometer  inframerah (IR) untuk mengidentifikasi gugus fungsi, X-ray Diffraction (XRD)  untuk menentukan tingkat kekristalan serta Scanning Electron Microscopy with  Energi Dispersive X-ray (SEM-EDX) untuk menganalisis morfologi permukaan  dan komposisi unsur. Kadar larutan metilen biru dan kristal violet dalam larutan  multikomponen dianalisis menggunakan spektrofotometer UV-Vis sedangkan ion  Cu(II) dianalisis dengan Atomic Absorption Spectrophotometer (AAS). Adsorpsi  larutan multikomponen oleh adsorben HAS dan HASM optimum pada pH 8  dengan waktu kontak masing-masing selama 30 dan 15 menit. Laju adsorpsi  larutan multikomponen terhadap HAS dan HASM cenderung mengikuti model  kinetika pseudo orde dua. Isoterm adsorpsi multikomponen cenderung mengikuti  model isoterm Freundlich. Adsorben HAS dan HASM dapat digunakan secara  berulang untuk mengadsorpsi metilen biru sebanyak 5 kali siklus pengulangan  dengan persentase adsorpsi < 80%.  Kata kunci : Spirulina sp., adsorpsi, metilen biru, kristal violet, ion Cu(II),  multikomponen,      
publisher: Fakultas Matematika dan Ilmu Pengetahuan Alam
date: 2019
type: Skripsi
type: NonPeerReviewed
format: text
identifier: http://digilib.unila.ac.id/57145/1/ABSTRAK.pdf
format: text
identifier: http://digilib.unila.ac.id/57145/2/SKRIPSI%20FULL.pdf
format: text
identifier: http://digilib.unila.ac.id/57145/3/SKRIPSI%20TANPA%20BAB%20PEMBAHASAN.pdf
identifier:   SITI NUR AINI, 1517011080  (2019) ADSORPSI MULTIKOMPONEN (METILEN BIRU, KRISTAL VIOLET, DAN ION Cu(II)) OLEH ADSORBEN HIBRIDA ALGA Spirulina sp. SILIKA-MAGNETIT (Fe3O4).  Fakultas Matematika dan Ilmu Pengetahuan Alam, UNIVERSITAS LAMPUNG.     
relation: http://digilib.unila.ac.id/57145/