Adsorpsi Metil Violet 2B Menggunakan Silika Gel dari Limbah Botol Kaca Reagen Kimia: Optimasi dengan Desain Box-Behnken

Faqih, Muhammad Zidan Chisa (2023) Adsorpsi Metil Violet 2B Menggunakan Silika Gel dari Limbah Botol Kaca Reagen Kimia: Optimasi dengan Desain Box-Behnken. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 01211940000021-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2025. Download (4MB) | Request a copy

Abstract

Silika gel dari limbah kaca reagen kimia telah berhasil disintesis pada penelitian ini. Limbah botol kaca reagen kimia yang digunakan berasal dari IPAL Departemen Kimia, Fakultas Sains dan Analitika Data, ITS. Silika gel disintesis melalui dua metode yaitu metode fusi alkali dan metode sol gel. Silika gel hasil sintesis diuji kemampuan adsorpsinya terhadap pewarna metil violet 2B. Studi optimasi parameter adsorpsi pada penelitian ini dilakukan melalui metode pendekatan Metodologi Respon Permukaan (RSM) dengan desain Box-Behnken (BBD) sebagai desain eksperimennya. Silika gel hasil sintesis dikarakterisasi dengan instrumen XRD, FTIR, dan XRF. Hasil karakterisasi XRD menunjukkan jika silika gel yang telah disintesis memiliki struktur amorf, sedangkan hasil hasil karakterisasi FTIR mengkonfirmasi keberadaan gugus fungsi silanol (Si-OH) dan siloksan (Si-O-Si) dalam sampel silika gel hasil sintesis, di mana gugus fungsi tersebut dapat berperan sebagai gugus aktif dalam proses adsorpsi. Hasil analisis XRF menunjukkan jika silika gel hasil sintesis memiliki kemurnian sebesar 75,63%. Optimasi dilakukan pada 4 parameter adsorpsi, yaitu pH (3-9), konsentrasi awal adsorbat (10-30 mg/L), massa adsorben (30-100 mg), dan waktu kontak (15-60 menit). Perubahan konsentrasi metil violet 2B diidentifikasi dengan bantuan spektrofotometer Uv-Vis pada panjang gelombang maksimumnya yaitu 585 nm. Hasil optimasi menunjukkan bahwa adsorbsi ]metil violet 2B oleh adsorben silika gel dari limbah botol kaca reagen kimia berlangsung secara optimal pada variasi rentang pH 7-9, rentang konsentrasi awal larutan metil violet 2B 27-30 mg/L, rentang massa adsorben 70-95 mg, dan rentang waktu kontak 30-40 menit, di mana pada kondisi tersebut, nilai % removal metil violet 2B mencapai 98,69%.
==============================================================================================================================
Silica gel from chemical reagent glass waste has been successfully synthesized in this study. The chemical reagent glass bottle waste used comes from IPAL of the Department of Chemistry, Faculty of Science and Data Analytics, ITS. Silica gel was synthesized by two methods, namely the alkaline fusion method and the sol gel method. The synthesized silica gel was tested for its adsorption ability on methyl violet 2B dye. In this study, the adsorption parameter optimization study was carried out using the Response Surface Methodology (RSM) approach with the Box-Behnken design (BBD) as the experimental design. The synthesized silica gel was characterized by XRD, FTIR, and XRF instruments. The XRD characterization results indicated that the synthesized silica gel had an amorphous structure, while the FTIR characterization results confirmed the presence of silanol (Si-OH) and siloxane (Si-O-Si) functional groups in the synthesized silica gel samples, where these functional groups can act as an active group in the adsorption process. The results of the XRF analysis showed that the synthesized silica gel had a purity of 75.63%. Optimization was carried out on 4 adsorption parameters, namely pH (3-9), initial concentration of adsorbate (10-30 mg/L), mass of adsorbent (30-100 mg), and contact time (15-60 minutes). The concentration of methyl violet 2B were identified using Uv-Vis spectrophotometer at the maximum wavelength of 585 nm. Optimization results showed that the adsorption of methyl violet 2B by silica gel from chemical reagent glass bottle waste took place optimally at various pH ranges 7-9, the initial concentration range of methyl violet 2B solution was 27-30 mg/L, the adsorbent mass range was 70-95 mg, and the contact time range was 30-40 minutes, where under these conditions, the % removal value of methyl violet 2B reached 98.69%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Adsorpsi, Desain Box-Behnken (BBD), Metil Violet 2B, Metodologi Respon Permukaan (RSM), Silika Gel, Adsorption, Box-Behnken Design (BBD), Methyl Violet 2B, Surface Response Methodology (RSM), Silica Gel
Subjects:	Q Science > QD Chemistry Q Science > QD Chemistry > QD547 Flocculation, precipitation, adsorption, etc.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Zidan Chisa Faqih
Date Deposited:	07 Feb 2023 08:19
Last Modified:	07 Feb 2023 13:42
URI:	http://repository.its.ac.id/id/eprint/96379

Actions (login required)

View Item