Maulida, Riska and Rorong, Evan Dean Nathanael (2026) Sintesis Dan Karakterisasi Bead Komposit Kitosan/Karboksimetil Selulosa/TiO₂ Untuk Adsorpsi Dan Fotodegradasi Metil Oranye. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pencemaran zat warna sintetis seperti metil oranye (MO) merupakan permasalahan lingkungan karena sifatnya yang persisten dan sulit terdegradasi, sehingga diperlukan metode pengolahan yang efektif dan ramah lingkungan. Metode adsorpsi dengan menggunakan adsorben berbasis kitosan (CS) mampu menghemat biaya dan lebih ramah lingkungan dibandingkan dengan metode lainnya. Selain itu, pengintegrasian metode adsorpsi dengan fotodegradasi dapat membantu meningkatkan efektivitas adsorben. Fotodegradasi dapat menguraikan senyawa organik berbahaya menjadi senyawa yang lebih ramah lingkungan, seperti H₂O dan CO₂ dengan menggunakan material fotokatalis dan sinar UV. Pada sintesa adsorben kitosan akan dikombinasikan dengan carboxymethyl cellulose (CMC) untuk meningkatkan kinerja adsorpsi dan TiO₂ sebagai material fotokatalis. Sintesis bead adsorben dilakukan melalui metode crosslink secara fisika melalui perubahan pH. Akan tetapi, penggunaan TiO₂ yang tidak tepat dapat mengurangi efektivitas penetrasi cahaya selama proses fotodegradasi. Oleh karena itu, penelitian ini dilakukan guna menginvestigasi performa dan karakteristik dari adsorben dengan variasi massa TiO₂ pada komposit CS/CMC/TiO₂ serta variasi pH awal larutan. Didapatkan bahwa adsorben dengan rasio TiO₂ 6% merupakan adsorben yang paling optimal dalam proses adsorpsi-fotokatalisis yang mencapai persen removal sebesar 79,664% pada suhu 30 oC dengan pH 5.
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Synthetic dye pollution such as methyl orange (MO) poses a serious environmental problem due to its persistent nature and resistance to degradation, necessitating effective and environmentally friendly treatment methods. Adsorption using chitosan (CS)-based adsorbents offers a cost-effective and eco-friendly alternative compared to conventional methods. Furthermore, integrating adsorption with photodegradation can significantly enhance the removal efficiency of dyes. Photodegradation can break down harmful organic compounds into more environmentally friendly compounds, such as H₂O and CO₂, using photocatalytic materials and UV light. In the synthesis of chitosan adsorbents, carboxymethyl cellulose (CMC) will be combined to improve adsorption performance, and TiO₂ will be used as a photocatalytic material. The synthesis of adsorbent beads is carried out through physical crosslinking via pH manipulation. However, improper use of TiO₂ can reduce the effectiveness of light penetration during the photodegradation process. Therefore, this study was conducted to investigate the performance and characteristics of adsorbents with variations in TiO₂ mass in CS/CMC/TiO₂ composites and variations in the initial pH of the solution. It was found that the adsorbent with an 6% TiO₂ content was the most effective in the adsorption-photocatalysis process, achieving a removal rate of 79.664% at a temperature of 30 °C and a pH of 5.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Adsorpsi, Kitosan, Carboxymethyl cellulose, Fotodegradasi, Methyl Orange, TiO₂. =========================================================== Adsorption, Chitosan, Carboxymethyl cellulose, Photodegradation, Methyl Orange, TiO₂. |
| Subjects: | Q Science > QD Chemistry > QD716 Photocatalysis. T Technology > TP Chemical technology > TP1140 Polymers T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP248.65.C55 Chitosan--Biotechnology. |
| Divisions: | Faculty of Vocational > 24305-Industrial Chemical Engineering |
| Depositing User: | Riska Maulida |
| Date Deposited: | 28 Jul 2026 03:42 |
| Last Modified: | 28 Jul 2026 03:42 |
| URI: | http://repository.its.ac.id/id/eprint/138291 |
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