VALENSI
Jurnal Kimia VALENSI Volume 9, No. 1, May 2023

Characterization Study of Dyes Photodegradation-Adsorption Products by TiO2-Chitosan Immobilized on Glass Beads using Flow System

Bella Sukma Mahadika (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia Jalan Lingkar Kampus Raya, Pondok Cina, Beji, Depok, 16424, Indonesia)
Asep Saefumillah (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia Jalan Lingkar Kampus Raya, Pondok Cina, Beji, Depok, 16424, Indonesia)
Saepurahman Saepurahman (Center for Advanced Chemistry Research, National Research, and Innovation Agency (BRIN) Jalan PUSPITEK Building 452, Muncul, Serpong, South Tangerang, 15314, Indonesia)
Kiki Adi Kurnia (Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung Labtek X Building No. 12, Jalan Ganesha, Lebak Siliwangi, Coblong, Bandung, 40132, Indonesia)
Diana Vanda Wellia (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas Limau Manis, Pauh, Padang, 25163, Indonesia)



Article Info

Publish Date
04 Jun 2023

Abstract

Dyes have a complex molecular structure that is difficult to degrade and can persist for a long time in water bodies. This study examines more thoroughly the effectiveness of photodegradation-adsorption of dyes, kinetic aspects, isotherms, thermodynamics, identification of the structure of photodegradation products, and changes in environmental quality parameter values whose results are quite satisfactory. The combination of photodegradation-adsorption of dyes by TiO2-chitosan modified glass beads using a flow system has never been accomplished before. Flowing of the dye resulted in a dye degradation efficiency of 99%. The FESEM-EDX analysis shows that TiO2-chitosan has been coated onto the surface of the glass beads. R2 of kinetics MB, MO, RB are 0.99234, 0.9889, 0.9971, which were pseudo-first order. Qm, KL, R2 are 6.4382, 0.70533, 0.99923; 16.7364, 1.42059, 0.98816; 6.0078, 1.06973, 0.99889, respectively. The ∆H, ∆S, ∆S of -9.388, -0.024, -1.979; -27.182, -0.078, -3.592; -4.819, -0.017, 0.464 indicate the exothermic and spontaneous reaction. COD, TOC, pH, turbidity values have reached the threshold required by the government. The degradation products formed during the photodegradation-adsorption process were identified using LC-MS that the structure of the dye has been degraded to become simpler so that it is safely disposed of into the environment.

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Journal Info

Abbrev

valensi

Publisher

Subject

Chemistry

Description

Jurnal Kimia Valensi is a biannual and peer-reviewed open access journal published by Department of Chemistry, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta. This journal covering all aspect of ...