TY - JOUR
T1 - Characterization Study of Dyes Photodegradation-Adsorption Products by TiO2-Chitosan Immobilized on Glass Beads using Flow System
AU - Mahadika, Bella Sukma
AU - Saefumillah, Asep
AU - Saepurahman, Saepurahman
AU - Kurnia, Kiki Adi
AU - Wellia, Diana Vanda
N1 - Funding Information:
The authors thank the University of Indonesia for funding the research through Research Collaboration Indonesia 2022 (NKB-1079/UN2.RST/HKP.05.00/2022).
Publisher Copyright:
© 2023, State Islamic University Syarif Hidayatullah Jakarta, Faculty of Science and Technology, Department of Chemistry. All rights reserved.
PY - 2023/5
Y1 - 2023/5
N2 - 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 ΔH, ΔS, ΔS 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.
AB - 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 ΔH, ΔS, ΔS 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.
KW - chitosan
KW - Degradation product
KW - dyes
KW - glass beads
KW - TiO
UR - http://www.scopus.com/inward/record.url?scp=85166056686&partnerID=8YFLogxK
U2 - 10.15408/jkv.v9i1.31855
DO - 10.15408/jkv.v9i1.31855
M3 - Article
AN - SCOPUS:85166056686
SN - 2460-6065
VL - 9
SP - 123
EP - 135
JO - Jurnal Kimia Valensi
JF - Jurnal Kimia Valensi
IS - 1
ER -