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Title : Enhanced photocatalytic degradation of Remazol Black under visible light illumination through S doped TiO2 (S-TiO2) nanoparticles: operational factors and kinetic study
Author :

Prof. Dr. Endang Tri Wahyuni, M.S. (1) RISKA DWIYANNA (2) Prof. Drs. Roto, M.Eng, Ph.D. (3) KUSUMA PUTRI SUWONDO (4)
Date : 15 2021
Keyword : Kinetic, photocatalyst, photodegradation, remazol black, S-TiO2. Kinetic, photocatalyst, photodegradation, remazol black, S-TiO2.
Abstract : The degradation of Remazol Black (RBB) by S-TiO2 photocatalyst was investigated. X-ray diffraction, fouriertransform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and UV-vis specular reflectance spectroscopy has been used to characterize S-TiO2. The results suggested that the optical absorption edge of TiO2 was red-shifted by the addition of S dopants and the bandgap energy was 3.02 eV. The sulfur species were found to be evenly dispersed on the TiO2 crystal lattice as cationic sulfur (S6+) which corresponds to the cationic substitution on TiO2. The particle size decreased to 4-14 nm after S doping, which indicates that the addition of S dopants has contributed to an improvement in the photocatalyst surface area. The degradation of RBB was achieved 94?ter 120 min visible light irradiation, a remarkable increase compared to bare TiO2 which was only able to degrade 48% of RBB at the same time. Optimization of the pH showed that the optimum pH for RBB degradation was 3.0, and the photocatalyst dose was 0.8 g L-1 . Kinetic study showed that S-TiO2 photocatalytic degradation of RBB followed the pseudo-second-order kinetics model. Reducing the bandgap has been found to increase the activity of photodegradation in the visible light region
Group of Knowledge : Kimia
Original Language : English
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 GNESTJ_ PHOTODEGR RB UNDER TiO2-S.pdf
Document Type : Bukti Accepted
Bukti Accepted View
2 jurnal_2095788_21bb9ca87f127073419673eb74403100.pdf
Document Type : [PAK] Full Dokumen
[PAK] Full Dokumen View
3 Enhanced photocatalytic degradation of Remazol Black under visible light illumination through S doped TiO2 (S-TiO2) nanoparticles_ operational factors and kinetic study.pdf
Document Type : [PAK] Cek Similarity
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