Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLim, Teik-Thyeen
dc.contributor.authorHou, Dianxunen
dc.contributor.authorFeng, Liangen
dc.contributor.authorZhang, Jianbinen
dc.contributor.authorDong, Shuangshien
dc.contributor.authorZhou, Dandanen
dc.identifier.citationHou, D., Feng, L., Zhang, J., Dong, S., Zhou, D., & Lim, T.-T. (2012). Preparation, characterization and performance of a novel visible light responsive spherical activated carbon-supported and Er3+:YFeO3-doped TiO2 photocatalyst. Journal of Hazardous Materials, 199-200, 301-308.en
dc.description.abstractA novel spherical activated carbon (SAC) supported and Er3+:YFeO3-doped TiO2 visible-light responsive photocatalyst (Er3+:YFeO3/TiO2-SAC) was synthesized by a modified sol–gel method with ultrasonic dispersion. It was characterized by scanning electron microscope (SEM), energy dispersive X-ray spectroscope (EDS), powder X-ray diffractometer (XRD) and UV–vis diffuse reflectance spectrophotometer (DRS). The photocatalytic activity of Er3+:YFeO3/TiO2-SAC was evaluated for degradation of methyl orange (MO) under visible light irradiation. The effects of calcination temperature and irradiation time on its photocatalytic activity were examined. The experimental results indicated that Er3+:YFeO3 could function as an upconversion luminescence agent, enabling photocatalytic degradation of MO by TiO2 under visible light. The Er3+:YFeO3/TiO2 calcinated at 700 °C showed the highest photocatalytic capability compared to those calcinated at other temperatures. The photocatalytic degradation of MO followed the Langmuir–Hinshelwood kinetic model. Although the photocatalyst showed a good physical stability and could tolerate a shear force up to 25 × 10−3 N/g, its photocatalytic activity decreased over a four-cycle of reuse in concentrated MO solution, indicating that the decreased activity was ascribed to the fouling of catalyst surface by MO during the degradation process. However, the fouled Er3+:YFeO3/TiO2-SAC could be regenerated through water rinsing-calcination or acid rinsing-calcination treatment.en
dc.relation.ispartofseriesJournal of hazardous materialsen
dc.rights© 2011 Elsevier B.V.en
dc.titlePreparation, characterization and performance of a novel visible light responsive spherical activated carbon-supported and Er3+:YFeO3-doped TiO2 photocatalysten
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
item.fulltextNo Fulltext-
Appears in Collections:CEE Journal Articles

Citations 1

checked on Sep 5, 2020

Citations 50

checked on Sep 24, 2020

Page view(s) 50

checked on Sep 25, 2020

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.