期刊名称：Journal of Environmental & Analytical Toxicology
电子版ISSN：2161-0525
出版年度：2015
卷号：5
期号：6
DOI：10.4172/2161-0525.1000336
语种：English
出版社：OMICS International
摘要：Herein we reported the preparation and potential application of SiO2 NPs (SiO2 NPs) for the photocatalytic degradation of methyl red dye in aqueous medium. These are synthesized from rice husk ash (RHA) which was collected from rice mill near Shankaraghatta (Shimoga, Karnataka). Silica was present in large quantity in RHA, hence it can be extracted by an alkaline precipitation method was developed to produce pure silica xerogel. From XRD and FTIR analysis revealed the amorphous nature of SiO2 NPs along with the presence of siloxane group. TEM image confirms the formation of SiO2 NPs at 10 to 20 nm range. Furthermore the stabilization and formation of SiO2 NPs was confirmed by SEM/EDAX and TEM analysis. The photo catalytic activity of prepared pure SiO2 NPs towards remediation of dyes like Methyl red (MR) dye has been tested.
关键词：Rice husk ash; Silica nanoparticles; Methyl red dye;
Degradation
