Synthesis of novel potassium peroxodisulfate-modified titanium dioxide for photocatalytic oxidation of acetaminophen under visible light irradiation

doi:10.1007/s13762-016-1193-y

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Resources Management > Periodical Articles > Item 310902800/31667

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.cnu.edu.tw/handle/310902800/31667

题名:	Synthesis of novel potassium peroxodisulfate-modified titanium dioxide for photocatalytic oxidation of acetaminophen under visible light irradiation
作者:	de Luna, M. D. G. Aranzamendez, G. L. Tolosa, N. C. Lu, M. -C.
贡献者:	Univ Philippines, Dept Chem Engn Univ Philippines, Coll Engn, Environm Engn Unit Malayan Coll Laguna, Off Res Promot & Coordinat Chia Nan Univ Pharm & Sci, Dept Environm Resources Management
关键词:	Amorphous Band gap energy Crystallinity Doped titanium dioxide Paracetamol Sintering
日期:	2017-05
上传时间:	2018-11-30 15:52:10 (UTC+8)
出版者:	Springer
摘要:	In recent years, traces of acetaminophen, a widely used analgesic and anti-inflammatory and known to be an over-the-counter drug, have been detected unaltered in effluents of conventional wastewater treatment facilities. About 58-68% released through excretion during patient's therapeutic treatment, and only about 80-86% were removed by the wastewater treatment facility. This study investigated the improved performance of photocatalysis in degrading or removing acetaminophen. The visible light active potassium peroxodisulfate-doped titanium dioxide photocatalysts synthesized via sol-gel method was used to eliminate acetaminophen from aqueous solutions through photocatalytic oxidation. The effects of the amount of dopant, calcination temperature and calcination time on the properties and visible light photocatalytic activity of potassium peroxodisulfate-doped titanium dioxide were also investigated. Increasing the amount of the dopant and calcination temperature up to a certain extent increases removal efficiency while further decreased the removal rate. Potassium peroxodisulfate-doped titanium dioxide photocatalysts were characterized by X-ray diffraction, ultraviolet-visible light diffuse reflectance spectroscopy, Brunauer-Emmett-Teller method and X-ray photoelectron spectroscopy. Potassium peroxodisulfate-doped titanium dioxide with 0.5%(w) dopant and calcined at 300 A degrees C for 3 h degrades about 100% acetaminophen in aqueous solution within 540 min. The reaction of acetaminophen with the photocatalyst has an apparent rate constant of 8.39 x 10(-3) min(-1).
關聯:	International Journal of Environmental Science and Technology, v.14, n.5, pp.973-982
显示于类别:	[Dept. of Environmental Resources Management] Periodical Articles

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	1477	检视/开启

在CNU IR中所有的数据项都受到原著作权保护.

TAIR相关文章

数据加载中.....