Research on reaction kinetics of photocatalytic degradation of methylene blue in water solution with SrTiO3 nano film

doi:10.4028/www.scientific.net/AMR.662.158

CORC > 兰州理工大学 > 兰州理工大学 > 国际教育学院

	Research on reaction kinetics of photocatalytic degradation of methylene blue in water solution with SrTiO3 nano film
	Liu Hong-jun; Fan Zhou-gong; Li Yamin
	2013
关键词	SrTiO3 film Photocatalytic degradation Reaction kinetics Methylene blue Sol-gel
卷号	662
DOI	10.4028/www.scientific.net/AMR.662.158
页码	158-+
英文摘要	The nanostructured SrTiO3 film was prepared by sol-gel method and spin-coating process. The X ray diffraction (XRD) analysis shows that the SrTiO3 film is perovskite structure and has the average particle size 25.39nm. The photocatalytic degradation experiments were carried out in methylene blue solutions with the SrTiO3 film. The experimental results show that: the critical concentration of methylene blue solution is slightly higher than 3.289x10(-5)mol/L at which concentration the degradability of film can be most effectively exploited; when the molar concentration is less than the critical concentration, the photocatalytic degradation reaction can be expressed as the first-order reaction kinetics model and the reaction rate decreases with increasing initial concentration; when the concentration is higher than the critical concentration, the degradation reaction is more consistent with the zero-order reaction kinetics model, and the reaction rate remains almost constant with the varied concentration.
会议录	NANOTECHNOLOGY AND PRECISION ENGINEERING, PTS 1 AND 2
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS记录号	WOS:000320341000034
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36889]
专题	国际教育学院材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Liu Hong-jun
作者单位	Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Liu Hong-jun,Fan Zhou-gong,Li Yamin. Research on reaction kinetics of photocatalytic degradation of methylene blue in water solution with SrTiO3 nano film[C]. 见:.