改性非均相芬顿试剂的制备及光助降解苯酚废水分析.docx

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黑龙江大学硕士学位论文 洲Y 川 1 ㈣9 m4 洲0 ㈣9 眦7 5
Abstract
This paper for preparation Fe203,y·趾2C13,at the s锄e time,Modified doped adopts the method of Layered immersion for preparation Fe203-Ce02/?-A1203 catalysts,Phenol was used to the pile catalyst of catalytic the shine tO improved reaction system,improve the performance of phenol degradation.
This paper adopts the-method of impregnation for preparation Fe203/y-A1203,The :
research was using scanning electron microscope(SEM)and X-ray diffraction(XRD)
● and X—ray photoelectron spectroscopy(xPS)means to analyze sample appearance, structure,elements,optimized the conditions of preparation show that: Surface has a lot of irregular catalyst particles,the surface on Catalyst Fe/A1 atomic
ratio Was the catalytic under the condition of different preparation Fe203/,and the results showed that the performance degradation phen01. Fe('N03)3 pickling liquid concentration is mol/L,roasting temperature for 300℃, roasting time for 2h,Fea03/y-AbOs catalyst reaction after 120rain of phenol, degradation ofphenol for %removal.
ultraviolet and bined to form the homogeneous photo—Fenton reaction system,谢th its degradation Fenton reaction reagents,and investigation of phenol reaction process result shows:the initial concentration of phenol 250mg/L,Fe203/T-舢203 catalyst for g,(quality score for 3%)H202 solution 4mL,
value,reaction temperature 25℃,for 120min removal of phenol Can reach at
%.
Using Ce modified Fe203/T-A1203 catalyst,using layered impregnation method Fe203-Ce02/y-A1203 to improve iron dispersion,reduce iron dissolution improve catalyst stability and improve the efficiency of phenol degradation,application scanning electron microscope(SEM)and X—ray diffraction CXRO)and X-my photoelectron
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Abstract
spectroscopy(xPS)meansofsampleappearance,咖tIlre,elementsandstudy analyzed test,production process and reac