請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/45717
標題: The heterogeneous photocatalytic degradation, intermediates and mineralization for the aqueous solution of cresols and nitrophenols
作者: Wang, K.H.
謝永旭
Hsieh, Y.H.
Chen, L.J.
關鍵字: photocatalytic degradation
titanium dioxide
cresol
nitrophenol
phenol
期刊/報告no:: Journal of Hazardous Materials, Volume 59, Issue 2-3, Page(s) 251-260.
摘要: This investigation was initiated to study the heterogeneous photocatalytic reactions of cresols and nitrophenols with ultraviolet light/titanium dioxide (UV/TiO2) system. The experimental parts consisted of pH effect, determination of intermediates and mineralization. At pH 7 and a concentration of 0.1 mM, cresols and nitrophenols nearly disappeared after 2.5 h of reaction time. Under various pH levels, the pseudo first order rate constants of Langmuir-Hinshelwood model was found satisfactory. From the results of GC/MS analysis, most intermediate products were hydroxyl derivatives of parent compounds as a result of photocatalyzed hydroxylation, In the mineralization of o-nitrophenol, about 89.6% of the compounds were mineralized in 9 h of reaction time with initial formation of nitrite and nitrate ions, indicating denitration followed by subsequent degradation. (C) 1998 Elsevier Science B.V.
URI: http://hdl.handle.net/11455/45717
ISSN: 0304-3894
文章連結: http://dx.doi.org/10.1016/s0304-3894(97)00151-9
顯示於類別:環境工程學系所

文件中的檔案:
沒有與此文件相關的檔案。


在 DSpace 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。