Microdetermination of organic compounds concerned in destructive phenols in industrial waste water is studied in this paper Spectrophotometry was used for the analysis of hydroquinone The hydroquinone could react with...Microdetermination of organic compounds concerned in destructive phenols in industrial waste water is studied in this paper Spectrophotometry was used for the analysis of hydroquinone The hydroquinone could react with sodium phosphotungstate to form a blue complex in the treatment process of waste water containing phenol by photoelectrocatalytic degradation method The affecting factors were discussed and the optimum parameters were obtained The absorbance of the colored product was measured at 745*#nm, 20*#℃～25*#℃ with pH value of 8～10 and the amount of indicator (sodium phosphotungstate) of 5*#ml for 5*#min The hydroquinone could be determined in the presence of other middle products, such as phenol, benzoquinone and maleic anhydride The recovery of hydroquinone was in range from 958% to 1013% and relative standard deviation was less than 39% It proves to be a practical way for easy analysis of hydroquinone in enviroment monitoring with the advantages of application of relatively simple apparatus, small amount of sample, and rapid and convenient展开更多
The BiOCl powders prepared by the hydrolysis method were investigated with the X-ray diffractometry（XRD）,scanning electron microscopy（SEM） and differential thermal analysis（TG？DTA）.The results show that the pow...The BiOCl powders prepared by the hydrolysis method were investigated with the X-ray diffractometry（XRD）,scanning electron microscopy（SEM） and differential thermal analysis（TG？DTA）.The results show that the powders are of the tetragonal primitive crystal structure,composed of homogeneous particles of fine ferrite plates,and stable in the temperature range of 40？600 ℃.In addition,the photocatalytic activity of BiOCl powders was evaluated by methyl orange（MO） in aqueous solution illuminated by xenon-lamp,and the effect of the BiOCl amount on the photocatalytic activity was investigated.Moreover,the photocatalytic properties of BiOCl and TiO2-P25 were also compared.The results show that the favorite amount of BiOCl powders is 1.0 g/L for the MO degradation,and the photocatalytic activity of the BiOCl catalyst is comparable to the TiO2-P25 catalyst under the same experiment condition.展开更多
文摘Microdetermination of organic compounds concerned in destructive phenols in industrial waste water is studied in this paper Spectrophotometry was used for the analysis of hydroquinone The hydroquinone could react with sodium phosphotungstate to form a blue complex in the treatment process of waste water containing phenol by photoelectrocatalytic degradation method The affecting factors were discussed and the optimum parameters were obtained The absorbance of the colored product was measured at 745*#nm, 20*#℃～25*#℃ with pH value of 8～10 and the amount of indicator (sodium phosphotungstate) of 5*#ml for 5*#min The hydroquinone could be determined in the presence of other middle products, such as phenol, benzoquinone and maleic anhydride The recovery of hydroquinone was in range from 958% to 1013% and relative standard deviation was less than 39% It proves to be a practical way for easy analysis of hydroquinone in enviroment monitoring with the advantages of application of relatively simple apparatus, small amount of sample, and rapid and convenient
基金Project(20876104) supported by the National Natural Science Foundation of ChinaProject(20090311082) supported by Science and Technology Foundation of Shanxi Province,China
文摘The BiOCl powders prepared by the hydrolysis method were investigated with the X-ray diffractometry（XRD）,scanning electron microscopy（SEM） and differential thermal analysis（TG？DTA）.The results show that the powders are of the tetragonal primitive crystal structure,composed of homogeneous particles of fine ferrite plates,and stable in the temperature range of 40？600 ℃.In addition,the photocatalytic activity of BiOCl powders was evaluated by methyl orange（MO） in aqueous solution illuminated by xenon-lamp,and the effect of the BiOCl amount on the photocatalytic activity was investigated.Moreover,the photocatalytic properties of BiOCl and TiO2-P25 were also compared.The results show that the favorite amount of BiOCl powders is 1.0 g/L for the MO degradation,and the photocatalytic activity of the BiOCl catalyst is comparable to the TiO2-P25 catalyst under the same experiment condition.
