Relationship between theoretical oxygen demand and photocatalytic chemical oxygen demand for specific classes of organic chemicals
Relationship between theoretical oxygen demand and photocatalytic chemical oxygen demand for specific classes of organic chemicals
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DOI：
10.1039/b007005j
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发表时间：
2000-01-01
期刊：
影响因子：
4.2
通讯作者：
Karube, I
中科院分区：
文献类型：
--
作者：
Kim, YC;Sasaki, S;Karube, I
使用官方化学需氧量（COD）方法（即，高锰酸盐和重铬酸盐法），并将其氧化水平与理论需氧量（ThOD）值进行比较。此外，还采用CODMn、Cr法对官方COD和ThOD值进行了相关性分析，并考虑了它们各自的优缺点。同一组样品，本研究还研究了ThOD值和光催化COD传感器的响应值之间的关系，该传感器已被开发用于克服与官方COD方法相关的几个问题。由光催化COD传感器确定的响应值与ThOD值的关系：对于来自每个不同化学类别的20种有机化学品，r = 0.96。
The oxidation behavior of twenty organic chemicals from four different classes (sugars, benzene derivatives, alcohols and carboxyl acids) were investigated using the official chemical oxygen demand (COD) methods (i.e., permanganate and dichromate methods) and their oxidation levels compared with the theoretical oxygen demand (ThOD) values. In addition, the correlation between the official COD and ThOD values was also examined using the CODMn, Cr method and their relative merits were considered. With the same set of samples, this study also examined the relationship between ThOD values and the response values of a photocatalytic COD sensor which has been developed to overcome several of the problems associated with the official COD methods. The relationship of the response values determined by the photocatalytic COD sensor to those ThOD values was obtained: r = 0.96 for the 20 organic chemicals from each different chemical class.