Photocatalytic sensor for chemical oxygen demand determination based on oxygen electrode

被引：87

作者：

Kim, YC ^{[1
]}

Lee, KH ^{[1
]}

Sasaki, S ^{[1
]}

Hashimoto, K ^{[1
]}

Ikebukuro, K ^{[1
]}

Karube, I ^{[1
]}

机构：

[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan

来源：

ANALYTICAL CHEMISTRY | 2000年 / 72卷 / 14期

关键词：

D O I：

10.1021/ac9911342

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The construction and performance evaluation of a novel Chemical Oxygen Demand (COD) sensor is described. The sensor measures, using an oxygen electrode, a decrease of dissolved oxygen of a given sample resulting from photocatalytic oxidation of the organic compounds therein. As the photocatalyst, titanium dioxide (TiO2) fine particles adsorbed on a translucent poly(tetrafluoroethylene) (PTFE) membrane was used. The oxygen electrode with the membrane attached on its tip was used as the sensor probe. The operation characteristics of the sensor are demonstrated using an artificial wastewater and real water samples from lakes in Japan. This method is considered to be reliable, in that the observed parameter is close to the theoretical definition of chemical oxygen demand (COD), the amount of oxygen consumed for oxidation of organic compounds.

引用

页码：3379 / 3382

页数：4

共 27 条

[1] TiO2-photocatalytic oxidation of selected heterocyclic sulfur compounds [J].

Abdel-Wahab, AMA ;

Gaber, AEM .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1998, 114 (03) :213-218

[2] Photocatalytic reactions involving hydroxyl radical attack - I. Reaction kinetics formulation with explicit photon absorption effects [J].

Alfano, OM ;

Cabrera, MI ;

Cassano, AE .

JOURNAL OF CATALYSIS, 1997, 172 (02) :370-379

[3]

APPLETON JMH, 1986, ANAL CHIM ACTA, V179, P269, DOI 10.1016/S0003-2670(00)84471-2

[4]

ARAKI S, 1985, KANKYOKAGAKUZITEN

[5] CHEMICAL OXYGEN-DEMAND DETERMINATION IN WELL AND RIVER WATERS BY FLOW-INJECTION ANALYSIS USING A MICROWAVE-OVEN DURING THE OXIDATION STEP [J].

BALCONI, ML ;

BORGARELLO, M ;

FERRAROLI, R ;

REALINI, F .

ANALYTICA CHIMICA ACTA, 1992, 261 (1-2) :295-299

[6]

BARBENI M, 1984, NOUV J CHIM, V8, P547

[7]

Bilanovic D, 1997, WATER SA, V23, P301

[8] CONVERSION OF PHOTOGENERATED SUPEROXIDE ANION INTO HYDROGEN-PEROXIDE IN TIO2 SUSPENSION SYSTEM [J].

CAI, R ;

HASHIMOTO, K ;

FUJISHIMA, A ;

KUBOTA, Y .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1992, 326 (1-2) :345-350

[9] Flow injection method for the rapid determination of Chemical Oxygen Demand based on microwave digestion and chromium speciation in Flame Atomic Absorption Spectrometry [J].

Cuesta, A ;

Todoli, JL ;

Canals, A .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1996, 51 (14) :1791-1800

[10] KINETIC APPROACH TO THE MEASUREMENT OF CHEMICAL OXYGEN-DEMAND WITH AN AUTOMATED MICRO BATCH ANALYZER [J].

DASGUPTA, PK ;

PETERSEN, K .

ANALYTICAL CHEMISTRY, 1990, 62 (04) :395-402

← 1 2 3 →