Photocatalytic Degradation of an Odorous Pollutant: 2-Mercaptobenzothiazole in Aqueous Suspension Using Nd3+−TiO2 Catalysts

Autor:	Xz Z. Li, Fb B. Li, K. H. Ng
Rok vydání:	2005
Předmět:	Aqueous solution General Chemical Engineering Inorganic chemistry Ion chromatography General Chemistry Industrial and Manufacturing Engineering Catalysis Ion chemistry.chemical_compound Benzothiazole chemistry Photocatalysis Degradation (geology) Ammonium
Zdroj:	Industrial & Engineering Chemistry Research. 45:1-7
ISSN:	1520-5045 0888-5885
Popis:	Photocatalytic degradation of an odorous chemical, 2-mercaptobenzothiazole (MBT), in aqueous suspension was investigated using pure TiO2 and neodymium ion doped TiO2 (Nd3+−TiO2) catalysts. The photocatalytic activity of Nd3+−TiO2 was evaluated in the photocatalytic degradation of MBT in aqueous solution. The experimental results showed that the overall kinetic constant (k) of MBT degradation using Nd3+−TiO2 was significantly higher than that using TiO2 and an optimal content of neodymium ion doping was found to be 1.2% (molar ratio). The main intermediates during the MBT degradation were identified by LC/MS−MS, and the final products including sulfate ion, ammonium ion, and nitrate ion were also determined by ion chromatography. Only three main intermediates including benzothiazole, 2-hydroxybenzothiazole, and benzothiazole-2-sulfite were found during the MBT degradation using the TiO2 catalyst, while five main intermediates including benzothiazole, 2-hydroxybenzothiazole, benzothiazole-2-sulfonate, benzo...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d7a37f1fd10234c9c2082b66ee733345 https://doi.org/10.1021/ie050139o Zobrazit plný text záznamu