Heterogeneous photocatalytic degradation of ethylene glycol and propylene glycol

被引：18
|
作者：
Kim, Kyung Nam [1 ]
Hoffmann, Michael R. [1 ]
机构：
[1] CALTECH, WM Keck Lab, Pasadena, CA 91125 USA
来源：
KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2008年 / 25卷 / 01期
关键词：
ethylene glycol; metal loaded photocatalyst; oxidation; photocatalysis; photocatalytic activity; propylene glycol; TiO2;
D O I：
10.1007/s11814-008-0015-4
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The photocatalytic decomposition of ethylene glycol and propylene glycol was investigated by using UV-illuminated TiO2 and metal-loaded TiO2 catalysts. The effects of pH, initial concentration, and wavelength of light on the decomposition rate of the glycols were explored. Platinum- and palladium-loaded TiO2 catalysts enhanced the rates of photodecomposition compared to unloaded TiO2. The glycols were oxidized primarily to carbon dioxide and water. Formaldehyde was found to be an important reaction intermediate. A detailed chemical reaction mechanism for the destruction of ethylene glycol and propylene glycol in water via free radical pathway and trapped bole reactions at the particle surface is proposed.
引用
收藏
页码：89 / 94
页数：6
相关论文
共 50 条
  • [1] Heterogeneous photocatalytic degradation of ethylene glycol and propylene glycol
    Kyung Nam Kim
    Michael R. Hoffmann
    Korean Journal of Chemical Engineering, 2008, 25 : 89 - 94
  • [2] Degradation of poly(ethylene glycol-propylene glycol) copolymer and its influences on copper electrodeposition
    Choe, Seunghoe
    Kim, Myung Jun
    Kim, Hoe Chul
    Lim, Taeho
    Park, Kyung Ju
    Kim, Kwang Hwan
    Ahn, Sang Hyun
    Lee, Anna
    Kim, Soo-Kil
    Kim, Jae Jeong
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2014, 714 : 85 - 91
  • [3] DIFFUSION COEFFICIENTS OF ETHYLENE GLYCOL AND CYCLOHEXANOL IN SOLVENTS ETHYLENE GLYCOL, DIETHYLENE GLYCOL, AND PROPYLENE GLYCOL AS A FUNCTION OF TEMPERATURE
    MITCHELL, DD
    MOORE, JW
    WELLEK, RM
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1971, 16 (01): : 57 - &
  • [4] SYNTHESES OF (1) GLYCEROL AND PROPYLENE GLYCOL FROM PROPYLENE, AND (2) ETHYLENE GLYCOL FROM ETHYLENE
    NEWITT, DM
    MENE, PS
    JOURNAL OF THE CHEMICAL SOCIETY, 1946, (FEB): : 97 - 100
  • [5] DETERMINATION OF 1,2-PROPYLENE GLYCOL IN ETHYLENE GLYCOL
    BAUMEL, IM
    ANALYTICAL CHEMISTRY, 1954, 26 (05) : 930 - 931
  • [6] Smart hydrogels with ethylene glycol propylene glycol pendant chains
    Z. Rogic Miladinovic
    M. Micic
    A. Mrakovic
    E. Suljovrujic
    Journal of Polymer Research, 2018, 25
  • [7] ETHYLENE GLYCOL AND PROPYLENE GLYCOL ETHERS - REPRODUCTIVE AND DEVELOPMENTAL TOXICITY
    Starek-Swiechowicz, Beata
    Starek, Andrzej
    MEDYCYNA PRACY, 2015, 66 (05) : 725 - 737
  • [8] DETERMINATION OF 1,2-PROPYLENE GLYCOL IN ETHYLENE GLYCOL
    REINKE, RC
    LUCE, EN
    INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1946, 18 (04): : 244 - 245
  • [9] Plasticization of polylactide with block copolymers of ethylene glycol and propylene glycol
    Kowalczyk, Marcin
    Pluta, Miroslaw
    Piorkowska, Ewa
    Krasnikova, Nelli
    JOURNAL OF APPLIED POLYMER SCIENCE, 2012, 125 (06) : 4292 - 4301
  • [10] A review of the comparative mammalian toxicity of ethylene glycol and propylene glycol
    LaKind, JS
    McKenna, EA
    Hubner, RP
    Tardiff, RG
    CRITICAL REVIEWS IN TOXICOLOGY, 1999, 29 (04) : 331 - 365
12345