A New Mechanism of the Selective Photodegradation of Antibiotics in the Catalytic System Containing TiO2 and the Inorganic Cations

被引:9
作者
Baran, Wojciech [1 ]
Cholewinski, Mateusz [1 ]
Sobczak, Andrzej [1 ]
Adamek, Ewa [1 ]
机构
[1] Med Univ Silesia, Fac Pharmaceut Sci Sosnowiec, Dept Gen & Analyt Chem, Jagiellonska 4, PL-41200 Sosnowiec, Poland
关键词
molecular mechanism; photocatalysis; sulfonamides; free radicals; TiO2; ACTIVATED PERSULFATE OXIDATION; PHOTOCATALYTIC DEGRADATION; SULFA DRUGS; AQUATIC ENVIRONMENT; WASTE-WATER; KINETICS; SULFONAMIDES; PHOTOLYSIS; COMPLEXES; RADICALS;
D O I
10.3390/ijms22168696
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The mechanism of sulfisoxazole (SFF) selective removal by photocatalysis in the presence of titanium (IV) oxide (TiO2) and iron (III) chloride (FeCl3) was explained and the kinetics and degradation pathways of SFF and other antibiotics were compared. The effects of selected inorganic ions, oxygen conditions, pH, sorption processes and formation of coordination compounds on the photocatalytic process in the presence of TiO2 were also determined. The Fe3+ compounds added to the irradiated sulfonamide (SN) solution underwent surface sorption on TiO2 particles and act as acceptors of excited electrons. Most likely, the SFF degradation is also intensified by organic radicals or cation organic radicals. These radicals can be initially generated by reaction with electron holes, hydroxyl radicals and as a result of electron transfer mediated by iron ions and then participate in propagation processes. The high sensitivity of SFF to decomposition caused by organic radicals is associated with the steric effect and the high bond polarity of the amide substituent.
引用
收藏
页数:28
相关论文
共 86 条
[51]  
Luo T, 2019, ENVIRON SCI-PROC IMP, V21, P1560, DOI [10.1039/C9EM00254E, 10.1039/c9em00254e]
[52]   Oxidation of Sulfonamides in Aqueous Solution by UV-TiO2-Fe(VI) [J].
Ma, Yan ;
Zhang, Kejia ;
Li, Cong ;
Zhang, Tuqiao ;
Gao, Naiyun .
BIOMED RESEARCH INTERNATIONAL, 2015, 2015
[53]   Teaching the fundamentals of electron transfer reactions in mitochondria and the production and detection of reactive oxygen species [J].
Mailloux, Ryan J. .
REDOX BIOLOGY, 2015, 4 :381-398
[54]   ISOXAZOLES .2. KINETICS AND MECHANISM OF DEGRADATION OF SULFISOXAZOLE IN MODERATELY CONCENTRATED ACIDS [J].
MANZO, RH ;
MARTINEZ.M .
JOURNAL OF PHARMACEUTICAL SCIENCES, 1973, 62 (01) :154-158
[55]   Free-radical-induced oxidative and reductive degradation of sulfa drugs in water: Absolute kinetics and efficiencies of hydroxyl radical and hydrated electron reactions [J].
Mezyk, Stephen P. ;
Neubauer, Thomas J. ;
Cooper, William J. ;
Peller, Julie R. .
JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 111 (37) :9019-9024
[56]   Powder semiconductor photocatalysis in aqueous solution: An overview of kinetics-based reaction mechanisms [J].
Mills, Andrew ;
O'Rourke, Christopher ;
Moore, Keith .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2015, 310 :66-105
[57]   Adsorption and aggregation of Fe(III)-hydroxy complexes during the photodegradation of phenol using the iron-added-TiO2 combined system [J].
Nahar, Mst. Shamsun ;
Hasegawa, Kiyoshi ;
Kagaya, Shigehiro ;
Kuroda, Shigeyasu .
JOURNAL OF HAZARDOUS MATERIALS, 2009, 162 (01) :351-355
[58]  
Neta P., 1982, NSRDSNBS70
[59]   REACTION OF CH2OH WITH O2, NO, AND NO2 AT ROOM-TEMPERATURE [J].
PAGSBERG, P ;
MUNK, J ;
ANASTASI, C ;
SIMPSON, VJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (13) :5162-5165
[60]  
Pal, 2014, AM J DRUG DISCOV, V1, P10, DOI DOI 10.1016/J.JHAZMAT.2009.10.100