Photocatalytic degradation of paracetamol on TiO2 nanoparticles and TiO2/cellulosic fiber under UV and sunlight irradiation

被引：163
作者：
Jallouli, Nabil [1 ]
Elghniji, Kais [1 ]
Trabelsi, Hassen [1 ]
Ksibi, Mohamed [1 ]
机构：
[1] Univ Sfax, Lab Eau Energie & Environm LR3E, Ecole Natl Ingenieurs Sfax, Route Soukra Km,POB 1173, Sfax 3038, Tunisia
来源：
ARABIAN JOURNAL OF CHEMISTRY | 2017年 / 10卷
关键词：
TiO2; P25; Photocatalysis; TiO2/cellulosic fiber; Sunlight; Paracetamol; ADVANCED OXIDATION PROCESSES; AQUEOUS-SOLUTIONS; OZONATION; WATER; PHARMACEUTICALS; MINERALIZATION; 4-CHLOROPHENOL; SUSPENSION; CU2+; FE2+;
D O I：
10.1016/j.arabjc.2014.03.014
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In the present study, photocatalytic degradation of acetaminophen ((N-(4-hydroxyphenyl) acetamide)), an analgesic drug has been investigated in a batch reactor using TiO2 P25 as a photocatalyst in slurry and under UV light. Using TiO2 P25 nanoparticles, much faster photodegradation of paracetamol and effective mineralization occurred, more than 90% of 2.65 x 10(-4) M paracetamol was degraded under UV irradiation. Changes in pH values affected the adsorption and the photodegradation of paracetamol. pH 9.0 is found to be the optimum for the photodegradation of paracetamol. HPLC detected hydroquinone, benzoquinone, p-nitrophenol, and 1,2, 4-trihydroxybenzene during the TiO2-assisted photodegradation of paracetamol among which some pathway products are disclosed for the first time. The results showed that TiO2 suspension/UV system is more efficient than the TiO2/cellulosic fiber mode combined to solar light for the photocatalytic degradation of paracetamol. Nerveless the immobilization of TiO2 showed many advantages over slurry system because it can enhance adsorption properties while allowing easy separation of the photocatalyst from the treated solution with improved reusable performance. (C) 2014 King Saud University. Production and hosting by Elsevier B.V.
引用
收藏
页码：S3640 / S3645
页数：6
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