Investigation of photocatalytic degradation of clindamycin antibiotic by using nano-ZnO catalysts

被引:39
作者
Farzadkia, Mahdi [1 ]
Rahmani, Kourosh [1 ]
Gholami, Mitra [1 ]
Esrafili, Ali [1 ]
Rahmani, Ayat [2 ,3 ]
Rahmani, Hassan [4 ]
机构
[1] Iran Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Tehran, Iran
[2] ShahidBeheshti Univ Med Sci, Sch Hlth, Dept Environm Hlth Engn, Tehran, Iran
[3] Baghiyatollah AS Univ Med Sci, Fac Hlth, Dept Environm Hlth Engn, Tehran, Iran
[4] Ahvaz Jondishapoor Med Sci Univ, Sch Hlth, Dept Environm Hlth Engn, Ahvaz, Iran
关键词
Clindamycin; Degradation; Photocatalytic; ZnO Nanoparticles; AQUEOUS-SOLUTION; WATER; PHOTODEGRADATION; ADSORPTION; CARBON; DYES;
D O I
10.1007/s11814-014-0119-y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The photocatalytic degradation of clindamycin (CLM) was studied by a batch reactor using UV irradiation and ZnO catalyst. The effects of several parameters such as pH, catalyst loading, light intensity and irradiation time were evaluated in the removal process. The results showed that the degradation of CLM was effective in alkaline conditions. The optimum catalyst loading in an aqueous solution containing 25 mM of CLM and UV lamp of 50 W was observed at 3.0 g/L of catalyst loading. The process followed pseudo-first order kinetics, and the apparent rate constant (k) decreased with increasing the initial concentration of CLM. The photocatalytic process had higher removal efficiency in synthetic than actual wastewater in optimum conditions.
引用
收藏
页码:2014 / 2019
页数:6
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