Enhanced photocatalytic activity of metal oxides/β-cyclodextrin nanocomposites for decoloration of Rhodamine B dye under solar light irradiation

被引：27
作者：
Rajalakshmi S. [1 ]
Pitchaimuthu S. [1 ]
Kannan N. [1 ]
Velusamy P. [1 ]
机构：
[1] Centre for Research and Post-Graduate Studies in Chemistry, Ayya Nadar Janaki Ammal College, Sivakasi, 626 124, Tamilnadu
来源：
Applied Water Science | 2017年 / 7卷 / 01期
关键词：
RhB; TiO[!sub]2[!/sub; TiO[!sub]2[!/sub]/β-CD; ZnO; ZnO/β-CD;
D O I：
10.1007/s13201-014-0223-5
中图分类号：
学科分类号：
摘要：
We present the photocatalytic decoloration of Rhodamine B (RhB) dye with the nanocomposites such as TiO2, ZnO, TiO2/β-cyclodextrin (β-CD) and ZnO/β-CD. Band gap energy of nanocomposites was calculated by UV-DRS analysis and the results showed that the band gap energy of ZnO/β-CD nanocomposite is lower than that of other catalysts. The microstructures of the nanocomposites have been characterized by PXRD and FE-SEM analyses. The results showed that crystallinity and surface morphology of metal oxides (MO) (say, TiO2 and ZnO) are not changed in MO/β-CD nanocomposite systems. GC–MS results showed that the photocatalytic decoloration of RhB follows the steps such as N-deethylation, cleavage of chromophore and mineralization of dye. © 2014, The Author(s).
引用
收藏
页码：115 / 127
页数：12
相关论文
共 51 条
[1]  
Alhakimi G., Studnicki L.H., Al-Ghazali M., Photocatalytic destruction of potassium hydrogen phthalate using TiO<sub>2</sub> and sunlight: application for the treatment of industrial wastewater, J Photochem Photobiol A: Chem, 154, 2-3, pp. 219-228, (2003)
[2]  
Aliabadi M., Sagharigar T., Photocatalytic removal of Rhodamine B from aqueous solutions using TiO<sub>2</sub> nanocatalyst, J Appl Environ Biol Sci, 1, 12, pp. 620-626, (2011)
[3]  
Attarchi N., Montazer M., Toliyat T., Ag/TiO<sub>2</sub>/β-CD nano composite: preparation and photo catalytic properties for methylene blue degradation, Appl Catal A: Gen, 467, pp. 107-116, (2013)
[4]  
Beltran-Heredia J., Sanchez-Martin J., Rodriguez-Sanchez M.T., Textile wastewater purification through natural coagulants, Appl Water Sci, 1, 1-2, pp. 25-33, (2011)
[5]  
Chen Y., Wang K., Lou L., Photodegradation of dye pollutants on silica gel supported TiO<sub>2</sub> particles under visible light irradiation, J Photochem Photobiol A: Chem, 163, 1-2, pp. 281-287, (2004)
[6]  
Damardji B., Khalaf H., Duclaux L., David B., Preparation of TiO<sub>2</sub>-pillared montmorillonite as photocatalyst part II—photocatalytic degradation of a textile azo dye, Appl Clay Sci, 45, 1-2, pp. 98-104, (2009)
[7]  
Daneshvar N., Salari D., Khataee A.R., Photocatalytic degradation of azo dye acid red 14 in water: investigation of the effect of operational parameters, J Photochem Photobiol A: Chem, 157, 1, pp. 111-116, (2003)
[8]  
Daneshvar N., Salari D., Khataee A.R., Photocatalytic degradation of azo dye acid red 14 in water: investigation of the effect of operational parameters, J Photochem Photobiol A: Chem, 157, 1, pp. 111-116, (2003)
[9]  
Dlamini L.N., Krause R.W., Kulkarni G.U., Durbach S.H., Photodegradation of bromophenol blue with fluorinated TiO<sub>2</sub> composite, Appl Water Sci, 1, 1-2, pp. 19-24, (2011)
[10]  
Dong B., Li Z., Li Z., Xu X., Song M., Zheng W., Wang C., Al-Deyab S.S., El-Newehy M., Highly efficient LaCoO<sub>3</sub> nanofibers catalysts for photocatalytic degradation of Rhodamine B, J Am Cer Soc, 93, 11, pp. 3587-3590, (2010)
123456