Document Type : Research Article
Authors
1 Department of Chemistry, University of Gour Banga, Malda, West Bengal 732103, India
2 Department of Chemistry, West Bengal State University, Barasat, Kolkata, West Bengal 700126, India
3 Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
Abstract
The Bi2MoZnO7 nanocomposites have been successfully synthesized via co-precipitation and solid state method and followed by a low temperature calcinations treatment process. We find that such a Bi2MoZnO7 nanocomposite exihibits higher photoctatalytic activity and stability than Bi2MoO6, Bi2O3 and ZnO towards the aqueous phase degradation of Rhodamine B (RhB) under visible light (420 nm < λ). The presence of Bi3+/Mo6+/Zn2+ ions in Bi2MoZnO7 and formation of defects in the lattice is believed to play an essential role in affecting the photoreactivity. The different types of active species scavengers are also play the photocatalytic process. The synthesized Bi2MoZnO7 nanocomposites were characterized by UV-Vis spectroscopy, X-ray diffraction (XRD), SEM, TEM, EDAX and IR techniques. The crystallite sizes, particle and grain sizes are 12±2, 5±1 and 100±5 nm, respectively. The rate of degradation of Rhodamine B by BMZ in aqueous phase is 7 times (40.70×10-3min-1) faster in comparison to pure Bi2O3/ZnO. Copyright © 2017 VBRI Press.
Keywords
1–14.
DOI:10.1016/j.seppur.2011.11.034
2.Straub, F, R.; VoyksnerD, R.; Keever, T, J; Anal. Chem., 1993, 65,
2131–2136.
DOI:10.1021/ac00063a034
3.Guillard, C.; Lachheb,H.; Houas,A.; Ksibi,M.; Elaloui, E.;
Herrmann, M-J; J Photochem. Photobiol. A Chem, 2003, 158, 27–
36.
DOI:10.1016/S1010-6030(03)00016-9
4.Patil, S., S.; Shinde,M., V.; Environ. Sci. Technol.,1988,22, 1160.
DOI:10.1021/es00175a005
5.More, T,A.;Vira, A.; Fogel,S; Environ. Sci. Techol.,1989,23,403.
DOI:10.1021/es00181a003
6.Yesiladalı, S.K.; Pekin, G.; Bermek, H; World J
MicrobiolBiotechnol, 2006, 22, 1027.
DOI:10.1007/s11274-005-3207-7
7.Gupta, K, V.;Khamparia, S.; Tyagi, I. ; Jaspal , D. ; A. Malviya,
A;Global J. Environ. Sci. Manage., 2015,1, 71-94.
DOI:10.7508/gjesm.2015.01.007
8.Ghosh, D.; Bhattacharyya, G, K.; Appl. Clay Sci.,2002,20, 295-300.
DOI:10.1016/S0169-1317(01)00081-3
9.Gures ,A.; Karaca ,S.; Dogar ,C.; Bayrak ,R.; Acikyildiz ,M.;
Yalcin, M; J . Colloide Interface Sci., 2004, 269, 310.
DOI: 10.1016/j.jcis.2003.09.004
10.Kuo, S.W.; Ho, H, P; Chemosphere, 2001, 45, 77–83.
DOI:10.1016/S0045-6535(01)00008-X
11.Vaidyanathan, S.; Ryan, R,K.; Eduardo, W. E.; Ind. Eng. Chem.
Res., 2006,45, 2187–2193.
DOI:10.1021/ie050693y
12.Kislov, N.; Lahiri, J.; Verma, H.; Yogi Goswami, D.; Stefanakos,
E.; Batzill, M; Langmuir,2009, 25, 3310.
DOI:10.1021/la803845f
13.Baruah, S.; Jaisai, M.; Imani1,R.; Nazhad, M, M.; Dutta, J; Sci.
Technol. Adv. Mater.,201011, 7.
DOI:10.1088/1468-6996/11/5/055002
14.Zhu, H.; Jiang, R.; Fu, Y.; Guan,Y.; Yao, J.; Guangming Zeng, X.
L.; Desalination, 2012, 286, 41-48.
DOI: 10.1016/j.desal.2011.10.036
15.Qamar, M.; Muneer, M; Desalination, 2009, 249, 535-540.
DOI:10.1016/j.desal.2009.01.022
16.Nirmala, M.; Nair,G, M.; Rekha, K.; Anukaliani, A.; Samdarshi,
K,S.; and Nair, G,R.; African Journal of Basic & App. Sci.,2010, 2,
161-166.
DOI: ajbas/ajbas2(5-6)10/6
17.Houas,A.; Lachheb,H.; Ksibi,M.; Elaloui,E.; Guillard,C.;
Herrmann,M-J; Appl. Catal., B., 2001, 31, 145–157.
DOI:S0926-3373(00)00276-9
18.Zhang, F.; Zhao, J.; Shen, T.; Hidaka, H.; Pelizzetti, E.; Serpone, N;
Appl. Catal. B: Environ.,1998, 15, 147.
DOI:SO926-3373(97)00043-XAcronymCrystallites
Size(nm)
Degradation
rate constant of
Rh B k (x10-3
min-1)
Time
required for
complete
degradation
(min) of Rh60
(min)
140
(min)
Bi2MoZnO7
(BMZ)
12.4240.7045.38140
Bi2MoO615.396.0414.54180
Bi2O3/ZnO15.251.511.44No change
Sci. Technol. 1999, 33, 2081.
DOI:10.1021/es9807643
20.Liu, G.; Li, X.; Zhao, J.; Horikoshi, S.; Hidaka, H.; J. Mol. Catal. A:
Chem.2000,153, 221
DOI:10.1016/S1381-1169(99)00351-9
21.Prasad, K.; Jha, K, A; Natural Science, 2009,1, 129-135.
DOI:10.4236/ns.2009.12016
22.Wang, Z, L; (2008). Nano Res., 2008,1, 1-8.
DOI:10.1007/s12274-008-8003-x
23.Méndez, B.; López-Urías, R, A.; Terrones, M. F.; and Terrones, H;
(2008). NanoRes.,2008, 1, 420-426.
DOI: 10.1007/s12274-008-8042-3
24.Zeng, B.; Chen, X.;Ning, X,;Chen, C.;Hu,A.;Deng.W; Catal.
Commun.,2014,43,235-239.
DOI:10.1016/j.catcom.2013.08.003
)