Enhanced Photocatalytic Properties of ZnO Nanoparticles for the Degradation of Rhodamine B
Abstract
This study investigates the photocatalytic properties of hydrothermally synthesized ZnO nanoparticles for the degradation of RhB. The structural and morphological properties of the product have been characterized by XRD, EDS, SEM and TEM. Structural measurements reveal that single crystalline nanoparticles in the range of 9 to 130 nm are formed. The elemental composition is analyzed by EDX. The photocatalytic properties demonstrate that the ZnO nanoparticles stand an active photocatalyst which completely degrade RhB in 30 min. Therefore ZnO nanoparticles may have significant implications for degradation of organic contaminants and for the environment remediation.References
References
. T.J. Whang, M.-T. Hsieh and H.H. Chen, “Visible light
photocatalytic degradation of methylene blue with laser induced
Ag/ZnO nanoparticlesâ€, Appl. Surf. Sci. vol. 258, pp. 2796-2801,
. N. K. Janjua, M. Mumtaz, A. Yaqub, S. Sabahat and A. Mujtaba,
“Electrocatalytic activity of LiNiPO4 and the copper doped
analogues towards oxygen reduction†The Nucleus, vol. 51,
pp. 109-115, 2014.
. S. Adil, A. Mashiatullah, M. Asma, A. Ghaffar, S. Khan and
J. Abid, “Adsorption of heavy metals by bio-chars produced from
pyrolysis of paper mulberry from simulated industrial
wastewaterâ€, The Nucleus, vol. 51, pp. 323-327, 2014.
. S.A. Ansari, A. Nisar, B. Fatma, W. Khan and A.H. Naqvi,
“Investigation on structural, optical and dielectric properties of
Co doped ZnO nanoparticles synthesized by gel-combustion
routeâ€, Mater. Sci. Eng. B, vol. 177, pp. 428-435, March 2012.
. W. Lu, S. Gao and J. Wang, “One-pot synthesis of Ag/ZnO selfassembled 3D hollow microspheres with enhanced photocatalytic
performanceâ€, J. Phys. Chem. C, vol. 112, pp.16792-16800,
October 2008.
. R. Georgekutty, M.K. Seery and S.C. Pillai, “A highly efficient
Ag-ZnO photocatalyst: synthesis, properties, and mechanismâ€
J. Phys. Chem. C, vol. 112, pp.13563-13570, 2008.
. M. Afzaal, M.A. Malik and P. O’Brien, “Preparation of zinc
containing materialsâ€, New J. Chem., vol. 31, pp. 2029-2040,
. T.J. Kuo, C.N. Lin, C.L. Kuo and M.H. Huang, “Growth of ultra
long ZnO nanowires on silicon substrates by vapor transport and
their use as recyclable photocatalystsâ€, Chem. Mater., vol. 19,
pp. 5143-5147, 2007.
. M. Hussain, M. Ahmad, A. Nisar, H. Sun, S. Karim, K. Maaz,
S.D. Khan, M. Iqbal and S. Z. Hussain, “Enhanced photocatalytic
and electrochemical properties of Au nanoparticles supported
TiO2 microspheresâ€, New J. Chem., vol. 38, pp. 1424-1432, 2014.
. X. Liu, J. Zhang, L. Wang, T. Yang, X. Guo, S. Wu and S. Wang,
“3D hierarchically porous ZnO structures and their
functionalization by Au nanoparticles for gas sensorsâ€, J. Mater.
Chem., vol. 21, pp. 349-356, 2011.
. Z. W. Pang, Z.R. Dai and Z. L. Wang, "Nanobelts of
semiconducting oxidesâ€, Science, vol. 291, pp. 1947-1949,
March 2001.
. L. Bahadur and T.N. Rao, “Photoelectrochemical investigations
on particulate ZnO thin film electrodes in non-aqueous solventsâ€,
J. Photochem. Photobiol. A, vol. 91, pp. 233-240, November
. J.B. Norris, J. Anderson, J.F. Wager and D.A. Keszler, “Spincoated zinc oxide transparent transistorsâ€, J. Phys. D: Appl.
Phys., vol. 36, pp. 105-107, October 2003.
. J-B Lee, H-J. Lee, S-H. Seo and J-S. Park, “Characterization of
undoped and Cu-doped ZnO films for surface acoustic wave
applicationsâ€, Thin Solid Films, vol. 398, pp. 641-646, 2001.
. S. Sakthivel, B. Neppolian, M.V. Shankar, B. Arabindoo,
M. Palanichamy and V. Murugesan, “Solar photocatalytic
degradation of azo dye: comparison of photocatalytic efficiency
of ZnO and TiO2â€, Sol. Energy Mater. Sol. C., vol. 77, pp. 65-82,
April 2003.
. J. Das and D. Khushalani, “Nonhydrolytic route for synthesis of
ZnO and its use as a recyclable photocatalystâ€, J. Phys. Chem.
C vol. 114, pp. 2544-2550, January 2010.
. Y.H. Zheng, C.Q. Chen, Y.Y. Zhan, X.Y. Lin, Q. Zheng,
K.M. Wei, J.F. Zhu and Y.J. Zhu, “Luminescence and
photocatalytic activity of ZnO nanocrystals: Correlation between
structure and propertyâ€, Inorg. Chem., vol. 46, pp. 6675-6682,
July 2007.
. B. Li and Y. Wang, “Facile synthesis and enhanced
photocatalytic performance of flower-like ZnO hierarchical
microstructuresâ€, J. Phys. Chem. C, vol. 114, pp. 890-896, 2010.
. H. Lu, S. Wang, Li Zhao, J. Li, B. Dong and Z. Xu, “Hierarchical
ZnO microarchitectures assembled by ultrathin nanosheets:
hydrothermal synthesis and enhanced photocatalytic activityâ€,
J. Mater. Chem., vol. 21, pp. 4228-4234, February 2011.
. S.A. Ansari, M. M. Khan, J. Lee and M.H. Cho, “Highly visible
light active Ag-ZnO nanocomposites synthesized by gelcombustion routeâ€, J. Ind. Engg. Chem., vol. 20, pp. 1602-1607,
July 2014.
