Preparation and Photocatalytic Property of NiO/ZnO Heterostructured Nanofibers

doi:10.3724/SP.J.1077.2013.12202

Abstract

Abstract: Heterostructured NiO/ZnO composite nanofibers were prepared by electrospinning technique employing polyvinyl alcohol (PVA) and Zinc acetate as precursors and then solvothermal growth of NiO nanostructures on as-electrospun ZnO nanofibers substrate. The morphology and structure of NiO/ZnO composite nanofibers were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM) and PL spectra. Photocatalytic activity was tested via rhodamine B (RB) degradation as the model reaction. The results showed that the as-fabricated sample were composed of NiO nanoparticles assembling uniformly on the surface of ZnO nanofibers to form NiO/ZnO heterostructures. Compared with the pure ZnO nanofibers, NiO/ZnO composite nanofibers exhibited enhanced photocatalytic activity in the decomposition of RB under ultraviolet light. This material also shows good catalytic stability and the decolorizing efficiency of RB solution remains as high as 89% after 3 times recycle. Moreover, it is easily separated, removed from the system after reaction and reuse.

Key words: electrospinning technique, solvothermal method, NiO/ZnO composite nanofibers, photocatalytic degradation

CLC Number:

O643

CAO Tie-Ping, LI Yue-Jun, WANG Chang-Hua. Preparation and Photocatalytic Property of NiO/ZnO Heterostructured Nanofibers[J]. Journal of Inorganic Materials, 2013, 28(3): 295-300.

References

[1] Fujishima A, Honda K. Electrochemical photolysis of water at a semiconductor electrode. Nature, 1972, 238(5358): 37–38.

[2] Chen X B, Shen S H, Guo L J, et al. Semiconductor-based photocatalytic hydrogen generation. Chem. Rev., 2010, 110(11): 6503–6570.

[3] Du S F, Liu H D, Chen Y F. Large-scale preparation of porous ultrathin Ga-doped ZnO nanoneedles from 3D basic zinc carbonate superstructures. Nanotechnology, 2009, 20(8): 085611–085615.

[4] Pirkanniemi K, Sillanpaa M. Heterogeneous water phase catalysis as an environmental application: a review. Chemosphere, 2002, 48(10): 1047–1060.

[5] GUO Xiao-ming, MAO Dong-shen, LU Guan-zhong, et al. CuO-ZnO-ZrO2 by citric acid combustion method and its catalytic property for methanol synthesis from CO2 hydrogenation. Chinese Journal of Chemical Physics, 2012, 28(1): 170–176.

[6] ZHOU Wen-qian, LU Yu-ming, CHEN Chang-zhao, et al．Effect of Li-doped TiO2 compact layers for dye sensitized solar cells. Journal of Inorganic Materials, 2011, 26(8): 819-822．

[7] Cao T P, Li Y J, Shao C L, et al. Fabrication, structure, and enhanced photocatalytic properties of hierarchical CeO2 nanostructures/TiO2 nanofibers heterostructures. Materials Research Bulletin, 2010, 45(10): 1406–1412.

[8] Chu D W, Masuda Y, Ohji T. Formation and photocatalytic application of ZnO nanotubes using aqueous solution. Langmuir, 2010, 26(4): 2811–2815.

[9] Xu F, Zhang P, Navrotsky A, et al. Hierarchically assembled porous ZnO nanoparticles: synthesis, surface energy, and photocatalytic activity. Chem. Mater., 2007, 19: 5680–5686.

[10] Xu J, Chang Y G, Zhang Y Y, et al. Effect of silver ions on the structure of ZnO and photocatalytic performance of Ag/ZnO composites. Appl. Surf. Sci., 2008, 255(5): 1996–1999.

[11] CaoY, Yang W S, Zhang W F, et al. Improved photocatalytic activity of Sn4+ doped TiO2 nanoparticulate films prepared by plasma-enhanced chemical vapor deposition. New J. Chem., 2004, 28: 218–222.

[12] Wang C, Zhao J C, Wang X M, et al. Preparation,characterization and photocatalytic activityof nano-sized ZnO/SnO2 coupled photocatalysts. Appl. Catal. B, 2002, 39: 269–279.

[13] Cho S,Jang J W, Lee J S, et al. Porous ZnO-ZnSe nanocomposites for visible light photocatalysis. Nanoscale, 2012,4(6): 2066–2071.

[14] Yin J, Zang Y S, Yue C,et al. Ag nanoparticle/ZnO hollow nanosphere arrays: large scale synthesis and surface plasmon resonance effect induced Raman scattering enhancement. J. Mater. Chem., 2012,?22(16): 7902–7909.

[15] Cao T P, Li Y J, Shao C L, et al. Three-dimensional hierarchical CeO2 nanowalls/TiO2 nanofibers heterostructure and its high photocatalytic performance. J. Sol-Gel. Sci. Technol., 2010, 55(1): 105–110.

[16] LI Yue-jun, CAO Tie-ping, WANG Chang-hua, et al. In-situ hydrothermal synthesis and enhanced photocatalytic properties of SrTiO3/TiO2 composite nanofibers. Chemical Journal of Chinese Universities, 2011, 32(11): 822–829.

[17] Cao T P, Li Y J, Shao C L, et al. Bi4Ti3O12 nanosheets/TiO2 submicron fibers heterostructures: in situ fabrication and high visible light photocatalytic activity. J. Mater. Chem., 2011, 21(19): 6922–6927.

[18] YU Chang-lin, YANG Kai, YU Jimmy C, et al. Hydrothermal synthesis and photocatalytic performance of Bi2WO6/ZnO heterojunction photocatalysts. Journal of Inorganic Materials, 2011, 6(11): 1157–1163.

[19] Sreethawong T, Suzuki Y, Yoshikawa S. Photocatalytic evolution of hydrogen over mesoporous TiO2 supported NiO photocatalyst prepared by single-step Sol-Gel process with surfactant template. Int. J. Hydrogen Energy, 2005, 30(10): 1053–1062.

[20] Kovalenko A A, Baranov A N, Panin G N. Synthesis of ZnO/NiO nanocomposites from ethanol solutions. Russ. J. Inorg. Chem, 2008, 53(10): 1546–1551.

[21] Aslani A, Arefi M R, Babapoor A, et al. Solvothermal synthesis, characterization and optical properties of ZnO, ZnO-MgO and ZnO-NiO, mixed oxide nanoparticles. Applied Surface Science , 2011, 257(11): 4885–4889.

[22] ZHU Yan-Juan, DENG Shu-Hua, YI Shuang-Ping, et al. Preparation of NiO/SiO2 composite catalysts by hydrothermal methods and its application to carbon nanotubes systhesis. Journal of Inorganic Materials, 2003, 18(6): 1267–1272.

[23] RAN Zhi-Jin, BAI Li-feng, WEI Zhi-qiang, et al. Preparation of NiO nanopowder by confined arc plasma. Rare Metal Materials and Engineering, 2007, 39(3): 484–487.

[24] JING Li-qiang, ZHENG Ying-guang, XU Zi-li, et al. Electronic paramagnetic resonance characteristics of ZnO ultrafine particles and their photocatalytic performance. Chemical Journal of Chinese Universities, 2001, 22(11): 1885–1888.

[25] LIU Shou-xin, LIU Hong. Basic and Application of Photocatalytic and Photoelectrocatalytic. Beijing: Chemical Industry Press, 2006．

[26] DENG Qian, Li Ming, Cai Qing, et al. Preparation of rare earth/titanium dioxide catalysts and photocatalytic elimination of gaseous pollutant. Journal of the Chinese Society of Rare Earths, 2011, 29(2): 170–177.