Physical Chemistry
p-ISSN: 2167-7042 e-ISSN: 2167-7069
2017; 7(1): 8-16
doi:10.5923/j.pc.20170701.02
Giang H. Le1, Quyet T. Ngo1, Tuan T. Nguyen1, 2, Quang K. Nguyen1, Trang T. T. Quan1, Tuan A. Vu1, 2
1Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam
2Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam
Correspondence to: Tuan A. Vu, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam.
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The CuFe2O4/Graphene oxide (GO) composite was successfully synthesized by co-precipitation in “situ” using FeCl3.6H2O and CuCl2.2H2O as iron and copper sources on GO and followed by thermal reduction. The product was characterized by XRD, XPS, TEM, BET and FTIR. From the XRD and XPS results, it reveals the formation of copper ferrites spinel CuFe2O4 on GO surface. From TEM images, it showed that CuFe2O4/GO composite has particle size of 20-30 nm and uniform size distribution. The as-prepared CuFe2O4/GO nano composite was used to test the photocatalytic degradation of phenol from aqueous solution. After 90 minutes of reaction, the conversion (calculated according COD) reached to the value of 90%, indicating highly photocatalytic activity of this catalyst. Moreover, after three recycles, the photocatalytic activity was almost unchanged as compared to that of fresh catalyst, indicating the relatively high stability and it can be reused. Additionally, this CuFe2O4/GO composite showed highly magnetic property so it can be easily recovered by applying the magnetic field out side.
Keywords: Nanocomposite CuFe2O4/GO, Simulated sun-light irradiation, Photocatalytic phenol degradation
Cite this paper: Giang H. Le, Quyet T. Ngo, Tuan T. Nguyen, Quang K. Nguyen, Trang T. T. Quan, Tuan A. Vu, Highly Photocatalytic Activity of Novel CuFe2O4/GO Nano Composite in the Degradation of Phenol from Aqueous Solution, Physical Chemistry, Vol. 7 No. 1, 2017, pp. 8-16. doi: 10.5923/j.pc.20170701.02.
Figure 1. XRD patterns of CuFe2O4/GO (a); GO (b) and (c) FT-IR spectra of CuFe2O4/GO |
Figure 2. TEM images (a) and EDX spectra (b) of CuFe2O4/GO |
Figure 3. Magnetization curve of CuFe2O4/GO |
Figure 4. N2 adsorption – desorption isotherms of CuFe2O4/GO (a) and GO (b) |
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Figure 5. XPS spectra of CuFe2O4/GO |
Figure 6. Effect of catalyst concentration on degradation of phenol, [Phenol] = 100 mg/L, [H2O2]= 136 mg/L pH = 3; T = 303 K |
Figure 7. Influence of pH values on phenol degradation over Fe3O4/GO and CuFe2O4/GO composites |
Figure 8. (a) Comparison of the photocatalytic degradation of phenol solution under different conditions. (b) HPLC diagram of phenol degradation over CuFe2O4/GO |