Facile synthesis of PANI-modified CoFe2O4–TiO2 hierarchical flower-like nanoarchitectures with high photocatalytic activity
Source abstract
Abstract
Polyaniline-modified CoFe2O4–TiO2-nanocomposites (PCT) with hierarchical flower-like nanoarchitectures were successfully synthesized by a facile procedure. The PCT particles with diameters about 420–600 nm possess both nano- and micro-scale structures, and exhibit excellent light absorption properties both under UV and visible light irradiation. Meanwhile, it shows a dramatic enhancement of photocatalytic activity compared with corresponding PANI–CoFe2O4 and CoFe2O4–TiO2 samples. The excellent photoactivity of PCT can be attributed to the synergistic effect of PANI, TiO2, and CoFe2O4 in the ternary system, which leads to a rapid charge separation and slow charge recombination thereby resulting in a higher photocatalytic activity. In addition, the ferromagnetic properties of CoFe2O4 are maintained in the PCT composite to some extent, which can facilitate their separation from the liquid phase via application of an external magnetic field. Therefore, PCT nanocomposites are promising candidates for the effective photocatalytic treatment of wastewater.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Conducting polymers and applications · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Álvareza PM, Jaramilloa J, López-Pineroa F, Plucinski PK (2010) Preparation and characterization of magnetic TiO2 nanoparticles and their utilization for the degradation of emerging pollutants in water. Appl Catal B 100:338–34510.1016/j.apcatb.2010.08.010 ↗
2. Ao YH, Xu JJ, Fu DG, Ba L, Yuan CW (2008) Deposition of anatase titania onto carbon encapsulated magnetite nanoparticles. Nanotechnology 19:405604 (6pp)
3. Ao YH, Xu JJ, Fu DG, Yuan CW (2009) Photocatalytic degradation of X-3B by titania-coated magnetic activated carbon under UV and visible irradiation. J Alloy Compd 471:33–3810.1016/j.jallcom.2008.04.001 ↗
4. Beydoun D, Amal R (2002) Implications of heat treatment on the properties of a magnetic iron oxide-titania dioxide photocatalyst. Mater Sci Eng B 94:71–8110.1016/S0921-5107(02)00085-5 ↗
5. Beydoun D, Amal R, Low G, McEvoy S (2000) Novel photocatalyst: titania-coated magnetite: activity and photodissolution. J Phys Chem B 104:4387–439610.1021/jp992088c ↗
6. Beydoun D, Amal R, Low GKC, McEvoy S (2002) Occurrence and prevention of photodissolution at the phase junction of magnetite and titania dioxide. J Mol Catal A 180:193–20010.1016/S1381-1169(01)00429-0 ↗
7. Buonsanti R, Grillo V, Carlino E, Giannini C, Gozzo F, Hernandez M, Garcia MA, Cingolan OR, Cozzoli PD (2010) Architectural control of seeded-grown magnetic semicondutor iron oxide TiO2 nanorod heterostructures: the role of seeds in topology selection. J Am Chem Soc 132:2437–246410.1021/ja910322a ↗
8. Chung YS, Park SB, Kang D (2004) Magnetically separable titania-coated nickel ferrite photocatalyst. Mater Chem Phys 86:375–38110.1016/j.matchemphys.2004.03.027 ↗
9. Fu WY, Yang HB, Li MH, Yang N, Zou GT (2005) Anatase TiO2 nanolayer coating on cobalt ferrite nanoparticles for magnetic photocatalyst. Mater Lett 59:3530–353410.1016/j.matlet.2005.06.071 ↗
10. Fujishima A, Zhang X, Tryk DA (2007) Heterogeneous photocatalysis: from water photolysis to applications in environmental cleanup. Inter J Hydrogen Energy 32:2664–267210.1016/j.ijhydene.2006.09.009 ↗
11. Ge SX, Zhao K, Zhang LZ (2012) Microstructure-dependent photoelectrochemical and photocatalytic properties of BiOI. J Nanopart Res 14:1015–102510.1007/s11051-012-1015-1 ↗
12. Goh SC, Chia CH, Zakaria S, Yusoff M, Haw CY, Ahmadi S, Huang NM, Lim HN (2010) Hydrothermal preparation of high saturation magnetization and coercivity cobalt ferrite nanocrystals without subsequent calcinations. Mater Chem Phys 120:31–3510.1016/j.matchemphys.2009.10.016 ↗
13. Jackson SD, Hargreaves JSJ (2009) Metal Oxide Catalysis. Wiley-VCH Verlag GmbH & Co, KGaA, Weinheim
14. Knozinger H, Kochioefl K, Turek T (2009) Heterogeneous catalysis and solid catalysts. Wiley-VCH Verlag GmbH & Co, KGaA, Weinheim
15. Leng CJ, Wei JH, Liu ZY, Shi J (2011) Influence of imidazolium-based ionic liquids on the performance of polyaniline–CoFe2O4 nanocomposites. J Alloys Compd 509:3052–305610.1016/j.jallcom.2010.11.197 ↗
16. Li HS, Zhang YP, Wang SY, Wu Q, Liu CH (2009) Study on nanomagnet supported TiO2 photocatalysts prepared by a sol–gel process in reverse microemulsion combining with solvent-thermal technique. J Hazard Mater 169:1045–105310.1016/j.jhazmat.2009.04.040 ↗
17. Li CJ, Wang JN, Wang B, Gong JR, Lin Z (2012) A novel magnetically separable TiO2–CoFe2O4 nanofiber with high photocatalytic activity under UV–Vis light. Mater Res Bull 47:333–33710.1016/j.materresbull.2011.11.012 ↗
18. Liang HC, Li XZ (2009) Visible-induced photocatalytic reactivity of polymer–sensitized titania nanotube films. Appl Catal B 86:8–1710.1016/j.apcatb.2008.07.015 ↗
19. Liu L, Liu HJ, Zhao YP, Wang YQ, Duan YQ, Gao GD, Ge M, Chen W (2008a) Directed synthesis of hierarchical nanostructured TiO2 catalysts and their morphology-dependent photocatalysis for phenol degradation. Environ Sci Technol 42:2342–234810.1021/es070980o ↗
20. Liu Q, Sun JH, Long HR, Sun XQ, Zhong XJ, Xu Z (2008b) Hydrothermal synthesis of CoFe2O4 nanoplatelets and nanoparticles. Mater Chem Phys 108:269–27310.1016/j.matchemphys.2007.09.035 ↗
21. Nabid MR, Golbabaee M, Moghaddam AB, Dinarvand R, Sedghi R (2008) Polyaniline-TiO2 nanocomposite: enzymatic synthesis and electrochemical properties. Int J Electrochem Sci 3:1117–112610.1016/S1452-3981(23)15508-8 ↗
22. Nasonova A, Kim DJ, Kim WS, Kim KS (2008) Simultaneous removal of NO and SO2 in a plasma reactor packed with TiO2-coated glass beads. Res Chem Intermed 34:309–33110.1163/156856708784040597 ↗
23. Ng JW, Xu SP, Zhang XW, Yang HY, Sun DD (2010) Hybridized nanowires and cubes: a novel architecture of a heterojunctioned TiO2–SrTiO3 thin film for efficient water splitting. Adv Funct Mater 20:4287–429410.1002/adfm.201000931 ↗
24. Qi F, Moiseev A, Deubener J, Weber A (2011) Thermostable photocatalytically active TiO2 anatase nanoparticles. J Nanopart Res 13:1325–133410.1007/s11051-010-0211-0 ↗
25. Sing KSW, Everett DH, Haul RAW, Moscou L, Pierotti RA, Rouquerol J, Siemieniewska T (1985) Reporting physisorption data for gas-solid systems with special reference to the determination of surface area and porosity. Pure Appl Chem 57:603–60710.1351/pac198557040603 ↗
26. Somani PR, Marimuthu R, Mulik UP, Sainkar SR (1999) High piezoresistivity and its origin in conducting polyaniline–TiO2 composites. Synth Met 106:45–5210.1016/S0379-6779(99)00081-8 ↗
27. Wei JH, Zhang Q, Liu Y, Xiong R, Pan CX, Shi J (2011) Synthesis and photocatalytic activity of polyaniline–TiO2 composite with bionic nanopapilla structure. J Nanopart Res 13:3157–316510.1007/s11051-010-0212-z ↗
28. Xia HS, Wang Q (2002) Ultrasonic irradiation: a novel approach to prepare conductive polyaniline nanocrystalline- titania oxide composites. Chem Mater 14:2158–216510.1021/cm0109591 ↗
29. Xiong P, Chen Q, He MY, Sun XQ, Wang X (2012) Cobalt ferrite–polyaniline heteroarchitecture: a magnetically recyclable photocatalyst with highly enhanced performances. J Mater Chem 22:17485–1749310.1039/c2jm31522j ↗
30. Xu H, Jia FL, Ai ZH, Zhang LZ (2007) A general soft interface platform for the growth and assembly of hierarchical rutile TiO2 nanorods spheres. Cryst Growth Des 7:1216–121910.1021/cg0609419 ↗
31. Xu SH, Shangguan WF, Yuan J, Chen MX, Shi JW, Jiang Z (2008) Synthesis and performance of novel magnetically separable nanospheres of titania dioxide photocatalyst with egg-like structure. Nanotechnology 19: 095606 (7 pp)10.1088/0957-4484/19/9/095606 ↗
32. Yu JG, Wang WG, Cheng B, Shu BL (2009) Enhancement of photocatalytic activity of mesporous TiO2 powders by hydrothermal surface fluorination treatment. J Phys Chem C 113:6743–675010.1021/jp900136q ↗
33. Zhang H, Zong RL, Zhao JC, Zhu YF (2008) Dramatic Visible photocatalytic degradation performances due to synergetic effect of TiO2 with PANI. Environ Sci Technol 42:3803–380710.1021/es703037x ↗
34. Zhang W, Zou LD, Wang LZ (2009) Photocatalytic TiO2-adsorbent nanocomposites prepared via wet chemical impregnation for wastewater treatment: a review. Appl Catal A 371:1–910.1016/j.apcata.2009.09.038 ↗
35. Zhang H, Lv XJ, Li YM, Wang Y, Li JH (2010a) P25-graphene composite as a high performance photocatalyst. ACS Nano 4:380–38610.1021/nn901221k ↗
36. Zhang Y, Fei CL, Liu Y, Wang RJ, Yan GL, Xiong R, Shi J (2010b) The effect of surface modification on the magnetic properties of CoFe2O4 nano-particles synthesized by the hydrothermal method. J Nanosci Nanotechnol 10:6395–639910.1166/jnn.2010.2518 ↗
37. Zhu SM, Zhang D, Chen ZX, Zhou G, Jiang HB, Li JL (2010) Sonochemical fabrication of morpho-genetic TiO2 with hierarchical structures for photocatalyst. J Nanopart Res 12:2445–245610.1007/s11051-009-9807-7 ↗