Preparation of γ-Fe2O3/ZnFe2O4 nanoparticles by enhancement of surface modification with NaOH
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- 作者：Longlong Chen ; Jian Li ; Yueqiang Lin ; Xiaodong Liu ; Junming Li…
- 关键词：Nanoparticles ; Composite ; Surface modification ; γ ; Fe2O3 ; ZnFe2O4
- 刊名：Chemistry Central Journal
- 出版年：2014
- 出版时间：December 2014
- 年：2014
- 卷：8
- 期：1
- 全文大小：451 KB
- 参考文献：1. Willard, MA, Kurihara, LK, Carpenter, EE, Calvin, S, Harris, VG (2004) Chemically prepared magnetic nanoparticles. Int Mater Rev 49: pp. 125-170 CrossRef
2. Murray, CB, Kagan, CR, Bawendi, MG (2000) Synthesis and characterization of monodisperse nanocrystals and close-packed nanocrystal assemblies. Annu Rev Mater 30: pp. 545-610 CrossRef
3. Szabó, DV, Vollath, D (1999) Nanocomposites from coated nanoparticles. Adv Mater 11: pp. 1313-1316 CrossRef
4. Reddy, LH, Arias, JL, Nicolas, J, Couvreur, P (2012) Magnetic nanoparticles: design and characterization, toxicity and biocompatibility, pharmaceutical and biomedical applications. Chem Rev 112: pp. 5818-5878 CrossRef
5. Sun, SH (2006) Recent advances in chemical synthesis, self-assembly, and applications of FePt nanoparticles. Adv Mater 18: pp. 393-403 CrossRef
6. Nogués, J, Sort, J, Langlais, V, Skumryev, V, Suri?ach, S, Mu?oz, JS, Baró, MD (2005) Exchange bias in nanostructures. Phys Rep 422: pp. 65-117 CrossRef
7. Cushing, BL, Kolesnichenko, VL, O'Connor, CJ (2004) Recent advances in the liquid-phase syntheses of inorganic nanoparticles. Chem Rev 104: pp. 3893-3946 CrossRef
8. Zhang, QM, Li, J, Lin, YQ, Liu, XD, Miao, H (2010) The preparation and characterization of Ni-Fe bioxide composite nanoparticles. J Alloy Compd 508: pp. 396-399 CrossRef
9. Miao, H, Li, J, Lin, Y, Liu, X, Zhang, Q, Fu, J (2011) Characterization of γ-Fe2O3 nanoparticles prepared by transformation of α-FeOOH. Chin Sci Bull 56: pp. 2383-2388 CrossRef
10. Wen, BC, Li, J, Lin, YQ, Liu, XD, Fu, J, Miao, H, Zhang, QM (2011) A novel preparation method for γ-Fe2O3 nanoparticles and their characterization. Mater Chem Phys 128: pp. 35-38 CrossRef
11. Chen, LL, Li, J, Lin, YQ, Liu, XD, Lin, LH, Li, DC (2013) Surface modification and characterization of γ-Fe2O3 nanoparticles synthesized by chemically-induced transition. Mater Chem Phys 141: pp. 828-834 CrossRef
12. Narayanaswamy, A, Xu, HF, Pradhan, N, Peng, XG (2006) Crystalline nanoflowers with different chemical compositions and physical properties grown by limited ligand protection. Angew Chem Int Ed 45: pp. 5361-5364 CrossRef
13. Seals, R, Alexander, R, Taylor, LT, Dillard, JG (1973) Core electron binding energy study of group IIb-VIIa compounds. Inorg Chem 12: pp. 2485-2487 CrossRef
14. Arulmurugan, R, Vaidyanathan, G, Sendhilnathan, S, Jeyadevan, B (2005) Co-Zn ferrite nanoparticles for ferrofluid preparation: Study on magnetic properties. Physica B 363: pp. 225-231 CrossRef
15. Tanuma, S, Powell, CJ, Penn, DR (1991) Calculations of Electron Inelastic Mean Free Paths III. Data for 15 Inorganic Compounds over the 50-2000?eV Range. Surf Interface Anal 17: pp. 927-939 CrossRef
16. Srnová-?loufová, I, Vl?ková, B, Bastl, Z, Hasslett, TL (2004) Bimetallic (Ag)Au nanoparticles prepared by the seed growth method: Two-dimensional assembling, characterization by energy dispersive X-ray analysis, X-ray photoelectron spectroscopy, and surface enhanced Raman spectroscopy, and proposed mechanism of growth. Langmuir 20: pp. 3407-3415- 刊物类别：Chemistry and Materials Science
- 出版者：Chemistry Central Ltd
- ISSN：1752-153X
文摘
Background During liquid-phase synthesis of γ-Fe2O3 nanoparticles by chemically induced transition in FeCl2 solution, enhancement of surface modification by adding ZnCl2 was attempted by using NaOH. By using transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectrometry, and vibrating sample magnetometry, the dependence of the synthesis on the amount of additional NaOH was studied. Results The experimental results show that the surface of the γ-Fe2O3 nanoparticles could be modified by adding ZnCl2 to form composite nanoparticles with γ-Fe2O3/ZnFe2O4 ferrite core coated with Zn(OH)2 and adsorbed FeCl3, and that modification could be enhanced by adding NaOH. Conclusions In the experimental conditions, when the concentration of additional NaOH was below 0.70?M, the amounts of ZnFe2O4 and Zn(OH)2 phases increased slightly and that of adsorbed FeCl3 was unchanged. When the concentration of NaOH exceeded 0.70?M, the amount of FeCl3, ZnFe2O4, and Zn(OH)2 increased.