SIOC 中文
ACS
Adv search

Acta Chimica Sinica >

2020 , Vol. 78 >Issue 9: 954 - 960

DOI: https://doi.org/10.6023/A20060208

Article

Multifunctional Fe3O4@SiO2Janus Particles

  • Zhao Ruotong ,
  • Han Tianhao ,
  • Sun Dayin ,
  • Shan Dan ,
  • Liu Zhengping ,
  • Liang Fuxin
Expand
  • a College of Chemistry, Beijing Normal University, Beijing 100875;
    b Institute of Polymer Science and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084;
    c Sinopec Research Institute of Petroleum Processing, China Petroleum and Chemical Corporation, Beijing 100083;
    d Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100020

Received date: 2020-06-04

  Online published: 2020-07-15

Supported by

Project supported by the National Natural Science Foundation of China (Nos. 51673119, 51622308).

Fold

Abstract

Fe3O4@SiO2 particles were synthesized by a solvothermal method and a classical stÖber method. Superparamagnetic Fe3O4 was the core, and a sol-gel coating of SiO2 was the shell. After the SiO2 surface was modified with amino groups, benzaldehyde was conjugated to the particles by a Schiff base reaction. The Fe3O4@SiO2 particles were emulsified in paraffin/water as a solid emulsifier to obtain an oil-in-water Pickering emulsion. After cooling the paraffin, the particles were fixed on the surface of the emulsion droplets. The particles were etched in ammonium fluoride aqueous solution, and Janus particles with different structures could be obtained by adjusting the etching time. Via the in situ growth of metal Pt or Ag nanoparticles, superparamagnetic Fe3O4@SiO2-Pt or Fe3O4@SiO2-Ag Janus particles were obtained. The movement of Fe3O4@SiO2-Pt Janus particles was observed due to the catalytic decomposition of hydrogen peroxide aqueous solution. It was found that in the short term, there was a linear motion, while in the long term, the motion direction and trajectory were random. Fe3O4@SiO2-Ag Janus particles were used as magnetic solid surfactants to stabilize the emulsions and catalyze the nitro reduction. About 60% of the surficial area of the Janus particles was modified by phenyl groups, while the remaining 40% was covered with Ag nanoparticles. Under the premise of maintaining the Janus balance, the whole particle became more hydrophobic, which was conducive to the formation of the water-in-oil emulsion. In addition, the Ag side of the Janus particles was towards the aqueous phase, and the opposite hydrophobic side was towards the oil phase. The Janus particles possessed a fixed orientation assembly at the oil-water interface. The assemble membrane possessed Janus characteristics, and it facilitated the stable dispersion of the emulsion and the catalysis. The method has the advantages of a simple principle, capability for mass production, universality and versatility. It is expected that Janus particles will be used to more precisely regulate the zoning with different functional substances.

Key words： Janus particle; magnetic response; self-driven; solid emulsifier; catalysis

Cite this article

Zhao Ruotong , Han Tianhao , Sun Dayin , Shan Dan , Liu Zhengping , Liang Fuxin . Multifunctional Fe3O4@SiO2Janus Particles[J]. Acta Chimica Sinica, 2020 , 78(9) : 954 -960 . DOI: 10.6023/A20060208

References

[1] De Gennes, P. G. Rev. Mod. Phys. 1992, 64, 645.
[2] Jiang, S.; Granick, S. Janus Particles Synthesis, Self-assembly and Applications, RSC, London, England, 2012.
[3] Shi, S. Y.; Zhang, L. L.; Zhang, G. L.; Song, X. M.; Sun, D. Y.; Liang, F. X.; Yang, Z. Z. Macromolecules 2020, 53, 2228.
[4] Xiang, D.; Jiang, B. Y.; Liang, F. X.; Yan, L. T.; Yang, Z. Z. Macromolecules 2020, 53, 1063.
[5] Zhang, H.; Wang, Q.; Jiang, B. Y.; Liang, F. X.; Yang, Z. Z. ACS Appl. Mater. Interfaces 2016, 8, 33250.
[6] Zhao, R. T.; Yu, X. T.; Sun, D. Y.; Huang, L. Y.; Liang, F. X.; Liu, Z. P. ACS Appl. Nano. Mater. 2019, 2, 2127.
[7] Zhao, R. T.; Han, T. H.; Sun, D. Y.; Huang, L. Y.; Liang, F. X.; Liu, Z. P. Langmuir 2019, 35, 11435.
[8] Nisisako, T.; Torii, T.; Takahashi, T.; Takizawa, Y. Adv. Mater. 2006, 18, 1152.
[9] Hays, D. A. J. Electrost. 2001, 51-52, 57.
[10] Wu, B.; Liu, Z. Q.; Liu, X. S.; Liu, G. Q.; Tang, P.; Yuan, W.; Fu, G. L. Nanotechnology 2020, 31, 225301.
[11] Dolbashian1, C.; Chavez1, B. L.; Bauer, M.; Budi, M.; Andrew, J. S.; Crawford, T. M. J. Phys. D:Appl. Phys. 2020, 53, 195002.
[12] Li, L. L.; Bacaksiz, C.; Nakhaee, M.; Pentcheva, R.; Peeters, F. M.; Yagmurcukardes, M. Phys. Rev. B 2020, 101, 134102.
[13] Paulus, M.; Degen, P.; Brenner, T.; Tiemeyer, S.; Struth, B.; Tolan, M.; Rehage, H. Langmuir 2010, 26, 15945.
[14] Xu, Q. A.; Kang, X. W.; Bogomolni, R. A.; Chen, S. W. Langmuir 2010, 26, 14923.
[15] Ozin, G. A.; Manners, I.; Fournier-Bidoz, S.; Arsenault, A. Adv. Mater. 2005, 17, 3011.
[16] Wang, J. ACS Nano 2009, 3, 4.
[17] Cui, L. Y.; Fan, S. S.; Yu, C. L. Acta Chim. Sinica 2017, 75, 967(in Chinese). (崔丽影, 范莎莎, 于存龙, 化学学报, 2017, 75, 967.)
[18] Zhang, B. B.; Ma, C.; Wang, X. G. Acta Chim. Sinica 2015, 73, 441(in Chinese). (张贝贝, 马驰, 王小刚, 化学学报, 2015, 73, 441.)
[19] Chen, C. Y.; Yi, J. Q.; Dong, H. Y. Chin. J. Chem. 2015, 33, 527.
[20] Liang, F. X.; Yang, Z. Z. Acta Polym. Sin. 2017, (6), 883(in Chinese). (梁福鑫, 杨振忠, 高分子学报, 2017, (6), 883.)
[21] Tang, L.; Liang, F. X.; Wang, Q. Chin. J. Polym. Sci. 2017, 35, 799(in Chinese). (唐琳, 梁福鑫, 王倩, 高分子科学, 2017, 35, 799.)
[22] Meng, H. Y.; Wan, J. P.; Jing, J. Y. Chin. Chem. Lett. 2020, 31, 253(in Chinese). (孟宏宇, 万基平, 井静云, 中国化学快报, 2020, 31, 253.)
[23] Jing, J. Y.; Yao, X. H.; Yang, Z. Z. Acta Polym. Sin. 2018, 8, 1066(in Chinese). (井静云, 姚晓辉, 杨振忠, 高分子学报, 2018, 8, 1066.)
[24] Liang, F. X.; Liu, B.; Yang, Z. Z. Polym. Bull. 2016, (9), 45(in Chinese). (梁福鑫, 刘冰, 杨振忠, 高分子通报, 2016, (9), 45.)
[25] Pickering, S. U. J. Am. Chem. Soc. 1907, 91, 2001.
[26] Binks, B. P. Curr. Opin. Colloid Interface Sci. 2002, 7, 21.
[27] Lin, Y.; Skaff, H.; Emrick, T.; Dinsmore, A. D.; Russell, T. P. Science 2003, 299, 226.
[28] Melle, S.; Lask, M.; Fuller, G. G. Langmuir 2005, 21, 2158.
[29] Komazaki, Y.; Hirama, H.; Torii, T. J. Appl. Phys. 2015, 117, 154506.
[30] Binks, B. P.; Lumsdon, S. O. Langmuir 2000, 16, 2539.
[31] Liang, F. X.; Zhang, C. L.; Yang, Z. Z. Adv. Mater. 2014, 26, 6944.
[32] Kline, T. R.; Paxton, W. F.; Mallouk, T. E.; Sen, A. Angew. Chem., Int. Ed. 2005, 44, 744.
[33] Laocharoensuk, R.; Burdick, J.; Wang, J. ACS Nano 2008, 2, 1069.
[34] Wang, J.; Manesh, K. M. Small 2010, 6, 338.
[35] Gao, W.; Uygun, A.; Wang, J. J. Am. Chem. Soc. 2012, 134, 897.
[36] Jonathan, R. H.; Richard, A. L. J.; Anthony, J. R.; Tim, G.; Reza, V.; Ramin, G. Phys. Rev. Lett. 2007, 99, 048102-1.
[37] Ge, Y. E.; Wang, T.; Zheng, M. F.; Jiang, Z. Z.; Wang, S. Nanotechnology 2019, 30, 315702.
[38] Zheng, J.; Wang, J. G.; Xiong, Z.; Wan, Z. H.; Zhan, X. J.; Yang, S. J.; Chen, J. W.; Dai, J.; Tang, J. Y. Adv. Funct. Mater. 2019, 29, 1901768.
[39] Xuan, M. J.; Wu, Z. G.; Shao, J. X.; Dai, L. R.; Si, T. Y.; He, Q. J. Am. Chem. Soc. 2016, 138, 6492.
[40] Wu, Y. J.; Wu, Z. G.; Lin, X. K.; He, Q.; Li, J. B. ACS Nano 2012, 6, 10910.
[41] Crossley, S.; Faria, J.; Shen, M.; Resasco, D. E. Science 2010, 327, 68.
[42] Kirillova, A.; Schliebe, C.; Stoychev, G.; Jakob, A.; Lang, H.; Synytska, A. ACS Appl. Mater. Interfaces 2015, 7, 21218.
[43] Wang, C.; Yin, H.; Dai, S.; Sun, S. Chem. Mater. 2010, 22, 3277.
[44] Valadares, L. F.; Tao, Y. G.; Zacharia, N. S.; Kitaev, V.; Galembeck, F.; Kapral, R.; Ozin, G. A. Small 2010, 6, 565.
[45] Liu, Y. J.; Hu, J. K.; Yu, X. T.; Xu, X. Y.; Gao, Y.; Li, H. M.; Liang, F. X. J. Colloid Interface Sci. 2017, 490, 357.
[46] Xu, X. Q.; Deng, C. H.; Gao, M. X.; Yu, W. J.; Yang, P. Y.; Zhang, X. M. Adv. Mater. 2006, 18, 3289.
Options
Outlines

/

〈 〉