Preparation and Characterization of Amino-functionalized Magnetic Graphite Nanosheet Nanocomposites†

doi:10.7503/cjcu20160497

Abstract

Abstract:

Amino-functionalized magnetic graphite nanosheet(NH₂-GNS/Fe₃O₄) nanocomposites were prepared by one-pot solvothermal method with GNS as carrier, FeCl₃·6H₂O as precursor, ethylenediamine as modifier and reductant, ethanediol as surfactant and reductant and sodium acetate as stabilizer. The as-prepared sample was characterized by transmission electron microscope(TEM), X-ray diffractometer(XRD), Fourier transform infrared spectrometer(FTIR) and vibrating sample magnetometer(VSM). The adsorption property of the NH₂-GNS/Fe₃O₄ nanocomposites for Ag(Ⅰ) in aqueous solution was studied. The results indicate that the NH₂-GNS/Fe₃O₄ nanocomposites were successfully prepared, the magnetic property of NH₂-GNS/Fe₃O₄ nanocomposites could meet the requirement of the solid-liquid separation. The NH₂-GNS/Fe₃O₄ nanocomposites had adsorption property for Ag(Ⅰ) in aqueous solution, moreover, Ag(Ⅰ) was reduced into silver in the process of adsorption. The adsorption process of NH₂-GNS/Fe₃O₄ nanocomposites for Ag(Ⅰ) in aqueous solution was the monolayer adsorption on the homogeneous surface.

Key words: Graphite nanosheet, Solvothermal method, Nanocomposite, Ag(Ⅰ), Adsorption

CLC Number:

TrendMD:

XING Dan, MA Yingxia, RUAN Yongxin, DU Xueyan. Preparation and Characterization of Amino-functionalized Magnetic Graphite Nanosheet Nanocomposites^†[J]. Chem. J. Chinese Universities, 2016, 37(11): 1947.

Figures/Tables 7

Fig.1 TEM image of NH2-GNS/Fe3O4 nanocomposites(A) and the corresponding SAED pattern(B)

Fig.2 XRD patterns of GNS(a), NH2-GNS/Fe3O4 nanocomposites before(b) and after(c) adsorption of Ag(Ⅰ)

Fig.3 FTIR spectra of GNS(a) and NH2-GNS/Fe3O4 nanocomposites(b)

Fig.4 Magnetization curve for NH2-GNS/Fe3O4 nanocomposites(A) and digital photos of NH2-GNS/Fe3O4 nanocomposites before(left) and after(right) magnetic separation in aqueous solution at room temperature(B)

Fig.5 Effect of initial concentration on adsorption of Ag(Ⅰ)

Fig.6 Langmuir isotherm(A) and Freundlich isotherm(B)

Table 1 Langmuir and Freundlich isotherm parameters for adsorption of Ag(Ⅰ) on NH2-GNS/Fe3O4 nanocomposites*

Langmuir			Freundlich
q_m/(mg·g^-1)	K_L/(L·mg^-1)	R²	K_F/(mg·g^-1)	n/(mg·L^-1)	R²
12.6103	0.8564	0.9997	5.9769	4.2571	0.7958

References 22

[1]	Liu F., L. , Wang Z., M. , Li G., Y. , Desalination and Water Treatment, 2014, 52( 37-39), 7172- 7179
[2]	孟宪慧. 含银废水中银离子及银的配位离子的吸附与解吸研究, 沈阳: 东北大学, 2005)
	Meng X., H. , Study on Adsorption and Desorption of Ag + and Coordination Compound of Silver in Silver-containing Wastewater, Northeas-tern University, Shenyang, 2005 (
[3]	张帆, 李菁, 谭建华, 王波, 黄福. 化工进展, 2013, 32( 11), 2749- 2756
	Zhang, F. , Li, J. , Tan J., H. , Wang, B. , Huang, F. , Chemical Industry and Engineering Progress, 2013, 32( 11), 2749- 2756 (
[4]	王旭恒, 王少芬, 闫新创, 宋燕. 广州化工, 2014, 42( 9), 93- 95
	Wang X., H. , Wang S., F. , Yan X., C. , Song, Y. , Guangzhou Chemical Industry, 2014, 42( 9), 93- 95 (
[5]	Hou H., B. , Yu D., M. , Hu G., H. , Langmuir, 2015, 31( 4), 1376- 1384
[6]	王子涛, 肖长发, 赵健, 胡霄, 徐乃库. 高等学校化学学报, 2014, 35( 11), 2410- 2417
	Wang Z., T. , Xiao C., F. , Zhao, J. , Hu, X. , Xu N., K. , Chem. J. Chinese Universities, 2014, 35( 11), 2410- 2417 (
[7]	李国显. 石墨烯/纳米复合材料的制备及吸波性能, 南京: 南京航空航天大学, 2012)
	Li G., X. , Synthesis and Microwave Absorbing Properties of Graphene/Magnetic-particle Nanocomposite Materials, Nanjing University of Aeronautics and Astronautics, Nanjing, 2012 (
[8]	He, F. , Lam, K. , Ma, D. , Fan J., T. , Chan L., H. , Zhang L., M. , Carbon, 2013, 58, 175- 184
[9]	Ma Y., X. , Li Y., F. , Zhao G., H. , Yang L., Q. , Wang J., Z. , Shan, X. , Yan, X. , Carbon, 2012, 50( 8), 2976- 2986
[10]	任芳, 朱光明, 任鹏刚. 复合材料学报, 2014, 31( 2), 263- 272
	Ren, F. , Zhu G., M. , Ren P., G. , Acta Materiae Compositae Sinica, 2014, 31( 2), 263- 272 (
[11]	Xu K., L. , Chen G., M. , Qiu, D. , Journal of Materials Chemistry A, 2013, 1( 40), 12395- 12399
[12]	Moussa, M. , El-Kady M., F. , Wang, H. , Michimore, A. , Zhou Q., Q. , Xu, J. , MajeswkiP., Ma, J. , Nanotechnology, 2015, 26( 7), 1- 11
[13]	Rajaura R., S. , Srivastava, S. , Sharma, V. , Sharma P., K. , Lal, C. , Singh, M. , Palsania H., S. , Vijay Y., K. , International Journal of Hydrogen Energy, 2016, 41( 22), 9454- 9461
[14]	Liu X., W. , Shen L., Y. , Hu Y., H. , Water Air Soil Pollut., 2016, 227( 5), 1- 12
[15]	杨梖, 白雪, 顾海鑫. 环境工程, 2015, 4, 25- 29
	Yang, B. , Bai, X. , Gu H., X. , Environmental Engineering, 2015, 4, 25- 29 (
[16]	Tan Y., Q. , Chen, M. , Hao Y., M. , Chemical Engineering Journal, 2012, 191( 2012011), 104- 111
[17]	Cao, W. , Ma Y., R. , Zhou, W. , Guo, L. , Chem. Res. Chinese Universities, 2015, 31( 4), 508- 513
[18]	Wu X., W. , Ma H., W. , Yang, J. , Wang F., J. , Li Z., H. , Applied Surface Science, 2012, 258( 14), 5516- 5521
[19]	路翠萍. 磁性聚苯乙烯基大孔树脂的制备及对水溶液中金属离子的吸附性能研究, 兰州: 兰州理工大学, 2014)
	Lu C., P. , Study on the Synthesis of Magnetic Polystyrene Based Macroporous Resins and Their Adsorption Performance to Metal Ions in Aqueous Solution, Lanzhou University of Technology, Lanzhou, 2014 (
[20]	Zeng Y., B. , Zhou, Y. , Zhou T., S. , Shi G., Y. , Electrochimica Acta, 2014, 130( 0), 504- 511
[21]	Shen X., P. , Wu J., L. , Bai, S. , Zhou, H. , Journal of Alloys and Compounds, 2010, 506( 1), 136- 140
[22]	Guo H., L. , Wang X., F. , Qian Q., Y. , Wang F., B. , Xia X., H. , ACS Nano, 2009, 3( 9), 2653- 2659