| POLYMERS AND POLYMER MATRIX COMPOSITES |
|
|
|
|
|
| Its Adsorption Properties for Copper Ions |
| ZHANG Xiaoye, SUN Heyu, HE Yang, LI Jianjian, FENG Xia, ZHAO Yiping, CHEN Li
|
| State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China |
|
|
|
|
Abstract The hyperbranched polyamidoamine (PAMAM) have a large number of amine-terminated groups and amide groups, which can adsorb heavy metal ions by coordination, and further increase the adsorption capacity by increasing the number of generation. In this work, the different generation of PAMAM were added to a casting solution of polyvinylidene fluoride (PVDF) by blending, and PVDF/PAMAM membranes having an adsorption capacity for removing copper ions were prepared by immersion precipitation phase inversion. The structure and morphology of the membranes were characterized by infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (SEM) and atomic force microscopy (AFM). Static contact angle and pure water flux were studied, and the results found that the pure water flux of PVDF/G4.0 PAMAM membranes were increased from 64.86 L/(m2·h) of PVDF membranes to 424.00 L/(m2·h), and the hydrophilicity of membranes were improved. Static adsorption experiments showed that the adsorption capacity of copper ions by PVDF/PAMAM membrane increased to 22.65 mg/g compared to PVDF membranes, which was 7.70 times higher than that of PVDF membrane. By adsorption isotherm analysis, the PVDF/PAMAM membrane can continuously adsorb copper ions, and continue to adsorb at 550 min. The adsorption kinetics accorded with the quasi-secondary kinetic model and belonged to chemical adsorption. The PVDF blend PAMAM membrane broadened the application of PVDF membrane in the field of adsorption of heavy metals.
|
|
Published: 15 January 2020
|
|
|
About author:: Xiaoye Zhangreceived her bachelor of engineering degrees in June 2016 from Tianjin Polytechnic University. From Sep. 2016 to now, she is studying for a master's degree at Tianjin Polytechnic University, focusing on the research of membrane separation technology;Yiping Zhaoobtained his Ph.D. degree from Tianjin Polytechnic University (TJPU). He is currently an Ph.D. supervisor in TJPU and serves in School of Materials of Science and Engineering as secretary of the Party committee. Mainly engaged in intelligent and functional separation membrane materials, membrane separation technology, plastics and rubber materials modification and processing research. He has published more than 30 papers in academic journals and conferences at home and abroad, including more than 20 articles in SCI and EI, and applied for 1
international invention patent (second inventor). As the first inventor, he applied for 13 national invention patents, and won the third prize of Tianjin Technology Invention Award (ranked second), won the second prize of the China Textile Industry Association Science and Technology Award (ranked second), and the second prize of the Science and Technology Award of China Textile Industry Federation (ranked second) and won the second prize of Hong Kong Sangma Textile Technology Award in 2013 (ranked first). |
|
|
1 Al-Rashdi B, Somerfield C, Hilal N. Separation & Purification Reviews, 2011, 40(3), 209.
2 Son E B, Poo K M, Chang J S, et al. Science of the Total Environment, 2018, 615, 161.
3 Fu F, Wang Q. Journal of Environmental Management, 2011, 92(3), 407.
4 Xing D Y, Chen G K, Wang K M, et al. Acta Materiae Compositae Sinica, 2017, 34(10),2271(in Chinese).
邢涤扬, 陈广凯, 王克敏, 等.复合材料学报, 2017, 34(10), 2271.
5 Adeleye A S, Conway J R, Garner K, et al. Chemical Engineering Journal, 2016, 286, 640.
6 Camarillo R, Pérez A, Canizares P, et al. Desalination, 2012, 286, 193.
7 Crini G. Bioresource Technology, 2006, 97(9), 1061.
8 Zhu Z Y, Wang L, Jiang J L, et al. Acta Materiae Compositae Sinica, 2018, 35(4),785(in Chinese).
朱振亚,王磊,姜家良,等. 复合材料学报,2018,35(4),785.
9 Li T, Zhang W, Zhai S, et al. Water Research, 2018,143,87.
10 Bu J, Li R, Quah C W, et al. Macromolecules, 2004, 37(18), 6687.
11 Cao J S, Wang C, Fang F, et al. Environmental Pollution, 2016, 219, 924.
12 Zhu J, Yang J, Deng B. Journal of Hazardous Materials, 2009, 166(2-3), 866.
13 Yantasee W, Lin Y, Fryxell G E, et al. Industrial & Engineering Che-mistry Research, 2004, 43(11), 2759.
14 Zhu W P, Gao J, Sun S P, et al. Journal of Membrane Science, 2015, 487,117.
15 Zhang J, Zhang D, Zhang A, et al. Iranian Polymer Journal, 2013, 22(7), 501.
16 Li G, Shen L, Luo Y, et al. Desalination, 2014, 338, 115.
17 Zhou S, Xue A, Zhang Y, et al. Applied Clay Science, 2015, 107, 220.
18 Kotte M R, Kuvarega A T, Cho M, et al. Environmental Science & Technology, 2015, 49(16), 9431.
19 Barakat M A, Schmidt E. Desalination, 2010, 256(1-3), 90. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2020, Vol. 34 
