NGHIÊN CỨU, CHẾ TẠO CẶP MÀNG LỌC TÍCH ĐIỆN TRÁI DẤU TỪ GRAPHEN OXIT HẤP PHỤ ION NA+ VÀ CL-
Chi nhánh Ven Biển, Trung tâm Nhiệt đới Việt - Nga
Phòng Độ bền Nhiệt đới, Chi nhánh Ven Biển, Trung tâm Nhiệt đới Việt - Nga 30 Nguyễn Thiện Thuật, Nha Trang, Khánh Hòa
Số điện thoại: 0984400436; Email: quanttndvn@gmail.com
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Tóm tắt
RESEARCH ON THE FABRICATION OF GRAPHENE OXIDE MEMBRANES WITH OPPOSITE CHARGES THAT ADSORB SODIUM IONS AND CHLORIDE IONS
In this research, we fabricate pairs of oppositely charged graphene oxide (GO) membranes (negatively charged n-GO and positively charged p-GO) with efficient cation or anion selectivity. The fabricated primary GO membrane carries a negative charge (n-GO). The positively charged p-GO membrane was prepared by ultrasonic stirring with polyethyleneimine. The electrical properties of the n-GO and p-GO films were examined based on a fluorescence electron microscope and zeta potentials in NaCl solution at different concentrations and times. The results show that the zeta potential of n-GO and p-GO both stabilize and maintain their charge properties in NaCl solution. The good ion selectivity of n-GO and p-GO was determined by X-ray spectroscopy (EDX) mapping.
Từ khóa
Graphene oxide, polyethyleneimine, hấp phụ ion, thế zeta
Chi tiết bài viết
Tài liệu tham khảo
2. S. P. Surwade, S. N. Smirnov, I. V. Vlassiouk, R. R. Unocic., G. M. Veith, Sheng Dai 6, S. M. Mahurin, Water desalination using nanoporous single-layer graphene, Nat. Nanotechnol, 2016, 10:459-464.
3. Wei Chen, Shuyu Chen, Tengfei Liang, Qiang Zhang, Zhongli Fan, Hang Yin, Kuo Wei Huang, Xixiang Zhang, Zhiping Lai, Ping Sheng, High-flux water desalination with interfacial salt sieving effect in nanoporous carbon composite membranes, Nat. Nanotechnol, 2018, 13:345-350.
4. J. Safaei, P. Xiong, G. Wang, Progress and prospects of two-dimensional materials for membrane-based water desalination, Materialstoday advances, 2020, 8:451-462.
5. R. K. Joshi, P. Carbone, F. C. Wang, V. G. Kravets, Y. Su, I. V. Grigorieva, H. A. Wu, A. K. Geim, R. R. Nair, Precise and ultrafast molecular sieving through graphene oxide membranes, Materials Science, 2014, 343:752-754.
6. Liang Chen, Guosheng Shi, Jie Shen, Bingquan Peng, Bowu Zhang, Yuzhu Wang, Fenggang Bian, Jiajun Wang, Ion sieving in graphene oxide membranes via cationic control of interlayer spacing, Nat. Nanotechnol, 2017, 76:380-383.
7. Lili Wang, Qi Wen, Pan Jia, Meijuan Jia, Diannan Lu, Xiaoming Sun, Lei Jiang, Wei Guo, Light-Driven active proton transport through ohotoacid- and ohotobase-doped janus graphene oxide membranes, Advanced materials, 2019, 31:245-233.
8. Zhenkun Zhang, Wenhao Shen, Lingxin Lin, Mao Wang, Ning Li, Zhifeng Zheng, Feng Liu, Liuxuan Cao, Vertically transported graphene oxide for high-performance osmotic energy conversion, Advances science, 2020, 7:1-8.
9. H. B. Park, J. Kamcev, L. M. Robeson, M. Elimelech, B. D. Freeman, Maximizing the right stuff: The trade-off between membrane permeability and selectivity, Science, 2017, 356:1-10.
10. Paulchamy, Arthi, Lignesh, A simple approach to stepwise synthesis of graphene oxide nanomaterial, J Nanomed Nanotechnol, 2015, 6:253-257.
11. Jinzhao Ji, Qian Kang, Yi Zhou, Yaping Feng, Xi Chen, Jinying Yuan, Wei Guo, Yen Wei, Lei Jiang, Osmotic power generation with positively and negatively charged 2d nanofluidic membrane pairs, Advanced functional materials, 2016, 6:1-8.
12. Liangzhu Feng, Xianzhu Yang, Xiaoze Shi, Xiaofang Tan, Rui Peng, Jun Wang, Zhuang Liu, Polyethylene glycol and polyethylenimine dualfunctionalized nano-graphene oxide for photothermally enhanced gene delivery, Nano-micro small, 2013, 9:1-9.
13. Ivan Vlassiouk, P. Y Apel, S. N. Dmitriev, Ken Healy, Z. S. Siwy, Versatile ultrathin nanoporous silicon nitride membranes, proc. Nat. Acad. Sci., 2009, 50:21039-21044.
14. V. K. Priyank, M. B. Neelkanth, Sefaattin Tongay, Junqiao Wu, M. B. Angela, C. G. Jeffrey, Scalable enhancement of graphene oxide properties by thermally driven phase transformation, Nat. Chem., 2014, 6(2):151-158.