Citation: Jun Huang, Pengfei Nie, Yongchao Lu, Jiayang Li, Yiwen Wang, Jianyun Liu. Efficient adsorption of hardness ions by a mordenite-loaded, nitrogen-doped porous carbon nanofiber cathode in capacitive deionization[J]. Acta Physico-Chimica Sinica, ;2025, 41(7): 100066. doi: 10.1016/j.actphy.2025.100066 shu

Efficient adsorption of hardness ions by a mordenite-loaded, nitrogen-doped porous carbon nanofiber cathode in capacitive deionization

1.
College of Environmental Science and Engineering, Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, Donghua University, Shanghai 201620, China;
2.
School of Civil Engineering, Kashi University, Kashi 844000, Xinjiang Uygur Autonomous Region, China;
3.
College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China

Received Date: 18 December 2024
Revised Date: 25 January 2025
Accepted Date: 12 February 2025

Fund Project: The project was supported by the National Natural Science Foundation of China (21776045) and the Natural Science Foundation of Shanghai (23ZR1401200).

Water hardness, predominantly due to the presence of Ca²⁺ and Mg²⁺ ions, presents significant challenges to water quality and public health. Addressing this issue necessitates effective water softening, which remains a pivotal task in water treatment. Capacitive deionization (CDI) has emerged as a promising technology for selective hardness removal, leveraging the low-cost, non-toxic and environmentally friendly selective electrode materials. Electrospun nanofibers, characterized by their three-dimensional porous structure, offer good flexibility, high specific surface area and excellent electrical conductivity. Their components can be tailored to meet the specific requirements. In this study, we incorporated mordenite (MOR), noted for its excellent ion-exchange capacity, into self-supporting nitrogen-doped carbon nanofibers (N-CNF) via electrospinning a blend of polyacrylonitrile (PAN), urea, and MOR, followed by carbonization. The resulting mordenite-loaded N-CNF composite (MOR@N-CNF) exhibited good flexibility and high conductivity. Scanning electron microscopy and X-ray diffraction analysis confirmed the presence and uniform distribution of MOR within the CNF matrix. X-ray photo spectroscopy demonstrated an increase in nitrogen content in MOR@N-CNF. In addition, the MOR@N-CNF composite displayed enhanced hydrophilicity and an increased specific surface area. When used as a self-supporting electrode, MOR@N-CNF exhibited the electrochemical specific capacitance of 162.7 F·g^-1, with the specific capacitance retention of 60% in a CaCl₂ solution. In an asymmetric CDI setup with activated carbon (AC) as the anode, the MOR@N-CNF cathode demonstrated outstanding adsorption capacities of 1501 and 1416 μmol·g^-1 for Mg²⁺ and Ca²⁺, respectively. The composite electrode exhibited high selectivity for Mg²⁺ and Ca²⁺ over Na⁺ with a selectivity factor of 9.7 and 8.9, respectively. These attributes endow the material with exceptional ability to discriminate between divalent and monovalent ions, thereby enhancing its potential for hardness removal. Furthermore, the electrode retained 78% of its adsorption capacity after 40 cycles, demonstrating robust cyclic stability, and ensuring long-term CDI operation. This work provides a new strategy for preparing ion-exchange material-based composite electrodes and highlights the potential of CDI technology in hard water softening.
- Self-supporting,
- Carbon nanofiber,
- Capacitive deionization,
- Selective adsorption,
- Hardness ion
1. [1]
  Ayaz, M.; Namazi, M. A.; Din, M. A. U.; Ershath, M. I. M.; Mansour, A.; Aggoune, E.-H. M. Desalination 2022, 540, 116022. doi: 10.1016/j.desal.2022.116022
2. [2]
  Egbueri, J. C. Environ. Sci. Pollut. Res. Int. 2023, 30 (22), 61626. doi: 10.1007/s11356-023-26396-5
3. [3]
  Gitis, V.; Hankins, N. J. Water Process Eng. 2018, 25, 34. doi: 10.1016/j.jwpe.2018.06.003
4. [4]
  Wu, Q.; Liang, D.; Lu, S.; Wang, H.; Xiang, Y.; Aurbach, D.; Avraham, E.; Cohen, I. Desalination 2022, 542, 116043. doi: 10.1016/j.desal.2022.116043
5. [5]
  Alaei Shahmirzadi, M. A.; Hosseini, S. S.; Luo, J.; Ortiz, I. J. Environ. Manage. 2018, 215, 324. doi: 10.1016/j.jenvman.2018.03.040
6. [6]
  Dou, W.; Zhou, Z.; Jiang, L. M.; Jiang, A.; Huang, R.; Tian, X.; Zhang, W.; Chen, D. J. Environ. Manage. 2017, 196, 518. doi: 10.1016/j.jenvman.2017.03.054
7. [7]
  Afsari, M.; Shon, H. K.; Tijing, L. D. Adv. Colloid Interface Sci. 2021, 289, 102362. doi: 10.1016/j.cis.2021.102362
8. [8]
  Xiong, Y.; Yu, F.; Ma, J. Acta Phys. Chim. Sin. 2022, 38 (5), 2006037.
9. [9]
  Wang, L.; Yu, F.; Ma, J. Acta Phys. Chim. Sin. 2017, 33 (7), 1338.
10. [10]
  Sivasubramanian, P.; Kumar, M.; Kirankumar, V. S.; Samuel, M. S.; Dong, C.-D.; Chang, J.-H. Desalination 2023, 559, 116652. doi: 10.1016/j.desal.2023.116652
11. [11]
  Zhao, X.; He, Z.; Li, M.; He, C.; Xu, Y.; Wang, Y.; Ma, J.; Yang, H. Y. Desalination 2025, 597, 118377. doi: 10.1016/j.desal.2024.118377
12. [12]
  Porada, S.; Zhao, R.; van der Wal, A.; Presser, V.; Biesheuvel, P. M. Prog. Mater Sci. 2013, 58 (8), 1388. doi: 10.1016/j.pmatsci.2013.03.005
13. [13]
  Tang, W.; Liang, J.; He, D.; Gong, J.; Tang, L.; Liu, Z.; Wang, D.; Zeng, G. Water Res. 2019, 150, 225. doi: 10.1016/j.watres.2018.11.064
14. [14]
  Lu, M.; Liu, J. Y.; Cheng, J.; Wang, S. P.; Yang, J. M. Acta Phys. Chim. Sin. 2014, 30 (12), 2263.
15. [15]
  Wang, D.; Zhang, Y.; Dong, H.; Chen, H.; SenGupta, A. Environ. Sci. Water Res. Technol. 2024, 10 (6), 1319. doi: 10.1039/d4ew00125g
16. [16]
  Sharma, V.; Mishra, S.; raj, S. K.; Upadhyay, P.; Kulshrestha, V. Colloids Surf. A 2023, 676, 132064. doi: 10.1016/j.colsurfa.2023.132064
17. [17]
  Li, J.; Corma, A.; Yu, J. Chem. Soc. Rev. 2015, 44 (20), 7112. doi: 10.1039/c5cs00023h
18. [18]
  Gao, S.; Wang, S.; Sun, Y.; Wang, J.; Hu, P.; Shang, J.; Ma, Z.; Liang, Y. Renewable Energy 2023, 215, 119033. doi: 10.1016/j.renene.2023.119033
19. [19]
  Nakamoto, K.; Ohshiro, M.; Kobayashi, T. J. Environ. Chem. Eng. 2017, 5 (1), 513. doi: 10.1016/j.jece.2016.12.031
20. [20]
  Liu, Y.; Ma, W.; Cheng, Z.; Xu, J.; Wang, R.; Gang, X. Desalination 2013, 326, 109. doi: 10.1016/j.desal.2013.07.022
21. [21]
  Kim, C.; Lee, J.; Kim, S.; Yoon, J. Desalin. Water Treat. 2016, 57 (51), 24682. doi: 10.1080/19443994.2016.1152638
22. [22]
  Nie, P.; Hu, B.; Shang, X.; Xie, Z.; Huang, M.; Liu, J. Sep. Purif. Technol. 2020, 250, 117240. doi: 10.1016/j.seppur.2020.117240
23. [23]
  Liu, J.; Wang, S.; Yang, J.; Liao, J.; Lu, M.; Pan, H.; An, L. Desalination 2014, 344, 446. doi: 10.1016/j.desal.2014.04.015
24. [24]
  Pan, H.; Yang, J.; Wang, S.; Xiong, Z.; Cai, W.; Liu, J. J. Mater. Chem. A 2015, 3 (26), 13827. doi: 10.1039/c5ta02954f
25. [25]
  Wang, R.; Hu, D.; Du, P.; Weng, X.; Tang, H.; Zhang, R.; Song, W.; Lin, S.; Huang, K.; Zhang, R.; et al. Front. Chem. 2021, 9, 812375. doi: 10.3389/fchem.2021.812375
26. [26]
  Xu, Z.; Ye, J.; Pan, Y.; Liu, K.; Liu, X.; Shui, J. Energy Technol. 2022, 10 (4), 2101024. doi: 10.1002/ente.202101024
27. [27]
  Zhang, H.; Xie, Z.; Wang, Y.; Shang, X.; Nie, P.; Liu, J. RSC Adv. 2017, 7 (87), 55224. doi: 10.1039/c7ra12001j
28. [28]
  Nie, P.; Wang, S.; Shang, X.; Hu, B.; Huang, M.; Yang, J.; Liu, J. Desalination 2021, 520, 115340. doi: 10.1016/j.desal.2021.115340
29. [29]
  Luo, M.; Chen, J.; Li, Q.; Wang, Y. Industrial & Engineering Chemistry Research 2023, 62 (22), 8744. doi: 10.1021/acs.iecr.3c00807
30. [30]
  Zhou, Q.; Lv, G.; Li, H.; Hu, S.; Liu, H.; Li, L.; He, L.; Li, H.; Hu, P.; Wang, J. J. Power Sources 2024, 623, 235509. doi: 10.1016/j.jpowsour.2024.235509
31. [31]
  Lankapati, H. M.; Lathiya, D. R.; Choudhary, L.; Dalai, A. K.; Maheria, K. C. ChemistrySelect 2020, 5 (3), 1193. doi: 10.1002/slct.201903715
32. [32]
  Kalijadis, A.; Gavrilov, N.; Jokić, B.; Gilić, M.; Krstić, A.; Pašti, I.; Babić, B. Mater. Chem. Phys. 2020, 239, 122120. doi: 10.1016/j.matchemphys.2019.122120
33. [33]
  Ajravat, K.; Rajput, S.; Brar, L. K. Diamond Relat. Mater. 2022, 129, 109373. doi: 10.1016/j.diamond.2022.109373
34. [34]
  Tan, B.; Li, H.; Yuan, Q.; An, F. Mater. Today Commun. 2024, 41, 110459. doi: 10.1016/j.mtcomm.2024.110459
35. [35]
  Zheng, Y.; Chen, K.; Jiang, K.; Zhang, F.; Zhu, G.; Xu, H. J. Energy Storage. 2022, 56, 105995. doi: 10.1016/j.est.2022.105995
36. [36]
  Abbas, Q.; Mirzaeian, M.; Ogwu, A. A.; Mazur, M.; Gibson, D. Int. J. Hydrogen Energy 2020, 45 (25), 13586. doi: 10.1016/j.ijhydene.2018.04.099
37. [37]
  Hou, C.-H.; Huang, C.-Y. Desalination 2013, 314, 124. doi: 10.1016/j.desal.2012.12.029
38. [38]
  Yoon, H.; Lee, J.; Kim, S.-R.; Kang, J.; Kim, S.; Kim, C.; Yoon, J. Desalination 2016, 392, 46. doi: 10.1016/j.desal.2016.03.019
39. [39]
  Leong, Z. Y.; Zhang, J.; Vafakhah, S.; Ding, M.; Guo, L.; Yang, H. Y. Desalination 2021, 520, 115374. doi: 10.1016/j.desal.2021.115374
40. [40]
  Xu, Y.; Zhou, H.; Wang, G.; Zhang, Y.; Zhang, H.; Zhao, H. ACS Appl. Mater Interfaces 2020, 12 (37), 41437. doi: 10.1021/acsami.0c11233
41. [41]
  Xu, Y.; Xiang, S.; Zhou, H.; Wang, G.; Zhang, H.; Zhao, H. ACS Appl. Mater Interfaces 2021, 13 (32), 38886. doi: 10.1021/acsami.1c09996
42. [42]
  Gao, F.; Du, X.; Hao, X.; Ma, X.; Chang, L.; Han, N.; Guan, G.; Tang, K. Chem. Eng. J. 2020, 380, 122413. doi: 10.1016/j.cej.2019.122413
43. [43]
  Niu, Y.; Meng, K.; Ming, S.; Chen, H.; Yu, X.; Rong, J.; Li, X. Diamond Relat. Mater. 2023, 136, 109925. doi: 10.1016/j.diamond.2023.109925
44. [44]
  Wang, B.; Koike, N.; Iyoki, K.; Chaikittisilp, W.; Wang, Y.; Wakihara, T.; Okubo, T. Phys. Chem. Chem. Phys. 2019, 21 (7), 4015. doi: 10.1039/c8cp06975a
45. [45]
  Huyskens, C.; Helsen, J.; de Haan, A. B. Desalination 2013, 328, 8. doi: 10.1016/j.desal.2013.07.002
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