Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, Jeonbuk, 561-756, Republic of Korea.
Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt.
Sci Rep. 2018 Jan 11;8(1):541. doi: 10.1038/s41598-017-19027-w.
Capacitive deionization, as a second generation electrosorption technique to obtain water, is one of the most promising water desalination technologies. Yet; in order to achieve high CDI performance, a well-designed structure of the electrode materials is needed, and is in high demand. Here, a novel composite nitrogen-TiO/ZrO nanofibers incorporated activated carbon (NACTZ) is synthesized for the first time with enhanced desalination efficiency as well as disinfection performance towards brackish water. Nitrogen and TiO/ZrO nanofibers are used as the support of activated carbon to improve its low capacitance and hydrophobicity, which had dramatically limited its adequacy during the CDI process. Importantly, the as-fabricated NACTZ nanocomposite demonstrates enhanced electrochemical performance with significant specific capacitance of 691.78 F g, low internal resistance and good cycling stability. In addition, it offers a high capacitive deionization performance of NACTZ yield with electrosorptive capacity of 3.98 mg g, and, good antibacterial effects as well. This work will provide an effective solution for developing highly performance and low-cost design for CDI electrode materials.
电容去离子作为第二代获取水的电吸附技术，是最有前途的海水淡化技术之一。然而，为了实现高 CDI 性能，需要设计良好的电极材料结构，这是非常需要的。在这里，首次合成了一种新型的复合氮-TiO/ZrO 纳米纤维复合活性炭（NACTZ），具有增强的脱盐效率和对咸水的消毒性能。氮和 TiO/ZrO 纳米纤维被用作活性炭的支撑物，以提高其低电容和疏水性，这极大地限制了其在 CDI 过程中的适用性。重要的是，所制备的 NACTZ 纳米复合材料表现出增强的电化学性能，具有 691.78Fg 的显著比电容、低内阻和良好的循环稳定性。此外，它还提供了 NACTZ 的高电容去离子性能，具有 3.98mg/g 的电吸附容量和良好的抗菌效果。这项工作将为开发高性能和低成本的 CDI 电极材料提供有效的解决方案。
