Department of Mechanical & Nuclear Engineering, College of Engineering, University of Sharjah, P.O. Box 27272, Sharjah, UAE.
Chemical Engineering Department, Minia University, El-Minia, 61519, Egypt.
Sci Rep. 2020 Jun 15;10(1):9676. doi: 10.1038/s41598-020-66700-8.
In this study, N-doped and TiO-decorated graphene oxides were developed as efficient nonprecious electrodes for capacitive deionization. The activity of this new material was evaluated in situ and in vivo. The performance of the synthesized material was measured in different saline solutions (0.1, 0.5 and 1.0 M NaCl) as an electrolyte. The results showed that the new material exhibits very good performance (157 F/g at 5 mV/s and 1.0 M NaCl compared to 19.5 F/g for pure graphene oxide). In the desalination test, which was performed in batch mode, the salt adsorption capacity and the efficiency of salt removal were 9.2 mg/g and 98%, respectively. To check the stability, the desalination test was repeated several times, and no change in the performance was observed. The results provide evidence that the newly synthesized material is a potential electrode material for CDI water desalination with satisfactory salt removal ability.
在这项研究中，制备了氮掺杂和 TiO 修饰的氧化石墨烯作为用于电容去离子的高效非贵金属电极。该新材料的活性在原位和体内进行了评估。在不同的盐溶液（0.1、0.5 和 1.0 M NaCl）中作为电解质来测量合成材料的性能。结果表明，该新材料表现出非常好的性能（在 5 mV/s 和 1.0 M NaCl 下为 157 F/g，而纯氧化石墨烯为 19.5 F/g）。在批处理模式下进行的脱盐测试中，盐吸附容量和盐去除效率分别为 9.2 mg/g 和 98%。为了检查稳定性，重复进行了多次脱盐测试，没有观察到性能的变化。这些结果表明，新合成的材料是一种具有令人满意的脱盐能力的电容去离子用水脱盐的潜在电极材料。
