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首页> 外文期刊>International Journal of Electrochemical Science >Synthesis of a Spherical Carbon-TiO2 Composite as Electrode Material for Capacitive Deionization
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Synthesis of a Spherical Carbon-TiO2 Composite as Electrode Material for Capacitive Deionization

机译：球形碳-TiO 2 复合材料的制备及电容去离子

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摘要

Activated carbon is widely used as an electrode material for capacitive deionization. However, it haslow wettability with electrolytes and a low ion-adsorption capacitance. To enhance the wettability ofactivated carbon, in this study, a carbon-metallic oxide composite was synthesized using poly(ethyleneglycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)-block copolymer and titaniumdioxide (TiO 2 ). The TiO 2 supporting material was synthesized by a sol-gel method, and activated carbonwas prepared by high-temperature calcination at 550 °C in a nitrogen atmosphere. The active materialcontaining 50 % TiO 2 exhibited the highest positive and negative capacitances of 109.5 and 121.3 F g -1 ,respectively. Finally, when this material was used as a capacitive deionization electrode, the maximumion removal rate was approximately 92 %. These results indicate that the carbon-TiO 2 compositeelectrode was more effective than the raw carbon electrode. In the end, we demonstrated the potential ofa metallic oxide with activated carbon for desalination water treatment.
机译：活性炭被广泛用作电容去离子的电极材料。然而，它具有对电解质的低润湿性和低的离子吸附电容。为了提高活性炭的润湿性，在这项研究中，使用聚（乙二醇）-嵌段-聚（丙二醇）-嵌段-聚（乙二醇）-嵌段共聚物和二氧化钛（TiO 2）合成了碳-金属氧化物复合材料。通过溶胶-凝胶法合成TiO 2载体材料，并通过在氮气氛下在550℃下高温煅烧来制备活性炭。含有50％TiO 2的活性材料分别显示出最高的正电容和负电容为109.5和121.3 F g -1。最后，当该材料用作电容性去离子电极时，最大去除率约为92％。这些结果表明，碳-TiO 2复合电极比原始碳电极更有效。最后，我们证明了具有活性炭的金属氧化物在脱盐水处理中的潜力。

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