Chao Yanhong, Ju Haitao, Luo Jing, Jin Yan, Wang Chao, Xiong Jun, Wu Peiwen, Ji Haiyan, Zhu Wenshuai
School of Pharmacy, Jiangsu University Zhenjiang 212013 P. R. China.
School of Materials Science and Engineering, Jiangsu University Zhenjiang 212013 P. R. China
RSC Adv. 2019 Sep 26;9(52):30575-30580. doi: 10.1039/c9ra06195a. eCollection 2019 Sep 23.
Adsorptive desulfurization is an effective technology for removing harmful sulfur under mild conditions. Carbon materials have many advantages and are often used in adsorption desulfurization research, but until now have been synthesized using complicated methods and have shown limited adsorption capacity. Using an NaHCO-assisted leavening method, waste tires were in the current work used as raw materials to produce hierarchically porous carbon that exhibits a high specific surface area and abundant oxygen-containing functional groups. In contrast to the sulfur removal by the carbon material prepared using a commonly used method, the as-prepared carbon material shows excellent adsorption performance, and was able to achieve an ultra-deep desulfurization of pentanethiol, specifically removing up to 99.7% of the sulfur from a model fuel with an initial sulfur concentration of 28 ppm. Therefore, we have provided a simple method for synthesizing adsorbents with high adsorption performance, and we expect these adsorbents to be used for industrial adsorptive desulfurization.
吸附脱硫是一种在温和条件下去除有害硫的有效技术。碳材料具有许多优点，常用于吸附脱硫研究，但迄今为止一直采用复杂的方法合成，且吸附容量有限。在当前工作中，利用碳酸氢钠辅助发泡法，将废旧轮胎用作原料来制备具有高比表面积和丰富含氧官能团的分级多孔碳。与采用常用方法制备的碳材料脱硫效果相比，所制备的碳材料表现出优异的吸附性能，能够实现戊硫醇的超深度脱硫，具体而言，能从初始硫浓度为28 ppm的模拟燃料中去除高达99.7%的硫。因此，我们提供了一种合成具有高吸附性能吸附剂的简单方法，并且期望这些吸附剂能够用于工业吸附脱硫。
