Preparation of active carbons from corn stalk for butanol vapor adsorption

• 来源期刊: 能源化学
• 年，卷（期）: 2017,（1）
• 页码范围: 35-41
• 页数: 7页
• 语种: 英文

摘要

Active carbons (ACs) were prepared through chemical activation of biochar from whole corn stalk (WCS) and corn stalk pith (CSP) at varying temperatures using potassium hydroxide as the activating agent.ACs were characterized via pore structural analysis and scanning electron microscopy (SEM).These adsorbents were then assessed for their adsorption capacity for butanol vapor.It was found that WCS activated at 900 ℃ for 1 h (WCS-900) had optimal butanol adsorption characteristics.The BET surface area and to tal pore volume of the WCS-900 were 2330 m2/g and 1.29 cm3/g,respectively.The dynamic adsorption capacity of butanol vapor was 410.0 mg/g,a 185.1％ increase compared to charcoal-based commercial AC (143.8 mg/g).