农业工程学报2012，Vol.28Issue(12)：257-263,7.DOI:10.3969/j.issn.1002-6819.2012.12.041
竹炭表面结构及其对糠醛的吸附特性
Surface structure of bamboo charcoal and its adsorption property on furfural
摘要
Abstract
To remove furfural in bio-oil, bamboo charcoal obtained by pyrolysis was introduced as adsorbent. The structure property of bamboo charcoal was measured, and the adsorption property was investigated by Langmuir and Freundlich isothermal adsorption equation. The results showed that the bamboo charcoal dominant with micropore contained various alkali oxygen-functional groups (such as -OH, -COOH), aromatic compounds and aliphatic compounds. Bamboo charcoal exhibited high adsorption capacity and removing efficiency, and the removing rate was over 95% with 10 g/L furfural and 200 g/L adsorbent dose at normal temperature. The adsorption was mainly attributed to the dispersion force. The adsorption process could be described with Freundlich isothermal adsorption equation. This research provides a new economic way for the high quality utilization of bio-oil.关键词
吸附/竹/糠醛/竹炭/表面结构/等温吸附方程Key words
adsorption/ bamboo/ furfural/ bamboo charcoal/ surface structure/ isothermal adsorption equation分类
化学化工引用本文复制引用
李允超,王贤华,杨海平,谭增强,李攀,陈汉平..竹炭表面结构及其对糠醛的吸附特性[J].农业工程学报,2012,28(12):257-263,7.基金项目
国家自然科学基金(项目编号:50930006,50906032和51021065) （项目编号:50930006,50906032和51021065）
