农业资源与环境学报2016，Vol.33Issue(5)：443-448,6.DOI:10.13254/j.jare.2016.0006
溶液初始pH值及裂解温度对玉米秸秆基生物炭吸附Cr（遇）的影响
Impact of Initial pH and Pyrolysis Temperature on the Adsorption of Cr(遇)from Aqueous Solutions on Corn Straw-based Materials
摘要
Abstract
Batch experiments were performed on Cr(遇)adsorption using four straw-based materials including corn straw and three kinds of biochar pyrolysed at 300℃, 450℃and 600℃, respectively. The results showed that the Cr(遇)adsorption were significantly affected by initial pH and pyrolysis temperature. The data were described by kinetic and isotherm models, and showed that the adsorption of Cr(遇) was increased with the decrease of initial pH. The removal rates of Cr(遇)were decreased with the increase of the pyrolysis temperature at pH=3 or pH=5. The biochar pyrolysed at 300℃had the best capability of removing Cr(遇)from aqueous solution at pH=1, and the maxi-mum adsorption quantity was 141.24 mg·g-1 approximately. It observed that both the lower initial pH and the lower pyrolysis temperature had positive effects on the removal of Cr(遇)from aqueous solution.关键词
玉米秸秆/生物炭/Cr(遇)/吸附/pH/裂解温度Key words
corn straw/biochar/Cr(遇)/adsorption/pH/pyrolysis temperature分类
资源环境引用本文复制引用
王帅,商建英,胡克林,王博,徐东昊,杨雯,郑晓丽,晏朝睿..溶液初始pH值及裂解温度对玉米秸秆基生物炭吸附Cr（遇）的影响[J].农业资源与环境学报,2016,33(5):443-448,6.基金项目
国家级创新项目 （）
