安徽农业科学2017，Vol.45Issue(7)：56-58,3.
热解温度对制备不同类型秸秆生物炭及其吸附去除Cu2+的影响
Effects of the Pyrolysis Temperature on Cu2+ Removal Efficiency and Different Kinds of Straw Biochars
摘要
Abstract
[Objective]To study the effects of the pyrolysis temperature on Cu2+ removal efficiency and different kinds of straw biochars.[Method]Three kinds of raw materials including rice,corn and sesame straw were used to prepare the biochars at the pyrolysis temperatures of 400-700 ℃ under the nitrogen atmosphere.Effects of the pyrolysis temperature on the structure,physicochemical property and Cu2+ removal efficiency of different kinds of straw biochars were investigated.[Result]The results showed that pH and specific area of straw biochars increased while yields of biochars decreased with increasing pyrolysis temperature,and their effects of pyrolysis temperature on rice and sesame series biochar were obvious.The adsorption efficiency of biochar on Cu2+ was related to the types and pyrolysis temperature of the straw raw material,and increasing the pyrolysis temperature was helpful to improve the adsorption rate of biochar on Cu2+ removal.Moreover,the removal rate of Cu2+ on rice and sesame straw biochars were higher than that on corn straw biochar.Among them,the removal rate of Cu2+ on rice and sesame biochar prepared at 700 ℃ can reach to 100%.[Conclusion]The study can provide scientific basis for controlling agricultural environmental pollution.关键词
秸秆生物炭/热解温度/Cu2+吸附去除/理化性质Key words
Straw biochar/Pyrolysis temperature/Adsorption and removal of Cu2+/Physicochemical property分类
资源环境引用本文复制引用
吕贵芬陈院华,杨涛,李建国,谢杰,胡美容..热解温度对制备不同类型秸秆生物炭及其吸附去除Cu2+的影响[J].安徽农业科学,2017,45(7):56-58,3.基金项目
江西省科技支撑项目(20151BBF60033) （20151BBF60033）
江西省农业科学院青年基金项目(2014CQN006) （2014CQN006）
江西省重点研发计划项目(2016ACF60023). （2016ACF60023）
