软模板法用壳聚糖制备富氮多孔碳材料  

Synthesis of Nitrogen-doped Porous Carbon Material with Chitosan by Soft Template Method

作　　者：冯妙娜 盖健楠 赵国英[1] 高洪苓[2] 张锁江[1] 

机构地区：[1]中国科学院过程工程研究所离子液体清洁过程北京市重点实验室,北京100190 [2]天津大学理学院化学系,天津300072

出　　处：《过程工程学报》2015年第3期536-540,共5页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金面上基金资助项目(编号:51374193);国际科技合作与交流专项基金资助项目(编号:2014DFA61670);国际(地区)合作与交流项目(编号:21210006);基金委重大研究计划基金资助项目(编号:91434203)

摘　　要：以壳聚糖溶液为原料、三嵌段两亲共聚物F127为软模板,采用一步法合成多孔碳氮材料,考察了复配溶液p H值及碳化温度等条件对材料孔结构、比表面积和吸附CO2的影响.结果表明,材料以介孔为主,比表面积最高达457 cm2/g,氮含量最高达7.60%,表面氮元素含量最高达8.45%,以吡啶类活泼价态形式存在,材料对CO2的吸附量最高达80.8 mg/g,吸附效率达0.274 mg/cm3.The porous carbon material was synthesized from amphiphilic copolymer pluronic F127 as soft template and protonated chitosan solution as raw material, and the effects of pH value of solution and carbonization temperature on its pore structure, specific surface area and CO2 adsorption capacity were examined. The result showed that the highest specific surface area of porous carbon material reached 457 cm2/g, its highest nitrogen content was 7.60%, and its highest surface nitrogen content 8.45% in the form of pyridine. Its highest CO2 adsorption capacity reached 80.8 mg/g, and the adsorption efficiency was up to 0.2.74 mg/cm3.

关 键 词：壳聚糖 碳材料 三嵌段共聚物F127 二氧化碳 吸附 

分 类 号：TB324[一般工业技术—材料科学与工程]