【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《不同活化方法对开心果壳活性炭的孔结构影响》，欢迎阅读！
不同活化方法对开心果壳活性炭的孔结构影响 陈虹霖;宋磊 【期刊名称】《华侨大学学报（自然科学版）》 【年(卷),期】2014(000)005 【摘 要】以开心果壳为原料制备活性炭，通过在-196℃下测定活性炭的氮气吸附等温线，探讨 ZnCl2法、KCl法以及ZnCl2？KCl？H2 O联合活化法对活性炭孔结构的影响．研究表明：ZnCl2法制备的开心果果壳活性炭以微孔为主，采用40％ZnCl2溶液浸渍，在500℃下活化1．5 h后得到的活性炭的比表面积为630 m2·g-1；单独KCl活化法不能起到较好的活化效果；对于ZnCl2活化法和KCl活化法，增加水蒸气活化都能增强活化效果，尤其对KCl活化的增强效果最为明显，使其比表面积增大近9倍，但其孔结构仍是微孔为主；ZnCl2？KCl？ H2 O联合活化法能有效增加活性炭的中孔，采用40％ZnCl2和6％KCl溶液浸渍，在900℃下活化1．5 h后得到的活性炭的中孔添加量为0．10 cm3·g-1，比表面为740 m2·g-1，中孔孔径集中在4 nm．%Activated carbons were prepared from Pistachio nut shells by using ZnCl2 ,KCl and ZnCl2?KCl?H2 O as activa-ting agents separately,and were tested at-1 9 6 ℃ to obtain the N2 adsorption isotherms to get the pore structure proper-ties.It showed that the pore structure of ZnCl2?activated carbons was mainly micropore,and the max BET area of the ac-tivated carbons was 630 m2 ·g-1 when impregnated with 40% ZnCl2 and activated at 500 ℃ for 1.5 h.While using KCl as activating agent alone,it could be hardly to obtain good activation effect.The activation effect was improved by intro-ducing vapor as the activating gas by using ZnCl2 and KCl as activating agent,which played a much more important played a much more important role on formation of new pores,especially for the method of KCl,and its BET area increased by a-bout 9 times,and the pore structure was mainly micropore.Mesopore was effectivlely donated by using ZnCl2?KCl?H2 O as a mixed activating agent.Under the condition of impregnating with 40% ZnCl2 and 6% KCl,the BET area of the acti-vated carbons was 740 m2 ·g-1 ,as well as the mesoporous volume was 0.10 m3 ·g-1 and the major pore size of meso-pores was about 4 nm when activated at 900 ℃ for 1.5 h. 【总页数】6页(P559-564) 【作 者】陈虹霖;宋磊 【作者单位】华侨大学 化工学院，福建 厦门 361021;华侨大学 化工学院，福建 厦门 361021 【正文语种】中 文 【中图分类】X705 【相关文献】 1.不同活化因素对秸秆活性炭孔结构的影响 [J], 杨可;李海红;薛慧;裴盼盼;刘雨倩 2.不同活化剂对石油焦基活性炭孔结构的影响 [J], 范慧;钱仁渊;金鸣林;郑玉丽 3.果壳活性炭孔结构定向调控及应用研究(摘要) [J], 孙康 4.澳洲坚果壳生物活性炭的活化调控及其吸波性能 [J], 崔海鹏;龙爱春;户本相;赵艳芳;宋喜梅;廖建和;廖禄生 5.不同磷酸活化工艺过程对活性炭孔结构的影响 [J], 王玉新;苏伟;周亚平 因版权原因，仅展示原文概要，查看原文内容请购买 本文来源：https://www.dywdw.cn/fba459b107a1b0717fd5360cba1aa81144318fc6.html
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2022-12-08
