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磷酸微波法制备梧桐树叶活性炭及其性能研究
引用本文:吕春芳,;王婕,;高盼盼.磷酸微波法制备梧桐树叶活性炭及其性能研究[J].应用化工,2014(5):824-826.
作者姓名:吕春芳  ;王婕  ;高盼盼
作者单位:[1]长安大学环境科学与工程学院,陕西西安710054; [2]西安工程大学环境与化学工程学院,陕西西安710048
基金项目:国家水体污染控制与治理科技重大专项(2008zx-07212-002-005-004);高等学校博士学科点专项科研基金(20110205110014)
摘    要:以梧桐树叶为原料,采用磷酸活化,微波辐照的方法制备活性炭,设计正交实验以考察微波功率、活化时间、磷酸浓度、液固比等因素对活性炭吸附性能的影响。结果表明,最佳工艺参数为:微波功率640 W,活化时间280 s,液固比7∶1(mL/g),磷酸浓度为60%。该条件下制备的活性炭的碘值为451.88 mg/g,亚甲基蓝值为15.126 2 mg/g。用其处理城市生活污水,取得了很好的效果。

关 键 词:梧桐树叶  磷酸  微波  活性炭

Study on preparation and properties of activated carbon from Chinese parasol leaves by phosphoric acid-microwave method
L Chun-fang;WANG Jie;GAO Pan-pan.Study on preparation and properties of activated carbon from Chinese parasol leaves by phosphoric acid-microwave method[J].Applied chemical industry,2014(5):824-826.
Authors:L Chun-fang;WANG Jie;GAO Pan-pan
Affiliation:Lv Chun-fang, WANG Jie, GAO Pan-pan ( 1. School of Environmental Science and Engineering, Chang' an University, Xi' an 710054, China ; 2. School of Environment and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, China)
Abstract:Activated carbons were prepared from the Chinese parasol leaves,using phosphoric acid activa-tion and microwave irradiation to get. The influence of microwave power,irradiation time,the concentration of phosphoric acid,liquid-solid ratio,etc. on activated carbon adsorption properties were studied. The re-sults show that the optimal process for preparation are obtained as following:microwave power is 640 W, irradiation time is 280 s,liquid-solid ratio is 7: 1(mL/ g),phosphoric acid concentration is 60% . The io-dine value of activated carbon is 451. 88 mg / g,methylene blue value is 15. 126 2 mg / g. This activated carbons is used to treat municipal wastewater,and the effect of adsorption is satisfactory.
Keywords:Chinese parasol leaves  phosphoric acid  microwave  activated carbon
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