|本期目录/Table of Contents|

[1]吴文炳,张秀喜,陈建华.核桃壳大孔活性炭的微波制备及对Pb(Ⅱ)和染料的共吸附[J].江苏农业科学,2016,44(12):461-464.
 Wu Wenbing,et al.Coadsorption of Pb(Ⅱ) and dye on macroporous activated carbon prepared from walnut shell by microwave radiation[J].Jiangsu Agricultural Sciences,2016,44(12):461-464.
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核桃壳大孔活性炭的微波制备
及对Pb(Ⅱ)和染料的共吸附
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第44卷
期数:
2016年12期
页码:
461-464
栏目:
资源与环境
出版日期:
2016-12-25

文章信息/Info

Title:
Coadsorption of Pb(Ⅱ) and dye on macroporous activated carbon prepared from walnut shell by microwave radiation
作者:
吴文炳张秀喜陈建华
闽南师范大学化学与环境学院,福建漳州 363000
Author(s):
Wu Wenbinget al
关键词:
核桃壳大孔活性炭磷酸钠盐微波辐射Pb(Ⅱ)亚甲基蓝
Keywords:
-
分类号:
TQ424.1
DOI:
-
文献标志码:
A
摘要:
以废弃核桃壳为碳源,以酸洗回收液制得的磷酸钠盐为活化剂,用微波辐射法制备大孔型活性炭,采用扫描电子显微镜scanning electron microscope,SEM、X射线光电子能谱X-ray photoelectron spectroscopy,XPS、Brunauer & Emmett & TellerBET技术对活性炭进行表征,并考察大孔活性炭对Pb(Ⅱ)和亚甲基蓝阳离子的共吸附平衡和再生。结果表明:最佳制备条件为浸渍时间24 h、辐射时间15 min、微波功率720 W、活化剂浓度2 mol/L,该条件下活性炭的产率为296%,碘吸附值为1 095.3 mg/g,比表面积为1 824.9 m1,2,32/g,N2吸附/脱附等温线符合国际纯粹与应用化学联合会international union of pure and applied chemistry,IUPAC推荐的Ⅱ型等温线,具有大孔型吸附剂特征,电子能谱显示该活性炭表面具有磷酸根、羧基、羟基等功能基团,从而促使活性炭络合吸附 Pb(Ⅱ) 和亚甲基蓝。吸附研究结果表明:核桃壳基活性炭对Pb(Ⅱ)和亚甲基蓝的吸附更适用Freundlich模型,且Langmuir平衡吸附量分别为4366、85.40 mg/g,其中对Pb(Ⅱ)的吸附受亚甲基蓝浓度的影响较大。活性炭经过4次再生回用后,对Pb(Ⅱ)、亚甲基蓝的解吸率分别达90.6%、82.7%,再次吸附量分别保持在首次吸附量的79.5%、70.8%,说明该活性炭再生能力较好,可降低污染物的处理成本。
Abstract:
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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-11-03
基金项目:福建省自然科学基金(编号:2014J01204);福建省教育厅科技计划 (编号:JA12215);福建省漳州市自然科学基金 (编号:ZZ2013J05)。
作者简介:吴文炳(1981—),男,福建泉州人,硕士研究生,讲师,主要从事生物质吸附材料与污染物处理技术研究。Tel:(0596)2591445;E-mail:wwb_nanan99@126.com。
更新日期/Last Update: 2016-12-25