废旧织物制备活性炭对亚甲基蓝的吸附动力学

纺织学报 ›› 2016, Vol. 37 ›› Issue (12): 76-80.

废旧织物制备活性炭对亚甲基蓝的吸附动力学

收稿日期:2015-10-29 修回日期:2016-08-30 出版日期:2016-12-15 发布日期:2016-12-21

Adsorption kinetics of waste fabrics based activated carbon to methylene blue

Received:2015-10-29 Revised:2016-08-30 Online:2016-12-15 Published:2016-12-21

摘要/Abstract

摘要：

为研究以废旧织物为原料制备活性炭对亚甲基蓝的吸附性能及其吸附机制，以日常生活中废旧棉织物、黄麻织物和棉/亚麻混纺织物为原料，通过氮气将水蒸气送入高温管式炉进行活化制备活性炭材料，工艺条件为：活化温度７50 ℃，活化时间50 min，水蒸气载体流速240 L/h。通过分析活性炭的氮气吸附等温线，并利用BET 法计算活性炭的比表面积，用BJH 方程表征了活性炭的孔结构，同时重点考察了3 种活性炭样品对亚甲基蓝的吸附动力学。结果表明，棉、黄麻和棉/亚麻混纺3 种原料活性炭样品的比表面积分别为703.05、719.93、648.25 m²/g，亚甲基蓝饱和吸附量分别为341.49、267.13和242.68mg/g，而且3 种活性炭样品均更符合准二级动力学方程。

关键词: 废旧织物制备的活性炭, 水蒸气活化, 亚甲基蓝, 动力学

Abstract:

In order to study the adsorption properties and adsorption mechanism of waste cellulose based activated carbon to methylene blue, cellulose based activated carbons were prepare from waste cotton, waste jute and waste cotton/flax blended fabrics as raw materials by using steam as activating agent, carrying steam into a high temperature tubrlar furnace by N₂． The preparation process of activation temperature, activation time and N₂ flow rate were 750 ℃, 50 min and 240 L/h, respectively. The nitrogen gs adsorption-desorption isotherm of waste cellulose based activated carbons was achieved. The specific surface areas and pore size distribution were used to characterized waste cellulose based activated carbon. In addition, the adsorption kinetics of waste cellulose based activated carbon to methylene blue were studied in the experiment. The experimental results show that the waste cellulose based activated carbon is mesoporous material, and the specific surface areas of areas of activated carbon prepared from waste cotton, waste jute and waste cotton/flax (50/50) blend were 703.05, 719.93 and 648.25 m²/g, respectively, and the maximum methylene blue adsorption quantity of activated carbon prepared from waste cotton, waste jute and waste cotton/flax blend were 341.49, 267.13 and 242.68 mg/g, respectively. The adsorption of waste cellulose based activated carbon to methylene blue was in line with second order reaction kinetics.

Key words: waste fabric based activated carbon, steam activation, methylene blue, kinetics

张磊郝露徐山青. 废旧织物制备活性炭对亚甲基蓝的吸附动力学[J]. 纺织学报, 2016, 37(12): 76-80.

参考文献

相关文章 15

[1]	陈萌朱方龙 . 热辐射下织物内水分干燥实验及其动力学研究[J]. 纺织学报, 2018, 39(08): 52-57.
[2]	娄佳慧王锐张文娟董振峰朱志国张秀芹刘继广. 有机钛-硅催化剂合成聚酯的动力学研究[J]. 纺织学报, 2018, 39(07): 1-7.
[3]	易兵胡倩杨辉琼阳海李良臣区泽棠. 酸性红37光催化降解动力学的响应曲面法优化及其转化机制[J]. 纺织学报, 2018, 39(06): 81-88.
[4]	高慧英蒙冉菊华佳瑞邵碧琼刘琳姚菊明. 改性废棉对水溶液中Cu2+的吸附性能[J]. 纺织学报, 2017, 38(12): 112-118.
[5]	王晓春闫金龙张丽平赵国樑张健飞. 超高分子质量聚乙烯纤维分散染料染色性能[J]. 纺织学报, 2017, 38(11): 84-90.
[6]	王盼程隆棣华志宏. 刺辊锯齿螺旋倾角与分梳质量关系的理论研究[J]. 纺织学报, 2017, 38(09): 131-135.
[7]	周明星孟婥孙以泽孙旭东. 纤维定量检测系统中烧杯组件液体晃动动态特性与响应[J]. 纺织学报, 2017, 38(08): 132-138.
[8]	刘宜胜徐海亮吴震宇袁嫣红. 三维编织机运动仿真分析及其轨道优化设计[J]. 纺织学报, 2017, 38(04): 134-139.
[9]	戈欢朱志国王锐尹会会王睿张秀芹. 不同分子质量聚乳酸立体复合物的结晶性能及球晶形貌[J]. 纺织学报, 2016, 37(2): 27-0.
[10]	冯倩倩朱方龙信群陈萌. 膨胀型阻燃棉织物的热降解动力学[J]. 纺织学报, 2016, 37(12): 81-86.
[11]	石春乐陈炜杨以雄 . 快时尚品牌产品开发流程对时间绩效的影响[J]. 纺织学报, 2016, 37(10): 113-119.
[12]	张磊郝露徐山青. 废弃棉/亚麻混纺织物制备活性炭的性能[J]. 纺织学报, 2016, 37(08): 21-25.
[13]	张静静王颖宋丹国凤敏陈超. 聚对苯二甲酸乙二醇酯与聚对苯二甲酸丁二醇酯的热分解性能[J]. 纺织学报, 2016, 37(07): 34-38.
[14]	金国光秦凯旋魏展袁汝旺周国庆. 剑杆织机柔性从动件共轭凸轮打纬机构动力学分析[J]. 纺织学报, 2016, 37(05): 137-0.
[15]	徐念张彤王渊郝向举. 服装供应链系统动力学仿真[J]. 纺织学报, 2015, 36(04): 153-.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed