聚羟基丁酸酯/碳纳米管复合纳米纤维膜的制备及其对重金属离子吸附分离性能的研究

刘元培; 张青; 任杰; 郭杰; 蔡志江

doi:10.11777/j.issn1000-3304.2017.16217

您当前的位置：

首页 >

文章列表页 >

聚羟基丁酸酯/碳纳米管复合纳米纤维膜的制备及其对重金属离子吸附分离性能的研究

研究论文 | 更新时间：2021-03-19

- 聚羟基丁酸酯/碳纳米管复合纳米纤维膜的制备及其对重金属离子吸附分离性能的研究
- Preparation of Polyhydroxybutyrate/Carbon Nanotubes Composite Nanofiber Membrane and Their Adsorption Performance for Heavy Metal Ions
- 高分子学报 2017年第5期页码：820-829
- 作者机构：
  
  1.天津工业大学纺织学院天津 300387
  2.先进纺织复合材料教育部重点实验室天津工业大学天津 300387
- 作者简介：
  
  蔡志江, E-mail:zhijiangcai@sina.comZhi-jiang Cai, E-mail:zhijiangcai@sina.com
- 基金信息：
  
  天津市科技计划项目(14TXGCCX00014)
- DOI：10.11777/j.issn1000-3304.2017.16217
  中图分类号：
- 纸质出版日期：2017-5，
  
  收稿日期：2016-6-30，
  
  修回日期：2016-7-28，
扫描看全文
刘元培, 张青, 任杰, 郭杰, 蔡志江. 聚羟基丁酸酯/碳纳米管复合纳米纤维膜的制备及其对重金属离子吸附分离性能的研究[J]. 高分子学报, 2017,(5):820-829.

Yuan-pei Liu, Qing Zhang, Jie Ren, Jie Guo, Zhi-jiang Cai. Preparation of Polyhydroxybutyrate/Carbon Nanotubes Composite Nanofiber Membrane and Their Adsorption Performance for Heavy Metal Ions[J]. Acta Polymerica Sinica, 2017,(5):820-829.
刘元培, 张青, 任杰, 郭杰, 蔡志江. 聚羟基丁酸酯/碳纳米管复合纳米纤维膜的制备及其对重金属离子吸附分离性能的研究[J]. 高分子学报, 2017,(5):820-829. DOI： 10.11777/j.issn1000-3304.2017.16217.

Yuan-pei Liu, Qing Zhang, Jie Ren, Jie Guo, Zhi-jiang Cai. Preparation of Polyhydroxybutyrate/Carbon Nanotubes Composite Nanofiber Membrane and Their Adsorption Performance for Heavy Metal Ions[J]. Acta Polymerica Sinica, 2017,(5):820-829. DOI： 10.11777/j.issn1000-3304.2017.16217.

摘要

以聚羟基丁酸酯和碳纳米管为原料，采用三氯甲烷/二甲基甲酰胺混合溶液为溶剂，利用静电纺丝技术制备了聚羟基丁酸酯/碳纳米管复合纳米纤维膜.研究了碳纳米管的含量对纳米纤维膜形貌和力学性能的影响，探讨了复合纳米纤维膜对重金属Cu（Ⅱ）、Cd（Ⅱ）和Pb（Ⅱ）的吸附特性.实验结果表明：加入1 wt%碳纳米管能够将纳米纤维的平均直径从（728±146）nm降低至（468±89）nm，纳米纤维膜的比表面积从27.24 m

/g提高至43.45 m

/g；碳纳米管的复合能够有效增强聚羟基丁酸酯纳米纤维，当碳纳米管含量1 wt%为最佳，拉伸强度可达5.85 MPa，较纯聚羟基丁酸酯纳米纤维提升了115%.复合纳米纤维膜对重金属离子具有良好的吸附特性，其对Cu（Ⅱ）、Cd（Ⅱ）和Pb（Ⅱ）的最佳吸附pH值为5，此时最大吸附容量分别为91.04、171.05和197.03 mg/g，平衡吸附时间分别约为50、60和60 min，吸附率分别为1.79、2.83和3.28 mg/g/min；热力学和动力学分析表明，复合纳米纤维膜对重金属Cu（Ⅱ）、Cd（Ⅱ）和Pb（Ⅱ）的吸附行为更符合Freundlich模型，吸附过程更符合Pseudo-second order模型；循环使用实验表明，重复使用5次后，其吸附容量可保持在初始值的87%以上，具有较好的使用寿命.

Abstract

Polyhydroxybutyrate/carbon nanotubes composite nanofiber membrane was successfully prepared via electrospinning technique using polyhydroxybutyrate and carbon nanotubes as raw materials and chloroform/dimethylformamide blend as co-solvent. The effect of carbon nanotube content on the membrane's morphology and mechanical properties was investigated

and its adsorption performance to heavy metal ions was evaluated. Increasing the content of carbon nanotubes from 0 to 1 wt%

it was found that the average diameter of composite nanofibers decreased from (728±146) nm to (468±89) nm while their specific surface area increased from 27.24 m

/g to 43.45 m

/g; meanwhile

the nanofiber membrane was significantly strengthened with the optimum mechanical performance obtained at the content equal to 1 wt%. A tensile stress of 5.85 MPa was achieved then

which was about 115% improvement compared with the pure polyhydroxybutyrate nanofiber membrane. Good adsorption performance was exhibited by the composite nanofiber membrane for Cu (Ⅱ)

Cd (Ⅱ) and Pb (Ⅱ) ions from aqueous solution. Under the optimum pH of 5

the maximum adsorption capacity was measured as about 91.04

171.05 and 197.03 mg/g for Cu (Ⅱ)

Cd (Ⅱ) and Pb (Ⅱ) ions

respectively; the corresponding equilibrium time and adsorption rate were about 50

60 and 60 min and 1.79

2.83 and 3.28 mg/g/min

respectively. Langmuir

Freundlich and Temkin models were used to analyze the thermodynamics parameters during adsorption while Pseudo-first-order

Pseudo-second-order and Intraparticle diffusion models were applied for analysis of the kinetics parameters. It was indicated that the adsorption isotherm data fitted well with Freundlich model and the kinetic process matched Pseudo-second order model. Cycle experiments demonstrated that above 87% of initial adsorption capacity could be maintained after 5 times of usage

which suggested the nanofiber membrane's potential of applications in wastewater treatment for the removal of heavy metal ions as a nano-adsorbent.

关键词

聚羟基丁酸酯碳纳米管复合纳米纤维重金属离子吸附

Keywords

PolyhydroxybutyrateCarbon nanotubesComposite nanofiberHeavy metal ionsAdsorption

references

H Chanki , R A Jungki , P C Beum . . Biochemistry , 2007 . 46 6118 - 6125 . DOI:10.1021/bi7000032http://doi.org/10.1021/bi7000032.

M Petersková , C Valderrama , O Gibert , J L Cortina . . Desalination , 2012 . 286 316 - 323 . DOI:10.1016/j.desal.2011.11.042http://doi.org/10.1016/j.desal.2011.11.042.

J Khan , B P Tripathi , A Saxena , V K Shahi . . Electrochim Acta , 2007 . 52 6719 - 6727 . DOI:10.1016/j.electacta.2007.04.085http://doi.org/10.1016/j.electacta.2007.04.085.

H Yan , A Moriya , T Maruyama , Y Ohmukai , H Matsuyama . . J Membrane Sci , 2011 . 376 247 - 253 . DOI:10.1016/j.memsci.2011.04.035http://doi.org/10.1016/j.memsci.2011.04.035.

T H Shek , A Ma , V K C Lee , G Mckay . . Chem Eng J , 2009 . 146 63 - 70 . DOI:10.1016/j.cej.2008.05.019http://doi.org/10.1016/j.cej.2008.05.019.

C W Li , Y M Chen , S T Hsiao . . Chemosphere , 2008 . 71 51 - 58 . DOI:10.1016/j.chemosphere.2007.10.050http://doi.org/10.1016/j.chemosphere.2007.10.050.

M Anbia , M Haqshenas . . Int J Environ Sci Technol , 2015 . 12 1 - 16 . DOI:10.1007/s13762-013-0421-yhttp://doi.org/10.1007/s13762-013-0421-y.

G Zhao , X Zhang , T J Lu , F Xu . . Adv Funct Mater , 2015 . 25 5726 - 5738 . DOI:10.1002/adfm.201502142http://doi.org/10.1002/adfm.201502142.

Y Xu , Y Zhu , F Han , C Luo , C Wang . . Adv Energy Mater , 2015 . 5 .

S Liang , X He , F Wang , W Geng , X Fu , J Ren . . Sensors Actuat B Che , 2015 . 208 363 - 368 . DOI:10.1016/j.snb.2014.11.035http://doi.org/10.1016/j.snb.2014.11.035.

Y Li , J Zhang , C Xu , Y Zhou . . Sci China Chem , 2016 . 59 95 - 105.

T Xiang , Z L Zhang , H Q Liu , Z Z Yin , L I Lei , X M Liu . . Sci China , 2013 . 5 567 - 575.

Q Feng , B Tang , Q Wei , D Hou , S Bi , A Wei . . Int J Mol Sci , 2012 . 13 12734 - 12746 . DOI:10.3390/ijms131012734http://doi.org/10.3390/ijms131012734.

A A Taha , J Qiao , F Li , B Zhang . . J Environ Sci , 2012 . 24 610 - 646 . DOI:10.1016/S1001-0742(11)60806-1http://doi.org/10.1016/S1001-0742(11)60806-1.

R Zhao , X Li , B Sun , M Shen , X Tan , Y Ding . . Chem Eng J , 2015 . 268 290 - 299 . DOI:10.1016/j.cej.2015.01.061http://doi.org/10.1016/j.cej.2015.01.061.

L Ping , Y L Hsieh . . Appl Mater Inter , 2010 . 2 2413 - 2420 . DOI:10.1021/am1004128http://doi.org/10.1021/am1004128.

Y Q Wan , J H He , J Y Yu . . Polym Int , 2007 . 56 1367 - 1370 . DOI:10.1002/(ISSN)1097-0126http://doi.org/10.1002/(ISSN)1097-0126.

S M Kim , S H Kim , M S Choi , J Y Lee . . J Nanosci Nanotechno , 2016 . 16 2908 - 2911 . DOI:10.1166/jnn.2016.11088http://doi.org/10.1166/jnn.2016.11088.

J Ayutsede , M Gandhi , S Sukigara , H Ye , C M Hsu , Y Gogotsi . . Biomacromolecules , 2006 . 7 208 - 214 . DOI:10.1021/bm0505888http://doi.org/10.1021/bm0505888.

更多指标>

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

基于静电纺丝的类海绵体材料用于溶菌酶的吸附行为

多相可控的超分子多孔吸附剂对污染物的吸附和分离功能的探索

基于Diels-Alder反应的热可逆高导电硅橡胶/碳管复合材料的制备

季铵化木质素与纳米二氧化钛协同稳定的双重pH响应性Pickering乳液