Home

Citation: Wang Yao, Wu Jun, Wei Fei, Jin Yong. Breaking and Flocculating Purification of Thin-long Carbon Nanotubes from Carbon Fibers[J]. Acta Physico-Chimica Sinica, ;2003, 19(04): 376-379. doi: 10.3866/PKU.WHXB20030421 shu

Breaking and Flocculating Purification of Thin-long Carbon Nanotubes from Carbon Fibers

1.
Department of Chemical Engineering, Tsinghua University, Beijing　100084

Received Date: 3 September 2002
Available Online: 15 April 2003

An efficient method for separating thin-long carbon nanotubes (CNTs)from carbon fibers is presented. The process involves grinding, dispersion, flocculating deposition and filtration treatments. SEM, TEM and TGA were used to evaluate the purification effect. The as-prepared CNTs specimen consists of large amounts of thin-long entangled CNTs that are 10～20 nm in outer diameter and some larger carbon fibers with diameters of more than 100 nm. After grinded, carbon fibers can be broken, while thin-long CNTs are undamaged. Dispersed in a water/surfactant solution under ultra-sonic treatment, most pieces of fibers and carbonaceous impurity were left suspended in a kinetically stable colloidal solution, while many thin-long CNTs flocculated into agglomerates and settled down. Most CNTs were extracted from the suspension as flocculated agglomerates leaving pieces of carbon fibers and other carbonaceous impurity in the filtrate. The purification mechanism is based on the difference of tensile strength and dispersibility of thin-long CNTs with that of carbon fibers.
- Carbon nanotubes;Carbon fibers;Purification;Dispersion;Flocculation
1. [1]
  Xinmeng Huang , Haoran Zhang , Mengxin Liu , Ying Miao , Zhenxi Yu , Qi Wu , Lei Pan . A densified conductive network of carbon nanotube-bridged vertical ZnO arrays for enhanced electromagnetic interference shielding, mechanical, and thermal properties of carbon fiber/polymer composites. Acta Physico-Chimica Sinica, 2026, 42(10): 100293-0. doi: 10.1016/j.actphy.2026.100293
2. [2]
  Jun Huang , Pengfei Nie , Yongchao Lu , Jiayang Li , Yiwen Wang , Jianyun Liu . 丝光沸石负载自支撑氮掺杂多孔碳纳米纤维电容器及高效选择性去除硬度离子. Acta Physico-Chimica Sinica, 2025, 41(7): 100066-0. doi: 10.1016/j.actphy.2025.100066
3. [3]
  Ying Li , Yushen Zhao , Kai Chen , Xu Liu , Tingfeng Yi , Li-Feng Chen . Rational Design of Cross-Linked N-Doped C-Sn Nanofibers as Free-Standing Electrodes towards High-Performance Li-Ion Battery Anodes. Acta Physico-Chimica Sinica, 2024, 40(3): 2305007-0. doi: 10.3866/PKU.WHXB202305007
4. [4]
  Wenyu Yuan , Ying Wang , Shuni Li , Xiaolin Zhu , Quanguo Zhai , Shengli Gao . Preparation and Purification of Alkali Metals. University Chemistry, 2026, 41(2): 218-231. doi: 10.12461/PKU.DXHX202502111
5. [5]
  Hailang JIA , Hongcheng LI , Pengcheng JI , Yang TENG , Mingyun GUAN . Preparation and performance of N-doped carbon nanotubes composite Co₃O₄ as oxygen reduction reaction electrocatalysts. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 693-700. doi: 10.11862/CJIC.20230402
6. [6]
  Haihua Yang , Minjie Zhou , Binhong He , Wenyuan Xu , Bing Chen , Enxiang Liang . Synthesis and Electrocatalytic Performance of Iron Phosphide@Carbon Nanotubes as Cathode Material for Zinc-Air Battery: a Comprehensive Undergraduate Chemical Experiment. University Chemistry, 2024, 39(10): 426-432. doi: 10.12461/PKU.DXHX202405100
7. [7]
  Xuewei Qian , Xingwen Sun , Houjin Li , Zhanxiang Liu , Yuan Zheng , Lin Wu , Shuanglian Cai , Ying Xiong , Guangao Yu , Qingwen Liu , Jie Han , Xin Du , Chengshan Yuan , Qihan Zhang , Shuyong Zhang , Jianrong Zhang . Basic Operations and Specification Suggestions for Organic Chemical Recrystallization Experiments. University Chemistry, 2025, 40(5): 66-75. doi: 10.12461/PKU.DXHX202503126
8. [8]
  Bowen Yang , Rui Wang , Benjian Xin , Lili Liu , Zhiqiang Niu . C-SnO₂/MWCNTs Composite with Stable Conductive Network for Lithium-based Semi-Solid Flow Batteries. Acta Physico-Chimica Sinica, 2025, 41(2): 100015-0. doi: 10.3866/PKU.WHXB202310024
9. [9]
  Jie Fu , Linghan Bai , Liqiu Chu , Hanyu Zou , Long Qin , Shuxin Jia , Meile Ni , Zhifan Hao , Mengxiao Sun , Fan Wu . Biomimetic "fibrous root systems" in phase-change composites for photothermal conversion and energy storage. Acta Physico-Chimica Sinica, 2026, 42(10): 100333-0. doi: 10.1016/j.actphy.2026.100333
10. [10]
  Shuhong Xiang , Lv Yang , Yingsheng Xu , Guoxin Cao , Hongjian Zhou . Selective electrosorption of Cs(Ⅰ) from high-salinity radioactive wastewater using CNT-interspersed potassium zinc ferrocyanide electrodes. Acta Physico-Chimica Sinica, 2025, 41(9): 100097-0. doi: 10.1016/j.actphy.2025.100097
11. [11]
  Xiufang Wang , Donglin Zhao , Kehua Zhang , Xiaojie Song . “Preparation of Carbon Nanotube/SnS₂ Photoanode Materials”: A Comprehensive University Chemistry Experiment. University Chemistry, 2024, 39(4): 157-162. doi: 10.3866/PKU.DXHX202308025
12. [12]
  Han WANG , Baihui CHEN , Chunlai WANG , Zhitao SHAO . Preparation and performance of lithium-sulfur battery of Ni₂P/carbon nanotube modified separator. Chinese Journal of Inorganic Chemistry, 2026, 42(5): 933-943. doi: 10.11862/CJIC.20250334
13. [13]
  Chen Pu , Daijie Deng , Henan Li , Li Xu . Fe_0.64Ni_0.36@Fe₃NiN Core-Shell Nanostructure Encapsulated in N-Doped Carbon Nanotubes for Rechargeable Zinc-Air Batteries with Ultralong Cycle Stability. Acta Physico-Chimica Sinica, 2024, 40(2): 2304021-0. doi: 10.3866/PKU.WHXB202304021
14. [14]
  Jie XIE , Hongnan XU , Jianfeng LIAO , Ruoyu CHEN , Lin SUN , Zhong JIN . Nitrogen-doped 3D graphene-carbon nanotube network for efficient lithium storage. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1840-1849. doi: 10.11862/CJIC.20240216
15. [15]
  Hanmei Lü , Xin Chen , Qifu Sun , Ning Zhao , Xiangxin Guo . Uniform Garnet Nanoparticle Dispersion in Composite Polymer Electrolytes. Acta Physico-Chimica Sinica, 2024, 40(3): 2305016-0. doi: 10.3866/PKU.WHXB202305016
16. [16]
  Qingyu Yang , Yuanhai Yu , Yanliu Wu , Ting Yang , Le Zhong , Wenhong Ruan , Jie Li . Digital Intelligence-Empowered Exploration of Copolymerized Polyacrylonitrile Synthesis and Application Experiments for Carbon Fiber Precursors. University Chemistry, 2026, 41(1): 41-56. doi: 10.12461/PKU.DXHX202506010
17. [17]
  Kexin Feng , Jie Zhang , Yujia Sun , Qiong Ai , Longchun Li . 乙酰二茂铁和二茂铁甲酰丙酮的合成、纯化及表征. University Chemistry, 2025, 40(8): 307-314. doi: 10.12461/PKU.DXHX202409045
18. [18]
  Yanqiu LI , Fang ZHAO , Yang YANG , Jing YU . PtRu/N-doped carbon nanofiber: Preparation and hydrogen evolution performance for water electrolysis. Chinese Journal of Inorganic Chemistry, 2026, 42(5): 1003-1014. doi: 10.11862/CJIC.20250238
19. [19]
  Zhanglin Shi , Tao Xiu , Xinmeng Mao , Jianfeng Wu , Baoliang Zhang . TCF/Co@NC复合纳米纤维的可控制备及其微波吸收性能. Acta Physico-Chimica Sinica, 2026, 42(11): 100306-. doi: 10.1016/j.actphy.2026.100306
20. [20]
  Yang Chen , Peng Chen , Yuyang Song , Yuxue Jin , Song Wu . Application of Chemical Transformation Driven Impurity Separation in Experiments Teaching: A Novel Method for Purification of α-Fluorinated Mandelic Acid. University Chemistry, 2024, 39(6): 253-263. doi: 10.3866/PKU.DXHX202310077

Get Citation

PDF

XML

Metrics

PDF Downloads(2414)
Abstract views(4341)
HTML views(54)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return