CNT/PANI电极吸附去除水中Cu<sup>2+</sup>的研究

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Abstract

Polyaniline and carbon nanotube composites (CNT/PANI) were synthesized through in situ chemical oxidative polymerization method, the physicochemical properties of the composites were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV). Compared with the pure CNT, CNT covered by PANI had a smaller specific surface area and porosity, but had a higher specific capacitance. Experiments indicated that the removal efficiency of Cu²⁺ by CNT/PANI electrode was 4.24 times that by CNT electrode. The adsorbed amount of Cu²⁺ increased with the increase of the voltage, initial Cu²⁺ concentration and solution pH. The electrosorption of CNT/PANI electrodes for Cu²⁺ followed the pseudo-first-order kinetic model.

Key words： electrosorption CNT/PANI electrode Cu²⁺

Received: 20 April 2016

PACS:

X703.1

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	Articles by authors
	SHI Zhou
	JIN Zhao-qi
	DENG Lin
	WANG Li
	YUE Wen-hui

Cite this article:

SHI Zhou,JIN Zhao-qi,DENG Lin等. Electrosorption of Cu²⁺ in aqueous solution using CNT/PANI electrodes[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(12): 3650-3656.

URL:

http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2016/V36/I12/3650

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[1]	潘科,朱艾嘉,徐志斌,等.中国近海和河口环境铜污染的状况[J]. 生态毒理学报, 2014,9(4):618-631.
[2]	Davis T A, Volesky B, Vieira R. Sargassum seaweed as biosorbent for heavy metals[J]. Water Research, 2000,34(17):4270-4278.
[3]	邵利芬,杨玉杰,姚曙光,等.含铜电镀废水处理技术研究进展[J]. 工业用水与废水, 2007,38(3):13-15.
[4]	Zou L, Morris G, Qi D. Using activated carbon electrode in electrosorptive deionisation of brackish water[J]. Desalination, 2008,225(1):329-340.
[5]	Park K K, Lee J B, Park P Y, et al. Development of a carbon sheet electrode for electrosorption desalination[J]. Desalination, 2007, 206(1):86-91.
[6]	Li H, Pan L, Lu T, et al. A comparative study on electrosorptive behavior of carbon nanotubes and graphene for capacitive deionization[J]. J. Electroanal. Chem., 2011,653(1):40-44.
[7]	Huo X T, Zhu P, Han G Y, et al. Preparation and performance of carbon/polypyrrole membranes as an electrode in supercapacitors[J]. New Carbon Materials, 2013,28(6):414-420.
[8]	Zhang X T, Zhang J, Wang R M, et al. Surfactant-directed polypyrrole/CNT nanocables:Synthesis, Characterization, and Enhanced Electrical Properties[J]. Chem. Phys. Chem., 2004,5(7):998-1002.
[9]	Dai H, Shi L, Fang J, et al, NaCl adsorption in multi-walled carbon nanotubes, Materials Letters, 2005,59(16):1989-1992.
[10]	Chung S, Kang H, Ocon J.D, et al, Enhanced electrical and mass transfer characteri stics of acid-treated carbon nanotubes for capacitive deionization[J]. Current Applied Physics, 2015,15(11):1539-1544.
[11]	Rajendra Prasad K, Munichandraiah N. Fabrication and evaluation of 450F electrochemical redox supercapacitors using inexpensive and high-performance, polyaniline coated, stainless-steel electrodes[J]. Journal of Power Sources, 2002,112(2):443-451.
[12]	Park J H, Park O O. Hybrid electrochemical capacitors based on polyaniline and activated carbon electrodes[J]. Journal of Power Sources, 2002,111(1):185-190.
[13]	黄美荣,李新贵,李圣贤.聚萘二胺的合成及其对重金属离子的高效反应吸附[J]. 化学进展, 2005,17(2):299-309.
[14]	Li X G, Liu R, Huang M R. Facile synthesis and highly reactive silver ion adsorption of novel microparticles of sulfodiphenylamine and diaminonaphthalene copolymers[J]. Chemistry of materials, 2005, 17(22):5411-5419.
[15]	邓梅根,杨邦朝,胡永达,等.基于碳纳米管-聚苯胺纳米复合物的超级电容器研究[J]. 化学学报, 2005,63(12):1127-1130.
[16]	Yan C J, Zou L D, Short Rob, Single-walled carbon nanotubes and polyaniline composites for capacitive deionization, Desalination[J]. 2015,290:125-129.
[17]	Zhang J, Kong L B, Wang Bn, et al. In-situ electrochemical polymerization of multi-walled carbon nanotube/polyaniline composite films for electrochemical supercapacitors[J]. Synthetic Metals, 2009,159(3):260-266.
[18]	Han M G, Cho S K, Oh S G, et al, Preparation and characterization of polyaniline nanoparticles synthesized from DBSA micellar solution[J]. Synthetic Metals, 2002,126(1):53-60.
[19]	Snook G A, Kao P, Best A S. Conducting-polymer-based supercapacitor devices and electrodes[J]. Journal of Power Sources, 2011,196(1):1-12.
[20]	Chang M Y, Juang R S. Adsorption of tannic acid, humic acid, and dyes from water using the composite of chitosan and activated clay[J]. Journal of Colloid and Interface Science, 2004, 278(1):18-25.
[21]	Biesheuvel M, Van Limpt B, Van der Wal A. Dynamic adsorption/desorption process model for capacitive deionization[J]. The Journal of Physical Chemistry C, 2009,113(14):5636-5640.
[22]	房晓红.聚苯胺/碳复合材料的制备及去除水中重金属的性能研究[D]. 大连:大连理工大学, 2013.
[23]	施周,杨文浩,杨灵芳,等.等离子改性CNT/TiO2电极吸附去除水中苯酚的研究[J]. 中国环境科学, 2015,35(9):2664-2669.
[24]	杨灵芳,等离子强化碳纳米管及其复合物电极电容去除铅离子研究[D]. 长沙:湖南大学, 2015.
[25]	Chang M Y, Juang R S. Adsorption of tannic acid, humic acid, and dyes from water using the composite of chitosan and activated clay[J]. J. Colloid and Interface Science, 2004,278(1):18-25.