CARBON NANOTUBES-THE PROMISING ADSORBENT IN WASTEWATER TREATMENT

Carbon materials are a class of significant and widely used engineering adsorbent. As a new member of the carbon family, carbon nanotubes have exhibited great potentials in applications as composite reinforcements, field emitters for flat panel display, sensors, energy storage and energy conversion devices, and catalysts support phases, because of their extraordinary mechanical, electrical, thermal and structural properties. In particular, the large specific surface areas, as well as the high chemical and thermal stabilities, make carbon nanotubes an attractive adsorbent in wastewater treatment. The adsorption properties of the carbon nanotubes to a series of toxic agents, such as lead, cadmium and 1, 2-dichlorobenzene have been studied and the results show that carbon nanotubes are excellent and effective adsorbent for eliminating these harmful media in water. The effects of the morphologies and the surface status on the carbon nanotube adsorption capacities are also discussed.

[1]  Mason B. Tomson,et al.  Uptake and Sequestration of Naphthalene and 1,2-Dichlorobenzene by C60 , 2005 .

[2]  J. Bonevich,et al.  Synthesis, Characterization, and Adsorption Studies of Nanocrystalline Copper Oxide and Nickel Oxide , 2002 .

[3]  Z. Luan,et al.  ADSORPTION OF 1, 2-DICHLOROBENZENE FROM WATER TO CARBON NANOTUBES , 2003 .

[4]  Kong,et al.  Nanotube molecular wires as chemical sensors , 2000, Science.

[5]  Kyeongjae Cho,et al.  Ab Initio Study of Doped Carbon Nanotube Sensors , 2003 .

[6]  G. E. Speitel,et al.  Impact of natural organic matter on monochloramine reduction by granular activated carbon: the role of porosity and electrostatic surface properties. , 2006, Environmental science & technology.

[7]  Kun Yang,et al.  Adsorption of polycyclic aromatic hydrocarbons by carbon nanomaterials. , 2006, Environmental science & technology.

[8]  D. L. Baldwin,et al.  Single-walled carbon nanotube paper as a sorbent for organic vapor preconcentration. , 2006, Analytical chemistry.

[9]  Joselito M. Razal,et al.  Super-tough carbon-nanotube fibres , 2003, Nature.

[10]  V. C. Moore,et al.  Individually suspended single-walled carbon nanotubes in various surfactants , 2003 .

[11]  Shaojun Dong,et al.  In situ synthesis and characterization of multiwalled carbon nanotube/Au nanoparticle composite materials. , 2006, The journal of physical chemistry. B.

[12]  C. R. Martin,et al.  Carbon nanotubule membranes for electrochemical energy storage and production , 1998, Nature.

[13]  Yimin Zhao,et al.  Different morphologies of carbon nanotubes effect on the lead removal from aqueous solution , 2006 .

[14]  Ji Liang,et al.  Adsorption of fluoride from water by amorphous alumina supported on carbon nanotubes , 2001 .

[15]  Mason B. Tomson,et al.  Naphthalene Adsorption and Desorption from Aqueous C60 Fullerene , 2004 .

[16]  Cailu Xu,et al.  Adsorption of cadmium(II) from aqueous solution by surface oxidized carbon nanotubes , 2003 .

[17]  A. Alippi,et al.  Modulation of electrical properties in single-walled carbon nanotube/conducting polymer composites , 2005 .

[18]  Dehai Wu,et al.  Adsorption thermodynamic, kinetic and desorption studies of Pb2+ on carbon nanotubes. , 2005, Water research.

[19]  T. Swager,et al.  Signal Amplification of a “Turn-On” Sensor: Harvesting the Light Captured by a Conjugated Polymer , 2000 .

[20]  M. Valcárcel,et al.  Analytical potential of fullerene as adsorbent for organic and organometallic compounds from aqueous solutions. , 2000, Journal of chromatography. A.

[21]  H. Lezec,et al.  Electrical conductivity of individual carbon nanotubes , 1996, Nature.

[22]  Ji Liang,et al.  Preparation of ceria nanoparticles supported on carbon nanotubes , 2002 .

[23]  Yanqiu Zhu,et al.  Mechanical and NH3 sensing properties of long multi-walled carbon nanotube ropes , 2006 .