By Carlos P. Bergmann, Fernando Machado Machado
This e-book provides a precis of the present use of carbon nanomaterials for water remedy, drug supply, platforms and nanosensors. the 1st bankruptcy elucidates the adsorption method phenomenon. additionally, the houses of alternative carbon nanomaterials for adsorption purposes are coated. The 3rd bankruptcy provides the kinetic and equilibrium versions of adsorption, processing of experimental facts and adsorption technique peculiarities. Environmental and organic functions of carbon nanomaterials are indexed within the final bankruptcy. This ebook is written from an application-oriented point of view and turns out to be useful for all these attracted to nanoadsorbents.
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Additional resources for Carbon Nanomaterials as Adsorbents for Environmental and Biological Applications
O’Connell JM (ed) (2006) Carbon nanotubes properties and applications. Yang C-M, Kaneko K, Yudasaka M, Iijima S (2002) Surface chemistry and pore structure of purified HiPco single-walled carbon nanotube aggregates. Niu JJ, Wang JN, Jiang Y, Su LF, Ma J (2007) An approach to carbon nanotubes with high surface area and large pore volume. Li F, Wang Y, Wang D, Wei F (2004) Characterization of single-wall carbon nanotubes by N2 adsorption. Yang QH, Hou PX, Bai S, Wang MZ, Cheng HM (2001) Adsorption and capillarity of nitrogen in aggregated multi-walled carbon nanotubes.
The most employed and discussed in the literature is the Langmuir equation . Other isotherm models such as Freundlich isotherm , Sips isotherm , Liu isotherm , Redlich–Peterson isotherm  are also well discussed in the literature. Adsorption kinetic studies are important in treatment of aqueous effluents because they provide valuable information on the mechanism of the adsorption process. Many kinetic models were developed in order to find intrinsic kinetic adsorption constants. In this chapter we will discuss the adsorption kinetic models based on the chemical reaction (pseudo-first order equation , pseudo-secondorder equation , general-order equation ), and the empiric models (Avrami fractionary model , and Elovich chemisorption model ).
C. Lima et al. 1 Introduction At a constant temperature, an adsorption isotherm describes the relationship between the amount of adsorbate adsorbed by the adsorbent (qe) and the adsorbate concentration remaining in solution after equilibrium is reached (Ce). The parameters from the adsorption equilibrium models provide useful pieces of information on the surface properties, adsorption mechanism and interaction between the adsorbent and adsorbate. There are numerous equations for describing the adsorption equilibrium of an adsorbate on an adsorbent.