Release Kinetics of Multiwalled Carbon Nanotubes Deposited on Silica Surfaces: Quartz Crystal Microbalance with Dissipation (QCM-D) Measurements and Modeling

2014 ◽  
Vol 48 (8) ◽  
pp. 4406-4413 ◽  
Author(s):  
Peng Yi ◽  
Kai Loon Chen
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Release Kinetics ◽  
Multiwalled Carbon ◽  
Silica Surfaces ◽  
Kinetics Of

AMIDE FUNCTIONALIZATION OF MULTIWALLED CARBON NANOTUBES AND THEIR EVALUATION FOR Hg(II) REMOVAL FROM WATER

2011 ◽  
Vol 10 (01n02) ◽  
pp. 205-208 ◽  
Author(s):  
R. K. MISRA ◽  
S. K. JAIN ◽  
THOMAS N. ABRAHAM ◽  
P. K. KHATRI
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Chemical Interaction ◽  
Mercury Removal ◽  
Multiwalled Carbon ◽  
Kinetics Of Adsorption ◽  
Reaction Rate Constants ◽  
Hydrophilic Character ◽  
Short Time ◽  
Kinetics Of

This paper deals with the amide functionalization of multiwalled carbon nanotubes (MWNTs) and its evaluation for mercury removal from water. The functionalized MWNTs were characterized using FTIR for structural modification. The properties of MWNTs such as hydrophilic character, nature of surface, selective chemical interaction with mercury, etc., were significantly improved after functionalization making them promising adsorbents for mercury removal. The equilibrium is achieved in short time of 5 h resulting in up to 80% removal of Hg (II). Kinetics of adsorption was established and found to follow first-order reversible kinetics with forward and backward reaction rate constants 0.6648 and 0.1662, respectively.

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