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<strong>Adsorption of hexavalent chromium (Cr(VI)) from wastewater using novel chitosan/halloysite clay nanocomposite films</strong>

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Title Statement <strong>Adsorption of hexavalent chromium (Cr(VI)) from wastewater using novel chitosan/halloysite clay nanocomposite films</strong>
 
Added Entry - Uncontrolled Name K S, Padmavathy ; Assistant Professor in Chemical Engineering, Government Engineering College, Thrissur-9
Murali, Amith ; Government Engineering College, Thrissur
G, Dr. Madhu ; Cochin University of Science and Technology
Sahoo, Dr. Dipak kumar ; School of Engineering, Cochin University, CUSAT, Kochi
Centre for Engineering Research and Development (CERD/RSM63/2012), established by Government of Kerala, India
 
Uncontrolled Index Term Adsorption; Chitosan; Halloysitenanoclay; Hexavalent chromium; Wastewater
 
Summary, etc. Nano composite films have been prepared in the laboratory by impregnating halloysitenanoclay on chitosan matrix. The functional groups present in the composite films have been investigated using Fourier transform infrared spectroscopy (FTIR) and morphological structure of the synthesized films are analysed using scanning electron microscopy (SEM). Thermo gravimetric analyser (TGA) is used for investigating the thermal stability of the composite. The films are used for adsorption of hexavalent chromium from wastewater. Optimum <em>p</em>H for adsorption is 3.0 and all other experiments are conducted at <em>p</em>H 3.0. It has been observed that adsorbent dosage required is very less when compared to pure chitosan as adsorbent. The adsorption capacity is also very high when compared with pure chitosan for removal of Cr (VI) under the same conditions. The equilibrium studies have been conducted and data is fitted to the Langmuir equation. The kinetic studies reveal that the adsorption mechanism is pseudo second order. The study shows that the chitosan/halloysite clay can be used as a promising adsorbent for hexavalent chromium uptake from wastewater
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2018-07-05 12:40:31
 
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http://op.niscair.res.in/index.php/IJCT/article/view/11866
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 24, ##issue.no## 6 (2017): Indian Journal of Chemical Technology
 
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