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<strong>A low-cost adsorbent (wheat plant ash) prepared from agricultural waste for removal of paraquat from aqueous solutions</strong>

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Title Statement <strong>A low-cost adsorbent (wheat plant ash) prepared from agricultural waste for removal of paraquat from aqueous solutions</strong>
 
Added Entry - Uncontrolled Name Mandavgane, Sachin A; Department of Chemical Engineering Visvesvaraya National Institute of Technology, Nagpur
Science and Engineering Research Board, India, ( No. SB/S3/CE/077/ 2013)
 
Uncontrolled Index Term Adsorbate; Adsorbent; Adsorption; Paraquat; Wheatplant ash
 
Summary, etc. A low-cost adsorbent (wheat plant ash) has been prepared using a common agricultural waste (wheat straw) and its physicochemical characteristics, including chemical, physical, mineralogical, and morphological, and adsorption efficacy are investigated. WPA is characterized by SEM (scanning electron microscopy), CHNS(ultimate analysis) analysis, Brunauer–Emmett–Tellersurface area technique, and Fourier transform infrared method. The BET surface area of wheat plant ash was found to be 37 m<sup>2</sup>/g. To evaluate its adsorption capacity, paraquat is chosen as the adsorbate. Batch adsorption is performed by varying adsorbent dosage, initial concentration, and contact time. Experimental data are fitted to both kinetic and isotherm models. Pseudo-first-order and pseudo-second-order kinetic models are applied to experimental data, which indicated that the latter model had the best fit. Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich isotherm models are then applied to the equilibrium data. The adsorption capacity of WPA for paraquat removal, determined using the Langmuir isotherm, is found to be approximately 241.3 mg/m<sup>2</sup> at 303 K.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2020-08-21 12:30:09
 
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http://op.niscair.res.in/index.php/IJCT/article/view/17289
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 27, ##issue.no## 1 (2020): Indian Journal of Chemical Technology
 
Language Note en