Preconcentration of Uranium(VI) from Aqueous Solution by Amidoxime‐Functionalized Microspheres Silica Material: Kinetics, Isotherm and Mechanism Study

2018 ◽  
Vol 3 (43) ◽  
pp. 12346-12356 ◽  
Author(s):  
Jiang Xiao ◽  
Yan Jing ◽  
Xingquan Wang ◽  
Ying Yao ◽  
Yongzhong Jia
Keyword(s):  
Aqueous Solution ◽  
Mechanism Study ◽  
Silica Material

scholarly journals Adsorptive removal of methylene blue from aqueous solution using coal fly ash-derived mesoporous silica material

2019 ◽  
Vol 37 (3-4) ◽  
pp. 333-348 ◽  
Author(s):  
Ning Yuan ◽  
Hui Cai ◽  
Tian Liu ◽  
Qi Huang ◽  
Xinling Zhang
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Mesoporous Silica ◽  
Coal Fly Ash ◽  
Nitrogen Adsorption ◽  
Mesoporous Silica Material ◽  
Adsorptive Removal ◽  
Silica Material ◽  
Adsorption Desorption

In the present work, coal fly ash-derived mesoporous silica material (CFA-MS) has been successfully fabricated without employing any extra silica source. The obtained CFA-MS was characterized by Fourier transform infrared spectroscopy, nitrogen adsorption–desorption measurement, powder X-ray diffraction and transmission electron microscopy. Nitrogen adsorption–desorption measurement disclosed that CFA-MS possesses Brunauer–Emmett–Teller-specific surface area of 497 m2·g−1 and pore volume of 0.49 cm3·g−1, respectively. Furthermore, CFA-MS was evaluated for the adsorptive removal of methylene blue from aqueous solution. Several influence parameters on the removal of methylene blue including contact time, pH, initial concentration and temperature were studied in detail. Moreover, Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models were employed for interpretation of the adsorption process, while the pseudo-first-order and pseudo-second-order kinetics equations were applied to investigate the adsorption kinetics. Results in the current work demonstrate that CFA-MS can be used as an efficient adsorbent for methylene blue removal.

scholarly journals Detection and Removal of Hg2+ Based on Mesoporous Silica Material Functionalized by Naphthalimide in Aqueous Solution

2014 ◽  
Vol 30 (2) ◽  
pp. 257-262 ◽  
Author(s):  
Yong-Fei LI ◽  
Yuan-Feng WEI ◽  
Ying TAN ◽  
Xue-Fei KONG ◽  
Kai ZHOU ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Mesoporous Silica ◽  
Mesoporous Silica Material ◽  
Silica Material
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