Removal of methylene blue from aqueous solution by adsorption onto zeolite synthesized from coal fly ash and its thermal regeneration

2010 ◽  
Vol 85 (6) ◽  
pp. 845-850 ◽  
Author(s):  
Zhi Sun ◽  
Chunjie Li ◽  
Deyi Wu
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Coal Fly Ash ◽  
Thermal Regeneration

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 Adsorption of Methylene Blue from Aqueous Solution on High Lime Fly Ash: Kinetic, Equilibrium, and Thermodynamic Studies

2012 ◽  
Vol 33 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Serkan Keleşoğlu ◽  
Mürşide Kes ◽  
Leman Sütçü ◽  
Hürriyet Polat
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Thermodynamic Studies ◽  
Kinetic Equilibrium

scholarly journals Removal of Phenol from Aqueous Solution by Adsorption on to Coal Fly Ash

1996 ◽  
Vol 13 (6) ◽  
pp. 527-536 ◽  
Author(s):  
L.J. Alemany ◽  
M.C. Jiménez ◽  
M.A. Larrubia ◽  
F. Delgado ◽  
J.M. Blasco
Keyword(s):  
Aqueous Solution ◽  
Fly Ash ◽  
Removal Efficiency ◽  
Ph Value ◽  
Coal Fly Ash ◽  
Solid Wastes ◽  
Power Stations ◽  
Different Temperatures ◽  
Coal Power ◽  
Coal Power Stations

The present work examines the possible use of fly ash, a byproduct of coal power stations, as a means of removing phenol from water, or equivalently, of restricting its movement in solid wastes or soil. Equilibrium experiments were performed to evaluate the removal efficiency of fly ash. The adsorption experiments were undertaken using fly ash treated at three different pH levels and with three different temperatures. The results indicate that although phenol can be removed from water, this depends markedly on the temperature and pH value of the treatment solution employed.

Methylene blue adsorption properties of mechanochemistry modified coal fly ash

2018 ◽  
Vol 24 (8) ◽  
pp. 2133-2141 ◽  
Author(s):  
Hui Li ◽  
Mingwei Dai ◽  
Shunli Dai ◽  
Xinju Dong ◽  
Feng Li
Keyword(s):  
Methylene Blue ◽  
Fly Ash ◽  
Coal Fly Ash ◽  
Adsorption Properties ◽  
Methylene Blue Adsorption

Thermodynamic and kinetic studies for the removal of safranin dye from aqueous solution using nap zeolite synthesized from coal fly ash

2021 ◽  
Author(s):  
Payal Jain ◽  
Priyanka Shrivastava ◽  
Vibha Malviya ◽  
Bijendra Rai ◽  
M. K. Dwivedi
Keyword(s):  
Aqueous Solution ◽  
Fly Ash ◽  
Coal Fly Ash ◽  
Kinetic Studies

Removal of Tannin from Aqueous Solution by Adsorption onto Treated Coal Fly Ash: Kinetic, Equilibrium, and Thermodynamic Studies

2013 ◽  
Vol 52 (45) ◽  
pp. 15923-15931 ◽  
Author(s):  
Huiqin Li ◽  
Guohe Huang ◽  
Chunjiang An ◽  
Jingtao Hu ◽  
Siqi Yang
Keyword(s):  
Aqueous Solution ◽  
Fly Ash ◽  
Coal Fly Ash ◽  
Thermodynamic Studies ◽  
Kinetic Equilibrium

Synthesis of Zeolite Membranes from Coal Fly Ash

2011 ◽  
Vol 383-390 ◽  
pp. 1749-1752
Author(s):  
Shigeo Shirakura ◽  
Shukuhei Kojima ◽  
Kazuhiro Tanaka ◽  
Hidetoshi Kita
Keyword(s):  
Aqueous Solution ◽  
Fly Ash ◽  
Hydrothermal Treatment ◽  
Coal Fly Ash ◽  
Xrd Analysis ◽  
Organic Liquids ◽  
Zeolite Membranes ◽  
Sem Observation ◽  
Porous Supports ◽  
Optimized Conditions

Zeolite membranes were successfully synthesized from coal fly ash by hydrothermal treatment onto 10-cm-long tubular porous supports. The membranes were characterized from XRD analysis, SEM observation and the pervaporation performance. Under the optimized conditions, LTA-type membrane from coal fly ash showed fairly efficient for the dehydration of organic liquids. The maximum selectivity reached more than 3000 with accompanying flux as high as 3.0 kg/(m2•h) for separation of 90 wt% EtOH aqueous solution at 75 °C.

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