Bimodal porous silica microspheres decorated with polydopamine nano-particles for the adsorption of methylene blue in fixed-bed columns

2016 ◽  
Vol 470 ◽  
pp. 172-182 ◽  
Author(s):  
Taher Ataei-Germi ◽  
Ali Nematollahzadeh
Keyword(s):  
Methylene Blue ◽  
Fixed Bed ◽  
Porous Silica ◽  
Nano Particles ◽  
Silica Microspheres

Adsorption of Methylene Blue from Solution by Natural Zeolite in Fixed-Bed Column: Effect of Bed Depth

2012 ◽  
Vol 518-523 ◽  
pp. 3115-3119
Author(s):  
Yan Qiang Li ◽  
Xiao Feng Ren ◽  
Shao Hua Chen ◽  
Xiu Rong Zhao ◽  
Run Ping Han
Keyword(s):  
Methylene Blue ◽  
Natural Zeolite ◽  
Fixed Bed ◽  
Breakthrough Curves ◽  
Form Solution ◽  
Column Height ◽  
Nonlinear Regression Analysis ◽  
Adsorption Ability ◽  
Fixed Bed Column ◽  
Linear And Nonlinear

The effect of bed depth on adsorption ability of natural zeolite to removal methylene blue (MB) from aqueous solution in the fixed-bed column was studied. The results showed that the increase in column height favored the MB removal form solution. The equilibrium uptake of MB onto unit mass zeolite increased with the bed depth growth. The experimental data were fitted to Yan model using linear and nonlinear regression analysis, respectively. The experimental points and the predicted curves using the Yan model were compared and the error analysis was performed. The results indicated that Yan model were good to predict the breakthrough curves and both two methods can be used to obtain the parameters of Yan model and to predict the breakthrough curves.

Fixed Bed Reactor for Removal of Methylene Blue Dye Using Heterogeneous Fenton Catalyst

2020 ◽  
Vol 24 (4) ◽  
pp. 04020037 ◽  
Author(s):  
Suraj Punathil ◽  
Damodhar Ghime ◽  
Titikshya Mohapatra ◽  
Chandrakant Thakur ◽  
Prabir Ghosh
Keyword(s):  
Methylene Blue ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Heterogeneous Fenton ◽  
Fenton Catalyst ◽  
Heterogeneous Fenton Catalyst

Adsorption characteristics of methylene blue onto agricultural wastes lotus leaf in bath and column modes

2011 ◽  
Vol 64 (3) ◽  
pp. 654-660 ◽  
Author(s):  
Xiuli Han ◽  
Wei Wang ◽  
Xiaojian Ma
Keyword(s):  
Methylene Blue ◽  
Fixed Bed ◽  
Isotherm Models ◽  
Column Experiments ◽  
Fixed Bed Column ◽  
Lotus Leaf ◽  
Bed Height ◽  
Column Adsorption ◽  
Equilibrium Data ◽  
Leaf Powder

The adsorption potential of lotus leaf to remove methylene blue (MB) from aqueous solution was investigated in batch and fixed-bed column experiments. Langmuir, Freundlich, Temkin and Koble–Corrigan isotherm models were employed to discuss the adsorption behavior. The results of analysis indicated that the equilibrium data were perfectly represented by Temkin isotherm and the Langmuir saturation adsorption capacity of lotus leaf was found to be 239.6 mg g−1 at 303 K. In fixed-bed column experiments, the effects of flow rate, influent concentration and bed height on the breakthrough characteristics of adsorption were discussed. The Thomas and the bed-depth/service time (BDST) models were applied to the column experimental data to determine the characteristic parameters of the column adsorption. The two models were found to be suitable to describe the dynamic behavior of MB adsorbed onto the lotus leaf powder column.

scholarly journals Highly selective magnetic affinity purification of histidine-tagged proteins by Ni2+ carrying monodisperse composite microspheres

RSC Advances ◽  
2017 ◽  
Vol 7 (14) ◽  
pp. 8718-8726 ◽  
Author(s):  
Kouroush Salimi ◽  
Duygu Deniz Usta ◽  
İlkay Koçer ◽  
Eda Çelik ◽  
Ali Tuncel
Keyword(s):  
Affinity Chromatography ◽  
Protein Purification ◽  
Affinity Purification ◽  
Porous Silica ◽  
Immobilized Metal Affinity Chromatography ◽  
Silica Microspheres ◽  
Magnetic Sorbent ◽  
Metal Affinity ◽  
Composite Microspheres

A magnetic sorbent based on monodisperse-porous silica microspheres was developed for His-tagged protein purification by immobilized metal affinity chromatography.

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