Adsorption efficiency of methylene blue from aqueous solution with amine-functionalized mesoporous silica nanospheres by co-condensation biphasic synthesis: adsorption condition and equilibrium studies

2018 ◽  
Vol 5 (6) ◽  
pp. 14079-14085 ◽  
Author(s):  
R. Chueachot ◽  
S. Wongkhueng ◽  
K. Khankam ◽  
A. Lakrathok ◽  
T. Kaewnon ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Mesoporous Silica ◽  
Silica Nanospheres ◽  
Adsorption Efficiency ◽  
Equilibrium Studies ◽  
Functionalized Mesoporous Silica ◽  
Amine Functionalized ◽  
Adsorption Condition ◽  
Mesoporous Silica Nanospheres

scholarly journals Investigating Methylene Blue Removal from Aqueous Solution by Cysteine-Functionalized Mesoporous Silica

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Abeer M. Beagan
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Methylene Blue ◽  
Mesoporous Silica ◽  
Mesoporous Silica Nanoparticles ◽  
Influential Factors ◽  
Functionalized Mesoporous Silica ◽  
Transmission Electron ◽  
Pseudo Second Order ◽  
The Stöber Method

In this study, mesoporous silica nanoparticles (MSNs) were synthesised using the Stober method and functionalised with cysteine (MSN-Cys) for removal of Methylene Blue (MB) from aqueous solution using the batch method. The adsorbent nanoparticles were characterised by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), FTIR, BET, and TGA. Several influential factors on the adsorption of MB onto the surface of MSN-Cys particles were investigated, including pH, initial concentration, and contact time. The adsorption capacity of MB from aqueous solution increased from circa 70 mg/g MSN-Cys in acidic media to circa 140 mg/g MSN-Cys in basic media. Adsorption isotherms and kinetic models of adsorption were used to clarify the adsorption process. The measured adsorption isotherm was fitted with a Freundlich model for all solutions, and the kinetic model was determined to be pseudo-second-order.

High performance polydopamine-functionalized mesoporous silica nanospheres for U(VI) removal

2017 ◽  
Vol 426 ◽  
pp. 1121-1132 ◽  
Author(s):  
Linfeng Bai ◽  
Shengxia Duan ◽  
Wanquan Jiang ◽  
Mei Liu ◽  
Sheng Wang ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
High Performance ◽  
Silica Nanospheres ◽  
Functionalized Mesoporous Silica ◽  
Mesoporous Silica Nanospheres
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