scholarly journals Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution

2021 ◽  
pp. 100116
Author(s):  
Leshan Usgodaarachchi ◽  
Charitha Thambiliyagodage ◽  
Ramanee Wijesekera ◽  
Martin G. Bakker
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Rice Husk ◽  
Mesoporous Silica Nanoparticles ◽  
Amine Functionalization

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.

Conjugation-induced fluorescence labelling of mesoporous silica nanoparticles for the sensitive and selective detection of copper ions in aqueous solution

2014 ◽  
Vol 38 (12) ◽  
pp. 6017-6024 ◽  
Author(s):  
Jingjing Cui ◽  
Shangfeng Wang ◽  
Kai Huang ◽  
Yongsheng Li ◽  
Wenru Zhao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
High Selectivity ◽  
Copper Ions ◽  
Mesoporous Silica Nanoparticles ◽  
Selective Detection ◽  
Fluorescence Labelling

A newly developed fluorescent “on–off” chemosensor presents high selectivity towards Cu2+ with detection limit as low as 0.28 μM.

Removal of fluoride from aqueous solution by mesoporous silica nanoparticles functionalized with chitosan derived from mushroom

2020 ◽  
Vol 57 (9) ◽  
pp. 619-627
Author(s):  
Anushree Srivastava ◽  
Madhu Kumari ◽  
Alagappan Ramanathan ◽  
Kaliaperumal Selvaraj ◽  
Bablu Prasad ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles
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