Synthesis of mesoporous silica nanoparticles derived from rice husk and surface-controlled amine functionalization for efficient adsorption of methylene blue from aqueous solution
Leshan Usgodaarachchi,Charitha Thambiliyagodage,R. D. Wijesekera,Martin G. Bakker +3 more
- Vol. 4, pp 100116
TLDR
In this article, mesoporous silica nanoparticles (MSN) were synthesized using rice husk (RH) as the raw material via sol-gel pathway using cetyltrimethylammonium bromide (CTAB) as structure directing agent.Abstract:
Mesoporous silica nanoparticles (MSN) were synthesized using rice husk (RH) as the raw material via sol-gel pathway using cetyltrimethylammonium bromide (CTAB) as the structure directing agent. Silica nanoparticles were successfully functionalized with 3-aminopropyl triethoxysilane (APTES) via in-situ and post functionalization methods. Synthesized nanoparticles were characterized by X-Ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and Brunauer-Emmett-Teller (BET) surface area analysis. The amorphous silica nanoparticles were of 50–60 nm in diameter with a surface area of 150 m2/g, pore volume of 0.237 cm3/g and average pore size of 3.62 nm. Morphology and textural parameters were changed upon functionalization. The equilibrium adsorption capacity of MSN-A (4.94 mg/g) to adsorb 10 mg/L methylene blue (MB), was higher than in amine functionalized silica nanoparticles. The influence of experimental factors such as pH, adsorbent dosage, and initial MB concentration on adsorption of MB to MSN-A were studied. The equilibrium data for MB adsorption on mesoporous silica nanoparticles well fitted to Langmuir equation, with a maximum monolayer capacity of 19.26 mg/g. The adsorption of MB could be best described by the pseudo-second order model. The results indicate that MSN-A is a potential mesoporous material fabricated by cheap natural resources to remove MB from aqueous solutions.read more
Citations
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Rice husk as bio-source of silica: preparation and characterization of silica bio-composites
TL;DR: In this article, a simple extraction procedure for preparing poly(lactic acid) bio-composites with differing filler contents (namely, 5, 10, 20 and 30 wt%).
Journal ArticleDOI
Adsorption behavior of rhamnolipid modified magnetic Co/Al layered double hydroxide for the removal of cationic and anionic dyes
TL;DR: In this article , magnetic rhamnolipid-Co/Al layered double hydroxide (MR-LDH) was synthesized to uptake methylene blue (MB) and reactive orange 16 (RO16) from aqueous solution.
Journal ArticleDOI
Adsorption behavior of rhamnolipid modified magnetic Co/Al layered double hydroxide for the removal of cationic and anionic dyes
TL;DR: In this article , magnetic rhamnolipid-Co/Al layered double hydroxide (MR-LDH) was synthesized to uptake methylene blue (MB) and reactive orange 16 (RO16) from aqueous solution.
Journal ArticleDOI
Agricultural and industrial waste-derived mesoporous silica nanoparticles: A review on chemical synthesis route
Nurina Adriana Abdul Razak,Nur Hidayati Othman,Muhammad Shafiq Mat Shayuti,Aidah Jumahat,Napisah Sapiai,Woei Jye Lau +5 more
TL;DR: In this paper , the mesoporous silica nanoparticles (MSNs) were synthesized from waste using a chemical synthesis route, which offers the possibility to control silica structure, phase, morphology, and sizes by fine tuning the reaction parameters/conditions.
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A Comprehensive Review of Synthesis, Applications and Future Prospects for Silica Nanoparticles (SNPs)
Faheem Akhter,Ahsan Atta Rao,Mahmood Abbasi,Shafeeque Ahmed Wahocho,Mukhtiar Ali Mallah,Hafiz Anees-ur-Rehman,Zubair A. Chandio +6 more
TL;DR: In this paper , the authors reviewed the most important and recent applications of silica nanoparticles in a number of fields along with synthetic approaches and presented the future prospects containing only few of the many gaps/research extensions regarding SNPs.
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