scholarly journals Synthesis of poly(amidoamine)-graft-poly(methyl acrylate) magnetic nanocomposite for removal of lead contaminant from aqueous media

2016 ◽  
Vol 13 (10) ◽  
pp. 2437-2448 ◽  
Author(s):  
A. Pourjavadi ◽  
A. Abedin-Moghanaki ◽  
S. H. Hosseini
Keyword(s):  
Methyl Acrylate ◽  
Aqueous Media ◽  
Magnetic Nanocomposite

A new functionalized magnetic nanocomposite of poly(methylacrylate) for the efficient removal of anionic dyes from aqueous media

RSC Advances ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 7982-7989 ◽  
Author(s):  
Ali Pourjavadi ◽  
Azardokht Abedin-Moghanaki ◽  
Seyed Amirhossein Nasseri
Keyword(s):  
Methyl Ester ◽  
Radical Polymerization ◽  
Methyl Acrylate ◽  
Active Sites ◽  
Aqueous Media ◽  
Magnetic Nanocomposite ◽  
Efficient Removal ◽  
Anionic Dyes ◽  
Nano Adsorbent

A magnetic nano-adsorbent was synthesized via the radical polymerization of methyl acrylate on modified Fe3O4 MNPs, followed by amidation of the methyl ester groups using pentaethylenehexamine, to create active sites for adsorption of anionic dyes.

scholarly journals Effective Removal of Malachite Green from Aqueous Solutions Using Magnetic Nanocomposite: Synthesis, Characterization, and Equilibrium Study

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Ali Q. Alorabi
Keyword(s):  
Surface Area ◽  
Malachite Green ◽  
Chemical Activation ◽  
Aqueous Media ◽  
Kinetic Studies ◽  
Cost Effective ◽  
Magnetic Nanocomposite ◽  
Bet Surface Area ◽  
Isotherm Models ◽  
Order Kinetic

In this work, magnetized activated Juniperus procera leaves (Fe3O4@AJPL) were successfully prepared via chemical activation of JPL and in situ coprecipitation with Fe3O4. A Fe3O4@AJPL nanocomposite was successfully applied for the elimination of malachite green (MG) dye from aqueous media. The prepared Fe3O4@AJPL adsorbent was characterized by SEM, EDX, TEM, XRD, FTIR, TGA, and BET surface area analyses. The BET surface area and pore size of the Fe3O4@AJPL nanocomposite were found to be 38.44 m2/g and 10.6 nm, respectively. The XRD and FTIR results indicated the formation of a Fe3O4@AJPL nanocomposite. Different parameters, such as pH of the solution (3–8), adsorbent dosage (10–100 mg), temperature (25–45°C), contact time (5-240 min), and initial MG concentrations (20–350 mg/L), for the elimination of the MG dye using Fe3O4@AJPL were optimized and found to be 7, 50 mg, 45°C, 120 min, and 150 mg/L, respectively. The nonlinear isotherm and kinetic studies exhibited a better fitting to second-order kinetic and Langmuir isotherm models, with a maximum monolayer adsorption capacity of 318.3 mg/g at 45°C, which was highly superior to the previously reported magnetic nanocomposite adsorbents. EDX analyses confirmed the presence of nitrogen on the Fe3O4@AJPL surface after MG adsorption. The calculated thermodynamic factors indicated endothermic and spontaneous processes. The desorption of MG dye from Fe3O4@AJPL was performed using a solution of 90% ethanol. Finally, it could be concluded that the designed Fe3O4@AJPL magnetic nanocomposite will be a cost-effective and promising adsorbent for the elimination of MG from aqueous media.

scholarly journals Diels - Alder Reactions of 3-Furylamines in Organic and Aqueous Solvents

2006 ◽  
Vol 59 (5) ◽  
pp. 336 ◽  
Author(s):  
Anthony R. Lingham ◽  
Helmut M. Hügel ◽  
Trevor J. Rook
Keyword(s):  
Methyl Acrylate ◽  
Aqueous Media ◽  
Diels Alder ◽  
High Yields

Various 5-methyl-3-aminofurans have been shown to undergo facile Diels–Alder reactions with methyl acrylate in aqueous media. Reactions proceeded with exclusive regiochemistry, and enamine cycloadducts were readily hydrolyzed to afford 7-oxabicyclo[2.2.1]heptanones in high yields.

Magnetic nanocomposite of filamentous algae activated carbon for efficient elimination of cephalexin from aqueous media

2020 ◽  
Vol 37 (1) ◽  
pp. 80-92 ◽  
Author(s):  
Shirin Afshin ◽  
Yousef Rashtbari ◽  
Bahman Ramavandi ◽  
Mehdi Fazlzadeh ◽  
Mehdi Vosoughi ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Aqueous Media ◽  
Magnetic Nanocomposite ◽  
Filamentous Algae ◽  
Efficient Elimination

scholarly journals Chelating magnetic nanocomposite for the rapid removal of Pb(ii) ions from aqueous solutions: characterization, kinetic, isotherm and thermodynamic studies

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 433-448 ◽  
Author(s):  
Atefeh Moradi ◽  
Peyman Najafi Moghadam ◽  
Reza Hasanzadeh ◽  
Mika Sillanpää
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Aqueous Media ◽  
Magnetic Nanocomposite ◽  
High Adsorption ◽  
Thermodynamic Studies ◽  
Rapid Removal ◽  
High Adsorption Capacity

Fe3O4@GMA–AAm nanocomposite as a novel adsorbent with high adsorption capacity for rapid removal of Pb2+ from aqueous media was synthesized.

Magnetic Nanocomposite of Cross-Linked Melamine Groups Decorated with Large Amounts of Gold NPs: Reduction of Nitro Compounds and Suzuki-Miyaura Coupling Reactions in Aqueous Media

2018 ◽  
Vol 3 (10) ◽  
pp. 2716-2722 ◽  
Author(s):  
Porf. Ali Pourjavadi ◽  
Nahid Keshavarzi ◽  
Firouz Matloubi Moghaddam ◽  
Seyed Hassan Hosseini
Keyword(s):  
Aqueous Media ◽  
Nitro Compounds ◽  
Magnetic Nanocomposite ◽  
Coupling Reactions ◽  
Gold Nps

Low Cost Corn Cobs-Based Magnetic Nanocomposite for Massive Adsorption of Cu(II) Ions from Aqueous Media

2021 ◽  
pp. 1-18
Author(s):  
Ahmed A. Younes ◽  
Yasser A. M. Abdulhady ◽  
Norhan S. Shahat ◽  
Farida M. S. El-Dars
Keyword(s):  
Low Cost ◽  
Aqueous Media ◽  
Magnetic Nanocomposite ◽  
Corn Cobs

Polymerization of methyl acrylate in aqueous media

1966 ◽  
Vol 4 (5) ◽  
pp. 985-995 ◽  
Author(s):  
Carolyn E. M. Morris ◽  
A. E. Alexander ◽  
A. G. Parts
Keyword(s):  
Methyl Acrylate ◽  
Aqueous Media

Highly efficient and selective photocatalytic CO2 to CO conversion in aqueous solution

2020 ◽  
Vol 56 (27) ◽  
pp. 3851-3854 ◽  
Author(s):  
Xiaomin Chai ◽  
Hai-Hua Huang ◽  
Huiping Liu ◽  
Zhuofeng Ke ◽  
Wen-Wen Yong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Performance ◽  
Aqueous Media ◽  
Highly Efficient ◽  
Co Conversion

A Co-based complex displayed the highest photocatalytic performance for CO2 to CO conversion in aqueous media.

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