Fabrication of monodisperse polypyrrole/SBA-15 composite for the selective removal of Cr(Ⅵ) from aqueous solutions

2021 ◽  
Author(s):  
Liang Wang ◽  
Peng Gao ◽  
Mengxin Liu ◽  
Ziqing Huang ◽  
Shixia Lan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Adsorption Process ◽  
In Situ Polymerization ◽  
Selective Removal ◽  
Factors Affecting

Monodisperse polypyrrole/SBA-15 composite (PPy/SBA-15) was fabricated by in-situ polymerization and used for Cr(Ⅵ) adsorption from aqueous solution. PPy/SBA-15 was characterized by numerous approaches. Factors affecting the Cr(Ⅵ) adsorption process included...

In Situ Polymerization of Aqueous Solutions of NIPAAm Initiated by Atmospheric Plasma Treatment

2013 ◽  
Vol 10 (6) ◽  
pp. 506-516 ◽  
Author(s):  
Ricardo Molina ◽  
Cristina Ligero ◽  
Petar Jovančić ◽  
Enric Bertran
Keyword(s):  
Aqueous Solutions ◽  
Plasma Treatment ◽  
In Situ Polymerization ◽  
Atmospheric Plasma

Reinforced conducting hydrogels prepared from the in situ polymerization of aniline in an aqueous solution of sodium alginate

2014 ◽  
Vol 2 (39) ◽  
pp. 16516-16522 ◽  
Author(s):  
Huabo Huang ◽  
Xiaoping Zeng ◽  
Wan Li ◽  
Hong Wang ◽  
Qin Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonding ◽  
Sodium Alginate ◽  
In Situ Polymerization ◽  
Intramolecular Hydrogen Bonding ◽  
Intramolecular Hydrogen

Reinforcement of PANI–SA conducting hydrogels is attributed to the interaction of PANI–SA chains and the inter/intramolecular hydrogen bonding within the SA chains.

In situ polymerization induced supramolecular hydrogels of chitosan and poly(acrylic acid-acrylamide) with high toughness

2017 ◽  
Vol 1 (2) ◽  
pp. 310-318 ◽  
Author(s):  
Jin Li ◽  
Zhilong Su ◽  
Xiaodong Ma ◽  
Hongjie Xu ◽  
Zixing Shi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Acrylic Acid ◽  
Electrostatic Interaction ◽  
In Situ Polymerization ◽  
Supramolecular Hydrogel ◽  
High Toughness ◽  
Poly Acrylic Acid

A novel type of supramolecular hydrogel was developed byin situpolymerization of acrylic acid (AA) and acrylamide (AM) monomers in the aqueous solution of chitosan (CS) based on the dynamic electrostatic interaction of ions.

Synthesis of sodium polyacrylate–bentonite using in situ polymerization for Pb2+ removal from aqueous solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 48145-48154 ◽  
Author(s):  
Youjun He ◽  
Meishan Pei ◽  
Ni Xue ◽  
Luyan Wang ◽  
Wenjuan Guo
Keyword(s):  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
In Situ Polymerization ◽  
Sodium Polyacrylate ◽  
First Time

A sodium polyacrylate–bentonite material (PAANa–Bent), as an adsorbent for heavy metal ions, is synthesized for the first time using in situ polymerization.

scholarly journals Rapid Room-Temperature Preparation of Hierarchically Porous Metal–Organic Frameworks for Efficient Uranium Removal from Aqueous Solutions

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1539 ◽  
Author(s):  
Chongxiong Duan ◽  
Yi Zhang ◽  
Jiexin Li ◽  
Le Kang ◽  
Yawei Xie ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Adsorption Process ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Hierarchically Porous ◽  
Environment And Health ◽  
Effective Removal ◽  
Metal Organic ◽  
Enhanced Adsorption

The effective removal of uranium from an aqueous solution is a highly valuable process for the environment and health. In this study, we developed a facile and rapid method to synthesize hierarchically porous Cu-BTC (RT-Cu-BTC) using a cooperative template strategy. The as-synthesized RT-Cu-BTC exhibited hierarchically porous structure and excellent thermostability, as revealed by X-ray powder diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. Compared with conventional metal–organic frameworks (MOFs) and zeolites, the obtained RT-Cu-BTC exhibited enhanced adsorption capacity (839.7 mg·g−1) and high removal efficiency (99.8%) in the capture of uranium (VI) from aqueous solutions. Furthermore, the conditions such as adsorbent dose, contact time, and temperature in adsorption of uranium (VI) by RT-Cu-BTC were investigated in detail. The thermodynamics data demonstrated the spontaneous and endothermic nature of the uranium (VI) adsorption process. The Langmuir isotherm and pseudo-second-order models could better reflect the adsorption process of uranium (VI) onto RT-Cu-BTC. In addition, the as-synthesized RT-Cu-BTC showed excellent stability in removing uranium (VI) from an aqueous solution. This work provides a facile and rapid approach for fabricating hierarchically porous MOFs to realize a highly efficient removal of uranium (VI) from aqueous systems.

Ibuprofen removal from aqueous solution by in situ electrochemically generated ferrate(VI): proof-of-principle

2015 ◽  
Vol 73 (2) ◽  
pp. 389-395 ◽  
Author(s):  
Ljiljana Nikolić-Bujanović ◽  
Milan Čekerevac ◽  
Milena Tomić ◽  
Mladen Zdravković
Keyword(s):  
Aqueous Solution ◽  
Organic Carbon ◽  
Aqueous Solutions ◽  
Phosphate Buffer ◽  
Phosphate Buffer Solution ◽  
Oxygen Demand ◽  
Buffer Solution ◽  
Effective Removal ◽  
Proof Of Principle

The possibility of removing pharmaceuticals from aqueous solutions was examined using ibuprofen (Ibu) oxidation as an example, using in situ electrochemically synthesized ferrate(VI), a strong oxidant and coagulant, with forming of non-harmful byproducts. A solution of ibuprofen of 206 mg/L in 0.1 M phosphate buffer solution was treated with different amounts of fresh, electrochemically synthesized ferrate(VI). The changes of ibuprofen concentration in samples were determined using a UV-Vis spectrophotometer. The extent of mineralization was estimated using the changes in chemical oxygen demand (COD) values and total organic carbon (TOC) values of test samples. The largest reduction of the concentration of Ibu (41.75%) was obtained by adding 69.2 mg/L ferrate(VI) as Fe (Ibu: Fe = 1: 0.34). An effective removal of ibuprofen from aqueous solutions was recorded up to 68% and it can be done by using ferrate(VI) in the ratio Ibu: Fe = 1:3 as Fe. The possibility of ibuprofen removal by ferrate(VI) was confirmed by COD and TOC results, which demonstrated reduction up to 65% and 63.6%, respectively.

Fabrication of poly(methyl methacrylate)/silica KIT-6 nanocomposites via in situ polymerization approach and their application for removal of Cu2+ from aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11419-11429 ◽  
Author(s):  
Mohammad Dinari ◽  
Gholamhossein Mohammadnezhad ◽  
Roozbeh Soltani
Keyword(s):  
Aqueous Solution ◽  
Mesoporous Silica ◽  
Methyl Methacrylate ◽  
In Situ Polymerization ◽  
Poly Methyl Methacrylate ◽  
Silica Nanocomposites

Novel mesoporous silica nanocomposites for adsorption of Cu(ii) from aqueous solution were prepared by in situ polymerization of MMA and modified KIT-6 as filler.

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