Efficient removal of Acid Red 18 from aqueous solution by in-situ polymerization of polypyrrole-chitosan composites

2019 ◽  
Vol 287 ◽  
pp. 110888 ◽  
Author(s):  
Yong Chen ◽  
Wenchao Long ◽  
Hui Xu
Keyword(s):  
Aqueous Solution ◽  
In Situ Polymerization ◽  
Efficient Removal

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...

scholarly journals Rapid Removal and Efficient Recovery of Tetracycline Antibiotics in Aqueous Solution Using Layered Double Hydroxide Components in an In Situ-Adsorption Process

Crystals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 342 ◽  
Author(s):  
Kwanjira Panplado ◽  
Maliwan Subsadsana ◽  
Supalax Srijaranai ◽  
Sira Sansuk
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxide ◽  
Environmental Water ◽  
Efficient Removal ◽  
In Situ Adsorption ◽  
Aluminum Ions ◽  
Alkaline Conditions ◽  
Efficient Recovery ◽  
Double Hydroxide

This work demonstrates a simple approach for the efficient removal of tetracycline (TC) antibiotic from an aqueous solution. The in situ-adsorption removal method involved instant precipitation formation of mixed metal hydroxides (MMHs), which could immediately act as a sorbent for capturing TC from an aqueous solution, by employing layered double hydroxide (LDH) components including magnesium and aluminum ions in alkaline conditions. By using this approach, 100% removal of TC can be accomplished within 4 min under optimized conditions. The fast removal possibly resulted from an instantaneous adsorption of TC molecules onto the charged surface of MMHs via hydrogen bonding and electrostatically induced attraction. The results revealed that our removal technique was superior to the use of LDH as a sorbent in terms of both removal kinetics and efficiency. Moreover, the recovery of captured TC was tested under the influence of various common anions. It was found that 98% recovery could be simply achieved by using phosphate, possibly due to its highly charged density. Furthermore, this method was successful for efficient removal of TC in real environmental water samples.

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.

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.

Electrical performance and stability of polypyrrole coated PET fibres

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Alessio Varesano ◽  
Anna Ibarzabal Ferrer ◽  
Claudio Tonin
Keyword(s):  
Aqueous Solution ◽  
Thermal Properties ◽  
Room Temperature ◽  
In Situ Polymerization ◽  
Electrical Performance ◽  
Different Temperatures ◽  
Long Time ◽  
Conducting Polypyrrole ◽  
Resistance To Heat

AbstractPET non-wovens were treated with intrinsically electro-conducting polypyrrole (PPy) produced by chemical oxidative in situ polymerization from pyrrole aqueous solution, using Fe3+ or S2O82- as oxidant, and different dopants. The resulting materials have different electrical performances and thermal properties depending on the thickness of the PPy coating, the amount and the type of dopant embedded into the polymer layer, the type of oxidant used and the pH of the polymerization bath. Samples were maintained at different temperatures and humidity with the aim of gathering information about the electrical performance stability in different environmental conditions. Generally, PPy shows conductivity decay when maintained at high temperature, whereas the conductivity slightly decreases when stored for a long time at cold or room temperature. Moreover, the PPy coating enhances the resistance to heat of the PET fibres (i.e. increase in melting temperature).

Studying dispersed and rheological properties of hydrocarbon-containing acid emulsions and their efficiency in removing asphalt-resin-paraffin deposits

2020 ◽  
pp. 128-139
Author(s):  
M. Yu. Shumakher ◽  
V. V. Konovalov ◽  
A. P. Melnikov
Keyword(s):  
Aqueous Solution ◽  
Hydrochloric Acid ◽  
Rheological Properties ◽  
Reaction Rate ◽  
Experimental Studies ◽  
Efficient Removal ◽  
Reservoir Properties ◽  
Hydrocarbon Solvents ◽  
Formation Zone ◽  
Effect Of The Composition

Currently, the treatment of the bottomhole formation zone with acidic compositions is one of the most common methods to intensify the oil inflow. The use of various modified acid compositions increases the efficiency of acid treatments on the bottomhole formation zone. Acid compositions, including those containing hydrocarbon solvents, which contribute to more efficient removal of organic colmatants, affect the reaction rate of the reagent with the rock and processing equipment, change the reservoir properties, etc.The article presents the results of experimental studies, which are aimed at establishing the effect of the composition of hydrocarbon-containing acidic emulsions consisting of an aqueous solution of hydrochloric acid, toluene and Neonol AF 9-10 on their dispersed and rheological properties, as well as their efficiency in removing paraffin deposits.

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