Application of Poly(<scp>A</scp>crylic Acid)‐<scp>M</scp>ultiwalled Carbon Nanotube Composite for Enrichment of Rrace Hg(II)

Cheng, Huangxin; Yu, Jitao; Zeng, Ke; Hou, Guangshun

doi:10.1002/ppap.201300014

Cited by 8 publications

(4 citation statements)

References 30 publications

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“…Among several plasma‐deposited polymers investigated over the last two decades, thin films containing carboxylic acid groups (COOH) have received considerable attention with the aim, for instance, to improve the adhesion of surfaces to polymers or inorganic materials, to enhance cell adhesion and growth, to increase the adsorption of basic species and metals . Deposition processes are mostly performed using acrylic acid (AA) as thin film precursor.…”

Section: Introductionmentioning

confidence: 99%

“…[9] Among several plasma-deposited polymers investigated over the last two decades, thin films containing carboxylic acid groups (COOH) have received considerable attention with the aim, for instance, to improve the adhesion of surfaces to polymers or inorganic materials, [10,11] to enhance cell adhesion and growth, [12] to increase the adsorption of basic species [13] and metals. [14] Deposition processes are mostly performed using acrylic acid (AA) as thin film precursor. Different studies demonstrated that, using both low [12,[15][16][17][18][19][20][21] and atmospheric [22][23][24][25][26][27][28] pressure plasmas, it is possible to tune the amount of COOH groups in the coatings by varying the plasma operational parameters.…”

Section: Introductionmentioning

confidence: 99%

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Deposition of Water-Stable Coatings Containing Carboxylic Acid Groups by Atmospheric Pressure Cold Plasma Jet

Bosso

Fanelli

Fracassi

2015

Plasma Process. Polym.

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Thin films containing carboxylic acid groups are deposited from mixtures of helium, acrylic acid, and ethylene using an atmospheric pressure cold plasma jet in dielectric barrier discharge (DBD) configuration. The influence of the feed gas composition on the properties of the deposits is investigated. As assessed by X-ray photoelectron spectroscopy (XPS), the oxygen atomic concentration of the coatings as well as the percentage of the XPS C1s component ascribed to carboxylic groups (i.e., COOH and COOR moieties) increase with the acrylic acid concentration in the feed gas. On the other hand, ethylene addition enhances the deposition rate, reduces the carboxylic groups content of the coatings, and significantly improves their chemical and morphological stability upon immersion in water for 72 h. The surface concentration of COOH groups before and after immersion in water is determined by chemical derivatization in conjunction with XPS

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Deposition of Water-Stable Coatings Containing Carboxylic Acid Groups by Atmospheric Pressure Cold Plasma Jet

Bosso

Fanelli

Fracassi

2015

Plasma Process. Polym.

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“…The results are shown in Figure 10 . At 2943 cm −1 and 2875 cm −1 , they are the characteristic absorption peaks of methyl and methylene, which are mainly the characteristic chemical bonds of waterborne acrylic acid (the main component of the primer) [ 35 ]. The absorption peak at 1547 cm −1 belongs to -NH- stretching vibration peak, which belongs to the characteristic peak of melamine resin [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

Preparation of Melamine/Rice Husk Powder Coated Shellac Microcapsules and Effect of Different Rice Husk Powder Content in Wall Material on Properties of Wood Waterborne Primer

Yan

et al. 2021

Polymers

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The melamine/rice husk powder-coated shellac microcapsules were prepared by in-situ polymerization with melamine resin mixed with rice husk powder as microcapsule wall material and shellac as microcapsule core material. The effect of the addition amount of microcapsules with different wall material ratios on the performance of wood waterborne primer coating was investigated. The results show that the most important factor affecting the performance of microcapsules is the content of rice husk powder. Through the preparation and analysis of shellac microcapsule primer coating coated with melamine/rice husk powder, when the content of microcapsule powder is 0–6%, it has little effect on the optical properties of wood waterborne primer coating, and the microcapsule with 5.5% rice husk powder has little effect on the color difference of primer coating. The coating hardness increases with the increase of rice husk powder content in wall material. When the rice husk powder content in wall material is more than 5.5%, the coating hardness reaches the best. When the content of microcapsule powder is 3.0–9.0%, the adhesion of the coating is better, and the coating with rice husk powder content of 5.5% in microcapsule wall material has better impact resistance. When the content of rice husk powder was 5.5% and the content of microcapsule powder was 6%, the elongation at break of the primer coating was the highest and the tensile resistance was the best. The composition of wood waterborne primer did not change after adding microcapsule. The water-based primer with microcapsule has better aging resistance. The water-based primer coating with rice husk powder content of 5.5% and the addition amount of 6% had the best comprehensive performance, which lays the technical reference for the toughness and self-repairing of the waterborne wood coatings.

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“…In practice, there are not many cases of high concentration mercury ion contamination. According to the comprehensive sewage discharge standard GB8978-2005 in China, the concentration of mercury ions in the discharged sewage shall not exceed 0.05 mg•L −1 [22]. In this study, a composite material for treating lower concentrations of mercury ions was synthesized in order to further investigate the ability of the material to deal with actual mercury ion wastewater.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Poly(acrylic acid-acrylamide/starch) Composite and Its Adsorption Properties for Mercury (II)

et al. 2021

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The poly (acrylic acid-acrylamide/starch) composite was synthesized by solution polymerization, aiming to adsorb mercury (II) in water. The resulted copolymer was characterized by particle size exclusion chromatography (SEC), Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG), scanning electron microscopy (SEM) and dynamic light scattering particle size analyzer (DLS). It turned out that starch was successfully incorporated with the macromolecular polymer matrix and played a key role for improving the performance of the composites. These characterization results showed that the graft copolymer exhibited narrow molecular weight distribution, rough but uniform morphology, good thermal stability and narrow particle size distribution. The graft copolymer was used to remove Hg(II) ions from aqueous solution. The effects of contact time, pH value, initial mercury (II) concentration and temperature on the adsorption capacity of Hg(II) ions were researched. It was found that after 120 min of interaction, poly (acrylic acid-acrylamide/starch) composite achieved the maximum adsorption capacity of 19.23 mg·g−1 to Hg(II) ions with initial concentration of 15 mg·L−1, pH of 5.5 at 45 °C. Compared with other studies with the same purpose, the composites synthesized in this study present high adsorption properties for Hg(II) ion in dilute solution. The adsorption kinetics of Hg(II) on the poly (acrylic acid-acrylamide/starch) composite fits well with the pseudo second order model.

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Application of Poly(Acrylic Acid)‐Multiwalled Carbon Nanotube Composite for Enrichment of Rrace Hg(II)

Cited by 8 publications

References 30 publications

Deposition of Water-Stable Coatings Containing Carboxylic Acid Groups by Atmospheric Pressure Cold Plasma Jet

Deposition of Water-Stable Coatings Containing Carboxylic Acid Groups by Atmospheric Pressure Cold Plasma Jet

Preparation of Melamine/Rice Husk Powder Coated Shellac Microcapsules and Effect of Different Rice Husk Powder Content in Wall Material on Properties of Wood Waterborne Primer

Preparation of Poly(acrylic acid-acrylamide/starch) Composite and Its Adsorption Properties for Mercury (II)

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