One-step preparation of nanobeads-based polypyrrole hydrogel by a reactive-template method and their applications in adsorption and catalysis

Yao, Tongjie; Jia, Wentao; Tong, Xin; Feng, Yi; Qi, Yi; Zhang, Xiao; Wu, Jie

doi:10.1016/j.jcis.2018.05.052

Cited by 38 publications

(13 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peak at 1327 cm −1 is due to the stretching vibration of C-N adsorption [36]. The band at 3288 and 1423 cm −1 are attributed to the = C-N in plane deformation vibrations [37]. All the above are characteristic peaks of the pyrrole ring and suggest the successful synthesis of PPy [38].…”

Section: Resultsmentioning

confidence: 88%

Flexible and Reusable Non-woven Fabric Photodetector Based on Polypyrrole/Crystal Violate Lactone for NIR Light Detection and Writing

et al. 2020

View full text Add to dashboard Cite

Rapid NIR light detection and/or writing has drawn much attention, but their practical applications have been limited by obtaining such NIR photodetectors. To address this problem, we have developed a simple and versatile strategy to prepare a non-woven fabric photodetector. The blue non-woven fabric photodetector has been prepared by coating photo-thermochromic ink (including crystal violet lactone (CVL) as the thermo-sensitive dye, polypyrrole (PPy) nanospheres as the photothermal component and hydroxyethyl cellulose (HEC) as the polymer matrix) on white non-woven fabric. When the blue fabric photodetector is irradiated by NIR (808-nm as model, 0.75 W cm −2 ) laser, the discoloration occurs in 35 s, and higher laser intensity confers more rapid discoloration. This discoloration results from the photothermal effect of PPy which confers the elevation of temperature (> 50 °C) and then converts CVL to its leuco form (colorless). When the laser is turned off, the temperature drops to below the transition temperature (< 43 °C), and then CVL reverts to its initial blue color. Moreover, different figures and images can be easily printed on the fabric photodetector by 808 nm laser, and then they can be erased automatically under ambient conditions, with excellent cycling stability. Therefore, this fabric photodetector may act as a new platform for rapid NIR light detection and writing.

show abstract

Section: Resultsmentioning

confidence: 88%

Flexible and Reusable Non-woven Fabric Photodetector Based on Polypyrrole/Crystal Violate Lactone for NIR Light Detection and Writing

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The C-H and CH 2 peaks of the PVP hydrogel were identified at 2945 and 1650 cm −1 and the C=O peaks were identified at 1700 cm −1 [34]. When the Py/pTS content was 20%, it was confirmed that the intensity of the C-N peaks (at 1415 and 3230 cm −1 ) of PPy/PVP hydrogel increased with the concentration of Py/pTS [14]. It is believed that a large amount of Py is polymerized by the gamma-ray treatment, depending on the increase in the Py/pTS concentration in the PVP hydrogel.…”

Section: Characterization Of Ppy/pvp Hydrogelmentioning

confidence: 79%

“…It was found that 0.15PPy/PVP20 (51.96 ± 6.12 kPa) exhibited better compressive strength than the other samples for use in CP-based hydrogels. Therefore, it was concluded that gamma rays can be used to optimize PPy/PVP hydrogel and that biomedical applications of CP-based hydrogels will be possible.Polymers 2020, 12, 111 2 of 11 due to its excellent biocompatibility and environmental stability [3,4,14]. In addition, PPy has the advantage of the range of its electrical conductivity spanning from 10 to 100 S/cm [15].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Gamma Ray-Induced Polymerization and Cross-Linking for Optimization of PPy/PVP Hydrogel as Biomaterial

et al. 2020

View full text Add to dashboard Cite

Conducting polymer (CP)-based hydrogels exhibit the behaviors of bending or contraction/relaxation due to electrical stimulation. They are similar in some ways to biological organs and have advantages regarding manipulation and miniaturization. Thus, these hydrogels have attracted considerable interest for biomedical applications. In this study, we prepared PPy/PVP hydrogel with different concentrations and content through polymerization and cross-linking induced by gamma-ray irradiation at 25 kGy to optimize the mechanical properties of the resulting PPy/PVP hydrogel. Optimization of the PPy/PVP hydrogel was confirmed by characterization using scanning electron microscopy, gel fraction, swelling ratio, and Fourier transform infrared spectroscopy. In addition, we assessed live-cell viability using live/dead assay and CCK-8 assay, and found good cell viability regardless of the concentration and content of Py/pTS. The conductivity of PPy/PVP hydrogel was at least 13 mS/cm. The mechanical properties of PPy/PVP hydrogel are important factors in their application for biomaterials. It was found that 0.15PPy/PVP20 (51.96 ± 6.12 kPa) exhibited better compressive strength than the other samples for use in CP-based hydrogels. Therefore, it was concluded that gamma rays can be used to optimize PPy/PVP hydrogel and that biomedical applications of CP-based hydrogels will be possible.Polymers 2020, 12, 111 2 of 11 due to its excellent biocompatibility and environmental stability [3,4,14]. In addition, PPy has the advantage of the range of its electrical conductivity spanning from 10 to 100 S/cm [15]. However, PPy has the disadvantage of being brittle and mechanically unstable due to its conjugated chain structure [16]. Thus, existing CP-based biomaterials have limited use in living bodies because they are too hard and brittle [4,8]. Therefore, it is necessary to develop a biomaterial by which CPs could be applied to the soft tissue of a living body. To overcome such weaknesses, CPs-based hydrogels have been actively developed [17][18][19]. The multifaceted challenge in tissue engineering is to find an ideal hydrogel prepolymer that can mimic the biology of human tissues in terms of structure, function, and performance [20]. One of the major issues in electroactive and conductive tissue engineering is the fabrication of multifunctional hydrogels with native-like biological, electrical, and mechanical properties. Therefore, the incorporation of conductive nanomaterials into hydrogels has gained substantial interest as it not only increases the electrical conductivity, but also improves the elasticity and biological activity relative to the pure hydrogel [21,22].Hydrogel is a three-dimensional network structure with a polymer chain bonded through covalent and/or secondary bonds, which enables strong hydrogen bonding with water molecules. Hydrogel can contain a large amount of water, and when in contact with water shows substantial swelling. Even so, it does not easily decompose or dissolve in water. In addition, its mechanical s...

show abstract

“…The methyl orange adsorption capacity of PPY hydrogel beads was 236.9 mg g -1 which was significantly much higher than that of PPY powder. Hydrogels with enhanced adsorption properties are prepared by the reactive-template method 202 . The reactivetemplate method is a substitute for traditional soft-template and hard-template approaches where one-step removal of templates and formation of final nanostructure were furnished simultaneously.…”

Section: Wastewater Treatmentmentioning

confidence: 99%

Polyindole and polypyrrole as a sustainable platform for environmental remediation and sensor applications

et al. 2022

View full text Add to dashboard Cite

show abstract

One-step preparation of nanobeads-based polypyrrole hydrogel by a reactive-template method and their applications in adsorption and catalysis

Cited by 38 publications

References 30 publications

Flexible and Reusable Non-woven Fabric Photodetector Based on Polypyrrole/Crystal Violate Lactone for NIR Light Detection and Writing

Flexible and Reusable Non-woven Fabric Photodetector Based on Polypyrrole/Crystal Violate Lactone for NIR Light Detection and Writing

Gamma Ray-Induced Polymerization and Cross-Linking for Optimization of PPy/PVP Hydrogel as Biomaterial

Polyindole and polypyrrole as a sustainable platform for environmental remediation and sensor applications

Contact Info

Product

Resources

About