Facile Photopolymerization of High-Molecular-Weight Polyaniline Composites Induced by g-C<sub>3</sub>N<sub>4</sub> at Room Temperature for Trace Fe Ion Sensors

Ren, Hai-Tao; Li, Da-Shuai; Cai, Chao-Chen; Li, Ting-Ting; Lou, Ching-Wen; Lin, Jia-Horng; Han, Xu

doi:10.1021/acs.macromol.3c01970

Cited by 9 publications

(3 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The preparation of C-TM-CN was confirmed to be complete based on XPS analyses. The presence of peaks at 810 cm −1 can be attributed to the 3-s-Triazine unit characteristic peak of g-C3N4 [18,43]. The peaks in the range 1135-1629 cm −1 were ascribed to the stretching vibrations of heterocycles (C-N/C=N).…”

Section: Xps Analysismentioning

confidence: 96%

“…C-TM-CN nanofiber composite membranes exhibit a broader absorption band at 1200-1800 cm −1 , which corresponds to the C(sp 3 )-N and C(sp 2 )=N in the CN heterocycle of g-C 3 N 4 , but the broader absorption band shifts to the left compared to the CN heterocycle of g-C 3 N 4 . The presence of peaks at 810 cm −1 can be attributed to the 3-s-Triazine unit characteristic peak of g-C3N4[18,43]. The peaks in the range 1135-1629 cm −1 were ascribed to the stretching vibrations of heterocycles (C-N/C=N).…”

mentioning

confidence: 96%

See 1 more Smart Citation

Carbon Nanofiber Membranes Loaded with MXene@g-C3N4: Preparation and Photocatalytic Property

Lou,

Xie,

Yang

et al. 2024

Nanomaterials

Self Cite

View full text Add to dashboard Cite

In this study, a Ti3C2 MXene@g-C3N4 composite powder (TM-CN) was prepared by the ultrasonic self-assembly method and then loaded onto a carbon nanofiber membrane by the self-assembly properties of MXene for the treatment of organic pollutants in wastewater. The characterization of the TM-CN and the C-TM-CN was conducted via X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectrometer (FTIR) to ascertain the successful modification. The organic dye degradation experiments demonstrated that introducing an appropriate amount of Ti3C2 MXene resulted in the complete degradation of RhB within 60 min, three times the photocatalytic efficiency of a pure g-C3N4. The C-TM-CN exhibited the stable and outstanding photocatalytic degradation of the RhB solution over a wide range of pH values, indicating the characteristics of the photodegradation of organic pollutants in a wide range of aqueous environments. Furthermore, the results of the cyclic degradation experiments demonstrated that the C-TM-CN composite film maintained a degradation efficiency of over 85% after five cycles, thereby confirming a notable improvement in its cyclic stability. Consequently, the C-TM-CN composite film exhibits excellent photocatalytic performance and is readily recyclable, making it an auspicious eco-friendly material in water environment remediation.

show abstract

Section: Xps Analysismentioning

confidence: 96%

mentioning

confidence: 96%

Carbon Nanofiber Membranes Loaded with MXene@g-C3N4: Preparation and Photocatalytic Property

Lou,

Xie,

Yang

et al. 2024

Nanomaterials

Self Cite

View full text Add to dashboard Cite

show abstract

“…The production of H 2 O 2 can occur through either an indirect two-step one-electron reduction process (O 2 → O 2 •− → H 2 O 2 ) or a direct one-step two-electron reduction pathway (O 2 → H 2 O 2 ). , Recent studies have shown that a photocatalytic system can efficiently produce H 2 O 2 through the two-electron reduction of O 2 . For instance, O 2 is reduced by electrons photogenerated by g-C 3 N 4 or graphene oxide (GO), formation of the intermediate 1,4-endoperoxide portion in the benzene-like ring structure of g-C 3 N 4 or GO, followed by release to form H 2 O 2 , which is consistent with two-electron reduction of O 2 and results in high H 2 O 2 selectivity. − However, Shiraishi et al concluded that O 2 underwent one-electron reduction on TiO 2 , resulting in very low selectivity for H 2 O 2 generation . Therefore, the reaction pathways may be more complex than anticipated.…”

Section: Introductionmentioning

confidence: 96%

Photocatalytic Generation of H₂O₂ Via a Hydrogen-Abstraction Pathway by Bi_2.15WO₆ under Visible Light

Ren,

Cai,

Zhu

et al. 2024

Langmuir

Self Cite

View full text Add to dashboard Cite

Photocatalytic technology is a popular research area for converting solar energy into environmentally friendly chemicals and is considered the greenest approach for producing H 2 O 2 . However, the corresponding reactive oxygen species (ROS) and pathway involved in the photocatalytic generation of H 2 O 2 by the Bi 2.15 WO 6 -glucose system are still not clear. Quenching experiments have established that neither • OH nor h + contribute to the formation of H 2 O 2 , and show that the formed surface superoxo (�Bi−OO • ) and peroxo (�Bi−OOH) species are the predominant ROS in H 2 O 2 generation. In addition, various characterizations indicate the enhanced electron-transfer on the surface of Bi 2.15 WO 6 with increasing contents of glucose via the ligand-to-metal charge transfer pathway, confirming H-transfer from glucose to �Bi−OO • or �Bi−OOH. The increased production of H 2 O 2 with decreasing bond dissociation energy (BDE O−H ) values of various phenolic compounds again supports the Htransfer mechanism from phenolic compounds to �Bi−OO • and then to �Bi−OOH. DFT calculations further reveal that on the Bi 2.15 WO 6 surface, oxygen is sequentially reduced to �Bi−OO • and �Bi−OOH, while H-transfer from H 2 O or glucose to �Bi− OO • and �Bi−OOH, resulting in the production of H 2 O 2 . The lower energy barrier of H-transfer from adsorbed glucose (0.636 eV) than that from H 2 O (1.157 eV) indicates that H-transfer is more favorable from adsorbed glucose. This work gives new insight into the photocatalytic generation of H 2 O 2 by Bi 2.15 WO 6 in the presence of glucose/phenolic compounds via the H-abstraction pathway.

show abstract

Photopolymerized PAM/CTS/SA/Ca2+/TiO2 hydrogel for sustainable passive cooling

Zhu,

He,

Cai

et al. 2024

Applied Thermal Engineering

View full text Add to dashboard Cite

Facile Photopolymerization of High-Molecular-Weight Polyaniline Composites Induced by g-C₃N₄ at Room Temperature for Trace Fe Ion Sensors

Cited by 9 publications

References 71 publications

Carbon Nanofiber Membranes Loaded with MXene@g-C3N4: Preparation and Photocatalytic Property

Carbon Nanofiber Membranes Loaded with MXene@g-C3N4: Preparation and Photocatalytic Property

Photocatalytic Generation of H₂O₂ Via a Hydrogen-Abstraction Pathway by Bi_2.15WO₆ under Visible Light

Photopolymerized PAM/CTS/SA/Ca2+/TiO2 hydrogel for sustainable passive cooling

Contact Info

Product

Resources

About

Facile Photopolymerization of High-Molecular-Weight Polyaniline Composites Induced by g-C3N4 at Room Temperature for Trace Fe Ion Sensors

Cited by 9 publications

References 71 publications

Carbon Nanofiber Membranes Loaded with MXene@g-C3N4: Preparation and Photocatalytic Property

Carbon Nanofiber Membranes Loaded with MXene@g-C3N4: Preparation and Photocatalytic Property

Photocatalytic Generation of H2O2 Via a Hydrogen-Abstraction Pathway by Bi2.15WO6 under Visible Light

Photopolymerized PAM/CTS/SA/Ca2+/TiO2 hydrogel for sustainable passive cooling

Contact Info

Product

Resources

About

Facile Photopolymerization of High-Molecular-Weight Polyaniline Composites Induced by g-C₃N₄ at Room Temperature for Trace Fe Ion Sensors

Photocatalytic Generation of H₂O₂ Via a Hydrogen-Abstraction Pathway by Bi_2.15WO₆ under Visible Light