Bio-inspired carbon doped graphitic carbon nitride with booming photocatalytic hydrogen evolution

Chen, Hou; Jin, Zhengyuan; Huang, Shaolong; Huang, Xiaoyong; Xu, Binghui; Hu, Liang; Cui, Hongzhi; Ruan, Shuangchen; Zeng, Yu‐Jia

doi:10.1016/j.apcatb.2019.01.040

Cited by 91 publications

(30 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Graphitized BCPs could completely degrade the Cr(VI) and total Cr, owing to the photogenerated electrons, high thermal stability, and large specific surface area. Zhang et al [106] synthesized BC modified graphitic carbon nitride via pyrolysis of kapok fiber. The BCPs presented a narrow band gap and extended light absorption.…”

Section: G-c 3 N 4 -Bcpsmentioning

confidence: 99%

Recent Progress in Biochar-Based Photocatalysts for Wastewater Treatment: Synthesis, Mechanisms, and Applications

Cui

Zhang

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

Biochar (BC) is a carbon-rich material produced from pyrolysis of biomass. In addition to its low toxicity, environmental compatibility, and low cost, BC has the desired advantages of well-developed mesoporous structure and abundant surface functional groups. In recent years, BC-based photocatalysts (BCPs) have played a significant role in many environmental fields. In this paper, we highlight the current progress and several exciting results of BCPs by focusing on their synthesis, characterization, mechanisms, and applications in wastewater treatment. Details on various preparation methods include sol–gel, hydrothermal/solvothermal, ultrasound, calcination, and in situ methods are summarized and discussed. The underlying mechanisms and the applications of BCPs for different semiconductors are reviewed. Furthermore, some future trends and potentials are outlined.

show abstract

Section: G-c 3 N 4 -Bcpsmentioning

confidence: 99%

Recent Progress in Biochar-Based Photocatalysts for Wastewater Treatment: Synthesis, Mechanisms, and Applications

Cui

Zhang

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The third and fourth cycles exhibit similar H 2 evolution efficiency, indicating that the photocatalyst is stable. This phenomenon may be due to the continuous consumption of TEOA as the reaction proceeds, with excess TEOA participating in the reflection and absorption of incident photons [51]. The H 2 production rate is at a maximum during the second round, after which the influence of TEOA on hydrogen production gradually decreases and H 2 production stabilizes.…”

Section: Resultsmentioning

confidence: 99%

Ce-Doped Graphitic Carbon Nitride Derived from Metal Organic Frameworks as a Visible Light-Responsive Photocatalyst for H2 Production

et al. 2019

Self Cite

View full text Add to dashboard Cite

Novel fibrous graphitic carbon nitride (g-C3N4) derivatives prepared from metal organic frameworks (MOFs) were doped with Ce3+ (Ce-C3N4) as photocatalytic materials. Ce-C3N4 was characterized using various techniques, revealing its high specific surface area, excellent photocatalytic activity, and stability for H2 evolution under visible light irradiation. The fluorine modified samples show superior photocatalytic activity under visible light irradiation, which is due to the presence of more active sites and enhanced absorption of solar energy. This work provides a new synthetic route for MOF-derived g-C3N4 that can be doped with different metal ions. The fluorine modified Ce-C3N4 is an efficient photocatalyst with potential for many applications related to energy and the environment.

show abstract

“…The range is related to the partial hydrogenation of nitrogen on the edges of the layers [21]. Other vibration bands shifted significantly following further heating, indicating that CN crystallized and functional groups branches were generated [22].…”

Section: Characterization Of Physical and Chemical Propertiesmentioning

confidence: 98%

“…The yield of H 2 steadily increased in the initial three cycles, following which, it oscillated about a mean point. This phenomenon may be due to TEOA being consumed as the reaction proceeds, because excess TEOA molecules participate in the reflection and absorption of incident photons [22]. The effect of excessive TEOA content on H 2 production gradually decreases, and the H 2 evolution rate is maximized in the third cycle.…”

Section: Characterization Of H 2 Production From Water Splittingmentioning

confidence: 99%

Effective Photocatalytic Hydrogen Evolution Using Covalent Triazine Framework-Derived Carbon Nitride Nanofiber Containing Carbon Vacancies for Visible-Light-Driven

et al. 2021

Self Cite

View full text Add to dashboard Cite

In this study, a novel fibrous carbon nitride (FCN) was prepared from laminated covalent triazine framework (CTF) via pyrolysis, using functionalized 2,5-thiophenedicarboxylic acid and melamine as the precursors. A carbon vacancy was produced by two-step calcination in argon and air atmospheres. These carbon vacancies further exposed the edges and diffusion channels of the FCN nanofibers, which accelerated photogenerated charge transfer and provided more active sites. The FCN was characterized using various techniques and used for H2 evolution under visible-light irradiation. The as-synthesized FCN exhibited excellent stability, and its photocatalytic activity for H2 evolution under visible-light irradiation was 66 times higher than that of bare C3N4 (BCN), attaining a maximum H2 evolution rate of 102.63 μmol in 6 h. The FCN remained stable following visible-light irradiation at the end of 10 cycles. The FCN benefited from the absorption of solar energy and a large number of active sites. These advantages facilitated the efficient separation of photoexcited electron-hole pairs to hinder charge recombination. This work generates new insights into the preparation of highly effective FCN photocatalysts that may be put to various applications, especially in the fields of energy and environment.

show abstract

Bio-inspired carbon doped graphitic carbon nitride with booming photocatalytic hydrogen evolution

Cited by 91 publications

References 51 publications

Recent Progress in Biochar-Based Photocatalysts for Wastewater Treatment: Synthesis, Mechanisms, and Applications

Recent Progress in Biochar-Based Photocatalysts for Wastewater Treatment: Synthesis, Mechanisms, and Applications

Ce-Doped Graphitic Carbon Nitride Derived from Metal Organic Frameworks as a Visible Light-Responsive Photocatalyst for H2 Production

Effective Photocatalytic Hydrogen Evolution Using Covalent Triazine Framework-Derived Carbon Nitride Nanofiber Containing Carbon Vacancies for Visible-Light-Driven

Contact Info

Product

Resources

About