Enhanced visible light photocatalytic H2 production activity of g-C3N4 via carbon fiber

Zhang, Jingtao; Huang, Feng

doi:10.1016/j.apsusc.2015.08.089

Cited by 94 publications

(21 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite its many outstanding properties, the photocatalytic performance of g-C 3 N 4 is severely restricted by a low electronic conductivity, a high rate of photogenerated electron-hole pairs, and a low surface area. Hence, various approaches have been explored and adopted to overcome these problems, such as the fabrication of heterojunctions, sensitization with metal nanoparticles, doping with metallic and non-metallic elements, variation in C and N percentages, delamination of the layered structure, and control of the morphology20212223242526272829.…”

mentioning

confidence: 99%

Room-temperature synthesis of nanoporous 1D microrods of graphitic carbon nitride (g-C3N4) with highly enhanced photocatalytic activity and stability

Pawar

Kang

Park

et al. 2016

Sci Rep

181

View full text Add to dashboard Cite

A one-dimensional (1D) nanostructure having a porous network is an exceptional photocatalytic material to generate hydrogen (H2) and decontaminate wastewater using solar energy. In this report, we synthesized nanoporous 1D microrods of graphitic carbon nitride (g-C3N4) via a facile and template-free chemical approach at room temperature. The use of concentrated acids induced etching and lift-off because of strong oxidation and protonation. Compared with the bulk g-C3N4, the porous 1D microrod structure showed five times higher photocatalytic degradation performance toward methylene blue dye (MB) under visible light irradiation. The photocatalytic H2 evolution of the 1D nanostructure (34 μmol g−1) was almost 26 times higher than that of the bulk g-C3N4 structure (1.26 μmol g−1). Additionally, the photocurrent stability of this nanoporous 1D morphology over 24 h indicated remarkable photocorrosion resistance. The improved photocatalytic activities were attributed to prolonged carrier lifetime because of its quantum confinement effect, effective separation and transport of charge carriers, and increased number of active sites from interconnected nanopores throughout the microrods. The present 1D nanostructure would be highly suited for photocatalytic water purification as well as water splitting devices. Finally, this facile and room temperature strategy to fabricate the nanostructures is very cost-effective.

show abstract

mentioning

confidence: 99%

Room-temperature synthesis of nanoporous 1D microrods of graphitic carbon nitride (g-C3N4) with highly enhanced photocatalytic activity and stability

Pawar

Kang

Park

et al. 2016

Sci Rep

181

View full text Add to dashboard Cite

show abstract

“…Additionally, it is well known that nanocarbon mate-rials (e.g., graphene [291,[315][316][317][318][319], carbon quantum dots [211,236,257,320,321], carbon black [322], carbon fiber [323][324][325] and carbon nanotubes [78,[326][327][328]) have been considered as outstanding promoters for photocatalytic performances. The attraction is attributed to their superior adsorption capacity, unique electronic conductivity, nontoxicity, low cost, high stability, and large surface area.…”

Section: Schottky Junctionsmentioning

confidence: 99%

Nanostructured CdS for efficient photocatalytic H2 evolution: A review

et al. 2020

View full text Add to dashboard Cite

Cadmium sulfide (CdS)-based photocatalysts have attracted extensive attention owing to their strong visible light absorption, suitable band energy levels, and excellent electronic charge transportation properties. This review focuses on the recent progress related to the design, modification, and construction of CdS-based photocatalysts with excellent photocatalytic H 2 evolution performances. First, the basic concepts and mechanisms of photocatalytic H 2 evolution are briefly introduced. Thereafter, the fundamental properties, important advancements, and bottlenecks of CdS in photocatalytic H 2 generation are presented in detail to provide an overview of the potential of this material. Subsequently, various modification strategies adopted for CdS-based photocatalysts to yield solar H 2 are discussed, among which the effective approaches aim at generating more charge carriers, promoting efficient charge separation, boosting interfacial charge transfer, accelerating charge utilization, and suppressing charge-induced self-photocorrosion. The critical factors governing the performance of the photocatalyst and the feasibility of each modification strategy toward shaping future research directions are comprehensively discussed with examples. Finally, the prospects and challenges encountered in developing nanostructured CdS and CdS-based nanocomposites in photocatalytic H 2 evolution are presented.

show abstract

“…This is a further indication that the template influences textural features to some extent. 11 The morphology and microstructure of the samples were examined by (FESEM) and (TEM). Fig.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

“…Recently, graphite-like carbon nitride (g-C 3 N 4 ), a novel and metal-free photocatalyst, has attacked much attention because it has many advantages of non-toxic, inexpensive, high stability, simple preparation, reaction controllable, etc. G-C 3 N 4 with the band gap of 2.70 eV is capable of the visible absorption and exhibits high photocatalytic efficiency in water splitting, decomposition of pollutants, and oxidation of organic matters under visible light irradiation [10][11][12][13]. However, the low specific surface area and high recombination rate of photo-generated electrons and holes of bulk g-C 3 N 4 greatly limit its efficiency in various practical applications.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of nanoporous carbon nitride using calcium carbonate as templates with enhanced visible-light photocatalytic activity

Chen

Yang

Ding

2017

Applied Surface Science

View full text Add to dashboard Cite

Enhanced visible light photocatalytic H2 production activity of g-C3N4 via carbon fiber

Cited by 94 publications

References 66 publications

Room-temperature synthesis of nanoporous 1D microrods of graphitic carbon nitride (g-C3N4) with highly enhanced photocatalytic activity and stability

Room-temperature synthesis of nanoporous 1D microrods of graphitic carbon nitride (g-C3N4) with highly enhanced photocatalytic activity and stability

Nanostructured CdS for efficient photocatalytic H2 evolution: A review

Synthesis of nanoporous carbon nitride using calcium carbonate as templates with enhanced visible-light photocatalytic activity

Contact Info

Product

Resources

About