Synthesis of CuTi-LDH supported on g-C3N4 for electrochemical and photoelectrochemical oxygen evolution reactions

Guru, Sruthi; Kumar, Sandeep; Bellamkonda, Sankeerthana; Rao, G. Ranga

doi:10.1016/j.ijhydene.2020.08.102

Cited by 45 publications

(26 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…have been developed to convert the LDHs into 2D sheets through delamination. − These 2D sheets, due to high surface area, rich active sites, and excellent visible absorption, can induce various photochemical reactions. The face-to-face interaction of LDHs with carbon nitride to make the vdW heterojunction has been found to boost photocatalytic performance. − The potential of such a combination has already been traversed by Song et al Within a short span, a few more reports have emerged on the 2D/2D heterojunction/close contact of carbon nitrides and LDHs. − …”

Section: Carbon Nitride–layered Double Hydroxides (Ldhs) 2d/2d Vdw St...mentioning

confidence: 99%

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

et al. 2021

View full text Add to dashboard Cite

The surging demand for energy and staggering pollutants in the environment have geared the scientific community to explore sustainable pathways that are economically feasible and environmentally compelling. In this context, harnessing solar energy using semiconductor materials to generate charge pairs to drive photoredox reactions has been envisioned as a futuristic approach. Numerous inorganic crystals with promising nanoregime properties investigated in the past decade have yet to demonstrate practical application due to limited photon absorption and sluggish charge separation kinetics. Two-dimensional semiconductors with tunable optical and electronic properties and quasi-resistance-free lateral charge transfer mechanisms have shown great promise in photocatalysis. Polymeric graphitic carbon nitride (g-C3N4) is among the most promising candidates due to fine-tuned band edges and the feasibility of optimizing the optical properties via materials genomics. Constructing a two-dimensional (2D)/2D van der Waals (vdW) heterojunction by allies of 2D carbon nitride sheets and other 2D semiconductors has demonstrated enhanced charge separation with improved visible photon absorption, and the performance is not restricted by the lattice matching of constituting materials. With the advent of new 2D semiconductors over the recent past, the 2D/2D heterojunction assemblies are gaining momentum to design high performance photocatalysts for numerous applications. This review aims to highlight recent advancements and key understanding in carbon nitride based 2D/2D heterojunctions and their applications in photocatalysis, including small molecules activation, conversion, and degradations. We conclude with a forward-looking perspective discussing the key challenges and opportunity areas for future research.

show abstract

Section: Carbon Nitride–layered Double Hydroxides (Ldhs) 2d/2d Vdw St...mentioning

confidence: 99%

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The abundancy, economic, and excellent properties of graphitic carbon nitride (g-C 3 N 4 ) have increased their reputability as a single and hybrid composite for photocatalytic water splitting . It has been noted that g-C 3 N 4 possesses good electrochemical stability, appropriate bandgap, and shows positive results for the HER and OER. , Compared to other conventional photocatalysts, g-C 3 N 4 has a bandgap of 2.7 eV, better solar absorption, and a mesoporous surface area below 10 m 2 /g which are excellent indicators for hydrogen production through photocatalysis. The mesoporosity of g-C 3 N 4 undeniably is one of the significant properties that positively affect its photocatalytic efficiency.…”

Section: Ti3c2 Mxene As a Photoactivity Enhancermentioning

confidence: 99%

Role of Ti₃C₂ MXene as Prominent Schottky Barriers in Driving Hydrogen Production through Photoinduced Water Splitting: A Comprehensive Review

Sherryna

Tahir

2021

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Photocatalytic hydrogen generation through the utilization of the Ti 3 C 2 MXene photocatalyst offers the best alternatives to provide clean, sustainable, and renewable energy sources. The unique structure, good metallic conductivity, and excellent photochemical properties exhibited by Ti 3 C 2 MXene nominate it as a highly favored cocatalyst to derive hydrogen generation compared to other noncommercial semiconductors. This review highlights the role of Ti 3 C 2 MXene and its potential in promoting photocatalytic hydrogen production through the formation of Schottky interfaces. First, the structural overview and the basic principles of Ti 3 C 2 MXene in photocatalysis are summarized. Second, a brief introduction to the characteristics of Ti 3 C 2 MXene is made to give a firm understanding of its optoelectronic and electrical properties and its stability under thermal and oxidative treatment. Besides, the role of Ti 3 C 2 MXene in promoting photocatalytic hydrogen production is consistently discussed with a focus on the photoactivity enhancement of Ti 3 C 2 MXene-based Schottky junctions. Furthermore, insights into the different morphological effects of Ti 3 C 2 MXene on photocatalytic reactions are summarized. Finally, the future prospects and challenges are discussed to give insights into the future development of Ti 3 C 2 MXene. Hence, this review provides a significant overview for further exploring the role of Ti 3 C 2 MXene as an effective cocatalyst for photocatalytic H 2 production and other energy applications.

show abstract

“…Later Guru et al. revealed a type‐II interface in CuTi−LDH/g‐C 3 N 4 heterostructure for high charge separation efficiency and low recombination rate owing to the shorter interfacial contact area [183] . Further, they identified porosity in the CuTi−LDH/g‐C 3 N 4 hetero structure with elevated specific surface area (146 m 2 /g), and appropriate band gap (∼2.46 eV), facilitate to promote the electrocatalytic (EC) and PEC reaction.…”

Section: Magnifying Mechanism Of Charge Separation Related To Stability Of Ldh@graphene and Analogous Heterostructure Towards Pc/pec Watementioning

confidence: 99%

Recent Progress in LDH@Graphene and Analogous Heterostructures for Highly Active and Stable Photocatalytic and Photoelectrochemical Water Splitting

Nayak

2021

Chemistry An Asian Journal

View full text Add to dashboard Cite

Photocatalytic (PC) and photoelectrochemical (PEC) water splitting is a plethora of green technological process, which transforms copiously available photon energy into valuable chemical energy. With the augmentation of modern civilization, developmental process of novel semiconductor photocatalysts proceeded at a sweltering rate, but the overall energy conversion efficiency of semiconductor photocatalysts in PC/PEC is moderately poor owing to the instability ariseing from the photocorrosion and messy charge configuration. Particularly, layered double hydroxides (LDHs) as reassuring multifunctional photocatalysts, turned out to be intensively investigated owing to the lamellar structure and exceptional physico‐chemical properties. However, major drawbacks of LDHs material are its low conductivity, sluggish mass transfer and structural instability in acidic media, which hinder their applicability and stability. To surmount these obstacles, the formation of LDH@graphene and analogus heterostructures could proficiently amalgamate multi‐functionalities, compensate distinct shortcomings, and endow novel properties, which ensure effective charge separation to result in stability and superior catalytic activities. Herein, we aim to summarize the currently updated synthetic strategies used to design heterostructures of 2D LDHs with 2D/3D graphene and graphene analogus material as graphitic carbon nitride (g‐C3N4), and MoS2 as mediator, or interlayer support, or co‐catalyst or vice versa for superior PC/PEC water splitting activities along with long‐term stabilities. Furthermore, latest characterization technique measuring the stability along with variant interface mode for imparting charge separation in LDH@graphene and graphene analogus heterostructure has been identified in this field of research with understanding the intrinsic structural features and activities.

show abstract

Synthesis of CuTi-LDH supported on g-C3N4 for electrochemical and photoelectrochemical oxygen evolution reactions

Cited by 45 publications

References 79 publications

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Role of Ti₃C₂ MXene as Prominent Schottky Barriers in Driving Hydrogen Production through Photoinduced Water Splitting: A Comprehensive Review

Recent Progress in LDH@Graphene and Analogous Heterostructures for Highly Active and Stable Photocatalytic and Photoelectrochemical Water Splitting

Contact Info

Product

Resources

About

Synthesis of CuTi-LDH supported on g-C3N4 for electrochemical and photoelectrochemical oxygen evolution reactions

Cited by 45 publications

References 79 publications

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

Role of Ti3C2 MXene as Prominent Schottky Barriers in Driving Hydrogen Production through Photoinduced Water Splitting: A Comprehensive Review

Recent Progress in LDH@Graphene and Analogous Heterostructures for Highly Active and Stable Photocatalytic and Photoelectrochemical Water Splitting

Contact Info

Product

Resources

About

Role of Ti₃C₂ MXene as Prominent Schottky Barriers in Driving Hydrogen Production through Photoinduced Water Splitting: A Comprehensive Review