Recent advances in covalent organic framework (COF) nanotextures with band engineering for stimulating solar hydrogen production: A comprehensive review

Animesh Towfiq Partho, Muhammad Tahir, Beenish Tahir

Research output: Contribution to journalReview articlepeer-review

16 Citations (Scopus)

Abstract

Due to the continuous consumption of fossil fuels, natural reserves are depleting and it has been earnest need for developing new sources of energy. Among the several solar energy conversion techniques, photocatalytic hydrogen (H2) generation is regarded as one of the most promising routes. Till date, several metal-based semiconductor materials have been investigated, however, H2 generation is not substantial with the notion of sustainable development. Current research trends show the growing interest in advanced and metal free photocatalyst materials such as covalent organic frameworks (COFs) due to their several benefits such as crystalline porous polymers with pre-designed architectures, large surface area, exceptional stability, and ease of molecular functionalization. By combining COFs with other functional materials, composites may be created that display unique characteristics that exceed those of the separate components. This work provides a comprehensive development on COFs as a photocatalysts and their composites/hybrids for photocatalytic hydrogen generation with a focus on visible-light irradiation. To reduce the dependency on novel metals and overcome the drawbacks of individual material, the creation of composite materials based on covalent-organic frameworks (COFs) are systematically discussed. In addition, advantages in terms of performance, stability, durability of composites/hybrids COFs for photocatalytic hydrogen production in reference to traditional catalysts are investigated. Different composites such as metals loading, morphological development, band engineering, and heterojunctions are systematically discussed. Finally, challenges and opportunities associated with constructing COF-based catalysts as future research prospective for chemistry and materials science are highlighted.

Original languageEnglish
Pages (from-to)34323-34375
Number of pages53
JournalInternational Journal of Hydrogen Energy
Volume47
Issue number81
DOIs
Publication statusPublished - Sept 22 2022

Keywords

  • Covalent organic frameworks (COF)
  • Heterojunctions
  • Hydrogen production
  • MOF composite
  • Photocatalysis
  • Solar energy

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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