Skip to main content
Log in

Nanomaterials for photo-electrochemical water splitting: a review

  • Research Advancements & Challenges for Sustainable Hydrogen Energy
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

Over the last few decades, the global rise in energy demand has prompted researchers to investigate the energy requirements from alternative green fuels apart from the conventional fossil fuels, due to the surge in CO2 emission levels. In this context, the global demand for hydrogen is anticipated to extend by 4–5% in the next 5 years. Different production technologies like gasification of coal, partial oxidation of hydrocarbons, and reforming of natural gas are used to obtain high yields of hydrogen. In present time, 96% of hydrogen is produced by the conventional methods, and the remaining 4% is produced by the electrolysis of water. Photo-electrochemical (PEC) water splitting is a promising and progressive solar-to-hydrogen pathway with high conversion efficiency at low operating temperatures with substrate electrodes such as fluorine-doped tin oxide (FTO), incorporated with photocatalytic nanomaterials. Several semiconducting nanomaterials such as carbon nanotubes, TiO2, ZnO, graphene, alpha-Fe2O3, WO3, metal nitrides, metal phosphides, cadmium-based quantum dots, and rods have been reported for PEC water splitting. The design of photocatalytic electrodes plays a crucial role for efficient PEC water splitting process. By modifying the composition and morphology of photocatalytic nanomaterials, the overall solar-to-hydrogen (STH) energy conversion efficiency can be improved by optimizing their opto-electronic properties. The present article highlights the recent advancements in cleaner and effective photocatalysts for producing high yields of hydrogen via PEC water splitting.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

Download references

Acknowledgements

The authors would like to sincerely thank the Science and Engineering Research Board (SERB), a statutory body of the Department of Science and Technology, Government of India, for the funded research project entitled “Colloidal Quantum dots as Enhancers in Photo catalytic Hydrogen Generation,” file no. CRG/2021/000011-G.

Funding

The present review work is not having any source of financial support. The authors declare that no funds, grants, or other support was received during the preparation of this manuscript.

Author information

Authors and Affiliations

Authors

Contributions

VD, SS, and VS are the Ph.D. candidates who performed the literature search and data analysis for this review paper. The review was carried out under the supervision of SG and ADS (Department of Chemical Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India 144008). All authors have fruitfully contributed to the final manuscript.

Corresponding author

Correspondence to Amit D. Saran.

Ethics declarations

Consent to participate

All the authors provide consent for their work and their name to participate.

Competing interests

The authors declare no competing interests.

Additional information

Responsible Editor: George Z. Kyzas

The submitted review work is original and has not been published in any form or language.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dhiman, V., Singh, S., Srivastava, V. et al. Nanomaterials for photo-electrochemical water splitting: a review. Environ Sci Pollut Res (2023). https://doi.org/10.1007/s11356-023-30629-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11356-023-30629-y

Keywords

Navigation