ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
Concept of Photocatalysis.pdf (477.54 kB)

Revisiting the Concept of Photocatalysis: An Analysis from the Chemical Potentials

preprint
submitted on 11.04.2021, 06:20 and posted on 12.04.2021, 13:17 by Jiazhe Wu, Yubin Chen

A renewed criterion of photochemical free energy is proposed by introducing the concept of absorbed photon chemical potential. The so-called “photocatalytic” and “photosynthetic” processes are both spontaneous reactions in the corresponding physical fields. The misconception towards the classification method according to thermodynamic spontaneity of chemical reactions can be rectified. In this new vision, the photocatalysts in photochemical systems act as the “mediator” between the reactants and photons (a special reactant) to accelerate the kinetics process, which is exactly what the catalysts does.

Funding

National Natural Science Foundation of China (No. 52076177)

Shaanxi Technical Innovation Guidance Project (Grant No. 2018HJCG-14)

History

Email Address of Submitting Author

ybchen@mail.xjtu.edu.cn

Institution

Xi'an Jiaotong University

Country

China

ORCID For Submitting Author

0000-0002-9912-7655

Declaration of Conflict of Interest

The authors declare no competing financial interest.

Exports

ChemRxiv

Categories

Exports