Role of Photocatalysts in Organic Pollutants Degradation

Sagir, Muhammad; Tahir, Muhammad Bilal; Waheed, Usama

doi:10.1016/b978-0-12-815732-9.00004-8

Cited by 3 publications

(1 citation statement)

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Studies on photocatalysis have been extensively carried out in the past decades for water splitting, 1, 2 CO2 reduction, 3,4 nitrogen fixation, 5 production of value-added chemicals, 6 and contaminant degradation. 7 As early as 1921, Baly et al firstly used the term "photocatalysis" to summarize a photochemical synthesis process in the living plant. 8 In 1972, Fujishima et al discovered the "semiconductor electrochemical photolysis" phenomenon, 9 and then they generalized this research

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confidence: 99%

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

Wu¹,

Chen

2021

Preprint

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<p>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 <a></a><a>rectified</a>. 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.</p>

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confidence: 99%