Photoelectrocatalysis as a high-efficiency platform for pulping wastewater treatment and energy production

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

“…Researchers have suggested using quantum efficiency as an elaborated index for assessing the performances of different photocatalytic systems for comparison purposes (Anwer and Park 2018 ; Younis et al 2020 ). Recently, quantum efficiency has generally become one of the preferred performance metrics for removing various organic pollutants from water environments using photocatalytic materials (Rajput et al 2021 ; Vellingiri et al 2020 ). Quantum efficiency is defined as the per unit amount of absorbed photons used to effectively decompose the molecular number of pollutants (Vikrant et al 2020 ).…”

A Convenient Procedure for Preparing BiOX–TiO2 Photoelectrocatalytic Electrodes from a Titanium–Oxo Compound-Modified Carbon Fiber Cloth

“…In this immobilized catalyst, the same reactions occurred on the surface of the CFC-supported BiOX–TiO 2 catalyst. During the PEC process, a low positive bias was applied to the photocatalyst, and the electrons moved to the external circulation, which significantly facilitated the separation of photoinduced carriers. − Electrochemical impedance spectroscopy (EIS) is a powerful technique for characterizing interface reactions and electrode kinetics. Figure b shows the Nyquist plots of the electrodes corresponding to their EIS response.…”

“…Since the beginning of this century, combined electrocatalysis (EC) and photocatalysis (PC) have attracted a great deal of attention, and photoelectrocatalysis (PEC) shows great potential compared with individual EC and PC processes. The PEC process can separate photoinduced carriers upon application of a relatively lower bias and can minimize electron–hole recombination, thereby improving the photocatalytic performance. − …”

Challenges surrounding nanosheets and their application to solar-driven photocatalytic water treatment

“…This could either be intrinsic to the photocatalyst material itself, or through some external implementation. This opens up other methods of application, such as photoelectrocatalysis, 72 where the photocatalyst is held within an anode, in contact with the water but not allowed to mix directly. This makes practical sense at a cost to efficiency, 73 implying that the ideal implementation is one that looks at photocatalysis as an entire process when designing a PC, thereby ensuring that the material developed covers both efficient and practical application.…”