Tailoring defects in SrTiO₃ by one step nanoarchitectonics for realizing photocatalytic nitrogen fixation in pure water

Abstract

This work demonstrates the photocatalytic N2 fixation ability of defect-engineered SrTiO3 and provides a stringent experimental protocol to avoid biases in the quantification of NH3 originated by surface contamination of working photocatalysts.

Photocatalytic fixation of nitrogen to ammonia with a Ce/S co-doped TiO2 catalyst: synergistic tuning of heterovalent metal states and oxygen vacancy defects

“…The Vo on TiCeOS-3 plays a critical role in photocatalytic N 2 fixation as an active site, simultaneously activating H 2 O to reduce their activation energies, adsorbing N 2 molecules, lowering NN bond energies, and facilitating N 2 fixation. 67,68 The Vo also acts as an electron capture center, offering unique sites for electron transfer and reducing electron transfer resistance, which promotes the weakening of NN bonds. 38,69 The proposed mechanism of photocatalytic N 2 fixation in TiCeOS is shown in Fig.…”

Construction of a BiVO4/VS-MoS2 S-scheme heterojunction for efficient photocatalytic nitrogen fixation

“…In general, the evolution of photogenerated charges within photocatalysts plays a pivotal role in determining their photocatalytic activity. 43,44 To evaluate the behavior of photogenerated carriers in BiVO 4 /V S -MoS 2 , steady-state photoluminescence (PL) spectrum measurements were first performed. As presented in Fig.…”

Upcycling of Plastic Waste Using Photo-, Electro-, and Photoelectrocatalytic Approaches: A Way toward Circular Economy

“…Photocatalysis is a highly promising and sustainable approach to treating plastic waste because it uses renewable sources of energy. , Additionally, the reaction setup requirements are so low that it makes photocatalysis a very economical strategy . Photocatalysis is conventionally used in various environmental remediation and sustainable development applications like nitrogen fixation, pollutant degradation, , pharmaceutical drug degradation, , hydrogen evolution, , etc. Utilization of a photocatalytic approach to treat plastic waste would be even more beneficial as we are eliminating the most dangerous pollutant in today’s world into various VAP by employing a technique that itself is less energy-demanding and highly sustainable .…”