One-pot synthesis of Ag-modified SrTiO3: synergistic effect of decoration and doping for highly efficient photocatalytic NOx degradation under LED

Ordonez, M. Frias; Cerrato, G.; Michele, Alessandro Di; Falletta, Ermelinda; Bianchi, Claudia L.

doi:10.1016/j.jece.2023.110368

Cited by 12 publications

(1 citation statement)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a recent study, a one-pot synthesis of photocatalyst SrTiO 3 , doubly modified with silver nanoparticles, was carried out to yield highly stable photocatalysts with BET surface areas as high as 16 m 2 g −1 , pore size of 19 nm, and a reduction in the energy band from 3.2 eV in undoped catalysts to 2.8 eV in the modified ones. The double modifications carried out were the following: doping the photocatalysts with silver nanoparticles and depositing the nanoparticles on the catalyst surface viawet impregnation method [73]. In the recent study on MXene-based TiO 2 catalysts, the specific surface area of hierarchical flower-like TiO 2 microspheres decorated with dual cocatalysts-namely, Ti 3 C 2 nanosheets and Ag-measured using N 2 adsorption-desorption isotherms was ~100 m 2 /g, a value slightly lower than pristine TiO 2 .…”

Section: Structural Modifications Of Doped Photocatalystsmentioning

confidence: 99%

Advancements in Doping Strategies for Enhanced Photocatalysts and Adsorbents in Environmental Remediation

Sen,

Bhattacharya,

Mukherjee

et al. 2023

Technologies

View full text Add to dashboard Cite

Environmental pollution poses a pressing global challenge, demanding innovative solutions for effective pollutant removal.. Photocatalysts, particularly titanium dioxide (TiO2), are renowned for their catalytic prowess; however, they often require ultraviolet light for activation. Researchers had turned to doping with metals and non-metals to extend their utility into the visible spectrum. While this approach shows promise, it also presents challenges such as material stability and dopant leaching. Co-doping, involving both metals and non-metals, has emerged as a viable strategy to mitigate these limitations. Inthe fieldof adsorbents, carbon-based materials doped with nitrogen are gaining attention for their improved adsorption capabilities and CO2/N2 selectivity. Nitrogen doping enhances surface area and fosters interactions between acidic CO2 molecules and basic nitrogen functionalities. The optimal combination of an ultramicroporous surface area and specific nitrogen functional groups is key to achievehigh CO2 uptake values and selectivity. The integration of photocatalysis and adsorption processes in doped materials has shown synergistic pollutant removal efficiency. Various synthesis methods, including sol–gel, co-precipitation, and hydrothermal approaches had been employed to create hybrid units of doped photocatalysts and adsorbents. While progress has been made in enhancing the performance of doped materials at the laboratory scale, challenges persist in transitioning these technologies to large-scale industrial applications. Rigorous studies are needed to investigate the impact of doping on material structure and stability, optimize process parameters, and assess performance in real-world industrial reactors. These advancements are promising foraddressing environmental pollution challenges, promoting sustainability, and paving the way for a cleaner and healthier future. This manuscript provides a comprehensive overview of recent developments in doping strategies for photocatalysts and adsorbents, offering insights into the potential of these materials to revolutionize environmental remediation technologies.

show abstract

Section: Structural Modifications Of Doped Photocatalystsmentioning

confidence: 99%