AI Article Synopsis
- A novel oxide composed of bismuth (Bi) and silver (Ag) was synthesized using a simple ball milling method, resulting in the successful creation of the AgBiO photocatalyst.
- The photocatalytic activity of AgBiO was tested with gaseous toluene, demonstrating high efficiency under visible light and strong stability.
- The mechanism of its effectiveness involves the generation of reactive oxygen species (ROS) facilitated by oxygen vacancies, as supported by DFT calculations indicating a band gap of 1.758 eV, paving the way for new approaches in air pollution remediation.
Article Abstract
In this work, a novel oxide combined with bismuth (Bi) and silver (Ag) was prepared via simple ball milling. This substance was optimized by adjusting the amount of pre-source. Preliminary characterization results confirmed the successful synthesis of AgBiO. Subsequently, gaseous toluene was selected as model compound to evaluate the photocatalytic activity of AgBiO photocatalyst. According to the degradation results, AgBiO performed excellent visible light-driven photocatalytic activity with high stability. For the oxidation process of gaseous compound, reactive oxygen species (ROS) were responsible for the achievement, and the formation of oxygen vacancies on AgBiO were involved in the generation of ROS to promote the transfer of photogenerated electrons, and improving photocatalytic activity. DFT calculations revealed the theoretical band gap of AgBiO bulk is 1.758 eV. And the work function of AgBiO (112)ov was ca. at 4.447 eV. The material was easily fabricated and a reliable path was provided for the synthesis of new and efficient photocatalyst for the remediation of polluted indoor air.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.envres.2021.111130 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Merits photocatalytic activity of rGO/zinc copper ferrite magnetic nanocatalyst for photodegradation of methylene blue (MB) dye.
Discov Nano
January 2025
Department of Chemical Engineering, Military Technical College (MTC), Cairo, Egypt.
The world is now facing a water scarcity crisis due to waste, pollution, and uneven distribution of freshwater resources, which are limited. Thus, the creation of innovative, economical, and effective methods for purifying water is crucial. Here, the photo-assisted degradation of methylene blue (MB) dye under visible light and UV was achieved by using RGO photocatalyst loaded with ZnCuFeO in three different loaded 10%, 20%, and 30% called MRGO 10, MRGO 20, and MRGO 30.
View Article and Find Full Text PDFFluorine-expedited nitridation of layered perovskite SrTiO for visible-light-driven photocatalytic overall water splitting.
Nat Commun
January 2025
Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, China.
Photocatalytic overall water splitting is a promising approach for a sustainable hydrogen provision using solar energy. For sufficient solar energy utilization, this reaction ought to be operated based on visible-light-active semiconductors, which is very challenging. In this work, an F-expedited nitridation strategy is applied to modify the wide-bandgap semiconductor SrTiO for visible-light-driven photocatalytic overall water splitting.
View Article and Find Full Text PDFCarbon nitride caught in the act of artificial photosynthesis.
Nat Commun
January 2025
Max Planck Institute of Colloids and Interfaces, Colloid Chemistry Department, Am Mühlenberg 1, 14476, Potsdam, Germany.
Covalent semiconductors of the carbon nitride family are among the most promising systems to realize "artificial photosynthesis", that is exploiting synthetic materials which use sunlight as an energy source to split water into its elements or converting CO into added value chemicals. However, the role of surface interactions and electronic properties on the reaction mechanism remain still elusive. Here, we use in-situ spectroscopic techniques that enable monitoring surface interactions in carbon nitride under artificial photosynthetic conditions.
View Article and Find Full Text PDFIsolated Neutral Organic Radical Unveiled Solvent-Radical Interaction in Highly Reducing Photocatalysis.
Angew Chem Int Ed Engl
January 2025
The University of Arizona, Chemistry and BioChemistry, 1306 E University Blvd, CSML 638, 85719, Tucson, UNITED STATES OF AMERICA.
Diffusion-limited kinetics is a key mechanistic debate when consecutive photoelectron transfer (conPET) is discussed in photoredox catalysis. In-situ generated organic photoactive radicals can access catalytic systems as reducing as alkaline metals that can activate remarkably stable bonds. However, in many cases, the extremely short-lived transient nature of these doublet state open-shell species has led to debatable mechanistic studies, hindering adoption and development.
View Article and Find Full Text PDFEnhanced CO₂ Photoreduction to Methane via Schottky Zn₃N₂/KPCN Heterojunctions for Sustainable Energy Applications.
Environ Res
January 2025
School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China. Electronic address:
The pressing necessity to mitigate climate change and decrease greenhouse gas emissions has driven the advancement of heterostructure-based photocatalysts for effective CO₂ reduction. This study introduces a novel heterojunction photocatalyst formed by integrating potassium-doped polymeric carbon nitride (KPCN) with metallic Zn₃N₂, synthesized via a microwave-assisted molten salt method. The resulting Schottky contact effectively suppresses the reverse diffusion of electrons, achieving spatial separation of photogenerated charges and prolonging their lifetime, which significantly enhances photocatalytic activity and efficiency.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!