MgAC-FeO/TiO hybrid nanocomposites were synthesized in different ratios of MgAC-FeO and TiO precursor. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray fluorescence spectrometry (XRF), electron spin resonance spectrometry (ESR), Brunauer-Emmett-Teller (BET), photoluminescence (PL), and UV photoelectron spectroscopy (UPS) were used to characterize the nanocomposites. The increase of MgAC-FeO, in the hybrid nanocomposites' core-shell structure, led to the decrease of anatase TiO peaks, thus reducing the photo-Fenton and photocatalytic activities. According to the obtained data, MgAC-FeO [0.05 g]/TiO showed the best photo-Fenton and photocatalytic activities, having removed ~93% of MB (photo-Fenton reaction) and ~80% of phenol (photocatalytic reaction) after 20 and 80 mins, respectively. On the pilot scale (30 L), MgAC-FeO [0.05 g]/TiO was completely removed after 27 and 30 hours by the photo-Fenton and photocatalytic activities, respectively. The synergistic effect gained from the combined photo-Fenton and photocatalytic activities of FeO and TiO, respectively, was credited for the performances of the MgAC-FeO/TiO hybrid nanocomposites.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6694146 | PMC |
| http://dx.doi.org/10.1038/s41598-019-48398-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Oxygen vacancy-rich defective tungsten oxide (WO) modified by Prussian blue for efficient photocatalytic carbon dioxide conversion and tetracycline degradation.
J Colloid Interface Sci
December 2024
Laboratory of Alternative Energy Conversion Systems, Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos 38834, Greece. Electronic address:
The coupling of carbon dioxide (CO) with epoxides to produce cyclic carbonates is a desirable decarbonization approach, but its commercial applicability is still restricted by the costly catalysts required, as well as the need for high temperature and high pressure. Herein, oxygen vacancy-rich defective tungsten oxide (WO) rich in Lewis acid sites was modified by Prussian blue (PB), and the obtained composite reaches up to 94 % styrene carbonate yield (171 mmol gh) at ambient temperature and pressure, exhibiting outstanding advantages in the photocatalytic CO cycloaddition reaction compared with currently reported photocatalysts. It is found that the introduction of PB with photothermal properties significantly enhances the capability of WO to absorb and activate CO and epoxide, along with its light utilization ability.
View Article and Find Full Text PDFBovine bone-based activated carbon composite containing nanomagnetite as a catalyst for photo-Fenton reactions.
Environ Sci Pollut Res Int
December 2024
Laboratório de Cerâmica Técnica (CerTec), Grupo de Biomateriais E Materiais Nanoestruturados, Programa de Pós-Graduação Em Ciência E Engenharia de Materiais (PPGCEM), Universidade Do Extremo Sul Catarinense, Criciúma, SC, CEP 88806-000, Brazil.
Magnetic composites (MC) prepared from magnetite nanoparticles (MNP) and activated carbon from bovine bone (AC) in different proportions (75/25, 50/50, and 25/75) were used as catalysts in the photo-Fenton process to degrade methylene blue (MB) in aqueous solution. The materials were prepared by the citrate-nitrate sol-gel synthesis method and used as catalysts in the photo-Fenton process. The photocatalytic tests were performed in a cylindrical reactor with a 4.
View Article and Find Full Text PDFMesoporous NiFe2O4@g-C3N4-based p-n Heterostructures for Boosting Solar-Driven Photocatalytic Dye Degradation and Hydrogen Evolution.
Chem Asian J
December 2024
SN Bose National Centre for Basic Sciences, Condensed Matter and Materials Physics, JD Block, Sector III, 700106, Salt Lake City, INDIA.
Mass-fraction-optimized heterojunction composites featuring precisely engineered interfaces and mesoporous structures are crucial for improving light absorption, minimizing electron-hole recombination, and boosting overall catalytic efficiency. Herein, highly efficient mesoporous-NiFe2O4@g-C3N4 heterojunctions were developed by embedding p-type NiFe2O4 nanoparticles (NPs) within n-type porous ultrathin g-C3N4 (p-uCN) nanosheets. The optimized NiFe2O4@g-C3N4, loaded with 20wt% magnetic counterparts, exhibits exceptional photocatalytic methylene blue degradation, achieving the highest performance in both photocatalytic and photo-Fenton processes with rate constants of 0.
View Article and Find Full Text PDFBagasse modification of red mud for efficient photocatalytic degradation of real dye wastewater: An utilization attempt for massive waste.
Environ Res
December 2024
School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China. Electronic address:
The high concentration of metal compounds found in red mud (RM) can serve as cost-effective raw materials for photo Fenton catalysts in the treatment of organic dye wastewater. In this study, RM was modified with bagasse using a hydrothermal method to prepare a photo-Fenton catalyst. The degradation efficiency of Rhodamine (RhB) solution under different conditions was evaluated.
View Article and Find Full Text PDFPreparation and Antibacterial Performance Study of CeO/g-CN Nanocomposite Materials.
Molecules
November 2024
School of Material and Chemical Engineering, Zhengzhou University of Light Industry, 136 Kexue Road, Zhengzhou 450002, China.
In response to the challenges of food spoilage and water pollution caused by pathogenic microorganisms, CeO/g-CN nanocomposites were synthesized via one-step calcination using thiourea and urea as precursors. Steady-state photoluminescence (PL) spectroscopy analysis demonstrated that 8 wt% CeO/g-CN exhibited superior electron-hole separation efficiency. Quantitative antimicrobial assays demonstrated that the nanocomposites displayed enhanced bactericidal activity against , , and .
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!