A series of TiO(2)-Cu(2)O mixed oxides were prepared by the hydrolysis of titanium butoxide and reduction of copper acetate with hydrazine. These composite oxides were characterized by X-ray diffraction (XRD), inductively coupled plasma spectrometry (ICP), high-resolution transmission electron microscopy (HRTEM), N(2) adsorption and UV-vis techniques. Photocatalytic degradation of dodecyl-benzenesulfonate (DBS) under visible irradiation was performed, and effects of composition of catalysts and reaction conditions were studied. It was observed that TiO(2)-Cu(2)O composite oxides exhibited better photocatalytic activity than Cu(2)O or TiO(2) alone. Among these composite oxides, the 5%TiO(2)-Cu(2)O displayed the highest activity, and the degradation percentage of DBS and COD reached 97.3% and 65%, respectively. In addition, it was found that the decomposition of DBS followed the first-order kinetics and the adsorption of DBS followed the Langmuir model. Oxygen in solution played a vital role in the elimination of COD.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jhazmat.2009.02.020 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reducing noble metal dependence: oxygen evolution reaction with a Ru-minimized BiRuO@MOF-801 composite.
Nanoscale
January 2025
Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
Developing efficient and noble metal-minimized electrocatalysts for the oxygen evolution reactions (OER) is critical for energy conversion reactions. Here we present Ru-minimized BiRuO@MOF-801 that synergistically combines the high catalytic activity of the bimetallic oxide with the unique structural and hydrophilic properties of the Zr-MOF. The composite achieves superior OER performance with a low overpotential of 307 mV at 50 mA cm and a Tafel slope of 99.
View Article and Find Full Text PDFAmelioration of Obesity-Related Disorders in High-Fat Diet-Fed C57BL/6 Mice Following Fecal Microbiota Transplantation From DL-Norvaline-Dosed Mice.
Mol Nutr Food Res
January 2025
College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
Fecal microbiota transplantation (FMT) could significantly alter the recipient's gut bacteria composition and attenuate obesity and obesity-related metabolic syndromes. DL-norvaline is a nonproteinogenic amino acid and possesses anti-obesity potential. However, the specific mechanisms by which gut microbiota might mediate beneficial effects of DL-norvaline have not been completely elucidated.
View Article and Find Full Text PDFThe association between comprehensive dietary antioxidant index and erectile dysfunction in adult men: a cross-sectional study from the 2001-2004 U.S. National Health and Nutrition Examination Survey.
Sex Med
December 2024
Department of Urology, Hospital of Chengdu University of Traditional Chinese Medicine, Sichuan, Chengdu 610072, China.
Background: Increasing evidence suggests that a diet rich in antioxidants may prevent erectile dysfunction (ED), but the impact of comprehensive dietary antioxidants on ED has been little studied.
Aim: To investigate the association between the composite dietary antioxidant index (CDAI) and ED risk in adult men.
Methods: The study performed a cross-sectional analysis using data from the 2001-2004 National Health and Nutrition Examination Survey to investigate the association between the composite dietary antioxidant index (CDAI) and ED.
Systematic Characterization of the Chemical Constituents of in Vitro and in Vivo of Astragali Radix-Salvia miltiorrhiza Herb Pair by Ultra-High-Performance-Liquid Chromatography-Orbitrap Mass Spectrometry.
Rapid Commun Mass Spectrom
April 2025
School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Rationale: Astragali radix-Salvia miltiorrhiza (AR-SM) is an herb pair with good therapeutic effects and is widely used. In this study, the in vitro and in vivo components of AR-SM were quickly classified and identified based on UHPLC-orbital mass spectrometry. This provided a basis for clarifying the bioactive substances after compatibility of AR and SM.
View Article and Find Full Text PDFBatch and semi-continuous fermentation with Parageobacillus thermoglucosidasius DSM 6285 for H production.
Biotechnol Biofuels Bioprod
January 2025
Section II: Electrobiotechnology, Institute of Process Engineering in Life Science, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany.
Background: Parageobacillus thermoglucosidasius is a facultatively anaerobic thermophile that is able to produce hydrogen (H) gas from the oxidation of carbon monoxide through the water-gas shift reaction when grown under anaerobic conditions. The water-gas shift (WGS) reaction is driven by a carbon monoxide dehydrogenase-hydrogenase enzyme complex. Previous experiments exploring hydrogenogenesis with P.
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!