NiFeCO(3) hydrotalcites with Ni/Fe molar ratio of 3 were synthesized by co-precipitation method at constant pH, followed by hydrothermal treatment at various temperatures 85-180 degrees C for 3-360h. The obtained materials were characterized by XRD analysis, FT-IR spectroscopy, SEM and TEM microscopy, TGA and BET techniques. The resulting materials were found to be similar to the hydrotalcite with a well-defined hexagonal morphology of crystallites. The hydrothermal treatment and aging time increases the platelet sizes and decreases the surface area. XRD analysis showed the formation of sharper and intense peaks, which might indicate the larger crystallites size of LDH as well as higher crystallinity. Furthermore, textural studies revealed influence of aging time and temperature on the properties of the crystalline phase. The prolonged time tends to form additional products, identified as NiFe(2)O(4) spinel and NiO nickel oxide. The effect of hydrothermal treatment temperature on the kinetics of dye removal has been explored. It was found that the percentage color removal increases with increasing hydrothermal treatment temperature up to 140 degrees C and aging time up to 4 days. Furthermore, the color removal decreases with increasing hydrothermal treatment temperature up to 140-180 degrees C and prolonged aging time.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jhazmat.2008.09.125 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Insights into the regulation mechanisms of dual hydrothermal treatment on the structure and digestive characteristics of A- and B-type wheat starch granules.
Food Res Int
January 2025
State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng 475004, China; Food Laboratory of Zhongyuan, Luohe 462300, China. Electronic address:
Hydrothermal treatment is a physical modification technology to alter starch structures for the production of resistant starch (RS). However, the underlying regulation mechanism of the multiscale structure and digestive properties of starch by dual hydrothermal synergistic treatment remains unclear. To solve this problem, A- and B-type wheat starch granules (AWS and BWS) were separated and subjected to toughening and heat-moisture synergistic treatment (THT) with various moisture content (10 %, 15 %, 20 %, 25 %).
View Article and Find Full Text PDFExtruded Quinoa Flour Applied for the Development of Gluten-Free Breads: a Technological, Sensory and Microstructural Approach.
Plant Foods Hum Nutr
January 2025
Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Bernal, Argentina.
Quinoa flour due to its nutritional and sensory characteristics could be used as an ingredient to improve the nutritional and technological properties of gluten-free bread. Furthermore, the application of hydrothermal processes such as extrusion can enhance their native properties. Hence, our objective was to evaluate how the incorporation of extruded quinoa flours (EQFs) affects the technological, sensory and nutritional quality of gluten-free bread.
View Article and Find Full Text PDFZinc oxide nanoparticles decorated nitrogen doped porous reduced graphene oxide-based hybrid to sensitive detection of hydroxychloroquine in plasma and urine.
J Mater Sci Mater Med
January 2025
Department of Chemistry, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran.
The antimalarial hydroxychloroquine (HCQ) has considered for the treatment of systemic lupus erythematosus. Moreover, HCQ has been used as a drug to treat Coronavirus disease (COVID-19). In this work, nitrogen doped porous reduced graphene oxide (NprGO) has been prepared via environmentally friendly process using Fummaria Parviflora extract.
View Article and Find Full Text PDFEffect of Substituent Groups on the Adsorption Efficiency of Phenols by Activated Carbon Developed by Hydrothermally Treated Phyllanthus Emblica Fruit Stone.
Toxics
November 2024
Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran 1416634793, Iran.
In this study, the novel activated carbon developed from fruit stone, through hydrothermal treatment at low pressure and temperature, was utilized for the removal of 4-nitrophenol, 4-chlorophenol, and phenol from water. The activated carbon produced (AC-HTPEFS) showed a well-developed porosity with a surface area of 569 m g and a total pore volume of 0.342 cm g.
View Article and Find Full Text PDFQuaternized chitosan templated MoS nanohybrids for photothermal-enhanced synergistic antibacterial therapy.
Int J Biol Macromol
January 2025
Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China. Electronic address:
Bacterial infections have become a fatal issue for human health. The excessive use of antibiotics leads to bacterial resistance. It is of great importance to develop alternate antimicrobial nanomaterials for effective antibacterial therapy.
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!