نتایج جستجو برای: layered double hydroxides ldhs
تعداد نتایج: 272292 فیلتر نتایج به سال:
Ultrafine layered double hydroxides (LDHs) have abundant hydroxy groups at their edge sites, serving as anchor sites for metal NPs. Furthermore, transformation of ultrafine LDHs into mixed oxides (MMOs) generates oxygen vacancies, which are advantageous O2 activation during Au-catalyzed CO oxidation. We used Ni-Ti with low crystallinity or MMOs supported on SiO2 onto Au NPs were deposited by de...
Electrocatalytic CO2 reduction reaction (CO2RR) has attracted considerable attention as a technology to recycle carbon dioxide (CO2) into raw materials for chemicals using renewable energies. In this study, the electrocatalytic CO2RR activity of Zn-Al layered double hydroxides (LDHs) was studied. LDHs loaded sheets were prepared, and RR performed CO2-saturated KHCO3 electrolyte confirm catalyti...
Layered double hydroxides (LDHs) are regarded as potential adsorbents for water treatment from a wide range of pollutants. However, there only few studies concerning application LDHs elimination microorganisms aquatic systems. In this work, experiments were conducted to investigate the efficiency commercial synthetic hydrotalcite Mg6Al2(CO3)(OH)16∙4H2O an adsorbent purification fecal indicator ...
While the versatile composition of layered double hydroxides (LDHs) allows introduction almost any polyvalent cation in their structure, exchangeable negatively charged ions intercalated between plates increase vast range functionalities. Here we report on preparation and optical properties pillared Eu3+-substituted ZnAl LDHs by aliphatic dicarboxylates: ?OOC?(CH2)n–2?COO?. The basal distance t...
Highly active and low-cost electrocatalysts for water oxidation are required due to the demands on sustainable solar fuels; however, developing highly efficient catalysts to meet industrial requirements remains a challenge. Herein, we report a monolayer of nickel-vanadium-layered double hydroxide that shows a current density of 27 mA cm(-2) (57 mA cm(-2) after ohmic-drop correction) at an overp...
Four diverse chlorides layered double hydroxides with diverse ratios, i.e. Mg-Al (3:1), Mg-Al (4:1), Zn-Al (4:1), and Zn-Al (3:1) LDHs, were prepared to evaluate their efficiency and selectivity towards nitrate removal from aquatic solutions. A batch experiment was done at the initial nitrate concentration of 5-1000 mg/L, pH 5 to 12, and contact time of 5-180 min. Isotherms of nitrate adsorptio...
Fluoride excess in water represents an environmental issue and a risk for human health since it can cause several diseases, such as fluorosis, osteoporosis, damage of the nervous system. Layered double hydroxides (LDHs) be exploited to remove this contaminant from by taking advantage their high ion-exchange capability. LDHs are generally mixed with polluted form powders, which then problem unea...
Aqueous Zn-ion batteries (ZIBs) have garnered significant interest in recent years due to their potential applications large-scale stationary energy storage. Early ZIBs research has primarily focused on searching for better cathodes and understanding cathodic Zn 2+ storage mechanisms. Only very recently shifted anode. Here this study, we report insights into the interactions between anode aqueo...
3D hierarchical layer double hydroxides (LDHs) have attracted extensive interest due to their unique electronic and catalytic properties. Unfortunately, the existing preparation methods require high temperature or toxic organic compounds, which limits the applications of the 3D hierarchical LDHs in biocatalysis and biomedicine. Herein, we present a green strategy to synthesize "Desert Rose Ston...
BACKGROUND During the past few decades, the occurrence of superficial fungal infections has rapidly increased. As the fungal infections take longer time to get cured, concepts such as designing drugs with extended persistence and controlled release have gained attention. In this context, nanotechnology has been identified as the latest technological revolution which has opened up new pathways f...
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