Adsorption of arsenic (III) by a novel adsorbent prepared from Ocimum sanctum

An economic novel alternative choice for chemical and physical methods for nanoparticles synthesis is green method. Green nano zinc adsorbent (ZnO-NPs-AS-Os) embedded with activated silica is synthesized from the aqueous leaf extract of Ocimum sanctum using Zinc acetate dihydrate and sodium hydroxide. The phytoconstituents present in the leaf extract is responsible for the formation, capping and stabilization of adsorbent (ZnO-NPs-AS-Os). The adsorbent is characterized by SEM for its morphology, XRD for its crystallinity, EDAX for its elemental constitution and FT- IR for phytocostituents present. The results confirmed the formed nano needle shaped adsorbent of 200nm is effective in removing As(III) ions from aqueous solution

Y3+ and Sm3+ co-doped mixed metal oxide nanocomposite: Structural, electrochemical, photocatalytic, and antibacterial properties

Nanocomposite materials (rare-earth doped) are famous and tend to demonstrate good features in all the fields like photocatalysis, electrochemical, and antibacterial. A Wet-chemical route was used to prepare NiO-CYO-CSO [NiO-Ce0.9Y0.1O2-δ–Ce0.9Sm0.1O2-δ] nanocomposite successfully for different uses. The growth of fluorite cubic structure and absence of secondary phase was detected by X-ray diffraction. Metal-oxygen bond at 410.7 cm−1 was unveiled by Fourier transform infrared spectroscopy. The morphology and element composition of the material was characterized using Scanning electron microscopy and Energy dispersive absorption X-ray spectroscopy. The optical bandgap of the sample was deliberated using UV-Vis spectroscopy and the projected bandgap of NiO-CYO-CSO composite was found to be 3.54 eV. Impedance studies were done at conditions such as the frequency range (40  to 6 kHz) and voltage-1.3 V. The photocatalytic and antibacterial activities of NiO-CYO-CSO nanocomposite was also examined. Furthermore, the synthesized NiO-CYO-CSO will apply to wastewater treatment and pharmaceutical applications

Two-dimensional based hybrid materials for photocatalytic conversion of carbon dioxide into hydrocarbon fuels: A mini review

Carbon dioxide conversion to chemicals and fuels based on two-dimensional based hybrid materials will present a thorough discussion of the physics, chemistry, and electrochemical science behind the new and important area of materials science, energy, and environmental sustainability. The tremendous opportunities for two-dimensional based hybrid materials in the photocatalytic carbon dioxide conversion field come up from their huge number of applications. In the carbon dioxide conversion field, nanostructured metal oxide with a two-dimensional material composite system must meet assured design and functional criteria, as well as electrical and mechanical properties. The whole content of the proposed review is anticipated to build on what has been learned in elementary courses about synthesizing two-dimensional nanomaterials, metal oxide with composites, carbon dioxide conversion requirements, uses of two-dimensional materials with nanocomposites in carbon dioxide conversion as well as fuels and the major mechanisms involved during each application. The impact of hybrid materials and synergistic composite mixtures which are used extensively or show promising outcomes in the photocatalytic carbon dioxide conversion field will also be discussed.</jats:p

Двовимірні гібридні матеріали для фотокаталітичного перетворення вуглекислого газу у вуглеводневі палива: міні-огляд

Carbon dioxide conversion to chemicals and fuels based on two-dimensional based hybrid materials will present a thorough discussion of the physics, chemistry, and electrochemical science behind the new and important area of materials science, energy, and environmental sustainability. The tremendous opportunities for two-dimensional based hybrid materials in the photocatalytic carbon dioxide conversion field come up from their huge number of applications. In the carbon dioxide conversion field, nanostructured metal oxide with a two-dimensional material composite system must meet assured design and functional criteria, as well as electrical and mechanical properties. The whole content of the proposed review is anticipated to build on what has been learned in elementary courses about synthesizing two-dimensional nanomaterials, metal oxide with composites, carbon dioxide conversion requirements, uses of two-dimensional materials with nanocomposites in carbon dioxide conversion as well as fuels and the major mechanisms involved during each application. The impact of hybrid materials and synergistic composite mixtures which are used extensively or show promising outcomes in the photocatalytic carbon dioxide conversion field will also be discussed.Перетворення вуглекислого газу в хімічні речовини та паливо на основі двовимірних гібридних матеріалів є сьогодні важливим питанням для ґрунтовних обговорень у фізиці, хімії та електрохімії за новими та важливими галузями матеріалознавства, енергетики та екологічної стійкості. Величезні можливості для двовимірних гібридних матеріалів в області фотокаталітичного перетворення вуглекислого газу виникають завдяки широким можливостям їх застосування. У галузі перетворення вуглекислого газу наноструктуровані оксиди металу з двовимірною композитною системою матеріалу повинні відповідати гарантованим конструктивним та функціональним критеріям, а також відповідним електричним та механічним властивостям. Відповідно, запропонований огляд базується на вивчених на цей час даних про синтез двовимірних наноматеріалів, оксиду металу із композитами, вимог щодо перетворення вуглекислого газу, використання двовимірних матеріалів з нанокомпозитами при перетворенні вуглекислого газу, як палива та основні механізми, задіяні при цьому. Також обговорено вплив гібридних матеріалів та синергетичних композиційних сумішей, які широко використовуються або мають перспективи в області фотокаталітичного перетворення вуглекислого газу