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... Sulphate ions can be incorporated into zinc imidazolate frameworks to give rise to zinc imidazolate sulphate frameworks, that is, a square-grid network, a zeolite-like GIS framework, or a porous pillar-layered structure where interlayer octahedral Zn²⁺ ions connect honeycomb-like layers. ...
zinc; zinc acetate; zinc oxide, etc ; activated carbon; adsorption; castor oil; cultural heritage; pollutants; polyurethanes; synergism; Show all 10 Subjects
Abstract:
... Acetic acid, a common pollutant present in museums and art galleries, can irreversibly damage works of art. Herein, a sustainable and scalable synthesis of zinc oxide-castor oil polyurethane hybrids (ZnO/COPs), to be used as acetic acid removers in the preventive conservation of Cultural Heritage, is reported. The adsorption capacities of ZnO/COPs were studied in saturated acetic acid atmosphere, ...
zinc; zinc acetate; zinc oxide, etc ; cetyltrimethylammonium bromide; ligands; nanocarriers; nanocomposites; particle size; polyethyleneimine; porous media; silica; water solubility; Show all 12 Subjects
Abstract:
... In this work, mesoporous silica was used as an effective nanocarrier to develop a system that coordinated Zn²⁺ with water-soluble ligands. The obtained nanocomposites showed significant antibacterial properties due to the development of nano zinc oxide. To prepare these nanocomposites, a one-pot method was adopted to synthesize the nano zinc oxide-loaded mesoporous silica (MSN/ZnO) using tetraethy ...
zinc; zinc sulfate, etc ; bacterial growth; gluconates; hydrogen production; lactic acid; models; photosynthesis; technology; Show all 9 Subjects
Abstract:
... The kinetic properties of the hydrogen yield of photosynthetic bacteria were investigated using Han–Levenspiel and modified Gompertz models to determine the effects of different zinc salts on the growth and hydrogen production of the photosynthetic bacterium HAU-M1. Inorganic zinc salts (zinc standard solution and zinc sulfate) inhibited bacterial growth by 1–4-fold higher than organic zinc salts ...
zinc; zinc oxide, etc ; analytical chemistry; carbon; copper; detection limit; dielectric spectroscopy; liquids; potassium; Show all 9 Subjects
Abstract:
... In recent years, various types of nanomaterials and nanoparticles have been very popular, also in analytical chemistry for sensors preparation. Ion-selective electrodes with solid contact were constructed, in which a layer of nanoparticles of selected metal oxides (zinc, copper and iron oxides) obtained by pulsed laser liquid ablation (PLAL) was placed between the glassy carbon solid electrode mat ...
... We synthesised thionium-ion embedded aromatic porphyrinoids: a free-base 5-thiaporphyrinium cation and its zinc complex. The sulphur atom effectively participates in the macrocyclic π-conjugation. Fluorescence quantum yields of thiaporphyrinium cations were lower than 1% unlike oxaporphyrinium cations. Detailed photophysical analysis and DFT calculations clarified the vibrational mode regarding th ...
... The Mn²⁺ dissolution of MnO₂ cathode materials causes rapid capacity decay in aqueous zinc batteries. We herein show that the dissolved Mn²⁺ can be deposited back to the cathode with the aid of a suitable conductive agent. The active material is thus retained for energy storage, and this MnO₂/Mn²⁺ redox process also provides capacity. In the Mn²⁺ free ZnSO₄ electrolyte, MnO₂ delivers 325 mA h g⁻¹ ...
Julie M. Long; Afsana Mim Khandaker; Rahvia Alam Sthity; Jamie E. Westcott; Andrei Matveev; Robert E. Black; Janet C. King; Kazi Munisul Islam; Shams El Arifeen; Tahmeed Ahmed; M. Munirul Islam; Christine M. McDonald; Nancy F. Krebs
exchangeable zinc; zinc, etc ; bioavailability; biomarkers; blood serum; dietary mineral supplements; inflammation; intravenous injection; placebos; urine; Show all 10 Subjects
Abstract:
... A sensitive and reliable biomarker of zinc status has yet to be identified, but observational research suggests that the exchangeable zinc pool (EZP) size may be a possible biomarker. This randomized, placebo-controlled trial aimed to compare the change in EZP size from baseline to endline in 174 children who were preventatively supplemented with 10 mg of zinc as part of a multiple micronutrient p ...
zinc oxide; zinc sulfate, etc ; Cucurbita moschata; anthocyanins; biomass; chlorophyll; pollution; protein content; pumpkins; soil; sugars; Show all 11 Subjects
Abstract:
... The present study investigated that the potential of soil or foliar applied 15 mg/L zinc oxide quantum dots (ZnO QD, 11.7 nm) to enhance pumpkin (Cucurbita moschata Duch.) growth and biomass in comparison with the equivalent concentrations of other sizes of ZnO particles, ZnO nanoparticles (ZnO NPs, 43.3 nm) and ZnO bulk particles (ZnO BPs, 496.7 nm). In addition, ZnSO4 was used to set a Zn²⁺ ioni ...
... The comparative effects of potentiated zinc oxide (pZnO) and antibiotic growth promoters (AGP) supplementation on intestinal morphometry and nutrient digestibility in broiler chickens were studied. Four hundred straight-run Cobb 500-day-old broiler chicks were randomly allotted to four dietary treatments replicated 10 times with 10 birds per replicate. Dietary treatments were as follows: T1: basal ...
... The natural environment is a complex system, and there is never only one kind of nanomaterial entering the environment. However, many studies only considered the plant toxicity of one kind of nanomaterial and do not consider the influence of two or more kinds of nanomaterials on plant toxicity. Multi-walled carbon nanotubes (MWCNTs) and zinc oxide nanoparticles (ZnO NPs) are two common and widely ...
zinc, etc ; composite polymers; copolymerization; platinum; Show all 4 Subjects
Abstract:
... Acrylate monomers with metal complexes were designed to build polymer metal complexes. The ideal copolymerization of monomers with zinc and platinum was performed to obtain random copolymers with a feeding metal composition. The successful nano-colloid preparation from the polymers further highlighted the potential of the method for building multimetallic materials. ...
... Inorganic particles with photocatalytic properties are excellent candidates for the fabrication of micromotors. To achieve self-propulsion, the geometric and chemical symmetries of inorganic particles should be broken. However, the synthesis of micromotors with different geometric and chemical symmetries remains challenging. In this paper, a simple synthesis method is proposed to prepare rod-shape ...
zinc; zinc oxide, etc ; adsorbents; arc furnaces; byproducts; dust; energy; hydrogen sulfide; steel; sulfur; synthesis gas; value added; Show all 12 Subjects
Abstract:
... Electric arc furnace dust (EAFD) is a high-volume steel manufacturing byproduct with currently limited value-added applications. EAFD contains metal oxides that can react with H₂S to form stable sulfides. Hence, the valorization potential of EAFD as an adsorbent material for syngas H₂S removal was investigated. EAFD from European steel plants was characterized and tested in dynamic H₂S breakthroug ...
... The accumulation potency of zinc nanoparticles in Nile tilapia (Oreochromis niloticus) was previously studied but their impacts on proximate chemical composition in muscle tissue by describing the dose-dependent accumulation and the protective role of vitamins (E + C), have not been investigated. Therefore, this study was carried out to assess the protective role of vitamins (E + C) on Zn accumula ...
zinc, etc ; alkylation; heterocyclic compounds; oxidants; solvents; Show all 5 Subjects
Abstract:
... A sustainable strategy for the alkylation of heterocycles is presented. The protocol relies on the in situ generation and further in-line use of alkyl zinc sulfinates through a continuous-flow system. The environmentally friendly character of the protocol is assured by the use of a green solvent mixture, the presence of a metal free oxidant and low waste generation. ...
Partha Pratim Roy; Sohang Kundu; Jesús Valdiviezo; George Bullard; James T. Fletcher; Rui Liu; Shiun-Jr Yang; Peng Zhang; David N. Beratan; Michael J. Therien; Nancy Makri; Graham R. Fleming
zinc, etc ; chemical bonding; energy; porphyrins; spectroscopy; Show all 5 Subjects
Abstract:
... Understanding how the complex interplay among excitonic interactions, vibronic couplings, and reorganization energy determines coherence-enabled transport mechanisms is a grand challenge with both foundational implications and potential payoffs for energy science. We use a combined experimental and theoretical approach to show how a modest change in structure may be used to modify the exciton delo ...
zinc oxide; zinc sulfide, etc ; bismuth; electric current; electric field; fuel production; hydrogen; hydrogen production; industrial wastes; lighting; photoelectrodes; wastewater; Show all 12 Subjects
Abstract:
... Hydrogen (H₂) fuel production from hazardous contaminants is not only of economic importance but also of significance for the environment and health. Hydrogen production is exemplified in this work by using bismuth sulfide (Bi₂S₃) sandwiched in between zinc sulfide (ZnS) and zinc oxide (ZnO) as dual-heterojunction photoelectrode to photoelectrochemically extract H₂ from sulfide- and sulfite-contai ...
... Supplementation of sperm cooling medium with helpful additives is a reasonable method to conserve sperm fertility potential during cooling storage process. This study was aimed to determine the effect of sperm cooling medium supplementation with Zinc and Zinc oxide nanoparticles (NZn and NZnO) on rooster semen quality and fertility efficiency during storage periods. Semen samples were diluted in t ...