Crystal structure of the orthorhombic basic copper nitrate, Cu2(OH)3NO3

1982 ◽  
Vol 12 (6) ◽  
pp. 507-517 ◽  
Author(s):  
Bruna Bovio ◽  
Stelio Locchi
Keyword(s):  
Crystal Structure ◽  
Copper Nitrate ◽  
Basic Copper Nitrate

Luminescence Intensity Enhancement of Copper Doped Hydronium Alunite Synthesized under Hydrothermal Conditions Using Sulfates Solution

2014 ◽  
Vol 90 ◽  
pp. 127-132
Author(s):  
Yuichiro Kuroki ◽  
Takashi Hatsuse ◽  
Tomoichiro Okamoto ◽  
Masasuke Takata
Keyword(s):  
Crystal Structure ◽  
Luminescence Intensity ◽  
Single Phase ◽  
Elemental Sulfur ◽  
Nitrate Solution ◽  
Hydrothermal Condition ◽  
Copper Nitrate ◽  
Hydrothermal Conditions ◽  
Photoluminescence Peak ◽  
Blue Photoluminescence

A novel phosphor, copper doped hydronium alunite ((H3O)Al3(SO4)2(OH)6:Cu), exhibiting a blue photoluminescence peak at a wavelength of 420 nm was successfully synthesized from aluminum and copper sulfates solution under hydrothermal condition (240 °C, 60 min). The measurement of XRD revealed that the obtained products were single phase with a crystal structure of (H3O)Al3(SO4)2(OH)6. Luminescence intensity of (H3O)Al3(SO4)2(OH)6:Cu synthesized from sulfates solution was 6.2 times higher than that from an aluminum nitrate solution mixed with an elemental sulfur and a copper nitrate solution. The increase of luminescence intensity was resulted from an improvement of the crystallinity of (H3O)Al3(SO4)2(OH)6.

scholarly journals Influence of Cu(NO3)2 content used in thermal shock method on the photocatalytic activity of Cu-Modified ZnO nanoparticles

2021 ◽  
Vol 5 (3) ◽  
pp. first
Author(s):  
Thế Luân Nguyễn ◽  
Tiến Khoa Lê ◽  
Châu Ngọc Hoàng ◽  
Hữu Khánh Hưng Nguyễn ◽  
Thị Kiều Xuân Huỳnh
Keyword(s):  
Crystal Structure ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Thermal Shock ◽  
Photoelectron Spectroscopy ◽  
Copper Content ◽  
Uv Light ◽  
Copper Nitrate ◽  
X Ray ◽  
Doped Zno

The Cu doped ZnO photocatalysts were prepared on ZnO substrate modified with copper nitrate by thermal shock method with different ratio % molar Cu : Zn = 0.3, 0.5, 1.0, 2.0 and 5.0 in order to study the impacts of copper content on the photocatalytic activity of ZnO under both UV and Vis light irradiation. The crystal structure, morphology bulk and surface were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Their photocatalytic activities were studied via time-dependent degradation of methylene blue in aqueous solution. The results exhibit that crystal structure and morphology of Cu doped ZnO photocatalysts is not modified significally than ZnO original but surface charateristicschanged greatly. The photocatalyst was doped with copper content under 2% showed formation of Cu species. These samples perform photocatalytic activity higher than ZnO. The CuNZO-0.05-500 had the highest rate constants for methylene blue degradation (kUV = 6,901 h-1, kVIS = 0,224 h-1), which are about 2.2 times and 1.3 times higher than unmodified ZnO under UV light and Vis light, respectively. However, the CuNZO-5.0-500 which had the formation of CuO phase and unchangeable ZnO's surface has photocatalytic activity similar to pure ZnO.

II.—The Preparation and Properties of Basic Copper Nitrate and the Hydrates of Copper Nitrate

1913 ◽  
Vol 32 ◽  
pp. 4-11
Author(s):  
Alexander Charles Cumming ◽  
Alexander Gemmell
Keyword(s):  
Transition Temperature ◽  
Nitric Acid ◽  
Specific Gravity ◽  
Copper Oxide ◽  
Copper Nitrate ◽  
Basic Salt ◽  
Acid Yield ◽  
Nitrate Trihydrate ◽  
Basic Copper Nitrate ◽  
Dilute Nitric Acid

SUMMARY1. Graham states that when nitric acid of specific gravity greater than 1·4 acts on copper oxide a basic nitrate is obtained. We were unable to obtain a basic salt under these conditions.2. Copper oxide and approximately 100 per cent. nitric acid yield copper nitrate trihydrate, nitrogen peroxide, and oxygen. The equation for the reaction is probably CuO + 6HNO3 = Cu(NO3)2, 3H2O + 4NO2 + O2.3. The only basic nitrate of copper appears to be Cu(NO3)2·3Cu(OH)2. The product obtained by heating the trihydrate to 100° has this composition, and is not Cu(NO3)2·2Cu(OH)2, as stated by Graham.4. Dehydration of copper nitrate does not yield anhydrous copper nitrate, but results in decomposition, with formation of basic copper nitrate, whether the dehydration is performed at ordinary or higher temperatures.5. Copper oxide does not interact with nitric anhydride.6. The only hydrates of copper nitrate appear to be the trihydrate and hexahydrate. The transition temperature is 24·65° (±0·05) corr.7. Concentrated nitric acid dehydrates the hexahydrate, while dilute nitric acid hydrates the trihydrate. It was not found possible to determine the concentration of nitric acid, which would be in equilibrium with both hydrates.

scholarly journals Di-μ-methanolato-κ4O:O-bis[bis(3-methyl-5-phenyl-1H-pyrazole-κN2)(nitrato-κO)copper(II)]

2012 ◽  
Vol 68 (4) ◽  
pp. m503-m503 ◽  
Author(s):  
Xu-Guang Li ◽  
Meng-Meng Gao ◽  
Seik Weng Ng
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Copper Nitrate ◽  
Methanol Solution ◽  
Nitrate Anion ◽  
Nitrate Ion ◽  
Apical Site ◽  
Pyrazole Ligands

Copper nitrate in methanol solution cleaves the N—Cmethanolbond when reacted with 3-methyl-5-phenylpyrazole-1-methanol to yield the centrosymmetric dinuclear title compound, [Cu2(CH3O)2(NO3)2(C10H10N2)4], in which the CuIIatom is linked to a nitrate ion, two methanolate ions and two pyrazole ligands in a distorted square-pyramidal environment. The O atom of the nitrate anion occupies the apical site. The crystal structure features intramolecular N—H...O hydrogen bonds.

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