7783-97-3Relevant articles and documents
Hill, A. E.,Simmons, J. P.
, p. 821 - 840 (1909)
Baxter, W. P.
, p. 615 - 621 (1926)
First evidence of a phase transition in a high-pressure metal iodate: Structural and thermal studies of AgIO3 polymorphs
Suffren, Yan,Gautier-Luneau, Isabelle,Darie, Celine,Goujon, Celine,Legendre, Murielle,Leynaud, Olivier
, p. 3526 - 3532 (2013)
A new phase of silver iodate, β-AgIO3, was obtained at 2.7 GPa by heating the α-AgIO3 precursor above 240 °C. β-AgIO3 is the first iodate obtained at high pressure that stabilizes under normal conditions. The crystal structure was determined by X-ray powder diffraction and Rietveld refinement. In comparison to α-AgIO3, which crystallizes in the Pbc21 acentric orthorhombic space group with the lattice parameters a = 7.265(2) A, b = 15.17(4) A, c = 5.786(2) A, and V = 638(2) A3, β-AgIO3 crystallizes in the Pbca centric orthorhombic space group, with the following parameters: a = 6.137(2) A, b = 16.980(4) A, c = 5.827(1) A, and V = 607.3(3) A3. Differential thermal analysis under high pressure (2.7 GPa) and structural studies showed an endothermic transformation at 260°C corresponding to a first-order reconstructive phase transition from α-AgIO3 to β-AgIO3. The thermal behaviors of α-AgIO3 and β-AgIO3 were studied by differential scanning calorimetry at ambient pressure and in situ temperature-dependent X-ray powder diffraction. Copyright
Hierarchical self-assembly of graphene-bridged on AgIO3/BiVO4: An efficient heterogeneous photocatalyst with enhanced photodegradation of organic pollutant under visible light
Si, Yushan,Chen, Yongyang,Fu, Yiwen,Zhang, Xinyu,Zuo, Fenfang,Zhang, Tongtong,Yan, Qishe
, (2020)
A series of hierarchical AgIO3/BiVO4-GO photocatalysts was synthesized using a solvothermal-precipitation method. The composition, structure, morphology, optical and photoelectrochemical performance of as-obtained photocatalysts were systematically characterized by XPS, XRD, TEM, SEM, EDS, PL, UV–Vis DRS, PT, and EIS, respectively. The photocatalytic activity was evaluated by the degradation of tetracycline hydrochloride (TC) and Rhodamine B (RhB) under visible light irradiation. Experimental results exhibited the photocatalytic degradation activity of AgIO3/BiVO4 was significantly improved compared with pure AgIO3 and BiVO4. This may be due to the heterojunction formation of AgIO3 and BiVO4 and the introduction of GO, which accelerates the separation and migration of electron-hole pairs and reduce recombination. The h+ and ?O2? was the key active species in the photocatalytic degradation process according to the trapping experiment. Furthermore, a potential photocatalytic mechanism was predicted based on experimental results.
Erdey, L.,Ba'nyai, E.
, p. 16 - 28 (1958)
Preferential Solvation of Ag(I) Bromate and Iodate in Dimethyl Sulfoxide-Water Mixtures
Janardhanan, Sivasankaran nair,Kalidas, Chatty
, p. 2363 - 2365 (2007/10/02)
The selective solvation of Ag(I) bromate and iodate was studied in dimethyl sulfoxide-water mixtures at 30 deg C by solubility and EMF measurements.The solubility of silver bromate decreases down to XDMSO=0.2 and thereafter increases with addition of dimethyl sulfoxide, the solubility of silver iodate continuously decreasing under the same conditions.The transfer free energy of silver cation decreases while that of halate ions increases with the addition of dimethyl sulfoxide.The solvent transport number, Δ, passes through a maximum around XDMSO=0.5 in both cases.These results were interpreted in terms of a heteroselective solvation of both the salts, the silver ion being preferentially solvated by dimethyl sulfoxide and the halate ions selectively hydrated by water in the mixtures.
