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Wang, Ping; Yu, Chengde; Ding, Junjie; Wang, Xuefei; Yu, Huogen, E-mail: wangping0904@whut.edu.cn, E-mail: yuhuogen@whut.edu.cn2018
AbstractAbstract
[en] Highlights: • Basic zinc carbonate as electron cocatalyst was loaded on the surface of Ag-AgCl. • The highest activity of b-Zn/Ag-AgCl was 2.7 times as high as that of Ag-AgCl. • Basic zinc carbonate works as a general cocatalyst to modify Ag-based compounds. • Basic zinc carbonate transfers electrons and inhibits the formation of metallic Ag. Cocatalyst modification is a promising approach for the improved degradation performance of photocatalytic materials owing to rapid charge transfer and interfacial catalytic process. In this work, basic zinc carbonate as a novel cocatalyst was successfully loaded on the surface of Ag-AgCl by a simple impregnation method (the resultant basic zinc carbonate-modified Ag-AgCl was referred as b-Zn/Ag-AgCl). Photocatalytic degradation results suggested that all the b-Zn/Ag-AgCl samples exhibited the enhanced photocatalytic activity, and the highest rate constant of b-Zn/Ag-AgCl was 2.7 times as high as that of the unmodified Ag-AgCl. Importantly, the basic zinc carbonate could work as a general cocatalyst to enhance the photocatalytic activity of other Ag-based photocatalysts (Ag-AgBr, Ag-AgI, Ag-Ag3PO4, and Ag-Ag2CO3) besides Ag-AgCl. Therefore, it is suggested that basic zinc carbonate functions as an efficient electron cocatalyst to quickly transfer electrons and inhibit the formation of metallic Ag for the promoted photocatalytic performance and stability of Ag-based compounds. This present compound is one of the available and promising cocatalysts for Ag-based photocatalysts.
Primary Subject
Source
S0925838818314658; Available from http://dx.doi.org/10.1016/j.jallcom.2018.04.163; Copyright (c) 2018 Elsevier B.V. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
BROMIDES, BROMINE COMPOUNDS, CARBON COMPOUNDS, CARBONATES, CATALYSIS, CHLORIDES, CHLORINE COMPOUNDS, ELEMENTS, HALIDES, HALOGEN COMPOUNDS, IODIDES, IODINE COMPOUNDS, KINETICS, METALS, OXYGEN COMPOUNDS, PHOSPHATES, PHOSPHORUS COMPOUNDS, SILVER COMPOUNDS, SILVER HALIDES, TRANSITION ELEMENT COMPOUNDS, TRANSITION ELEMENTS, ZINC COMPOUNDS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Short communication
Original Title
Structure primaire des verres superconducteurs ioniques AgPO3-AgX par diffraction des neutrons; AgPO3-AgI; AgPO3-AgBr; AgPO3-AgCl
Primary Subject
Source
European workshop on glasses and gels; Montpellier (France); 29-31 Jan 1992; Supplement to J. Phys., III v. 2(10).
Record Type
Journal Article
Literature Type
Conference
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The electrical conductivity, σ, and thermopower, S, of molten (AgX)1-c(Ag2Se)c mixtures (X = Br, I) have been measured as a function of temperature. The conductivity of the mixture is observed to decrease rapidly on the addition of AgX to Ag2Se and reaches a minimum on the AgX side. The thermopower on the Ag2Se side decreases gradually as the concentration of AgX increases until c = ∼0.4 at which point there is rapid change to large positive thermopowers. The value of S (+325 μV K-1 (AgBr), +420 μV K-1 (AgI)) on the AgX rich side decreases rapidly on addition of Ag2Se with the result that a minimum value of S (∼-125 μV K-1) is observed at the composition c = ∼0.4 in both mixtures. A discussion of these results is presented in terms of the change from predominantly electronic transport in liquid Ag2Se to the predominantly ionic transport in AgX. The increasing importance of the contribution of the inhomogeneous thermopower to the total thermopower of the salt rich compositions is also discussed. The decrease in the electronic conductivity with composition for c≥0.6 is analysed in terms of the Kubo-Greenwood equations. (author)
Source
Country of input: International Atomic Energy Agency (IAEA); Refs; This record replaces 31045990
Record Type
Journal Article
Journal
Journal of Physics. Condensed Matter (Online); ISSN 1361-648X;
; v. 12(7); p. 1297-1314

Country of publication
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Guazzoni, P.; Laverlochere, M.; Heilmann, C.; Jung, M.; Francois, H.
Strasbourg-1 Univ., 67 (France). Centre de Recherches Nucleaires1982
Strasbourg-1 Univ., 67 (France). Centre de Recherches Nucleaires1982
AbstractAbstract
[en] The 24 s and 2.4 mn short halft-life Ag110 and Ag108 isotopes were used to determine the quantity of silver remaining in developed nuclear emulsions after exposure to various neutron and gamma radiations. The test carried out should lead to the development and construction of automatic measurement equipment
[fr]
On a utilise les periodes courtes de 24 s et 2,4 mn des isotopes Ag110 et Ag108 pour la determination de la quantite d'argent restant dans les emulsions nucleaires developpees apres avoir ete exposees a differents rayonnements neutron et gamma. Les tests effectues ici devraient aboutir a l'elaboration et a la construction d'un appareil de mesure automatiqueOriginal Title
Etude de la possibilite d'utiliser les periodes courtes de l'argent pour le dosage de celui-ci dans des emulsions nucleaires
Primary Subject
Secondary Subject
Source
1982; 8 p; CONTRACT SADVI-EDF-6-01-1981
Record Type
Report
Report Number
Country of publication
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, CHEMICAL ANALYSIS, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, METALS, MINUTES LIVING RADIOISOTOPES, NUCLEI, ODD-ODD NUCLEI, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, SILVER ISOTOPES, TRANSITION ELEMENTS, YEARS LIVING RADIOISOTOPES
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INIS VolumeINIS Volume
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AbstractAbstract
[en] AgPO3-AgX glasses present a prepeak in the 0.5-0.9 A-1 Q-range. Using isotopic substitution in 0.75 AgPO3-0.25 AgCl(35Cl, 37Cl, natural Cl and 35Cl-37Cl) provokes a dramatic variation in the prepeak intensity, which is strong with 37Cl and disappears for 35Cl. The intensity of the prepeak is well correlated to the contrast term (ρAgPO3-ρAgx)2 corresponding to the square of the relative neutron scattering length densities. As in colloidal systems, this peak can be associated with an intermediate structure of particles lying inside a continuous host. The interparticle distance (comprised between 8 and 10 A) may be analysed in two models; (i) 'AgX' microdomains repeated in the AgPO3 matrix, or (ii) '(PO3)∞' chain microdomains repeating inside a connective tissue made essentially of disordered AgI. The latter model could be more appropriate to describe other physical properties such as ionic conductivity. (author). 18 refs.; 5 figs.; 3 tabs
Record Type
Journal Article
Journal
Country of publication
BROMIDES, BROMINE COMPOUNDS, CHLORIDES, CHLORINE COMPOUNDS, COHERENT SCATTERING, DIFFRACTION, ELECTRIC CONDUCTIVITY, ELECTRICAL PROPERTIES, HALIDES, HALOGEN COMPOUNDS, IODIDES, IODINE COMPOUNDS, OXYGEN COMPOUNDS, PHASE TRANSFORMATIONS, PHOSPHATES, PHOSPHORUS COMPOUNDS, PHYSICAL PROPERTIES, SCATTERING, SILVER COMPOUNDS, TRANSITION ELEMENT COMPOUNDS
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INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The lower range in Q (from 0.2 to 2 A-1) of interference functions S(Q) is very sensitive to the nature of the X nucleus and to the concentration of AgX doping salt. In particular, the progressive enrichment in 37Cl isotope in 35Cl-37Cl mixtures gives rise to an increase of a prepeak located at Q ∝ 0.88 A-1 for the content 0.75 AgPO3-0.25 AgCl. A very detailed experiment (at the LLB) has been done with five AgI concentrations. This prepeak has been assigned to (111) reflexion in a cfc network in which the diffusing objects are small aggregates of AgI defined by a radius R. The linear variation of the interplanar d distance (2π/Q) versus the volumic fraction in AgI implies necessarily that the diffracting objects are bigger and bigger when AgI content increases. Therefore, one may consider a medium ordering structure of nanoaggregates of AgI embedded inside the phosphate matrix. (orig.)
Original Title
Modelisation de l'ordre a moyenne distance dans les verres superconducteurs ioniques AgPO3-AgX par diffraction de neutrons; AgPO3-AgCl; AgPO3-AgI; AgPO3-AgBr
Primary Subject
Source
European workshop on glasses and gels; Montpellier (France); 29-31 Jan 1992; Supplement to J. Phys., III v. 2(10).
Record Type
Journal Article
Literature Type
Conference
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Tracer 110mAg was used to investigate the speciation of silver in natural waters, which may contain chloride, sulfide or humate ions. Silver chloride or oxide is readily absorbed from waters by many materials, and some may be photochemically reduced to metallic silver. Absorbed silver, silver chloride and silver sulfide may be distinguished by their desorption behaviour. Humates form complexes with silver chloride, silver sulfide and with the silver cation, which can be separated from smaller species by gel permeation chromatography. (author)
Primary Subject
Source
15 refs.; 2 figs.
Record Type
Journal Article
Journal
Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731;
; CODEN JRNCD; v. 106(4); p. 213-221

Country of publication
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CHALCOGENIDES, CHEMICAL REACTIONS, CHLORIDES, CHLORINE COMPOUNDS, CHROMATOGRAPHY, COMPLEXES, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, HALIDES, HALOGEN COMPOUNDS, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPE APPLICATIONS, ISOTOPES, METALS, NUCLEI, ODD-ODD NUCLEI, ORGANIC ACIDS, ORGANIC COMPOUNDS, OXIDES, OXYGEN COMPOUNDS, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, SEPARATION PROCESSES, SILVER COMPOUNDS, SILVER ISOTOPES, SULFIDES, SULFUR COMPOUNDS, TRANSITION ELEMENT COMPLEXES, TRANSITION ELEMENT COMPOUNDS, TRANSITION ELEMENTS, WATER TREATMENT
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Abdurakhmanov, A.Kh.; Sokolov, E.S.; Solojenkin, P.M., E-mail: solozhenkin@mail.ru
Conference 'Anniversary scientific conference dedicated to 95-years from date of birth of academician of Academy of Sciences of the Republic of Tajikistan V.I. Nikitin' Proceedings1997
Conference 'Anniversary scientific conference dedicated to 95-years from date of birth of academician of Academy of Sciences of the Republic of Tajikistan V.I. Nikitin' Proceedings1997
AbstractAbstract
[en] The collargol was synthesized. The technology of collargol obtaining was elaborated. As initial material were used casein and silver nitrate. For each operation of collargol obtaining the optimal conditions were determined.
Original Title
Soedinenie serebra s kazeinom
Primary Subject
Source
V.I. Nikitin Institute of Chemistry, Academy of Sciences of the Republic of Tajikistan, Dushanbe (Tajikistan); [41 p.]; Jun 1997; p. 23; Conference on Anniversary scientific conference dedicated to 95-years from date of birth of academician of Academy of Sciences of the Republic of Tajikistan V.I. Nikitin; Dushanbe (Tajikistan); 22 Apr 1997; Also available from the library of V.I. Nikitin Institute of Chemistry, Academy of Sciences of the Republic of Tajikistan
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
CHALCOGENIDES, CHEMICAL REACTIONS, DECOMPOSITION, ELEMENTS, LYSIS, METALS, NITRATES, NITROGEN COMPOUNDS, ORGANIC COMPOUNDS, ORGANIC PHOSPHORUS COMPOUNDS, OXIDES, OXYGEN COMPOUNDS, PROTEINS, SEPARATION PROCESSES, SILVER COMPOUNDS, SOLVOLYSIS, SYNTHESIS, TRANSITION ELEMENT COMPOUNDS, TRANSITION ELEMENTS
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Related RecordRelated Record
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Mandal, M.; Basu, S., E-mail: basu_sukalyan@yahoo.co.in2009
AbstractAbstract
[en] A radiochemical displacement method for the determination of small amounts of mercury has been developed. The method involves the displacement of spiked (110mAg) silver from its dithizonate complex in chloroform. The effects of various ions on the extent of displacement are reported. By this process, ∼80 μg of Hg(II) can be determined. The results of this method are highly reproducible
Primary Subject
Source
S0969-8043(08)00490-9; Available from http://dx.doi.org/10.1016/j.apradiso.2008.06.046; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CHEMISTRY, CHLORINATED ALIPHATIC HYDROCARBONS, COMPLEXES, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, HALOGENATED ALIPHATIC HYDROCARBONS, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, METALS, NUCLEI, ODD-ODD NUCLEI, ORGANIC CHLORINE COMPOUNDS, ORGANIC COMPOUNDS, ORGANIC HALOGEN COMPOUNDS, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, SEPARATION PROCESSES, SILVER ISOTOPES, TRANSITION ELEMENT COMPLEXES, TRANSITION ELEMENTS
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Arzigian, J.S.
Illinois Univ., Urbana (USA). Dept. of Physics1980
Illinois Univ., Urbana (USA). Dept. of Physics1980
AbstractAbstract
[en] The diffusion coefficient of silver in RbAg4I5 was measured in both superionic phases using radiotracer Ag-110m and serial sectioning with a low temperature sectioning apparatus. The activation energies for diffusion in alpha-RbAg4I5 and beta-RbAg4I5, respectively, are 0.11 +- 0.01 eV and 0.20 +- 0.04 eV. An isotope effect for diffusion was also measured in both superionic phases. Ag-105 and Ag-110m radioisotopes were used with gamma spectroscopy and energy discrimination. The effect is small, with no significant temperature variation, with the value at 3330K being 0.12 +- 0.01. The second-order phase transition at 2080K has a small effect, if any, on the magnitude of the effect. The data suggest that a highly cooperative transport mechanism is responsible for the unusually high values of both the conductivity and diffusion coefficient. Although it is not possible to deduce the particular mechanism involved, theories inolving ionic polarons, or cooperative motion, such as crowdions or solitons, seem consistent with the observed results
Original Title
RbAg4I5
Primary Subject
Source
1980; 93 p; Available from NTIS., PC A05/MF A01
Record Type
Report
Report Number
Country of publication
ALKALI METAL COMPOUNDS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, DAYS LIVING RADIOISOTOPES, ELECTRIC CONDUCTIVITY, ELECTRICAL PROPERTIES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, HALIDES, HALOGEN COMPOUNDS, INTERMEDIATE MASS NUCLEI, IODIDES, IODINE COMPOUNDS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, METALS, NUCLEI, ODD-EVEN NUCLEI, ODD-ODD NUCLEI, PHYSICAL PROPERTIES, RADIOISOTOPES, RUBIDIUM COMPOUNDS, SECONDS LIVING RADIOISOTOPES, SILVER COMPOUNDS, SILVER ISOTOPES, TRANSITION ELEMENT COMPOUNDS, TRANSITION ELEMENTS
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