Effect of Copper Sulfate, Copper Sulfide and Sodium Sulfide on Performance and Copper Stores of Pigs

ABSTRACTPoly(3-hexylthiophene)/Titania (P3HT/TiO2) heterojunction has been widely studied in the field of hybrid solar cells. Usually, organic dyes shift the neat TiO2 absorption edge toward the visible range improving the conversion efficiency or/and the TiO2 surface is modified with ligands in order to increase the electron transport. On the other hand, copper sulfide, non-toxic semiconductor, has been included in bulk organic P3HT based solar cell, increasing the photocurrent density of devices. Therefore, we propose the use of copper sulfide in the hybrid TiO2/P3HT heterojunction to determine its effect in the performance of TiO2/P3HT solar cell. Copper sulfide nanocrystals (CuxS) were synthesized at 230 °C, 240 °C and 260 °C and, they were mixed with P3HT in order to form P3HT:CuxS bulk heterojunctions. Scattered grains and irregular morphology in the final topography of the reference device (P3HT/TiO2 heterojunction) were observed by AFM, while a granular morphology and a few pores like craters were observed in the devices containing P3HT:CuxS bulk heterojunctions. Chalcocite phase (Cu2S) was obtained at 230 and 240°C and, digenite (Cu1.8S) phase at 260°C, both copper sulfide phases are very promising for solar cells. Despite this, poor rectifications in the devices were found in the current-voltage curves of the devices containing copper sulfide nanocrystals in contrast to the P3HT/TiO2 cell (device without nanocrystals), it could be due to the current leakage or recombination process in the copper sulfide/TiO2 interface. It suggests future work in order to improve the devices.

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Effect of copper sulfate on growth and odor production of several microorganisms

SIL Proceedings 1922-2010 ◽

10.1080/03680770.2001.11902690 ◽

2002 ◽

Vol 28 (3) ◽

pp. 1425-1428

Author(s):

Arisa Yagi ◽

Takako Usui ◽

Daiki Fujise ◽

Yoko Yamamoto

Keyword(s):

Copper Sulfate ◽

Effect Of Copper ◽

Odor Production

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Effect of Copper Sulfate on Expression of Endogenous L1 Retrotransposons in HepG2 Cells (Hepatocellular Carcinoma)

Biological Trace Element Research ◽

10.1007/s12011-015-0256-0 ◽

2015 ◽

Vol 165 (2) ◽

pp. 131-134 ◽

Cited By ~ 5

Author(s):

Abbas Karimi ◽

Keivan Majidzadeh-A ◽

Zahra Madjd ◽

Abolfazl Akbari ◽

Laleh Habibi ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Copper Sulfate ◽

Hepg2 Cells ◽

Effect Of Copper

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Reduction and Complexation of Copper in a Novel Bioreduction System Developed to Recover Base Metals from Mine Process Waters

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.825.483 ◽

2013 ◽

Vol 825 ◽

pp. 483-486 ◽

Cited By ~ 2

Author(s):

Sabrina Hedrich ◽

Chris du Plessis ◽

Nelson Mora ◽

D. Barrie Johnson

Keyword(s):

Copper Sulfide ◽

Iron Reduction ◽

Elemental Sulfur ◽

Ferric Iron ◽

Sodium Sulfide ◽

Base Metals ◽

Processing Scheme ◽

Step Process ◽

Potential Alternative ◽

Axenic Cultures

An integrated bio-processing scheme was devised and tested in the laboratory for recovering copper, or other base metals, from pregnant leach solutions (PLS) using a two-step process involving both iron-reduction, and sulfate-reduction for H2S generation and sulfide precipitation, as a potential alternative to conventional SX-EW. Reduction of ferric iron in the PLS was achieved using iron-reducingAcidithiobacillusspp. andSulfobacillus thermosulfidooxidansin column reactors containing elemental sulfur as electron donor. Analysis of the column reactor effluents showed not only that most of the ferric iron was reduced to ferrous, but also that all of the copper (II) had been reduced to copper (I), i.e. cuprous copper. This copper (I) appeared to be complexed as it was not oxidized when exposed to ferric iron nor precipitated as a copper-sulfide when exposed to either sodium sulfide or H2S. The data suggested that copper (II) was reduced and the resulting copper (I) complexed, with both reactions probably mediated by sulfur oxy-anions produced indirectly by the bacteria, in the anoxic sulfur column bioreactors. It was also noted that copper (I) produced chemically by reduction of copper (II) by hydroxylamine was more toxic to axenic cultures ofAcidithiobacillusspp. andSb. thermosulfidooxidansthan was the copper (I) in the column effluent liquors.

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