Photocatalyst nanocomposites of ZnO/bentonite clay are synthesized by Solid-state ion exchange method. Ion exchange intercalation process of clays is used to incorporate the catalyst into the basal space of the layered structure of clays. The purpose of this study is to find a new method, which is focused on simplifying and saving time to prepare ZnO-bentonite composite with photocatalyst prope...

In the present study, a new composite catalyst which highly active under visible light was synthesized by immobilizing onto bentonite surface using ZnO materials (ZnO/Bent). For this, simple in situ participant technique used. The samples were characterized SEM, XRD, BET techniques. SEM images possess that particles have nearly spherical structure. Bentonite clay used to increase area of sample...

The present study reports, the synthesis of ZnO-bentonite nanocomposite by the incorporation of ZnO with bentonite clay. The nanocomposite was characterised by XRD and SEM. ZnO-bentonite was effectively used for removal of Methylene Blue (MB). Removal of MB takes place by photocatalytic degradation and adsorption. Photocatalytic degradation of MB occurs by advanced oxidation process. The factor...

Schistosoma mansoni cercariae were removed from clear and turbid water by flocculation with Sudanese bentonite clays, with Moringa oleifera seeds as well as with pure bentonite. The flocculation technique employed corresponds to that used to clarify Nile water in Sudanese villages. Moringa seeds, pure bentonite and one type of bentonite clay were able to reduce the number of cercariae by more t...

The removing zinc cation from aqueous solution by Ca-bentonite and Na-exchanged bentonite was studied. The factors such as the initial concentration of Zn, the liquid-to-solid ratio, pH, adsorption time, stirring speed, coexisting ions, temperature and bentonite particle size were investigated. The results show that the adsorption process of bentonite accorded with the Freundlich isotherm model...

CTMA-bentonite and BTEA-Bentonite prepared by Na-bentonite cation exchanged with cetyltrimethylammonium(CTMA) and benzyltriethylammonium (BTEA). Products were characterized by XRD and IR techniques.The d001 spacing value of CTMA-bentonite and BTEA-bentonite are 7.54Å and 3.50Å larger than that of Na-bentonite at 100% cation exchange capacity, respectively. The IR spectrum showed that the intens...

Toxicity Summary: IDENTIFICATION: Bentonite is a rock formed of highly colloidal and plastic clays composed mainly of montmorillonite and produced in situ devitrification of volcanic ash. It may contain feldspar, cristobalite and crystaline quartz. Major uses of bentonite include binding foundry sand in molds, absorbing grease, oil and animal wastes; palletizing taconite iron ore and improving ...

Rats were offered ad libitum zinc in twice the level of the standard diet (23 mg/kg diet), and bentonite (2% additive) for 28 d, together with traces of zinc chloride (labelled with zinc-65) given intragastrically. Results provided evidence that bentonite increased the body retention of zinc in comparison to the diet without this agent. Furthermore, the addition of bentonite did not influence f...

Rations containing approximately 85% ground high-moisture, ensiled corn were fed to steers in such a way as to produce lactic acid acidosis, and three dietary buffers were evaluated in regard to their effect on ruminal and systemic acidosis. The buffers consisted of (1) 2% sodium bentonite, (2) 1% sodium bentonite plus 1% dolomitic limestone, and (3) 1% sodium bentonite plus 1% potassium bicarb...