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The treatment of SDS-SWNTs with the Group 2 metal ions Mg 2+ , Ca 2+ , Sr 2+ , and Ba 2+ causes quenching of the SWNT's fluorescence in the same manner but to a lesser extent (lower Ksv) as they quench SDBS surfacted nanotubes. In contrast, the quenching with the Group 12 metal ions Zn 2+ , Cd 2+...
The adsorption of Acid Red 151 (AR151) from water was determined for kaolin, MnFe2O4 and MnFe2O4/kaolin magnetic nano-composite. MnFe2O4 and MnFe2O4/kaolin were prepared using a simple chemical co-precipitation procedure. The MnFe2O4/kaolin composite was prepared with Mn : Fe : kaolin mass ratios...
The contrasting structure and reactivity of the mono ortho-coordinated aryl- and alkyl-selenium derivatives and 2,6-dibsubstituted aryl- and alkyl-selenium derivatives are described. The 2,6-disubstituted diaryl diselenides with Se$\ctdot$O intramolecular coordination and steric congestion around...