Co-intercalation of Acid Red-27/sodium dodecyl sulfate in a Ce-containing Ni-Al-layered double hydroxide matrix and characterization of its luminescent properties

Add time:09/02/2019    Source:sciencedirect.com

The present study has for the first time produced Ce-containing NiAl-layered double hydroxide (Ce-containing NiAl-LDH), in which nitrate ion has been used as the charge balancing anion in the interlayer space. The suggested protocol has been conducted under hydrothermal/co-precipitation in the presence of trimethylamine and in the absence of nitrogen atmosphere. Besides, in Ce-containing NiAl-LDH gallery, the ion-exchange method has been used for co-intercalation of the luminescent dye acid red–27 (AR-27) anions and the surfactant sodium dodecyl sulfate (SDS) with different molar ratios. Consequently, organic-inorganic hybrids have been formed. Powder X-ray diffraction (PXRD), elemental analysis (CHNs), energy-dispersive X-ray spectroscopy (EDAX), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM) were used to characterize the produced LDH and hybrids. In Ce-containing NiAl-LDH, host–guest interactions were seen between LDH host layers and interlayer guest anions. Using photoluminescence spectroscopy (PL), it was observed that the emission bands of co–intercalated LDHs are affected by different molar ratios between AR-27 and SDS anions. These co-intercalated LDHs can serve as a type of promising organic-inorganic luminescent material.

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