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Fig. 1 | Nanoscale Research Letters

Fig. 1

From: Sulfate Exchange of the Nitrate-Type Layered Hydroxide Nanosheets of Ln2(OH)5NO3·nH2O for Better Dispersed and Multi-color Luminescent Ln2O3 Nanophosphors (Ln = Y0.98RE0.02, RE = Pr, Sm, Eu, Tb, Dy, Ho, Er, and Tm)

Fig. 1

Powder XRD patterns and FT-IR spectra of the products and the 220 spacing (d 220) of the SO4 2−-L(Y0.98RE0.02)H. a Powder XRD patterns and b FT-IR spectra of the NO3 −-L(Y0.98Eu0.02)H and SO4 2−-L(Y0.98Eu0.02)H samples. Part c displays XRD patterns of the rest SO4 2−-L(Y0.98RE0.02)Hs synthesized in this work, and part d is the 220 spacing (d 220) of the SO4 2−-L(Y0.98RE0.02)H, as a function of the ionic radius of the RE3+ dopant (taken for CN = 8)

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