A detailed nondestructive analytical method for quantitative food analysis was established by using a selffabricated NIR-LED light source combined with Mg 3 Ga 2 GeO 8 (MGGO) phosphor and a blue LED chip in one package, which can be integrated into smartphones. The phosphor of MGGO:Cr 3+ exhibits ultra-broadband NIR emission in the range of 650−1200 nm, which matches well with the overtones of molecular vibrations (e.g., O−H, C−H, and N−H) presented in food composition. The detailed crystal structure of MGGO was investigated by powder XRD Rietveld refinements, HRTEM images, and the corresponding SAED. Luminescence properties based on different Cr 3+ ions positions were investigated according to Gaussian peak fitting. Owing to the NIR response to organic elements, the working curves between absorbance and water content as well as sugar degree of pears and bananas were plotted. Then the reliability and veracity of the nondestructive analytical method were evaluated (R 2 = 0.9988). All the results suggest that the ultra-broadband NIR emission of MGGO:Cr 3+ phosphor has potential application as light sources integrated into smartphones for nondestructive food analysis.

We have performed ionothermal reactions between Zn(NO3)2 and H3BTC in 1-alkyl-3-methylimidazolium bromide ionic liquids with the alkyl group varying from ethyl to amyl. Six 3-D metal-organic frameworks (MOFs), including two isomeric compounds [Zn3(BTC)2(H2O)2] x 2H2O (1 and 2) (H3BTC = 1,3,5-benzenetricarboxylate acid), [EMI][Zn(BTC)] (3) (E = ethyl, MI = 3-methylimidazolium), [PMI][Zn(BTC)](4) (P = propyl), [BMI]2[Zn4(BTC)3(OH)(H2O)3] (5) (B = butyl), and [AMI][Zn2(BTC)(OH)Br] (6) (A = amyl), have been synthesized and structurally characterized. Compounds 1 and 2 are isomeric compounds, in which the coordination modes of Zn atoms and the BTC3- ligands are considerably different. Compounds 3-6 crystallize with the corresponding ionic liquid cations incorporated in the frameworks. Their crystal structures show various features including various coordination geometries of Zn2+ and various bridging modes of the BTC3- ligands. The incorporated cations appear to have strong interactions with the frameworks.

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It was found that Mo-doped Ni2P hollow nanostructures display excellent hydrogen evolution reaction and oxygen evolution reaction performance.