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Nearly monodisperse NaY(MoO 4 ) 2 architectures with various shapes have been selectively prepared on a large scale by a capping agent free hydrothermal process using Y(OH) 3 nanorods as a precursor. The molar ratio of Na 2 MoO 4 /Y(OH) 3 , the volume ratio of water/ethanol in the mixed solvents and temperature have comprehensive and crucial influences on the formation of multi morphologies of NaY(MoO 4 ) 2 . The formation of multi morphologies is explained mainly from the viewpoint of the effective concentration of MoO 4 2À ions. At high temperature, high Na 2 MoO 4 /Y(OH) 3 ratio and high water/ethanol volume ratio, the effective concentration and reactivity of reactants, especially MoO 4 2À ions, are improved, which is beneficial to the growth of 3D NaY(MoO 4 ) 2 architectures. Under UV excitation, without further annealing treatment, NaY(MoO 4 ) 2 :0.05Eu 3+ bipyramid micro samples show strong red emission, corresponding to the characteristic lines of Eu 3+ .

been researched, which indicate that the emission spectra can be tuned from 530 to 575 nm by changing the concentration of Eu 2+ . The CIE chromaticity coordinates of the phosphors were calculated from (0.342, 0.518) to (0.442, 0.479). This indicates a potential for applications in daylight LEDs or warmwhite LEDs.

Organic wastes are potential sources of both energy as well as crop production fertilizers. Correlations and models, involving organic matter characterization, have been previously described by several authors although there is still a lack in knowledge on the potential of simultaneous predictions of methane and organic fertilizer quality to optimize the wastes treatments. A methodology combining chemical accessibility and fluorescence spectroscopy was used to characterize 82 different organic wastes. Characterization data were compared with the biochemical methane potential (BMP), and with the biodegradable organic carbon obtained by soil incubation (C_bio). High correlations values were observed (R of 0.818 for BMP and 0.845 for C_bio). Model coefficients highlighted the differences and similarities between anaerobic and aerobic soil biodegradation, suggesting that anaerobic recalcitrant molecules could enhance soil fertility. This is a first step in the development of a tool for optimising both types of valorisation according to agrosystem needs and constraints.

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