2 research outputs found
A Doped Lanthanide-Based Coordination Polymer Exhibiting High Relative Sensitivity to Ratiometric Luminescent Thermometers at 440 K
Ratiometric
luminescent thermometers with excellent performance
often require the luminescent materials to possess high thermal stability
and relative sensitivity (Sr). However,
such luminescent materials are very rare, especially in physiological
(298–323 K) and high-temperature (>373 K) regions. Here
we
report the synthesis and luminescent property of [Tb0.995Eu0.005(pfbz)2(phen)Cl] (3), which
not only exhibits high Sr in physiological
temperature but also has a Sr up to 7.47%
K–1 at 440 K, the largest Sr at 440 K in known lanthanide-based coordination compound
luminescent materials
Full-Biobased Nanofiber Membranes toward Decontamination of Wastewater Containing Multiple Pollutants
Herein, we developed
a full-biobased nanofiber (NF) membrane for
decontaminating water from multiple pollutants simultaneously by using
electrospun polyÂ(l-lactic acid) (PLA) nanofibers as scaffold
and β-cyclodextrin (β-CD) decorated polydopamine (PDA)
as functional coating. The as-prepared β-CD-PDA@PLA NF membranes
have good hydrophilicity, underwater oleophobicity, and recyclability,
which therefore endow the membrane with effective separation performance
for oil-in-water emulsion. The flux and separation efficiency of the
membranes are higher than 1500 L·m<sup>–2</sup>·h<sup>–1</sup> and 99.5%, respectively. The β-CD-PDA@PLA NF
membranes also exhibited good adsorbability (over 95%) to positively
charged water-soluble organic pollutant during filtration owing to
their negatively charged nature and high specific surface area. The
used membranes, which could be easily recovered by washing with a
small amount of solvent and used for the next filtration cycle, have
very good durability to decontaminate the wastewater containing toluene
emulsion and methylene blue simultaneously for at least 10 cycles