Effect of surface modification on thermal expansion of Zr2WP2O12/aromatic polyimides based composites

Simultaneously tuning the luminescent color and realizing an optical temperature sensor by negative thermal expansion in Sc2(WO4)3:Tb/Eu phosphors

“…Recently, upconversion luminescent phosphors with an unusual anti-thermal quenching performance have been reported where lanthanide ions are doped into A 2 (MO 4 ) 3 -type (A = Sc 3+ , Y 3+ , Lu 3+ ; M = Mo 6+ /W 6+ ) materials with negative thermal expansion characteristics, which has attracted extensive attention from researchers. [18][19][20][21][22][23][24] This performance implied the potential to control the thermal quenching behavior of downshifting (DS) luminescent materials by selecting NTE materials and suitable doped-lanthanide ions. For the reported DS luminescent materials with NTE characteristics, the absolute majority of them are single lanthanide ion-doped, such as Sc 2 (MoO 4 ) 3 :Eu 3+ and Lu 2 (MoO 4 ) 3 :Eu 3+ , 25,26 and they also exhibit anti-thermal quenching behavior.…”

Synthesis of colorless polyimides derived from benzimidazole diamines with bis‐amide structures

“…17 To achieve a low CTE, much research has been done to increase the rigidity of the main chain or strengthen the inter-chain interactions, such as adding inorganic nanoparticles filler with low CTE, in situ polymerization to build hydrogen-bond network, and designing of more rigid/liner molecular structure. [18][19][20][21] In various rigid structures, the amide and benzanilide linkage and cyclobutane-1,2,3,4-tetracarboxylic dianhydride(CBDA) are commonly used. [22][23][24] Based on our previous study, 6-amino-2-(2 0 -methyl-4 0 -aminobenzene)-N-phenylbenzimidazol was continued to use to make sure that the PIs had good chemical heat resistance.…”

Selective Co(II) Adsorption Using Hollow ZIF-8 Nanostructures with Embedded Fe3O4 Nanoparticles

“…The migration of 60 Co radionuclides into soil or groundwater poses a significant risk to human health, increasing the potential for leukemia, bone cancer, and other diseases upon accumulation in the body . Extensive research has focused on effectively removing 60 Co radionuclides through adsorption methods, exploring traditional adsorbents such as carbon-based materials, clay minerals, and graphene oxides. − However, there is a need to identify new materials with multiple adsorptive sites, high specific surface area, and simple separation and regeneration processes to enhance the efficiency of radionuclide removal. − …”