Amorphous metal-organic framework UiO-66-NO2 for removal of oxyanion pollutants: Towards improved performance and effective reusability

Functional UiO-66 for highly selective adsorption of N-nitrosodipropylamine: adsorption performance and mechanisms

“…Referring to other literature, the information shows that most MOF adsorbents do not show sufficient regeneration capacity. 44 The benefits of using functional MOFs only once hardly even breaks through their intrinsic cost. In order to improve the regeneration performance of the UiO-66 series of adsorbent materials, their functionalization studies still need to be carried out.…”

Synthetic and analytical considerations for the preparation of amorphous metal–organic frameworks

“… 123 Interestingly, immersion of crystalline UiO-66-NO 2 in a NaOH solution resulted in a loss of order because of increased linker defects. 207 The complexity surrounding pH control of crystallinity was highlighted further when, upon the incorporation of DES with different pH's for aUiO-66 synthesis, no change in crystallinity was observed. 121 This contrasts with Zr-Tyr, (Tyr = tyrosine), MOFs where basic conditions revealed the formation of amorphous/partially crystalline MOF material.…”

“… 142 An XPS study of both crystalline and amorphous UiO-66-NO 2 revealed that a high proportion of linker defects were produced through a reduction in the number of Zr-acetate bonds. 207 The range of techniques utilised to study both the short-range order and the general level of order within the material is promising, but determining which combination of these are required to make concrete conclusions about an aMOF material is still to be determined.…”