Author(s): Bicalho HA; Copeman C; Barbosa HP; Donnarumma PR; Davis Z; Quezada-Novoa V; Velazquez-Garcia JJ; Liu N; Hemmer E; Howarth AJ;

In this work, nine new rare-earth metal-organic frameworks (RE-MOFs, where RE = Lu(III), Yb(III), Tm(III), Er(III), Ho(III), Dy(III), Tb(III), Gd(III), and Eu(III)) isostructural to Zr-MOF-808 are synthesized, characterized, and studied regarding their photophysical properties. Materials with hig ...

Article GUID: 39105655

Author(s): Richezzi M; Donnarumma PR; Copeman C; Howarth AJ;

RE-UiO-66 analogues are synthesized using RE acetates as precursors for the first time. These MOFs are fully characterized and the influence of the precursor on the materials obtained is studied. Additionally, the influence of water on the yield of the syntheses and the quality of the materials is explored.

Article GUID: 38646995

Author(s): Quezada-Novoa V; Titi HM; Villanueva FY; Wilson MWB; Howarth AJ;

The tetratopic linker, 1,3,6,8-tetrakis(p-benzoic acid)pyrene (H4 TBAPy) along with rare-earth (RE) ions is used for the synthesis of 9 isostructures of a metal-organic framework (MOF) with shp topology, named RE-CU-10 (RE = Y(III), Gd(III), Tb(III), Dy(III), Ho(III), Er(III), Tm(III), Yb(III), and Lu(III)). The synthesis of each RE-CU-10 analogue require ...

Article GUID: 37116124

Author(s): Copeman C; Bicalho HA; Terban MW; Troya D; Etter M; Frattini PL; Wells DM; Howarth AJ;

A Zr6-based metal-organic framework (MOF), MOF-808, is investigated for the adsorptive removal of IO3- from aqueous solutions, due to its high surface area and abundance of open metal sites. The uptake kinetics, adsorption capacity and binding mode are studied, showing a maximum uptake capacity of 233 mg g-1, the highest reported by any material.

Article GUID: 36753325

Author(s): Bicalho HA; Saraci F; Velazquez-Garcia JJ; Titi HM; Howarth AJ;

Y-CU-45, an analogue of Zr-MOF-808, is synthesized for the first time. Several reaction conditions are tested demonstrating that two fluorinated modulators are required for a reproducible synthesis yielding high quality material. Y-CU-45 shows high crystallinity and surface area, shining light on the potential for rare-earth cluster-based MOFs with open m ...

Article GUID: 36065793

Author(s): Lennox CB; Do JL; Crew JG; Arhangelskis M; Titi HM; Howarth AJ; Farha OK; Frišcic T;

Mechanochemistry enables rapid access to boron imidazolate frameworks (BIFs), including ultralight materials based on Li and Cu(i) nodes, as well as new, previously unexplored systems based on Ag(i) nodes. Compared to solution methods, mechanochemistry is faster, provides materials with improved porosity, and replaces harsh reactants (e.g. n-butylithium) ...

Article GUID: 34881001

Author(s): Bicalho HA; Donnarumma PR; Quezada-Novoa V; Titi HM; Howarth AJ;

Postsynthetic modification of metal-organic frameworks (MOFs) is an important strategy for accessing MOF analogues that cannot be easily synthesized de novo. In this work, the rare-earth (RE) cluster-based MOF Y-CU-10 with shp topology was modified through transmetalation using a series of RE ions, including La(III), Nd(III), Eu(III), Tb(III), Er(III), Tm ...

Article GUID: 34314164

Author(s): Titi HM; Do JL; Howarth AJ; Nagapudi K; Frišcic T;

We present a rapid and readily scalable methodology for the mechanosynthesis of diverse metal-organic frameworks (MOFs) in the absence of milling media typically required for other types of mechanochemical syntheses. We demonstrate the use of liquid-assisted resonant acoustic mixing (LA-RAM) methodology for the synthesis of three- and two-dimensional MOFs ...

Article GUID: 34094134

Author(s): Donnarumma PR; Frojmovic S; Marino P; Bicalho HA; Titi HM; Howarth AJ;

Rare-earth (RE) analogues of UiO-66 with non-functionalised 1,4-benzenedicarboxylate linkers are synthesised for the first time, and a series of synthetic approaches is provided to troubleshoot the synthesis. RE-UiO-66 analogues are fully characterised, and demonstrate a high degree of crystallinity, high surface area and thermal stability, consistent wit ...

Article GUID: 34027524

Author(s): Zhang X; Wasson MC; Shayan M; Berdichevsky EK; Ricardo-Noordberg J; Singh Z; Papazyan EK; Castro AJ; Marino P; Ajoyan Z; Chen Z; Islamoglu T; Howarth AJ; Liu Y; Majewski MB; Katz MJ; Mondloch JE; Farha OK;

Porphyrins are important molecules widely found in nature in the form of enzyme active sites and visible light absorption units. Recent interest in using these functional molecules as building blocks for the construction of metal-organic frameworks (MOFs) have rapidly increased due to the ease in ...

Article GUID: 33678810

Author(s): Bicalho HA, Rios RDF, Binatti I, Ardisson JD, Howarth AJ, Lago RM, Teixeira APC

In this work, the potential to use an iron mining waste (IW), rich in a-Fe2O3 and a-FeOOH, for the development of composites based on graphitic carbon nitride (CN) is demonstrated. These materials were synthesized through a simple thermal treatment at 550?°C of a mixture containing melamine and different IW mass percentages, giving rise to the catalysts x ...

Article GUID: 32947712