Among thousands of known metal‐organic frameworks (MOFs), the University of Oslo's MOF (UiO‐66) exhibits unique structure topology, chemical and thermal stability, and intriguing tunable properties, that have gained incredible research interest. This paper summarizes the structural advancement of UiO‐66 and its role in CO2 capture, separation, and transformation into chemicals. The first part of the review summarizes the fast‐growing literature related to the CO2 capture reported by UiO‐66 during the past ten years. The second part provides an overview of various advancements in UiO‐66 membranes in CO2 purification. The third part describes the role of UiO‐66 and its composites as catalysts for CO2 conversion into useful products. Despite many achievements, significant challenges associated with UiO‐66 are addressed, and future perspectives are comprehensively presented to forecast how UiO‐66 might be used further for CO2 management.

The continuous carbon dioxide (CO2) gas emissions associated with fossil fuel production, valorization, and utilization are serious challenges to the global environment. Therefore, several developments of CO2 capture, separation, transportation, storage, and valorization have been explored. Consequently, we documented a comprehensive review of the most advanced strategies adopted in metal‐organic frameworks (MOFs) for CO2 capture and separation. The enhancements in CO2 capture and separation are generally achieved due to the chemistry of MOFs by controlling pore window, pore size, open‐metal sites, acidity, chemical doping, post or pre‐synthetic modifications. The chemistry of defects engineering, breathing in MOFs, functionalization in MOFs, hydrophobicity, and topology are the salient advanced strategies, recently reported in MOFs for CO2 capture and separation. Therefore, this review summarizes MOF materials′ advancement explaining different strategies and their role in the CO2 mitigations. The study also provided useful insights into key areas for further investigations.

A new cross-linked porous polymer was synthesized and its performance in the capture of carbon dioxide from a ternary gas mixture was demonstrated, and properties retained for over 45 cycles. This report represents one of the top performing porous organic materials for carbon capture.

Developing efficient, robust, and highly recyclable catalysts with the ability to separate products conveniently for industrially important hydrogenation reactions is a major challenge. Edges of nanoparticles possessing selective catalytic properties while the completely exposed metal particles are devoid of this attribute is a known fact. Herein, the preparation and evaluation of a Co 3 O 4 /N-Gr/Fe 3 O 4 magnetic heterostructure composed of Co 3 O 4 nanoparticles surrounded by nitrogen-doped graphitic carbon derived from ZIF-67 on an Fe 3 O 4 support is described. Wrapping Co 3 O 4 nanoparticles with porous nitrogen-rich graphitic carbon increases their catalytic selectivity and durability. Co 3 O 4 /N-Gr/Fe 3 O 4 is obtained by pyrolysis of metal−organic frameworks, ZIF-67(Co) with magnetic Fe 3 O 4 nanoparticles under nitrogen. Scanning electron microscopy reveals Fe 3 O 4 as uniform octagonal microcrystals (∼450 nm) and transmission electron microscopy (TEM) shows graphitic carbon layers around the core Co 3 O 4 nanoparticles on Fe 3 O 4 microcrystals. TEM using a high-angle annular dark-field with spherical aberration (Cs) correction shows the core−shell structure of Co 3 O 4 /N-Gr nanocrystals (∼20 nm) with the graphitic carbon layers surrounding the core Co 3 O 4 nanoparticles on Fe 3 O 4 microcrystals. The resulting Co 3 O 4 /N-Gr/Fe 3 O 4 construct produces a stable and reusable catalyst for the selective hydrogenation of structurally diverse N-heteroarenes. Particularly, quinoline was quantitatively hydrogenated to 1,2,3,4-tetrahydroquinoline (py-THQ) at 120 °C under 40 bar of H 2 . The wide applicability of Co 3 O 4 /N-Gr/Fe 3 O 4 was tested for selective hydrogenation of cinnamaldehyde to hydrocinnamaldehyde (HCAL) with >99% selectivity. Also, the tolerance of functional groups in the reduction of nitroarene was evaluated. The benefit of the ability to produce py-THQ was demonstrated by extending the protocol for the synthesis of bioactive molecules, that is, a tubulin polymerization inhibitor with a 94% yield. The robust nature of the Co 3 O 4 /N-Gr/ Fe 3 O 4 construct was demonstrated through multiple cycles of simple separation and reuse.