Synthesis and Characterization of Zeolitic Imidazolate Framework-8 (ZIF-8)/Al2O3 Composite

Abstract

Metal-organic framework (MOF) such as ZIF-8 is the tremendous porous material applied in many fields due to high specific surface area and excellent regularity of pores. One technique to improve the physical properties of ZIF-8 with the formation of a composite between a metal oxide and MOF. ZIF-8 and ZIF-8/ 2 3 were successfully synthesized by the solvothermal method with an variation of 19%, 38%, and 76%. The ZIF-8/ 2 3 were characterized by XRD, FTIR, SEM, and 2 Physisorption. The diffractogram shows that the appearing of ZIF-8's peak on 2θ = 7.26; 10.41, 12.66, 16.41, and 17.95°. The morphological of ZIF-8 crystals had a cubic shape. Then the ZIF-8/ 2 3 had different shapes with ZIF-8. Based on the FTIR result, the Zn-N peak appears on 420 −1 , which indicates the bonding between metal and organic ligand for ZIF-8/ 2 3 has an additional spike on 825 −1 due to the vibration of − − .

Bimetallic Metal–Organic Framework Nanoparticles for Monitoring Metabolic Changes in Cardiovascular Disorders

“…The same peaks can be found in all samples at 7.40, 10.43, 12.7, and 18.0°, which correspond to the diffraction planes (011), (002), (112), and (222), respectively, which are consistent with the XRD patterns of MOFs . The data demonstrates that ZIF-8 exhibits great crystallinity and that all samples are in pure phases and are isostructural, indicating that there are sufficient binding proteins to produce co-crystallization, that is, uniform tiny molecules of biofluids . The DLS analysis revealed the particle size distribution of the Zn–Co, Zn–Cu, and Zn–Ni MOFs, with an average size of 442.5 ± 10.96 nm for Zn–Co, 1362 ± 37.72 nm for Zn–Cu, and 1069 ± 29.87 nm for Zn–Ni (Figure a and Table S-1).…”

“…39 The data demonstrates that ZIF-8 exhibits great crystallinity and that all samples are in pure phases and are isostructural, indicating that there are sufficient binding proteins to produce cocrystallization, that is, uniform tiny molecules of biofluids. 40 The DLS analysis revealed the particle size distribution of the Zn−Co, Zn−Cu, and Zn−Ni MOFs, with an average size of 442.5 ± 10.96 nm for Zn−Co, 1362 ± 37.72 nm for Zn−Cu, and 1069 ± 29.87 nm for Zn−Ni (Figure 3a and Table S-1 In complex biosamples, metabolites are selectively trapped and identified via LDI. This is envisioned to be facilitated by the bimetallic MOF-NPs that are extremely accessible for guest molecules.…”

Chemical characteristic of Fly ash and Bottom ash as potential source for synthesis of Aluminosilicate-based materials

“…Coal fly ash particles are generally spherical. However, the particles of coal bottom ash are irregular and range from fine gravel to natural sand [8].…”

“…This is due to the high content of SiO2 and Al2O3 in fly ash and bottom ash [6,7]. Two of the aluminosilicate-based materials that can be synthesized from waste ash are geopolymers and zeolites [8][9][10][11][12]. Both have a basic framework composed of alumina and silica compounds.…”

Synergistic effect of modified pore and heterojunction of MOF-derived α-Fe2O3/ZnO for superior photocatalytic degradation of methylene blue

“…The p-p stacking interaction present between the benzene ring in MB and the imidazole ring. 58,59 However, the difference in adsorption capacity between ZIF-8 and ZnO did not show the signicant result due to the ZnO has a nearly same mesopore with ZIF-8. Calzada et al, reported that the adsorption capacity of ZnO in MB removal of 7 mg g −1 was lower than ZnO in this report due to the lower mesopore.…”