Hierarchical Pd/UiO-66-NH2-SiO2 nanofibrous catalytic membrane for highly efficient removal of p-nitrophenol

Ratiometric Sensing for Ultratrace Tetracycline Using Electrochemically Active Metal–Organic Frameworks as Response Signals

“…40,41 The presence of the stretching vibration peak of N−H (3443 cm −1 ) indicated the amino group at the surface of NH 2 -UiO-66. 35 In addition, the binding energy peaks of O 1s, N 1s, C 1s, and Zr 3d was observed in the XPS spectrum (Figure 2E), indicating that NH 2 -UiO-66 crystals were composed of organic elements C, N, O, and metal element Zr. Also, the respective HRXPS spectra are shown in Figure 2Fa−d.…”

“…Nevertheless, the stretching vibration peak of N−H (3400 cm −1 ) was not found in the FT-IR spectrum of MOF-808, but it appeared in the FT-IR spectrum of Mo@MOF-808. 35 The results suggested the presence of the amino group (−NH 2 ) on the surface of Mo@MOF-808. Furthermore, there were the binding energy peaks of O 1s, C 1s, Zr 3d, and Mo 3d in the XPS spectrum of Mo@MOF-808 (Figure 1E).…”

A Pd-anchored poly(vinyl chloride-co-maleic acid monoamide)/poly(vinyl chloride) ultrafiltration membrane for the efficient degradation of 4-nitrophenol

“…3 The common metal catalysts are noble and transition metals including Cu, 2 Ag, 4,6 Au, Ni, 7 Co, 8 Pt and Pd. 9,10 Ma et al 2 developed single-atom Cu( i ) catalysts anchored on a thiol-doped reactive membrane for water purification. Derami et al 11 reported that a palladium nanoparticle-decorated mesoporous polydopamine/bacterial nanocellulose membrane could effectively remove dyes and various contaminants with different charges and chemical structures.…”

ZIF-Derived Co/Zn Bimetallic Catalytic Membrane with Abundant CNTs for Highly Efficient Reduction of p-Nitrophenol

“…On one hand, the catalytic membranes avoid the separation of the powdered catalysts from the reaction system, decreasing the cost of investment and making the production process simple. , On the other hand, continuous production process can be easily achieved in the catalytic membrane reactors, increasing the capacity of the reactors and reducing the discharge of pollutants. , Moreover, the reactants can be forced to pass through the catalytic membranes, eliminating the influence of the mass-transfer due to pore diffusion, thereby improving the catalytic performance . For example, Zhu et al applied UiO-66-NH 2 to modify the SiO 2 nanofibrous membrane and then loaded Pd NPs to achieve a catalytic membrane . The modification with UiO-66-NH 2 increased the surface area and Pd content, thereby improving the catalytic performance for the p -nitrophenol hydrogenation .…”

“…For example, Zhu et al applied UiO-66-NH 2 to modify the SiO 2 nanofibrous membrane and then loaded Pd NPs to achieve a catalytic membrane . The modification with UiO-66-NH 2 increased the surface area and Pd content, thereby improving the catalytic performance for the p -nitrophenol hydrogenation . Bai et al developed a novel Cu-based catalytic membrane for the efficient reduction of PNP to PAP in a continuous flow-through system .…”