CNT functionalized ZIF-8 impregnated poly(vinylidene fluoride-co-hexafluoropropylene) mixed matrix membranes for antibiotics removal from pharmaceutical industry wastewater by vacuum membrane distillation

Hierarchical Amine-Functionalized ZIF-8 Mixed-Matrix Membranes with an Engineered Interface and Transport Pathway for Efficient Gas Separation

“…Figure a shows the FT-IR spectra of the organic ligands (2-aminobenzimidazole and 2-metyhlimidazole), metal salt (zinc acetate dihydrate), and hierarchical ZIF-8-NH 2 nanoparticles. The FT-IR spectra for hierarchical ZIF-8-NH 2 nanoparticles show noticeable peaks at 760, 995, and 1146 cm –1 corresponding to the C–H bending, C–N bending, and aromatic C–N stretching modes, respectively. In addition, the noticeably sharp absorption band at 420 cm –1 corresponds to the Zn–N bond, indicating the formation of the ZIF-8 framework based on the interaction between the zinc ion and nitrogen atom of the imidazole-based organic ligand. , Furthermore, the weak peak appears at 918 corresponding to the N–H bending vibration mode resulting from the 2- aminobenzimidazole moieties …”

“…In addition, the noticeably sharp absorption band at 420 cm −1 corresponds to the Zn−N bond, indicating the formation of the ZIF-8 framework based on the interaction between the zinc ion and nitrogen atom of the imidazole-based organic ligand. 42,43 Furthermore, the weak peak appears at 918 corresponding to the N−H bending vibration mode resulting from the 2aminobenzimidazole moieties. 45 Figure 1b presents the 1 H NMR spectra obtained for the hierarchical ZIF-8-NH 2 nanoparticles dissolved in deuterated methanol with the addition of a small amount of sulfuric acid to decompose the framework.…”

Recent Advances on Membranes for Water Purification Based on Carbon Nanomaterials

“…Results are known for the modification of substrates with carbon nanotubes (CNTs), polydopamine (PDA), polyethyleneimine (PEI), plasma treatment, etc. Possible membranes using CNT-based composites include CNT functionalized ZIF-8-impregnated poly(vinylidene fluoride-co-hexafluoropropylene) [ 103 ], and CNT@MOF5-incorporated poly(vinylidene fluoride-hexafluoropropylene) [ 104 ], etc.…”

Flow-through heterogeneous electro-Fenton based on Co-CNT/Ti3C2TX membrane for improved tetracycline removal in wide pH ranges

“…9,10 Refractory organic pollutants (such as dyes, antibiotics, and pesticides) easily enter the water environment; thus, it is urgent to study an efficient technology to remove these pollutants from the water environment. [11][12][13] Electro-Fenton (EF) is a kind of advanced oxidation process (AOPs), which is often used to degrade refractory organic pollutants. 14 EF technology is to generate H 2 O 2 in situ by two-electron redox on the cathode, which can react with Fe 2+ to generate hydroxyl radical (˙OH) with strong oxidizing properties.…”

“…9,10 Refractory organic pollutants (such as dyes, antibiotics, and pesticides) easily enter the water environment; thus, it is urgent to study an efficient technology to remove these pollutants from the water environment. 11–13…”