2.3. Synthesis of the metal-organic framework HKUST-1
0.84 gr of BTC ligand and 1.75 gr of copper (Ⅱ) nitrate in 50 ml of ethanol for 3 h under agitated reflux conditions, which formed a blue solid precipitate and then placed the resulting solid precipitate at ambient temperature for 48 h. It was then separated by centrifugation and washed with water and ethanol and dried the precipitate using the oven at 100 °C for 12 h (Fig 2) [20].
Fig 2: Schematic of Synthesis of the metal-organic framework HKUST-1