Optimization of the use of mother liquor in the synthesis of HKUST-1 and their performance for removal of chromium (VI) in aqueous solutions

Statistically Optimum HKUST-1 Synthesized by Room Temperature Coordination Modulation Method for the Adsorption of Crystal Violet Dye

“…This kind of TGA The XRD analysis was carried out to investigate the crystallinity of HKUST-1 as patterned in Figure 7a. Here, the XRD spectra show a similar peak pattern as that obtained by the previous studies [8,9,51,57]. In Figure 7a, the XRD spectrum of HKUST-1 synthesized under the optimum condition (blue line) exhibits ( 200), ( 220), ( 222), (400), and (420) planes located at 2θ = 6.5 • , 9.3 • , 11.4 • , 13.2 • , and 14.9 • , respectively, while the other spectra of HKUST-1 have peaks in a similar location.…”

“…In the TGA curve, a long plateau at 110-310 • C provides evidence of the good thermal stability of HKUST-1. Here, the decomposition of HKUST-1 occurred at 310-330 • C as shown by a steep descending curve and left CuO and Cu 2 O materials that were thermally stable at over 330 • C. This kind of TGA and DTG curves is also reported for proving the thermal stability of HKUST-1 in the previous studies [9,21,57,61]. It can be concluded that HKUST-1 synthesized under the optimum condition has the same thermal stability as previously reported.…”

“…This provides an explanation of how HKUST synthesized under the optimum condition had a high adsorption capacity of CV dye. and DTG curves is also reported for proving the thermal stability of HKUST-1 in the previous studies [9,21,57,61]. It can be concluded that HKUST-1 synthesized under the optimum condition has the same thermal stability as previously reported.…”

“…It is very potential for selective adsorption and degradation systems [4][5][6][7]. MOFs have a flexible synthesis process, where different types of metals, ligands, synthesis methods, and operating conditions can generate various morphologies and characteristics of MOFs [8,9]. Hence, there are 99,075 structures of MOFs reported and recorded in the Cambridge Structural Database (CSD) as of August 2020 and will continue to grow along with the high needs in various applications [10].…”

Adsorptive removal of tetracycline and methylene blue from aqueous solution with a water resistance copper-based metal–organic framework

“…The adsorption performances of adsorbents depend on many factors, such as pore size, specific surface area, active sites of adsorbents, interfacial interactions, and surface charge, hydrogen bonding, noncovalent interactions, van der Waals forces, ion exchange, and so on. [38][39][40][41][42][43] As shown in Scheme S1 (ESI †), the MB and TC molecules contain oxygen, nitrogen and benzene rings, which can intermolecularly hydrogen bond with the BTC ligand in the Cu-BTC structure. The p-p conjugation between Cu-BTC and MB and TC can also occur, and these interaction forces can cause MB and TC to be adsorbed onto the surface or within the pore channels of the Cu-BTC structure.…”