In Situ Growth of Ca2+-Based Metal–Organic Framework on CaSiO3/ABS/TPU 3D Skeleton for Methylene Blue Removal

Abstract

The work reports a novel strategy for combining polymers and metal–organic frameworks (MOFs) into composites for adsorption applications. Calcium silicate (CaSiO3) was introduced into acrylonitrile butadiene styrene/thermoplastic polyurethane (ABS/TPU) alloy, and the CaSiO3/ABS/TPU skeleton was fabricated by 3D printing technology. The Ca-MOF was directly loaded on the surface of acetone-etched 3D skeleton by in-situ growth method. The obtained 3D skeleton was characterized and the performance of methylene blue (MB) adsorption was determined. It is clear that Ca-MOF is successfully loaded on the surface of 3D skeleton due to the presence of CaSiO3. The MB adsorption ratios of the solutions with initial concentrations of 50, 100 and 200 mg/L at the equilibrium time (5 h) are 88%, 88% and 80%, respectively, revealing good MB adsorption performance of the 3D skeleton. The MB adsorption ratio remains 70% at six runs of adsorption–desorption experiment, indicating the excellent recovering property of the skeleton. The results show that the prepared CaSiO3/ABS/TPU 3D skeleton is a candidate adsorbent for printing and dyeing effluent treatment.

Thermoplastic polyurethane for three‐dimensional printing applications: A review

“…Three‐dimensionally printed TPU shows wide range of application excluding traditional ones so in Table 6 we summarized all the remaining applications. Methylene blue adsorption by a composite of ABS and TPU with calcium silicate was examined by Zhen Liu et al The findings indicate that 3D skeleton is a potential adsorbent for the treatment of printing and dyeing wastewater 170 . Due to its superior capacity for absorbing shock, TPU material produced using 3D printing could be used to make personal protective equipment 70 .…”

Self-Supported 3D-Printed Lattices Containing MXene/Metal–Organic Framework (MXOF) Composite as an Efficient Adsorbent for Wastewater Treatment

“…The 3D-printing technology, as an effective, low-cost, and versatile technique, overcomes the limitation of the secondary pollution and facilitates the recycling process of adsorbents without any complicated separation procedure. This approach can construct complex structures with tunable and high-quality ordered shapes for different applications. − For instance, Pei et al prepared the ink for 3D printing with a mixture of a Cu-based MOF, sodium alginate, and gelatin to create circular, hexagonal, and square patterns for removing several organic dyes. In another study, Cu-based MOFs were grown in situ on a polylactic acid (PLA) 3D structure to adsorb malachite green dye .…”

“…In another study, Cu-based MOFs were grown in situ on a polylactic acid (PLA) 3D structure to adsorb malachite green dye . Liu et al also manufactured a polymeric 3D-printed skeleton containing Ca-MOFs for adsorptive removal of methylene blue.…”

“…In another study, Cu-based MOFs were grown in situ on a polylactic acid (PLA) 3D structure to adsorb malachite green dye. 22 Liu et al 20 skeleton containing Ca-MOFs for adsorptive removal of methylene blue. The aim of this work is the rational design and fabrication of a highly porous and self-supported 3D-printed lattice structure for the efficient removal of organic pollutants from aqueous solutions.…”

A 3D-printed hierarchical porous architecture of MOF@clay composite for rapid and highly efficient dye scavenging

“…3D printing technology enables the fabrication of adsorbents with complex lattice structures and hierarchical porosity. 30,31 For instance, a polymeric 3D-printed skeleton containing the MXene/MOF (MXOF) composite was manufactured for the adsorptive removal of organic dyes. 32 In another study, Cu-based MOFs were grown in situ on a polylactic acid (PLA) 3D structure for the removal of malachite green dye, where about 70% of the removal efficiency remained after five regeneration cycles.…”