Layered double hydroxides: Scale production and application in soil remediation as super-stable mineralizer

Recent advances in the detection and removal of heavy metal ions using functionalized layered double hydroxides: a review

“…[13][14][15][16] Recently, layered double hydroxides (LDHs) with large specific surface area and tunable composition/structure have shown great potential in designing effective heavy metal detectors and adsorbents. [17][18][19][20][21] Their easy preparation, low-cost, and exchangeable interlayer anions make LDHs attractive in removing heavy metal ions in comparison to other materials. 22,23 For example, Li et al reported the selective and electrochemical detection of Pb 2+ with Fe/Mg/Ni ternary LDHs.…”

Scalable Synthesis of Amine-Grafted Ultrafine Layered Double Hydroxide Nanosheets with Improved Carbon Dioxide Capture Capacity from Air

“…In this system, LDHs undergo separate nucleation and aging steps in a very short time, forming small crystallites with a narrow range of diameters in the solution. This process allows the annual production of LDHs in kilotons using commercialized facilities . LDH nanosheets can normally be exfoliated under aqueous conditions either by applying an ammonium hydroxide solution as the base or by adding formamide in a colloid mill reactor.…”

“…This process allows the annual production of LDHs in kilotons using commercialized facilities. 14 LDH nanosheets can normally be exfoliated under aqueous conditions either by applying an ammonium hydroxide solution as the base 15 or by adding formamide 16 in a colloid mill reactor. However, the exfoliated LDH nanosheets would stack together after drying because of the formation of strong hydrogen bonds between the surface hydroxyl groups and hydrophilic anions/water molecules.…”

Multiple Anchor Sites of CaFe-LDH Enhanced the Capture Capacity to Cadmium, Arsenite, and Lead Simultaneously in Contaminated Water/Soil: Scalable Synthesis, Mechanism, and Validation

“…Considering its simplicity, efficiency, and wide adaptability, adsorption is an effective approach to treat environmental pollution. , For example, numerous adsorbents have been exploited and investigated for their ability to bind heavy metals from contaminated water. − In the area of soil remediation, in situ stabilization technology has been extensively accepted for the remediation of heavy metal-contaminated soil. , As a class of in situ remediation amendments, adsorbents can effectively reduce the bioavailability of heavy metals through surface sorption and/or chemical precipitation, minimizing the transfer of heavy metals from soil to plants and ensuring food safety with cost-effective remediation. − However, despite these advances, these adsorbents also have their pitfalls, as they are very complex and cannot be easily and cost-effectively manufactured on a large scale. In addition, a large amount of organic matter was used in the synthesis process, which can cause secondary contamination.…”