Effects of pH, temperature, and ionic strength on adsorption of sodium dodecylbenzenesulfonate into Mg–Al–CO3 layered double hydroxides

Synthesis of Co-Al-Cl LDH by cathodic material reprocessing from cellular phone batteries

“…It was observed an irregular shape of the LDH, with high porosity and some clustering. This morphology was similar to those obtained by Reis et al for Mg-Al-CO 3 LDH [19] . These materials will test as adsorbents of pesticides and herbicides in contaminated waters 20 .…”

Hydrotalcite—A potentially significant sorbent of organic matter in calcareous alkaline soils

“…Changes in the signal intensity-to-basis width ratios of the (003) reflections could be interpreted as an indicator for OM sorption to the entrance of the interlayer space of the minerals. The attenuation of the reflections can be also explained by OM diminishing the reflection intensity, as observed by Hussein et al (2001) and dos Reis et al (2004).…”

“…Layered double hydroxides are known for their unique anion exchange properties (e.g., Newman and Jones, 1998) which allows for various organic or inorganic anions to be present in the interlayer space. Recently, the sorption of organic compounds such as anionic organic toxicants (Ulibarri et al, 1995), pesticides (Celis et al, 2000;Inacio et al, 2001), lignite-derived humic acids (Seida and Nakano, 2000), or surfactants (dos Reis et al, 2004) has been studied intensively. Except for some studies on sorption of OM from upland surface and peat water (Amin and Jayson, 1996;Hussein et al, 2001), information on the adsorption of natural OM to hydrotalcite is scarce and non-detailed.…”

Synthesis and physicochemical characterization of ZnMgNiAl-CO3-layered double hydroxide and evaluation of its sodium dodecylbenzenesulfonate removal efficiency

“…These compounds are frequently found in surface and ground waters, becoming a major environmental and human health problem. For this reason, the interest in the removal of these compounds has increased and a variety of adsorbents have been investigated including layered double hydroxides (LDHs) [2].…”

“…Their structure consists of positively charged metal hydroxides with interlayer anions and water, with their chemical composition represented by * [5]. Based on the anionic exchange capacity and intercalation aptitudes, the LDHs are typically used as adsorbents in environmental pollution management, such as the removal of dye [6,7], chlorophenols [8,9], oxyanions [10,11], CO oxidation [12,13], sorption of metal cations [14] and surfactants [15][16][17][18][19][20].…”