Glycine-assisted evolution of palygorskite via a one-step hydrothermal process to give an efficient adsorbent for capturing Pb(ii) ions

Abstract

As the materials of “green 21st century material worlds”, natural silicates have received unprecedented attention by virtue of their abundance, low-cost, stability, and non-toxic and eco-friendly nature compared to other synthetic materials.

Preparation of Poly(acrylic acid) ‐Boron Nitride Composite as a Highly Efficient Adsorbent for Adsorptive Removal of Heavy Metal Ions

“…With the rapid development of economy, the modern industry has made great development, and the resulting environmental problems have become increasingly serious [1–3] . Especially the contamination of heavy metals caused the attention of people because the heavy metal ions can′t decompose and introduce the potential danger of bioaccumulation, which may eventually affect man through the food chain [4–6] . Therefore, it is very necessary to remove effectively heavy metal ions from waste water.…”

From spent dye-loaded palygorskite to a multifunctional palygorskite/carbon/Ag nanocomposite

“…[4][5][6] By virtue of the special crystal structure and its surface properties, PAL has been widely used in many elds such as in nanocomposites, 7,8 carriers of catalysts, 9,10 colloidal agents 11 and adsorbents. [12][13][14] Among them, the application of PAL as an adsorbent is especially of concerned. For one thing, the large specic surface area, good ion-exchange capability and rich surface groups of PAL make it easily capture adsorbates through hydrogen-bonding, ionexchange and complexation interactions of silanol groups with adsorbates; [15][16][17] for another, the isomorphous substitution of Al 3+ for Si 4+ in the tetrahedral layer and divalent cations (i.e., Mg 2+ , Fe 2+ , Zn 2+ and Ca 2+ ) for Al 3+ in the octahedral layer make PAL have negative surface charges, 18 so PAL more easily generates electrostatic attraction to cationic molecules or ions.…”