An efficient and health-friendly adsorbent N-[4-morpholinecarboximidamidoyl]carboximidamidoylmethylated polyphenylene sulfide for removing heavy metal ions from water

Photocatalytic and Adsorptional Removal of Heavy Metals from Contaminated Water using Nanohybrids

“…Several parallel mechanisms occur for the oxidation of Hg 0 elaborated in successive equations. Different multicomponent nanohybrids employed for adsorptional removal of HMs are summarized in Table 4 (121)(122)(123)(124)(125)(126)(127)(128)(129)(130)(131)(132)(133)(134)(135)(136)(137)(138)(139)(140).…”

Computational Design and Templated Synthesis of Porous Polyether Frameworks with N and O Adsorption Sites for Efficiently Chelating Heavy Metal Ions

“…It further resulted that adsorption capacity of POFBM-2 for Pb(II) ions decreased. When pH value of aqueous solution was bigger than 4.5, Pb(II) ions reacted with OHto give Pb(OH) + and Pb(OH) 2 [1]. It would result in that the adsorption of Pb(II) ions decreased from 70.9 to 50.4 mg g -1 with the pH value increasing from 4.5 to 5.5.…”

“…(10.0 mg) was added into a solution (50 mL, 100 ppm) of Pb(II) (pH = 4.5), Cu(II) (pH = 4.5), Ni(II) (pH = 4.5), Cd(II) (pH = 5.5) and Cr(III) (pH = 4.0) ions. After the aqueous suspension had been stirred for 1,2,3, 5, 10, 20, 30, 50, 80, 140, 200 and 260 min, the resin was filtrated.…”

“…Relationship between equilibrium concentration of these heavy metal ions and equilibrium adsorption capacity of POFBM-2 for the heavy metal ions was shown in . Adsorption capacity values of POFBM-2 for heavy metal ions were fitted by the Langmuir [3] and Freundlich [1] adsorption isotherm models (Figure S4). The…”

“…(10.0 mg) was added into a solution (50 mL, 100 ppm) of Pb(II) (pH = 4.5), Cu(II) (pH = 4.5), Ni(II) (pH = 4.5), Cd(II) (pH = 5.5) and Cr(III) (pH = 4.0) ions. After the aqueous suspension had been stirred for 1,2,3, 5, 10, 20, 30, 50, 80, 140, 200 and 260 min, the resin was filtrated.Concentrations of remanent heavy metal ions in the filtrates were determined by AAS. (10, 20, 30, 40, 50, 70, 90 and 110 ppm) of solutions containing a kind of heavy metal ions were prepared by further dilution from the solution (1000…”