Removal of Cu(II) and Ni(II) using cellulose extracted from sisal fiber and cellulose-g-acrylic acid copolymer

CO2‐responsive swelling behavior and metal‐ion adsorption properties in novel histamine‐conjugated polyaspartamide hydrogel

“…The results show that the rate of adsorption of Cu(II) and Ni(II) ions is higher initially and reaches its equilibrium value after nearly 80 min for Cu(II) and 120 min for Ni(II). This is likely due to a larger surface site being available initially for the adsorption, yet further increases in contact time did not offer any improvement due to rapid exhaustion of the adsorption sites after a certain contact period …”

Carboxymethyl Cellulose-Graft-Polyacrylic Acid Hydrogel: A Cost Effective and Reusable Adsorbent for Cu2+ .

“…2+ solution It is known that the pH is a critical parameter that can affect the hydrogel performance by influencing its swelling and ion uptake capability (8) . The effect of changing the pH of Cu 2+ solution on adsorption capacity of the CMC-g-PAA hydrogel is shown in Fig.…”

“…Adsorption process is emerging as an alternative to conventional methods for the effective removal of heavy metal ions and organic pollutants from effluent (6)(7)(8) . Recently, a great deal of attention has been directed towards the production of bioadsorbents from natural polymers, such as starch (9) , lignin (10) , cellulose (1,8,11,12) , chitin/chitosan (13,14) and agricultural wastes (15) .…”

“…Recently, a great deal of attention has been directed towards the production of bioadsorbents from natural polymers, such as starch (9) , lignin (10) , cellulose (1,8,11,12) , chitin/chitosan (13,14) and agricultural wastes (15) . These bioadsorbents are renewable and have many advantages over traditional adsorbents, such as cost-effective, biodegradability, non toxicity, environmentally friendly materials, hydrophilicity and good reusability (15)(16)(17) .…”

A novel cellulose-dioctyl phthate-baker's yeast biosorbent for removal of Co(II), Cu(II), Cd(II), Hg(II) and Pb(II)

“…[17] Cellulose extracted from the sisal fiber and cellulose-g-acrylic acid as adsorbents were used for the removal of Cu(II) and Ni(II) ions from aqueous solutions by the batch adsorption technique. [18] The development and characterization of a novel adsorbent, prepared by ethylation of glycidylmethacrylate grafted aminated titanium dioxide densified cellulose (Et-AMPGDC), for removal of arsenic (V) from aqueous solutions were reported. [15] A novel amino-functionalizedmagnetic cellulose composite was prepared by multistep reaction.…”