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A novel anion exchange resin based on cellulose has been prepared to adsorb
for the urgent demand of silver and the high toxicity of metal‐cyanide complexes. Quaternary ammonium groups were grafted onto cellulose beads as main active sites in tentacle‐type through a series of chemical reactions. The substitution degree of each reaction was determined to be about 0.854, 2.125, and 2.899...
Polyacrylamide/silica (PAM/SiO 2 ) composite capsules were synthesized by inverse Pickering emulsion polymerization. Silica nanoparticles modified with methacryloxypropyltrimethoxysilane (MPS) were used as a stabilizer. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and thermal gravimetric analysis (TGA) were used...
Based on the strong affinities of Fe(III) and Al(III) to fluoride, four iron- aluminum hydroxide complexes were synthesized as adsorbents for the fluoride removal. Moreover, the adsorption experiments showed that all iron-aluminum complexes could adsorb aqueous fluoride effectively and with a high capacity. When an fluoride solution of 10 mg/L−1 was added with anyone of these complexes at pH 5.0–9...
The peanut shell, an agricultural waste by-product, has been modified with AlCl3 and used for fluorine removal. Factors affecting the adsorption behavior of fluorine, such as the adsorbent dosage, solution pH, initial fluorine concentration and adsorption time, were then investigated. The fluorine removal percentage was 98.9% by 20 g/L modified peanut shell in the 10 mg/L fluorine solution at pH7...
In the present study we reported the feasibility of Pseudomonas fluorescens PFC02 biomass as an alternative biosorbent to remove Co(II) and Cd(II) metallic ions from environmental and industrial wastewater.The ability of PFC02 to remove the metallic ions was investigated by using batch biosorption procedure. The effects such as, pH, biosorbent dosage, sorbate concentrations and sorbate-sorbent contact...
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