Sentence examples for highest fluoride adsorption from inspiring English sources

When this material was examined for fluoride scavenging ability from water, it had been established that the as-prepared HIAGO obtained by incorporating 3.0 g GO per 0.2 fraction of one gram formula amount of the mixed oxide matrix showed highest fluoride adsorption capacity (qe, mg g−1) at pH ∼ 7.0 and ambient temperature.

Highest fluoride adsorptions are 69.4, 81.3 and 82.6 % for BPD-1, BPD-2 and BPD-3, respectively, with initial fluoride concentration of 10 mg/l.

They reported the higher fluoride adsorption capacity at lower pH (< pHzpc).

Hence the pHZPC of γ-alumina was estimated as 6.5.The higher fluoride adsorption from pH 2 4 was attributed to the electrostatic attraction between the positively charged adsorbent surface and highly electro negative fluoride ions.

Nano sized- γ-alumina produced in this work had a very high fluoride adsorption capacity of 32 mg/g compared to that of commercially available γ-alumina which had an adsorption capacity of 14 mg/g(Kumar et al. 2011).

Bearing in mind, that for pH < pHZPC (6.2 8.2), the BPD surface is positive, the high fluoride adsorption capacity found for pH <6.2 is presumably due to the electrostatic attraction of fluoride by the positive surface of BPD (Tchomgui-Kamga et al. 2010).

At higher pH, fluoride adsorption on alum occurred due to electrostatic repulsion of fluoride ion to the negatively charged surface of alumina; competition for active sites by excusive amount of hydroxide ion [25].

Here, it is found that the adsorbent has a high affinity for fluoride adsorption under the given conditions (with r 2 = 0.9843).

It is found that a higher percentage of fluoride adsorption took place when the pH is in the acidic range with a maximum absorption at pH = 4 (Fig. 4).

FTIR analysis and zeta potential measurement confirmed that the hydroxyl and pronated hydroxyl groups on the adsorbent surface were involved in fluoride adsorption at high and low pH solutions, respectively.

Wide range of pH and high temperature ranges were found as the optimum conditions for fluoride adsorption.