Adsorption of perrhenate ion by bio-char produced from Acidosasa edulis shoot shell in aqueous solution

Abstract

Acidosasa edulisshoot shell bio-char can act as an effective adsorbent for perrhenate ions with an adsorption capacity of 14.6 mg g−1.

Adsorption of methylene blue and tetracycline onto biomass-based material prepared by sulfuric acid reflux

“…Biomass conversion into fuels and commodity products has attracted considerable attention due to the large range of benets of environmental sustainability. 1,2 Although there has been an emphasis on the conversion of biomass to biofuels, 3 the development of new methods to generate bio-derived products such as bio-plastics, 4 bio-oils, 5 biogas, 6 bio-molecules, 7 bio-char 8 and most recently bio-carbon products has been increasing. 9 Along the same lines, bio-derived adsorbents have attracted signicant attention because they can provide an environmentally friendly and sustainable way to remove pollutants from wastewater.…”

Adsorption of diclofenac onto different biochar microparticles: Dataset – Characterization and dosage of biochar

“…However, the adsorption amount (µg g − 1 ) on biochar decreased with increase in adsorbent dosage. This observation can be explained as a consequence of partial aggregation of biochar at higher concentrations of biochar which will decrease the active sites on the surface of biochar [4] , [5] . Adsorbent dosage experiment was carried out at equilibrium time and samples were drawn.…”

Evaluation of Cd(II) Ion Removal from Aqueous Solution by a Low-Cost Adsorbent Prepared from White Yam (Dioscorea rotundata) Waste Using Batch Sorption

“…Thus due to the multiple-ion-binding sites on the adsorbent surfaces and the variety of metal ion species {Cd(OH) + and Cd 2+ } in the adsorbate, a number of metal adsorbent complexes are formed during sorption process. This can be represented according to Equation (18) [19,125,126]: Hence, the sorption of Cd(II) by the YTBS adsorbent may occur by ion exchange where the metal ion displaces the proton (H + ) from the adsorption site and becomes attached to the adsorbent forming an adsorbent metal complex. This mechanism may account for the decrease in the pH of the adsorbate after sorption between the pH 6-8 where there was substantial Cd(II) sorption which reduces as the pH further increases up till pH 10 as shown in Table 4 and Figure 9.…”