The valorization of Prunus mahaleb shell through acid modification for the sorption of Pb2+ removal from aqueous solution

被引:0
作者
Keskin, Zehra Saba [1 ]
Senol, Zeynep Mine [2 ]
Simsek, Selcuk [3 ]
机构
[1] Sivas Cumhuriyet Univ, Hlth Serv Vocat Sch, Dept Pharm, TR-58140 Sivas, Turkiye
[2] Sivas Cumhuriyet Univ, Fac Hlth Sci, Dept Nutr & Diet, TR-58140 Sivas, Turkiye
[3] Sivas Cumhuriyet Univ, Fac Sci, Dept Chem, TR-58140 Sivas, Turkiye
关键词
Biowaste; Biosorption; Lead; Wastewater treatment; HEAVY-METALS; GREEN ADSORBENT; ADSORPTION; PB(II); WASTE; IONS; MECHANISM; KINETICS; BIOSORPTION;
D O I
10.1007/s13399-024-05775-z
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This study aimed to investigate the biosorption performance of acid-modified waste Prunus mahaleb (PMA) shells in the removal of Pb2+ ions from aqueous solutions. Changes in the morphological properties and functional components of PMA biosorbent were characterized using SEM-EDX, FT-IR, BET, and PZC analyses. The effect of various parameters such as initial Pb2+ concentration, pH, PMA dosage, contact time, and temperature on biosorption was investigated using a batch biosorption procedure. The maximum biosorption capacity, determined using the Langmuir isotherm, was calculated to be 119 mg g(-1). It was found that the biosorption kinetic mechanism followed pseudo-second-order kinetics and intraparticle diffusion model. According to the determined thermodynamic parameters, the biosorption mechanism was found to be endothermic (Delta H degrees > 0), spontaneous (Delta S degrees > 0), and entropy-increasing (Delta G degrees < 0). The outcomes of the experiment were evaluated in comparison to other sorbents that have been previously commonly used in the literature. It was demonstrated that PMA could be a promising, environmentally friendly, cost-effective, and sustainable potential biosorbent for the removal of Pb2+ ions.
引用
收藏
页码:6943 / 6955
页数:13
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