Silk sericin and chitosan biosorbents are low cost and highly efficient biosorbentsderived from waste biomass.Both biosorbents displayed good capacity andexcellent selectivity for gold adsorption.Silk sericin and chitosan adsorbedrespectively 1 and 3
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/17 21:47:51
Silk sericin and chitosan biosorbents are low cost and highly efficient biosorbentsderived from waste biomass.Both biosorbents displayed good capacity andexcellent selectivity for gold adsorption.Silk sericin and chitosan adsorbedrespectively 1 and 3
Silk sericin and chitosan biosorbents are low cost and highly efficient biosorbents
derived from waste biomass.Both biosorbents displayed good capacity and
excellent selectivity for gold adsorption.Silk sericin and chitosan adsorbed
respectively 1 and 3.3 mmol.g-1 of gold and have Kd values of 450 and 34,000,
respectively.Experimental evidence showed that gold adsorbed on the amide
groups of the silk sericin,while gold and copper adsorbed on the amino groups of
chitosan via charge-interactions and complexation.Binary (Au-Cu),five (Au-Co-Ni-
Cu-Zn) and six (Au-Pd-Co-Ni-Cu-Zn) separations consistently showed that silk
sericin has better selectivity (SelAu >2.4) than chitosan.It is possible to recover gold
at 99.5 % purity by silk sericin and 90 % if the solution contained palladium.
Silk sericin and chitosan biosorbents are low cost and highly efficient biosorbentsderived from waste biomass.Both biosorbents displayed good capacity andexcellent selectivity for gold adsorption.Silk sericin and chitosan adsorbedrespectively 1 and 3
biosorbents丝绸sericin和壳聚糖是低成本、高效的biosorbents
来自废物的生物资源.两biosorbents显示能力也较强
具有较好的选择性吸附黄金.丝绸sericin和壳聚糖吸附
1和3.3 mmol.g-1分别金和有价值450名和3.4无差别,
分别.实验证据表明,黄金吸附于神经酰胺
组丝绸之sericin,而黄金和铜吸附于氨基基团的
通过charge-interactions壳聚糖和络合.二进制(Au-Cu),五年(Au-Co-Ni -
Cu-Zn)和六年(Au-Pd-Co-Ni-Cu-Zn)分离持续表明,丝绸
sericin有较好的选择性(SelAu > 2.4版)比壳聚糖.这是可能的恢复金
在由丝绸sericin 99.5 %纯度和90 %如果成本包含的守护神