Journal of Industrial and Engineering Chemistry ( IF 6.1 ) Pub Date : 2017-12-17 Bing Wang, Bin Gao, Yongshan Wan
A novel adsorbent was synthesized through the entrapment of ball-milled biochar in Ca-alginate beads for the removal of aqueous Cd(II). Batch adsorption experiments were conducted to compare Cd(II) adsorption characteristics of ball-milled biochar (BMB), Ca-alginate (CA), and Ca-alginate entrapped ball-milled biochar (CA-BMB). All the tested adsorbents showed excellent sorption ability. The maximum Cd(II) adsorption capacity estimated with Langmuir isotherm modeling was 251.8 mg g−1 for CA, 227.1 mg g−1 for CA-BMB, and 40.0 mg g−1 for BMB. The results demonstrate that entrapment of ball-milled biochar in Ca-alginate provides a low-cost and high-effective way for the removal of aqueous Cd(II).
中文翻译:
将球磨生物炭截留在藻酸钙珠粒中以去除水中的Cd(II)
通过将球磨过的生物炭截留在海藻酸钙珠粒中来合成新型吸附剂,以去除水中的Cd(II)。进行了批量吸附实验,以比较球磨生物炭(BMB),藻酸钙(CA)和夹带钙藻酸盐的球磨生物炭(CA-BMB)对Cd(II)的吸附特性。所有测试的吸附剂均显示出优异的吸附能力。用Langmuir等温线模型估算的最大Cd(II)吸附容量对于CA为251.8 mg g -1,对于CA-BMB为227.1 mg g -1,对于BMB为40.0 mg g -1。结果表明,将球磨生物炭截留在海藻酸钙中提供了一种低成本高效去除水中Cd(II)的方法。