生物吸附
吸附
化学
核化学
蜡样芽孢杆菌
蜡样体
色谱法
有机化学
细菌
生物
遗传学
吸附
作者
Yang Zou,Ping Chen,Zhenyu Wang,Rong Hu,De-Jun Jing,Q. Huang
出处
期刊:PubMed
日期:2012-08-01
卷期号:23 (8): 2212-8
被引量:1
摘要
Taking Trametes gallica mycelium pellets, Bacillus cereus, and their co-immobilized biomaterial as bio-adsorbents, this paper studied their Pb2+ adsorption under effects of different contact time, medium initial pH value and Pb2+ concentration, and bio-adsorbent concentration, and compared the infrared spectra of the bio-adsorbents before and after Pb2+ absorption. The Pb2+ adsorption efficiency of the bio-adsorbents was the highest when the bio-adsorbent concentration was 2 g x L(-1), initial pH was 5.0, initial Pb2+ concentration was 50 mg x L(-1), and contact time was 1 h, with the Pb2+ biosorption rate being 71.7% for the mycelium pellets of T. gallica, 91.0% for B. cereus, and 96.9% for the co-immobilized biomaterial. The infrared spectra of the bio-adsorbents were mainly consisted of the absorption zones of protein, carbohydrates, and sulphur- and phosphors-based groups, suggesting that hydroxyl, carboxyl, and sulphur- and phosphate-based groups played important roles in the Pb2+ adsorption by the bio-adsorbents.
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