| Literature DB >> 30753965 |
Xiaofeng Wen1, Zhuotong Zeng2, Chunyan Du3, Danlian Huang1, Guangming Zeng4, Rong Xiao5, Cui Lai1, Piao Xu1, Chen Zhang1, Jia Wan1, Liang Hu1, Lingshi Yin3, Chengyun Zhou1, Rui Deng1.
Abstract
Bentonite is a natural and environmentally clay mineral, and bentonite-derived mesoporous materials (BDMMs) were obtained conveniently from the alkali and acid treatment of bentonite. In the present study, BDMMs were explored for immobilization of laccase obtained from Trametes versicolor. As a result, bentonite-derived mesoporous materials-Laccase (BDMMs-Lac) was developed for the removal of tetracycline (TC). The enzyme immobilization process was carried out through physical adsorption contact (ion exchange adsorption, hydrogen bond adsorption, and Van der waals adsorption) between the BDMMs and laccase. The process of immobilization remarkably increased its operating temperature. The BDMMs-Lac exhibited over 60% removal efficiency for TC within 3 h in the presence of 1-hydroxybenzotriazole (HBT). In conclusion, BDMMs-Lac showed more promising potential than free laccase for practical continuous applications.Entities:
Keywords: Bentonite-derived mesoporous materials; Catalysis; Laccase; Physisorption immobilization; Tetracycline
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Year: 2019 PMID： 30753965 DOI： 10.1016/j.chemosphere.2019.02.020
Source DB: PubMed Journal: Chemosphere ISSN： 0045-6535 Impact factor: 7.086