کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7934602 | 1512939 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
SnO2-montmorillonite composite for removal and inhibition Microcystis aeruginosa assisted by UV-light
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Cyanobacterial blooms have become a serious pollution problem, in particular, for water resources. Microcystis aeruginosa (M. aeruginosa) is most common toxic cyanobacterial bloom in fresh waters. In this paper, SnO2-montmorillonite composite was prepared by ion exchange method and applied to remove M. aeruginosa with the assistance of UV-light. The structure of the resulting composite was identified by XRD, IR and TEM. It was determined that some SnO2 nanoparticles were inserted into the interlayer of montmorillonite and some were dispersed on the surface of montmorillonite. M. aeruginosa removal efficiency was judged by the rate of 95% after treatment with 0.3â¯g/L SnO2-montmorillonite for 1â¯h. SnO2-montmorillonite composite absorbed M. aeruginosa and promoted M. aeruginosa lysis by damaging cell wall and membrane. The cellular contents, including protein and chlorophyll a, were then degraded with the assistance of UV-light, which inhibited the biological activity of M. aeruginosa. In fact, SnO2-montmorillonite composite removed M. aeruginosa by combination of adsorption flocculation and UV-induced catalytic degradation. SnO2-montmorillonite shows promise to become an effective material for the removal of algae and the cyanobacteria bloom.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science: Materials International - Volume 28, Issue 3, June 2018, Pages 281-287
Journal: Progress in Natural Science: Materials International - Volume 28, Issue 3, June 2018, Pages 281-287
نویسندگان
Na Gu, Xiaoyu Meng, Jinlong Gao, Kuitao Wang, Pei Zhao, Huihui Qin,