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海藻酸钠-壳聚糖微胶囊的制备及生物吸附评价

Preparation and biosorption evaluation of /alginate-chitosan microcapsule.

作者信息

Tong Ke

机构信息

College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, People's Republic of China.

出版信息

Nanotechnol Sci Appl. 2017 Feb 3;10:35-43. doi: 10.2147/NSA.S104808. eCollection 2017.

DOI:10.2147/NSA.S104808
PMID:28223783
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5304977/
Abstract

The aim of this study was to assess the effect of alginate-chitosan microcapsule on viability characteristics of and the ability of microcapsule to remove uranium ion from aqueous solution. The effects of particle size, chitosan molecular weight and inoculum density on viability characteristics were studied using alginate-chitosan microcapsule-immobilized experiments. In addition, the effects of pH, immobilized spherule dosage, temperature, initial uranium ion concentration and contact time on removal of uranium ion were studied using batch adsorption experiments. The results showed that alginate-chitosan microcapsule significantly improved the viability characteristics of and that subtilis/alginate-chitosan microcapsule strongly promoted uranium ion absorption. Moreover, the optimum values of pH was 6; immobilized spherule dosage was 3.5; temperature was 20°C; initial uranium ion concentration was 150 mg/L; contact time was 3 h of uranium ion absorption and the maximum adsorption capacity of uranium ion was 376.64 mg/g.

摘要

本研究的目的是评估藻酸盐-壳聚糖微胶囊对[具体微生物名称未给出]活力特性的影响以及该微胶囊从水溶液中去除铀离子的能力。使用藻酸盐-壳聚糖微胶囊固定化[具体微生物名称未给出]的实验研究了粒径、壳聚糖分子量和接种密度对活力特性的影响。此外，通过批次吸附实验研究了pH值、固定化小球剂量、温度、初始铀离子浓度和接触时间对铀离子去除的影响。结果表明，藻酸盐-壳聚糖微胶囊显著改善了[具体微生物名称未给出]的活力特性，且枯草芽孢杆菌/藻酸盐-壳聚糖微胶囊强烈促进了铀离子的吸收。此外，铀离子吸收的最佳pH值为6；固定化小球剂量为3.5；温度为20°C；初始铀离子浓度为150 mg/L；接触时间为3小时，铀离子的最大吸附容量为376.64 mg/g。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/99e7948b6b48/nsa-10-035Fig11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/730a2f25ed26/nsa-10-035Fig1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/6b22dc9b903d/nsa-10-035Fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/660e0ab5e192/nsa-10-035Fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/42c9e23720ed/nsa-10-035Fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/beb704452ef3/nsa-10-035Fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/cc408c3e579f/nsa-10-035Fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/f32887c0c1c7/nsa-10-035Fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/ee4b5234a3f5/nsa-10-035Fig10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/99e7948b6b48/nsa-10-035Fig11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/730a2f25ed26/nsa-10-035Fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/22a5925d3c8a/nsa-10-035Fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/30fdb1e068b8/nsa-10-035Fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/6b22dc9b903d/nsa-10-035Fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/660e0ab5e192/nsa-10-035Fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/42c9e23720ed/nsa-10-035Fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/beb704452ef3/nsa-10-035Fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/cc408c3e579f/nsa-10-035Fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/f32887c0c1c7/nsa-10-035Fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/ee4b5234a3f5/nsa-10-035Fig10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2cc8/5304977/99e7948b6b48/nsa-10-035Fig11.jpg

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