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发表时间：2021-01-01

发表刊物：Huagong Xuebao/CIESC Journal

所属单位：化工学院

卷号：72

期号：10

页面范围：5319-5329

ISSN号：0438-1157

摘要：The urease produced by Sporosarcina pasteurii can hydrolyze urea, and the generated CO2 reacts with calcium chloride to obtain calcium carbonate with different polymorphs by urease in different solutions. The mesoporous hollow micron pure spheroids formed by self-assembly of nanospheres were obtained by urease in the supernatant of fermentation broth. Calcite with 100% was obtained by bacterial urease. Infrared spectrum analysis showed that the elliptical calcium carbonate obtained by crude urease was affected by the hydroxyl groups. The effects of urease activity and reactant concentration on vaterite were explored. It was also found that the obtained pure vaterite is very stable within 7 days and is expected to be used as a drug carrier. © 2021, Editorial Board of CIESC Journal. All right reserved.

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