Calcium Alginate/Silver Nanosheet Microencapsulated Phase Change Materials with Controlled Morphology for Thermal Energy Storage and Antibacterial Application

被引：2

作者：

Zhang, Haitao ^{[1
]}

Cai, Jiajie ^{[1
]}

Su, Jieying ^{[1
]}

Zhu, Meiting ^{[1
]}

Gong, Yuanyuan ^{[2
]}

Xu, Bin ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Mat Sci & Engn, Hangzhou 310014, Peoples R China

[2] Zhejiang Scistr Sci Instrument Co Ltd, Hangzhou 311121, Peoples R China

来源：

ACS APPLIED NANO MATERIALS | 2024年 / 7卷 / 14期

关键词：

microcapsule phase change materials; template-assistedsynthesis; calcium alginate; silver nanosheets; temperature regulation; antibacterial; ASSISTED SYNTHESIS; SILVER; MICROCAPSULES; FABRICATION; NONADECANE; PARTICLES; STABILITY; COMPOSITE; EVOLUTION; EMULSION;

D O I：

10.1021/acsanm.4c02356

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A synthesis strategy of calcium alginate/silver nanosheet microencapsulated phase change material (Alg/Ag-MEPCM) with controlled morphology was proposed, which is assisted with calcium carbonate microencapsulated phase change material (CaCO3-MEPCM) as a template. After successively adsorbing alginate and Ag+ on the template surface, the addition of l-ascorbic acid dissolved CaCO3 in the template to synthesize calcium alginate, while Ag+ was reduced to silver nanosheets by controlling the concentrations of the alginate and Ag+. The Alg/Ag-MEPCM exhibited a satisfactory latent heat storage capacity of 99.51 J/g, which enabled the PVA hydrogels containing Alg/Ag-MEPCM to have favorable temperature regulation ability. Moreover, the abundant silver nanosheets in Alg/Ag-MEPCM provided the PVA hydrogel containing Alg/Ag-MEPCM with a favorable antimicrobial capacity. Thus, the Alg/Ag-MEPCM prepared in this work has a promising application in the fields of thermal energy storage, thermoregulation, and antimicrobials, specifically as wound dressings and food packaging.

引用

页码：16360 / 16371

页数：12

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