Poly(ethylene-co-vinyl acetate) [EVA] and silver-calcined scallop shell powder (Ag-CS) based composite (EVA/Ag-CS) films were synthesized by wet phase inversion method. The composite films were characterized by Fourier transforms infrared spectroscopy (FTIR), X-ray diffraction (XRD) analysis, field emission scanning electron microscopy (FE-SEM), water sorption test, and contact angle measurement. The functional properties such as photocatalytic and antibacterial properties were also studied in detail. Calcined scallop shell powder, which mainly contains CaO and Ca(OH)₂ was prepared from a naturally occurring scallop shell by the sol–gel method. Silver-calcined scallop shell powder was prepared by the reduction of silver nitrate solution in the presence of calcined scallop shell powder. It was found that composite with a 6 wt% Ag-CS showed 5% better tensile strength and improved thermal properties than the pristine EVA. The incorporation of Ag-CS imparts photocatalytic property to EVA polymer matrix. Kinetics study showed that the photocatalytic process takes place through a pseudo-first-order manner. The antibacterial study of the prepared samples was tested by the agar-disc diffusion method. The composites are found to be good antibacterial material against Staphillococus aureus and Escherichia coli bacteria.

通过湿相转化法合成了聚（乙烯-醋酸乙烯酯共聚物）[EVA]和银煅烧扇贝壳粉（Ag-CS）复合膜（EVA / Ag-CS）。通过傅立叶变换红外光谱（FTIR），X射线衍射（XRD）分析，场发射扫描电子显微镜（FE-SEM），吸水率测试和接触角测量对复合膜进行表征。还详细研究了功能性质，例如光催化和抗菌性质。煅烧的扇贝贝壳粉，主要含有CaO和Ca（OH）₂由天然扇贝壳通过溶胶-凝胶法制备。通过在煅烧的扇贝贝壳粉的存在下还原硝酸银溶液来制备银煅烧的扇贝贝壳粉。发现具有6wt％的Ag-CS的复合材料显示出比原始EVA更好的5％的拉伸强度和改善的热性能。Ag-CS的掺入赋予EVA聚合物基体光催化性能。动力学研究表明，光催化过程是通过拟一级反应发生的。通过琼脂圆盘扩散法测试了所制备样品的抗菌性。发现该复合物是针对金黄色葡萄球菌和大肠杆菌细菌的良好的抗菌材料。