BP-GO-AgNPs复合涂层的制备及其抑菌性能研究

Preparation and antibacterial properties of BP-GO-AgNPs composite coating

摘要:

采用液相剥离技术对黑磷和氧化石墨烯进行分散，通过共价键作用制得BP-GO复合载体，经氧化还原反应在BP-GO复合载体表面原位还原AgNPs。探究了硝酸银含量、BP-GO含量比值对复合粉体性能影响，对比分析了相同条件下制备的BP-GO-AgNPs与GO-AgNPs复合涂层的抑菌性能。利用SEM、TEM分析表明，BP与GO成功分散，且BP-GO载体成功复合，同时AgNPs成功负载在载体表面，较优的AgNO3添加参数为3×10-4mol。XPS分析表明，BP与GO纳米片通过P-C、P-O-C的键合作用力联接，且AgNPs成功负载在载体表面，成功制得BP-GO-AgNPs复合粉体。Raman分析表明，复合粉体中BP-GO含量较优比值为1：1。抑菌结果表明，相同条件下，BP-GO-AgNPs复合涂层相较于GO-AgNPs复合涂层的抑菌效果更好。 关键词: BP；GO；AgNPs；抑菌涂层

Abstract:

The BP and GO were dispersed by liquid-phase stripping technique. By covalent bonding, BP-GO composite carrier was prepared. AgNPs were reduced in situ on the surface of BP-GO composite carrier by redox method.The effects of silver nitrate content and BP-GO content ratio on the properties of composite powders were investigated, and the antibacterial properties of BP-GO-AgNPs and GO-AgNPs composite coatings prepared under the same conditions were compared and analyzed.SEM and TEM analysis showed that BP and GO were successfully dispersed, BP-GO carrier was successfully combined, and AgNPs were successfully loaded on the carrier surface,with the optimal AgNO3 dosage parameter was 3×10-4mol.XPS analysis showed that BP-GO-AgNPs composite powders were successfully prepared by the joint of P-C and P-O-C, and the AgNPs were successfully loaded on the surface of the carrier.Raman analysis showed that the optimal ratio of BP-GO content in the composite powder was 1:1.The antibacterial results showed that the BP-GO-AgNPs composite coating had better antibacterial effect than the GO-AgNPs composite coating under the same conditions.