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二硫化钨纳米材料的制备及其光热抗菌效应研究

Preparation of Tungsten Disulfide Nanomaterials and Their Application for Photothermal Antibacterial Therapy
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摘要 本文通过将商品化二硫化钨固体酸洗插层,并经过离心、水洗、超声破碎以得到二硫化钨纳米材料(WS 2),对WS 2纳米材料进行了FT-IR、UV-vis、XRD、Raman等一系列表征,同时研究了WS 2纳米材料的光热转化性能及其抗菌效应。实验结果表明,WS 2纳米材料可以作为一种良好的光热吸收剂,其温度的改变与材料浓度、激光功率密度相关,且在近红外808 nm激光照射下,对大肠杆菌有显著的抗菌效果。并且,当WS 2纳米材料的浓度达到200 mg/L且在近红外光下照射15min,细菌的抑制率高达到97.5%,说明制备得到的WS 2纳米材料可以作为一种良好的光热吸收试剂应用于光热抗菌效应。 In this paper,tungsten disulfide nanomaterials(WS 2)are obtained by means of the commercial tungsten disulfide solid acid interlayer,and then centrifuging,washing,and ultrasonically breaking.WS 2 nanomaterials were characterized by FT-IR,UV-vis,XRD,Raman,etc.Meanwhile,the photothermal properties and antibacterial effects of WS 2 nanomaterials were also investigated.The experimental results show that WS 2 nanomaterials can be an excellent photothermal agent and their temperature change are related to the concentration of the material and the laser power density.In addition,the generated WS 2 nanomaterials displayed highly effective therapeutic efficiency in antibacterial therapy under 808 nm NIR irradiationa.When the concentration of WS 2 nanomaterials is 200 mg/L and irradiated under 808 nm near-infrared light for 15 minutes,the inhibition rate of E.coli reaches up to 97.5%,indicating the WS 2 nanomaterials can be an excellent photothermal agent for photothermal antibacterial therapy.
作者 皮洋 雍媛 赵志刚 Pi Yang;Yong Yuan;Zhao Zhigang(College of Chemistry and Environmental Protection Engineering,Southwest Minzu University,Chengdu 610041,China)
出处 《山东化工》 CAS 2020年第8期7-9,12,共4页 Shandong Chemical Industry
基金 中央高校基本科研业务专项资金(2019NYB15)。
关键词 二硫化钨 纳米材料 光热治疗 抗菌 tungsten sulfide nanomaterials photothermal therapy antibacterial
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