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CN106075439A 一种WS2‑PVP纳米片及其制备方法和应用 无效 - 驳回

一种WS2‑PVP纳米片及其制备方法和应用
摘要：
本发明提供了一种WS2‑PVP纳米片，在WS2纳米片的表面修饰有聚乙烯吡咯烷酮。本发明还提供了上述一种WS2‑PVP纳米片的制备方法，先将硫源和钨源溶解于溶剂中，搅拌使之完全溶解；在搅拌作用下，将聚合物溶解于硫源和钼源的溶液中，得硫源、钼源和聚合物的混合溶液；将所得溶液转移至对位聚苯内衬的不锈钢反应釜中密封反应一段时间，离心分离、清洗所得产物，即得表面修饰有聚合物、具有良好的胶体稳定性的二维WS2‑PVP纳米片。本发明还提供了WS2‑PVP纳米片作为光热转化材料中的应用。本发明的WS2‑PVP纳米片具有优秀的光热转化能力、计算机断层扫描和光声成像能力，可有望应用于肿瘤的高效协同诊断和治疗。
摘要（英）：

A WS2-PVP nanometer sheet is provided. The surface of a WS2 nanometer sheet is modified with polyvinylpyrrolidone. The invention also provides a preparing method of the WS2-PVP nanometer sheet. The method includes dissolving a sulfur source and a tungsten source into a solvent, stirring to fully dissolve the sources, dissolving a polymer into the solution of the sulfur source and the tungsten source under stirring to obtain a mixed solution of the sulfur source, the tungsten source and the polymer, transferring the prepared solution to a stainless steel reaction kettle having a poly(p-phenylene) liner, reacting under a sealed condition for a certain period of time, centrifuging for separation, and cleaning the prepared product the is the two-dimensional WS2-PVP nanometer sheet the surface of which is modified with the polymer and which has good colloid stability. The invention also provides applications of the WS2-PVP nanometer sheet as a photo-thermal conversion material. The nanometer sheet has excellent photo-thermal conversion, computed tomography and photoacoustic imaging capabilities, and is expected to be used for efficient cooperative diagnosis and treatment for tumor.

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