An in situ facile growth procedure was developed in this paper, for the first time for preparing a hierarchical three-dimensional composite containing graphene layers with layered double hydroxide (LDH) nanosheet groups. The production procedure includes covering TiOOH colloids over the graphene surfaces and the following in situ evolution of layered NiTi-LDH nanosheet groups on the graphene sheets surfaces within a hydrothermal procedure. It was understood that by growing the NiTi-LDH nanosheet groups uniformly and perpendicularly over graphene sheets’ both sides, a hierarchical three-dimensional nanocomposite is constructed. The volatile Lavandula angustifolia compounds were collected and detected through headspace solid-phase microextraction utilizing GO/Ni–Ti-LDH fiber along with capillary GC–MS as a controlling method. The laboratory parameters included sample weight, humidity effect, extraction time, extraction temperature, desorption temperature, and desorption time, which were tested and enhanced. HS-SPME was used after GC–MS to separate and identify thirty-two compounds.

本文开发了一种原位简便的生长方法，首次制备了包含层状双氢氧化物（LDH）纳米片基的石墨烯层的三维三维复合材料。生产过程包括在石墨烯表面覆盖TiOOH胶体，以及在水热过程中在石墨烯片表面上原位形成分层的NiTi-LDH纳米片基团。可以理解的是，通过在石墨烯片的两侧均匀且垂直地生长NiTi-LDH纳米片基团，可以构建出层次化的三维纳米复合材料。挥发性薰衣草通过GO / Ni-Ti-LDH纤维和毛细管GC-MS的顶空固相微萃取对化合物进行收集和检测。实验室参数包括样品重量，湿度影响，提取时间，提取温度，解吸温度和解吸时间，这些均经过测试和增强。HS-SPME在GC-MS之后用于分离和鉴定32种化合物。