Electrospun polyacrylonitrile‐zeolite imidazolate framework‐8 nanofibers for the thin‐film microextraction of bisphenol A

Abstract

A polyacrylonitrile/zeolite imidazolate‐8 nanofiber film was prepared and used as an extracting phase in the thin‐film microextraction of bisphenol A. Zeolite imidazolate‐8 nanoparticles were simply synthesized at ambient temperature and combined with polyacrylonitrile to prepare a polyacrylonitrile/zeolite imidazolate‐8 film. Electrospinning was used for preparing the polyacrylonitrile/zeolite imidazolate‐8 film. High‐performance liquid chromatography equipped with an ultraviolet detector was used for measuring bisphenol A. The main factors affecting the extraction ability of the sorbent for bisphenol A were studied. The ability of the sorbent to extract the analyte was compared with other sorbents (montmorillonite nanoparticles, LiChrolut EN, Oasis HLB and halloysite nanotubes). The method was linear from 0.1 to 50 μg L−1 with a detection limit of 0.03 μg L−1. The precision expressed as relative standard deviation was less than 6%. Bisphenol A in different real samples (water, wastewater and polycarbonate baby bottle) was successfully analyzed by this method.

Silica aerogel modified electrospun polyacrylonitrile as a sorbent for thin-film microextraction of chlorpyrifos from real samples coupled with corona discharge ion mobility spectrometry detection

“…[9][10][11] The formation of sorbent on the porous supports is the goal followed by researchers. Many materials such as cellulose paper, 12 nylon-6, 13 and electrospun nanobers, 2 have been applied as support in the TFME technique. Usually, in electrospun nanober thin lms, certain amounts of pre-synthesized sorbents are mixed with the polymer solution.…”

Thin‐film solid‐phase microextraction of fluoxetine using a novel sorbent prepared by direct decoration of zeolitic imidazolate frameworks on the surface of polyacrylonitrile electrospun nanofibers

“…Previously, Mehrafza et al. [24] prepared electrospun ZIF‐8‐doped‐PAN nanofibers and applied it for TF‐SPME of bisphenol A. They showed that doping ZIF‐8 into PAN, increased the extraction efficiency by around 2.5 times.…”

“…Different materials and coating methods have been applied for preparing the extraction phases for TF-SPME such as polydimethylsiloxane (PDMS) [13], coated glass wool fabric [14], adsorbent particles (Carboxen or divinylbenzene) loaded into a PDMS [15,16], chemically modified cellulose paper [17], woven cotton yarn [18] electrospun nanofibers, [19][20][21], etc. Electrospun nanofibers have been used as the extraction medium in various sample preparation methods, such as micro-SPE [22], SPME [23], and TF-SPME [24]. Electrospun nanofibrous coatings possess a large surface-to-volume ratio, which would improve their extraction capability related to bulk polymeric materials.…”

“…All these make it a suitable candidate as an extraction medium, and as such it has already been used as an extraction sorbent in SPE [27], micro-SPE [28], and SPME [29]. Previously, Mehrafza et al [24] prepared electrospun ZIF-8-doped-PAN nanofibers and applied it for TF-SPME of bisphenol A. They showed that doping ZIF-8 into PAN, increased the extraction efficiency by around 2.5 times.…”

Research Progress in Polymer-based Metal-organic Framework Nanofibrous Membranes Based on Electrospinning

“…(b)UiO-66-NH 2 NFM 用于处理有毒工业化学品和化学战剂的 示意图 [42] Fig. 8 (a) Possible mechanism of photocatalytic degradation of MB on PLA/ZIF-8@GO fibers [41] , and (b) illustration of UiO-66-NH 2 NFM used for protection against toxic industrial chemicals and chemical warfare agents [42] 比于 [48] 和壳聚糖(CS)/MIL-101(Fe) [49] 两 种 MOFs NFMs, 用于检测尿中的左炔诺孕酮和甲 地孕酮乙酸酯及血液中的四氢大麻酚。Xu 等 [50] 制 备的 PS/MOF-199 NFM 用于检测人尿中的乙醛。 Mehrafza 等 [51] 制备的 PAN/ZIF-8 NFM 用于检测废 水中的双酚 A。Pang 等 [52] 制备的 UiO-66/PAN NFM 用于检测四种植物激素。Abbasl 等 [53] [57] 利用混合纺丝法制备的 图 9 (a)Zn-MOF/PST-1NFM 的荧光照片 [45] ; (b)荧光试纸的 可逆性实验 [47] Fig. 9 (a) Fluorescent image of Zn-MOF/PST-1 NFM [45] , and (b) reversibility test of the fluorescent test paper with NB and methanol [47] 图 10 (a)定向静电纺丝纤维中质子传导示意图和横截面取 向纳米纤维的 HRTEM 照片 [55] ; (b)CS-PEO 和 CS-PEO-3% ZIF-8 NFMs 对金黄色葡萄球菌的抗菌活性 [56] Fig.…”