Metal‐organic framework functionalized with deep eutectic solvent for solid‐phase extraction of Rhodamine 6G in water and cosmetic products

Abstract

An NH2‐MIL‐53(Al)‐DES(ChCl‐Urea) nanocomposite was synthesized for extraction and determination of Rhodamine (Rh) 6G from environmental and cosmetic samples. The deep eutectic solvent (DES) was prepared by mixing choline chloride and urea in a mole ratio of 1:2. NH2‐MIL‐53(Al)‐DES(ChCl‐Urea) nanocomposite was synthesized using the impregnation method at a ratio of 60:40 (w/w). The optimum conditions were determined after NH2‐MIL‐53(Al)‐DES(ChCl‐Urea) characterization was performed. The optimum conditions were determined as pH 8, adsorbent amount of 15 mg, total adsorption‐desorption time of 6 min, and enrichment factor of 20. The recovery values of the solid‐phase extraction method for water and cosmetic samples under optimum conditions were between 95% and 106%. NH2‐MIL‐53(Al)‐DES(ChCl‐Urea) nanocomposite was an economically advantageous adsorbent because of its reusability of 15 times. All analyses were performed using the ultraviolet‐visible spectrophotometer. The linear range, limit of detection, and limit of quantification of the method were 100–1000, 9.80, and 32.68 μg/L, respectively. The obtained results showed that the synthesized nanocomposite is a suitable adsorbent for the determination of Rh 6G in water and cosmetic samples. The real sample applications were verified with the high‐performance liquid chromatography system.

Deep Eutectic Solvent/Surfactant-Engineered GO@TiO2 Advanced Material for Sustained and Ultrafast Adsorption of Hazardous Dye from Contaminated Aqueous Environment

“…The above DES components are readily available, cost-effective, and environmentally friendly . In recent times, DESs have found applications in nanomaterial synthesis, processing, and functionalization. ,, ChCl-based DES are used to modify adsorbents to extract dyes, metal ions, and pesticides from solid/liquid matrices. − The adaptability of DES combinations, coupled with customizable composition and functionality, enables efficient exfoliation of 2D nanosheets and functionalization of both carbon–metallic nanomaterials . Despite recent studies showcasing surface-functionalized presynthesized graphene–iron nanohybrids using DESs for analytical purposes, there is a notable absence of studies exploring the potential of DESs as coupling agents for linking GO and TiO 2 .…”

Developing a cube-like nanocomposite integrated into a polymer network as a highly porous and effective electrospun nanofiber for extracting trace quantities of opioid and analgesic drugs in biological fluids

“…However, the SPE method, in addition to being a time-consuming process, demands substantial amounts of adsorbents and hazardous organic solvents. 5–8 As a result, researchers have made considerable endeavors to develop microextraction techniques that minimize or eliminate solvent consumption. 9,10…”