Details

Autor(en) / Beteiligte

• Zuo, Jingjing
• Lv, Shenghua
• Liang, Shan
• Zhang, Shanshan
• Wang, Jialin
• Wei, Dequan
• Liu, Leipeng

Titel

Fabrication of 1,8-naphthalimide modified cellulose derivative composite fluorescent hydrogel probes and their application in the detection of Cr(VI)

Ist Teil von

• International journal of biological macromolecules, 2023-12, Vol.253, p.127082-127082, Article 127082

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2023

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• The design and development of a rapid and quantitative method for the detection of heavy metal ions is of great importance for environmental protection. We have prepared a 1,8-Naphthalimide modified cellulose composite fluorescent hydrogel (CENAEA/PAA) with a stereo double network structure. Characterized by excellent hydrogel functional structure and fluorescence detection performance, it can efficiently and selectively identify and detect Cr(VI) with linear quenching in the range of 0–400 μmol/L and detection limit of 0.58 μmol/L for Cr(VI). The results show that the CENAEA/PAA can effectively adsorb Cr(VI) with a maximum adsorption capacity of 189.04 mg/g. Finally, the morphological characteristics, chemical structure, fluorescence properties and adsorption behavior of CENAEA/PAA were analyzed and fitted well with the pseudo-second-order model and Freundlich model. Thus, the present work provides a green and sustainable approach for the synthesis of a functional material that can be used for the detection and adsorption of heavy metal ions. [Display omitted] •A 1,8-naphthalenediamine-modified cellulose composite fluorescent hydrogel (CENAEA/PAA) with a stereo double network structure was prepared.•The CENAEA was used as the raw material for in situ polymerization with acrylic acid to form CENAEA/PAA fluorescent hydrogel with three-dimensional double network structure.•It can efficiently detect and adsorb Cr(VI) with a linear quenching range of 0-400 μmol/L. The detection limit of Cr(VI) is 0.58 μmol/L and the maximum adsorption amount is 189.04 mg/g.•It provides new ideas for the design and development of cellulose-based fluorescent probes for biomass resources.