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Preparation and Properties of Graphene Oxide/Rhodamine 6G Modified Filter Paper
Received:November 10, 2023  
DOI:10.11980/j.issn.0254-508X.2024.03.005
Key Words:filter paper  graphene oxide  rhodamine 6G  iron ion  detection performances
Fund Project:陕西工业职业技术学院自然科学类重点项目(2023YKZD-005);咸阳市重点研发计划项目(2021ZDYF-GY-0042);陕西省专家服务计划(2022WGZJ-11);生物质化学与材料国际联合研究中心(2018GHJD-19)。
Author NameAffiliationPostcode
FAN Jiang Shaanxi Polytechnic Institute Xianyang Shaanxi Province 712000
College of Bioresources Chemical and Materials Engineering Shaanxi University of Science & Technology Xi’an Shaanxi Province 710021 
710021
ZHANG Sufeng* College of Bioresources Chemical and Materials Engineering Shaanxi University of Science & Technology Xi’an Shaanxi Province 710021 710021
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Abstract:The paper-based sensor FP/GO/R6G-PEI was prepared by physically modifying the filter paper (FP) with graphite oxide (GO) and rhodamine 6G-polyethyleneimine (R6G-PEI). The morphology, mechanical properties, and sensing performances of FP/GO/R6G-PEI were characterized by scanning electron microscope, X-ray diffraction,servo material multi-functional high and low temperature control testing machine, UV-vis spectrometer, and PL spectrometer. Compared with FP and FP/GO, the surface smoothness and mechanical property of FP/GO/R6G-PEI increased, while the air permeability decreased. When FP/GO/R6G-PEI was immersed in Fe3+ solution, it was observed that FP/GO/R6G-PEI turned pale pink, and the fluorescence intensity was significantly enhanced, which realized the visual detection and fluorescence detection of FP/GO/R6G-PEI to Fe3+ in water. The energy gap between Structure 3 and Fe3+ (0.53 eV) was obviously smaller than that of Structure 3 (3.12 eV), indicating that the chelating system was more stable after the interaction of structure 3 with Fe3+.
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