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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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