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Chemistry and Industry of Forest Products ›› 2019, Vol. 39 ›› Issue (1): 29-34.doi: 10.3969/j.issn.0253-2417.2019.01.004

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Synthesis and Properties of Oxidative Modified Satium Lignosulfonate/Graphene Quantum Dots Composites

Lina XU1,Xiaohua YANG1,Haiyang DING1,Mei LI1,Jianling XIA1,2,*()   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material, Jiangsu Procince, Nanjing 210042, China
    2. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
  • Received:2018-09-20 Online:2019-02-25 Published:2019-03-14
  • Contact: Jianling XIA E-mail:xiajianling@126.com
  • Supported by:


Oxidative modified sodium lignosulfonate/graphene quantum dots (HSL/GQDs) composites was synthesized using by products of the sulfite-pulping procedure (sodium lignosulfonate) and citric acid.Fluorescence spectroscopy, UV-vis spectra, and TEM were used to investigate the optical properties, structure and ions detection of the prepared HSL/GQDs.The HSL/GQDs exhibited strong fluorescence, which present two times high intensity(F0)than that of the free GQDs. The experimental results showed that HSL/GQDs could detect Fe3+ with high sensitivity and specificity according to the change of the fluorescence intensity. The Fe3+ concentration and the fluorescent quenching intensity of prepared HSL/GQD safter adding Fe3+ presented a good linearity in range of 10 -500 μmol/L, with alinear equation of F/F0=0.85112-0.00111C(Fe3+)(R2=0.99).

Key words: oxidative modification lignin, graphene quantum dots, fluorescent sensor, Fe3+

CLC Number: