Optical properties of chitosan/hydroxyl-functionalized graphene quantum dots thin film for potential optical detection of ferric (III) ion

被引:42
作者
Anas, Nur Ain Asyiqin [1 ]
Fen, Yap Wing [1 ,2 ]
Omar, Nur Alia Sheh [1 ]
Ramdzan, Nur Syahira Md [2 ]
Daniyal, Wan Mohd Ebtisyam Mustaqim Mohd [1 ]
Saleviter, Silvan [1 ]
Zainudin, Afiq Azri [2 ]
机构
[1] Univ Putra Malaysia, Inst Adv Technol, Funct Devices Lab, Upm Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Fac Sci, Dept Phys, Upm Serdang 43400, Selangor, Malaysia
关键词
Surface plasmon resonance; Optical properties; Graphene; Quantum dots; Sensing; Ferric ion; SURFACE-PLASMON RESONANCE; SENSING PROPERTIES; CHITOSAN; OXIDE; SENSOR; FLUORESCENCE; WATER; NANOCLUSTERS; SPECTROSCOPY; POLYANILINE;
D O I
10.1016/j.optlastec.2019.105724
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this research, the preparation of chitosan and hydroxyl-functionalized graphene quantum dots (HGQDs) composite has been described. The spin coating technique was used to prepare the chitosan/hydroxyl-functionalized graphene quantum dots (Cs/HGQDs) thin film. The Cs/HGQDs thin film was then characterized using the Fourier transform infrared spectroscopy which confirmed the existence of amino groups, carboxylic acid groups, carboxyl groups and hydroxyl groups in Cs/HGQDs. UV-Vis absorption spectroscopy and photoluminescence (PL) were used to study the optical properties of the thin film. The absorption of Cs/HGQDs thin film was high with optical band gap of 3.797 eV. The intensity of PL spectra of the thin film was observed around wavelength of 420 nm. The incorporation of Cs/HGQDs thin film with surface plasmon resonance spectroscopy produced positive responses towards the Fe3+ ion solutions of different concentration and it was found that Cs/HGQDs thin film able to detect Fe3+ as low as 0.5 ppm with a sensitivity of 0.11396 degrees ppm(-1). Subsequently, Cs/HGQDs layer have high potential as sensing layer to detect Fe3+ due to high affinity of Fe3+ ion towards the thin film with a value of binding affinity constant, K equals to 5.79 ppm(-1). Atomic force microscopy was used to observe the surface morphology of the thin film and the result indicates that the thin film is relatively smooth and homogenous which also confirmed the interaction of Fe3+ with the thin film. Thus, Cs/HGQDs thin film shows potential for the detection of Fe3+ in solution.
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页数:8
相关论文
共 65 条
[21]   Analysis of Pb(II) ion sensing by crosslinked chitosan thin film using surface plasmon resonance spectroscopy [J].
Fen, Yap Wing ;
Yunus, W. Mahmood Mat ;
Talib, Zainal Abidin .
OPTIK, 2013, 124 (02) :126-133
[22]   Surface plasmon resonance optical sensor for detection of Pb2+ based on immobilized p-tert-butylcalix[4]arene-tetrakis in chitosan thin film as an active layer [J].
Fen, Yap Wing ;
Yunus, W. Mahmood Mat ;
Yusof, Nor Azah .
SENSORS AND ACTUATORS B-CHEMICAL, 2012, 171 :287-293
[23]   Detection of arsenic in groundwater using a surface plasmon resonance sensor [J].
Forzani, Erica S. ;
Foley, Kyle ;
Westerhoff, Paul ;
Tao, Nongjian .
SENSORS AND ACTUATORS B-CHEMICAL, 2007, 123 (01) :82-88
[24]   Tunable optical properties of OH-functionalised graphene quantum dots [J].
Geethalakshmi, K. R. ;
Teng Yong Ng ;
Crespo-Otero, Rachel .
JOURNAL OF MATERIALS CHEMISTRY C, 2016, 4 (36) :8429-8438
[25]   Surface plasmon resonance analysis of dynamic biological interactions with biomaterials [J].
Green, RJ ;
Frazier, RA ;
Shakesheff, KM ;
Davies, MC ;
Roberts, CJ ;
Tendler, SJB .
BIOMATERIALS, 2000, 21 (18) :1823-1835
[26]   Inositol directed facile "green" synthesis of fluorescent gold nanoclusters as selective and sensitive detecting probes of ferric ions [J].
Halawa, Mohamed Ibrahim ;
Wu, Fengxia ;
Nsabimana, Anaclet ;
Lou, Baohua ;
Xu, Guobao .
SENSORS AND ACTUATORS B-CHEMICAL, 2018, 257 :980-987
[27]   Graphene quantum dot functionalized by chitosan and beta-cyclodextrin as a new support nanocomposite material for efficient methanol electrooxidation [J].
Hasanzadeh, Mohammad ;
Shadjou, Nasrin ;
Marandi, Maryam .
JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 688 :171-186
[28]   Edge-enriched graphene quantum dots for enhanced photo-luminescence and supercapacitance [J].
Hassan, Mahbub ;
Haque, Enamul ;
Reddy, Kakarla Raghava ;
Minett, Andrew I. ;
Chen, Jun ;
Gomes, Vincent G. .
NANOSCALE, 2014, 6 (20) :11988-11994
[29]  
Homola J, 2006, SPRINGER SER CHEM SE, V4, P1, DOI 10.1007/b100321
[30]   Present and future of surface plasmon resonance biosensors [J].
Homola, J .
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2003, 377 (03) :528-539