Fluorescence-Quenched Sensor for Trinitophenol in Aqueous Solution Based on Sulfur Doped Graphitic Carbon Nitride
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In this study, we report on successful attempt towards the synthesis of sulfur self-doped g-C3N4 by directly heating thiourea in air. The synthesized materials were characterized using UV-vis spectral technique, FT-IR, XRD and TEM analysis. Further, the obtained material shows an excellent detection of carcinogenic TNP(Tri nitro phenol) in the presence of 10-fold excess of various other common interferences. The strong inner filter effect and molecular interactions(electrostatic, π-π, and hydrogen bonding interactions) between TNP and the S-g-C3N4 Nano sheets led to the fluorescence quenching of the Sg- C3N4 Nano sheets with an excellent selectivity and sensitivity towards TNP compared to that of other nitro aromatics under optimal conditions and the detection limit calculated was found to be 6.324 nM for TNP. The synthesized nanocomposite provides a promising platform for the development of sensors with improved reproducibility and stability for ultra-sensitive and selective sensing of TNP.
Abstract
In this study, we report on successful attempt towards the synthesis of sulfur self-doped g-C3N4 by directly heating thiourea in air. The synthesized materials were characterized using UV-vis spectral technique, FT-IR, XRD and TEM analysis. Further, the obtained material shows an excellent detection of carcinogenic TNP(Tri nitro phenol) in the presence of 10-fold excess of various other common interferences. The strong inner filter effect and molecular interactions(electrostatic, π-π, and hydrogen bonding interactions) between TNP and the S-g-C3N4 Nano sheets led to the fluorescence quenching of the Sg- C3N4 Nano sheets with an excellent selectivity and sensitivity towards TNP compared to that of other nitro aromatics under optimal conditions and the detection limit calculated was found to be 6.324 nM for TNP. The synthesized nanocomposite provides a promising platform for the development of sensors with improved reproducibility and stability for ultra-sensitive and selective sensing of TNP.
참고문헌 (29)
- P. Kovacic, "Nitroaromatic Compounds: Environmental Toxicity, Carcinogenicity, Mutagenicity, Therapy and Mechanism", J. Appl. Toxicol, 34, pp.810~ (2014)[DOI]
- G. He, "A Novel Picric Acid Film Sensor via Combination of the Surface Enrichment Effect of Chitosan Films and the Aggregation-induced Emission Effect of Siloles", J. Mater. Chem., 19, pp.7347~ (2009)[DOI]
- Y. Salinas, "Optical Chemosensors and Reagents to Detect Explosives", Chem. Soc. Rev., 41, pp.1261~ (2012)[DOI]
- S. W. Thomas III, "Chemical Wensors based on Amplifying Fluorescent Conjugated Polymers", Chem. Soc. Rev., 36, pp.1339~ (2007)
- J. Xiao, "Rapid Synthesis of Nanoscaleterbium-based Metal-organic Frameworks by a Combined Ultrasound Vapour Phase Diffusion Method for Highly Selective Sensing of Picric Acid", J. Mater. Chem. A, 1, pp.8745~ (2013)[DOI]
- J. F. Wyman, "Acute Toxicity, Dis-tribution, and Metabolismof 2,4,6-trinitrophenol(picric acid) in Fischer Rats", J. Toxicol. Environ. Health, 37, pp.313~ (1992)[DOI]
- L. E. Kreno, "Metal-organic Framework Materials as Chemical Sensors", Chem. Rev., 112, pp.1105~ (2012)[DOI]
- Y. Cui, "Luminescent Functional Metal-organic Frameworks", Chem. Rev., 112, pp.1126~ (2012)[DOI]
- H. Lin, "A Colorimetric Sensor Array for Detection of Triacetone Triperoxide Vapor", J. Am. Chem. Soc., 132, pp.15519~ (2010)[DOI]
- D. Gao, "Resonance Energy Transfer-amplifying Tluorescence Quenching at the Surface of Silica Nanoparticles toward Ultrasensitive Detection of TNT", Anal. Chem., 80, pp.8545~ (2008)[DOI]
- S. S. Nagarkar, "Highly Selective Detection of Nitro Explosives by a Luminescent Metal-organic Framework", Angew. Chem., 125, pp.2953~ (2013)[DOI]
- X. Wang, "A Metalfree Polymeric Photocatalyst for Hydrogen Production from Water under Visible Light", Nat. Mater., 8, pp.76~ (2009)[DOI]
- Y. Wang, "Polymeric Graphitic Carbon Nitride as a Heterogeneous Organocatalyst: from Photochemistry to Multipurpose Catalysis to Sustainable Chemistry", Angew. Chem. Int. Edit., 51, pp.68~ (2012)[DOI]
- Y. Zhang, "Non-covalent Doping of Graphitic CarbonNitride Polymerwith Graphene: Controlled Electronic Structure and Enhanced Optoelectronic Conversion", Energ. Environ. Sci., 4, pp.4517~ (2011)[DOI]
- J. Zhu, "Graphitic Carbon Nitride as a Metal-free Catalyst for NO Decomposition", Chem. Commun., 46, pp.6965~ (2010)[DOI]
- F. Z. Su, "mpg-C3N4-catalyzed Selective Oxidation of Alcohols using O2 and Visible Light", J. Am. Chem. Soc, 132, pp.16299~ (2010)
- J. H. Sun, "Bioinspired Hollow Semiconductor Nanospheres as Photosynthetic Nanoparticles", Nat. Commun., 3, pp.1139~ (2012)[DOI]
- L. L. Feng, "Nanoporous Sulfur-doped Graphitic Carbon Nitride Microrods: A Durable Catalyst for Visible-light-driven H2 Evolution", Int. J. Hydro Energy, 39, pp.15373~ (2014)[DOI]
- L. Ge, "Enhanced Visible Light Photocatalytic Hydrogen Evolution of Sulfur-doped Polymeric g-C3N4 Photo Catalysts", Mater. Res. Bull., 48, pp.3919~ (2013)[DOI]
- C. Liu, "In situ Co-crystallization for Fabrication of g-C3N4", Bi5O7I Heterojunction for Enhanced Visiblelight Photo Catalysis, 2015, pp.119, 17156~
- H. J. Kong, "Sulfurdoped g-C3N4", BiVO4 Composite Photo Catalyst for Water Oxidation under Visible Light, 2016, pp.28, 1318~
- Y. P. Zhu, "Mesoporous Phosphorus-doped g-C3N4 Nanostructured Flowers with Superior Photocatalytic Hydrogen Evolution Performance", ACS Appl. Mater. Interfaces., 7, pp.16850~ (2015)[DOI]
- Y. Yang, "Preparation and Enhanced Visible-light Photocatalytic Activity of Silver Deposited Graphitic Carbon Nitride Plasmonic Photo Catalyst", Appl. Catal. B, 142-143, pp.828~ (2013)[DOI]
- R. C. Dante, "Synthesis of Graphitic Carbon Nitride by Reaction of Melamine and Uric Acid", Mater. Chem. Phys., 130, pp.1094~ (2011)[DOI]
- D. Foy, "Modulation of the Crystallinity of Hydrogenated Nitrogen-rich Graphitic Carbon Nitrides", J. Solid State Chem., 182, pp.165~ (2009)[DOI]
- K. Wanga, "Sulfur-doped g-C3N4 with Enhanced PhotocatalyticCO2-reduction Performance", App. Catal. B, 176-177, pp.44~ (2015)
- G. G. Zhang, "Polycondensation of Thiourea into Carbon Nitride Semiconductors as Visible Light Photocatalysts", J. Mater. Chem., 22, pp.8083~ (2012)[DOI]
- L. Ge, "Enhanced Visible Light Photocatalytic Hydrogen Evolution of Sulfur-doped Polymeric g-C3N4 Photocatalysts", Mater. Res. Bull, 48, pp.3919~ (2013)
- J. Xu, "Nanoporous Graphitic Carbon Nitride with Enhanced Photocatalytic Performance", Langmuir, 29, pp.10566~ (2013)[DOI]