Development of Highly Sensitive Metal-Free Tetraphenylporphyrin-Based Optical Oxygen Sensing Materials along with ILs and AgNPs

Merve ZEYREK ONGUN

doi:https://doi.org/10.18466/cbayarfbe.507626

Article Details

Development of Highly Sensitive Metal-Free Tetraphenylporphyrin-Based Optical Oxygen Sensing Materials along with ILs and AgNPs

Authors:

Merve ZEYREK ONGUN

Publisher:

Celal Bayar University

Main Topics:

Applied physics

Journal:

Celal Bayar University Journal of Science 2019 Vol.15 Issue 1, pp.131-138

Document Type:

Article

Publication Date:

3/2019

Document Language:

English

Document ID (Org No.):

2000706143

Frequency:

Quarterly

eISSN:

1305-1385

pISSN:

1305-130X

DOI:

https://doi.org/10.18466/cbayarfbe.507626

Abstract:

 


An
oxygen sensitive optical chemical sensor has been developed based on
fluorescence quenching of the meso-tetraphenylporphyrin (H2TPP)
immobilized in a silicone derivative along with silver nanoparticles (AgNPs)
and different ionic liquids (ILs). Emission spectra of the H2TTP
doped thin film exhibited an increment due to the formation of an associated
complex between H2TPP and AgNPs. The offered thin films responded to
the oxygen in the direction of quenching with extreme sensitivity. Emission and
decay-time measurements of the H2TPP in thin solid matrices were
studied in the concentration range of 0-100% p(O2). Utilization of
the porphyrin dye along with AgNPs and ionic liquid as an additive exhibited
higher oxygen sensitivity with respect to the additive-free forms and resulted
in many advances such as linear response, improvement in sensor dynamics and
extreme sensitivity. Together with additives, the
meso-tetraphenylporphyrin-based composites yielded higher Stern-Volmer constant
(Ksv), faster response time, and larger linear response range when compared
with the additive-free form. The response time of the sensor has been recorded
as 90 s


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Article Details

Development of Highly Sensitive Metal-Free Tetraphenylporphyrin-Based Optical Oxygen Sensing Materials along with ILs and AgNPs

Authors: Merve ZEYREK ONGUN

Publisher: Celal Bayar University

Main Topics: Applied physics

Journal: Celal Bayar University Journal of Science 2019 Vol.15 Issue 1, pp.131-138

Document Type: Article

Publication Date: 3/2019

Document Language: English

Document ID (Org No.): 2000706143

Frequency: Quarterly

eISSN: 1305-1385

pISSN: 1305-130X

DOI: https://doi.org/10.18466/cbayarfbe.507626

Issues

Authors:

Merve ZEYREK ONGUN

Publisher:

Celal Bayar University

Main Topics:

Applied physics

Journal:

Celal Bayar University Journal of Science 2019 Vol.15 Issue 1, pp.131-138

Document Type:

Article

Publication Date:

3/2019

Document Language:

English

Document ID (Org No.):

2000706143

Frequency:

Quarterly

eISSN:

1305-1385

pISSN:

1305-130X

DOI:

https://doi.org/10.18466/cbayarfbe.507626