Preparation of a lead sensor based on porous multiwalled carbon nanotubes/thiolated chitosan composite materials

Jun WAN; Ling XING; Wei WANG

Makale detayları

Preparation of a lead sensor based on porous multiwalled carbon nanotubes/thiolated chitosan composite materials

Yazarlar:

Jun WAN | Ling XING | Wei WANG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2014 Vol.38 Issue 2, pp.182-188

Belge Tipi:

Makale

Yayın Tarihi:

5/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000727193

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

Thiolated chitosan (CS--TGA) was prepared using chitosan (CS) and  thioglycolic acid (TGA). Then MWCNTs were added to the mixture of CS--TGA  and CS to prepare the CS/CS--TGA/MWCNs porous composite by freeze-drying  method and this composite was used to modify an indium tin oxide glass  electrode. The electrode was used as a sensor for Pb2+. The morphology  and structure of the composite were characterized by infrared spectroscopy  and scanning electron microscope, and their electrochemical behavior was  also studied. Under the optimized experimental conditions, the sensor showed  a linear range of 2.0 \times  10-9\sim 2.0 \times  10-8 mol  L-1 for Pb2+ with a detection limit of 9.53 \times  10-10  mol L-1 according to the 3s  rule. The prepared heavy ion sensor  displayed excellent electrochemical response and high sensitivity.

 

Thiolated chitosan (CS--TGA) was prepared using chitosan (CS) and  thioglycolic acid (TGA). Then MWCNTs were added to the mixture of CS--TGA  and CS to prepare the CS/CS--TGA/MWCNs porous composite by freeze-drying  method and this composite was used to modify an indium tin oxide glass  electrode. The electrode was used as a sensor for Pb2+. The morphology  and structure of the composite were characterized by infrared spectroscopy  and scanning electron microscope, and their electrochemical behavior was  also studied. Under the optimized experimental conditions, the sensor showed  a linear range of 2.0 \times  10-9\sim 2.0 \times  10-8 mol  L-1 for Pb2+ with a detection limit of 9.53 \times  10-10  mol L-1 according to the 3s  rule. The prepared heavy ion sensor  displayed excellent electrochemical response and high sensitivity.

Makale detayları

Preparation of a lead sensor based on porous multiwalled carbon nanotubes/thiolated chitosan composite materials

Yazarlar: Jun WAN | Ling XING | Wei WANG

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2014 Vol.38 Issue 2, pp.182-188

Belge Tipi: Makale

Yayın Tarihi: 5/2014

Belge Dili: Türkçe

Document ID (Org No.): 2000727193

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Jun WAN | Ling XING | Wei WANG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2014 Vol.38 Issue 2, pp.182-188

Belge Tipi:

Makale

Yayın Tarihi:

5/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000727193

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527