Hydrothermal Synthesis of Fluorescent Schiff Base Functionalized Carbon Dot Composite for The Removal Of Cd(II) Ions From Aqueous Solution: Equilibrium and Kinetic Studies.

Felıx NWORIE; Jane EBUNOHA

doi:https://doi.org/10.18596/jotcsa.775739

Makale detayları

Hydrothermal Synthesis of Fluorescent Schiff Base Functionalized Carbon Dot Composite for The Removal Of Cd(II) Ions From Aqueous Solution: Equilibrium and Kinetic Studies.

Yazarlar:

Felıx NWORIE | Jane EBUNOHA

Yayıncı:

Turkish Chemical Society

Ana Başlıklar:

Kimya ve ilgili bilimler

Dergi:

Journal of the Turkish Chemical Society Section A: Chemistry 2021 Vol.8 Issue 1, pp.137-154

Belge Tipi:

Makale

Yayın Tarihi:

2/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000502417

Sıklık:

Üç Aylık

eISSN:

2149-0120

DOI:

https://doi.org/10.18596/jotcsa.775739

Özet:

 

In this study, bis(salicylidene)ethylenediamine (SALEN)  functionalized carbon dot derived from waste banana peels was synthesized using facile hydrothermal technique and the optical biomarker and adsorption properties of the highly fluorescent red  nanomaterial studied. The carbon dot and its functionalized counterpart were characterized using FTIR, SEM/EDX and UV-Visible technique.  Evaluation of the optical properties of the yellowish brown carbon dot and reddish highly luminescent functionalized carbon dot indicated band gap energy values of 1.85 and 2.04 eV respectively. Extraneous variables such as effect of initial metal ion concentration, pH and contact time were studied in the batch extraction process for the sorption of Cd(II) ions from  aqueous solution. The sorption of Cd(II) ion was observed to be highest at pH 5 with 99.3 % removal efficiency. The adsorption isotherm and kinetic models indicated interplay of physisorption and chemisorption processes.  The mechanism for the chelation of Cd(II) ions onto the surface of the functionalized carbon dot was mainly governed by inner aphere chelation and ion exchange. Reusability of the material was evaluated using adsorption-desorption experiments. Result of the study indicated the potential of the functionalized carbon dot as (i) semiconductor materials with strong photoluminescence at the visible region which could be used as environmental biomarker and as sensor (ii) effective, efficient and low cost adsorbent for   remediating Cd(II) ions contaminated environment.

Makale detayları

Hydrothermal Synthesis of Fluorescent Schiff Base Functionalized Carbon Dot Composite for The Removal Of Cd(II) Ions From Aqueous Solution: Equilibrium and Kinetic Studies.

Yazarlar: Felıx NWORIE | Jane EBUNOHA

Yayıncı: Turkish Chemical Society

Ana Başlıklar: Kimya ve ilgili bilimler

Dergi: Journal of the Turkish Chemical Society Section A: Chemistry 2021 Vol.8 Issue 1, pp.137-154

Belge Tipi: Makale

Yayın Tarihi: 2/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000502417

Sıklık: Üç Aylık

eISSN: 2149-0120

DOI: https://doi.org/10.18596/jotcsa.775739

Sayı

Yazarlar:

Felıx NWORIE | Jane EBUNOHA

Yayıncı:

Turkish Chemical Society

Ana Başlıklar:

Kimya ve ilgili bilimler

Dergi:

Journal of the Turkish Chemical Society Section A: Chemistry 2021 Vol.8 Issue 1, pp.137-154

Belge Tipi:

Makale

Yayın Tarihi:

2/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000502417

Sıklık:

Üç Aylık

eISSN:

2149-0120

DOI:

https://doi.org/10.18596/jotcsa.775739