Electrosynthesis, Characterization, and Application of Novel Hybrid Materials Based on Carbon Nanotube-Polyaniline-Nickel Hexacyanoferrate Nanocomposites

Journal Article · Tue Feb 14 04:00:00 EST 2006 · Journal of Materials Chemistry, 16(6):585-592

DOI:https://doi.org/10.1039/b510947g· OSTI ID:877555

Lin, Yuehe; Cui, Xiaoli

Incorporating nanoclusters of nickel hexacyanoferrates (NiHCF) onto a porous polyaniline (PANI)?carbon nanotube (CNT) matrix provides a novel class of hybrid materials with a good ion exchange capacity, high stability, and a selectivity for caesium ions. The CNT-PANI-NiHCF nanocomposite films have been synthesized by electrodeposition step-by-step on glassy carbon electrodes and characterized with cyclic voltammetry (CV), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) techniques. CV and XPS investigations confirmed the formation of PANI and NiHCF on the surface of CNTs. The microscopy of NiHCF hybrid materials was characterized by SEM and TEM; the size of NiHCF particles is approximately 20 to 50 nm. The porous high surface area CNT matrix provides the high loading capacity for the deposition of NiHCF nanoparticles, while the PANI thin-film further stabilizes the nanoparticles. The selectivity for caesium ion adsorption of the hybrid materials was investigated. The high selectivity for caesium provides the base to develop a novel electrochemical ion exchange process for the treatment of nuclear wastes and radioactive-caesium contaminated waters.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 877555
• Report Number(s): PNNL-SA-47949; 17505
• Journal Information: Journal of Materials Chemistry, 16(6):585-592, Journal Name: Journal of Materials Chemistry, 16(6):585-592
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ADSORPTION
CAPACITY
CARBON
CESIUM
DEPOSITION
ELECTRODEPOSITION
ELECTRODES
Environmental Molecular Sciences Laboratory
ION EXCHANGE
MICROSCOPY
NANOTUBES
NICKEL
RADIOACTIVE WASTES
SCANNING ELECTRON MICROSCOPY
STABILITY
SURFACE AREA
TRANSMISSION ELECTRON MICROSCOPY
X-RAY PHOTOELECTRON SPECTROSCOPY
carbon naotubes
conducting polymer
ion exchange