Adsorption of Cu(II) in aqueous solution using microwave-assisted titanate nanotubes

Lin Han Chiang Hsieh; Hsin Hung Ou; Chao Wei Huang

doi:10.1007/s13204-018-0932-4

Adsorption of Cu(II) in aqueous solution using microwave-assisted titanate nanotubes

Lin Han Chiang Hsieh, Hsin Hung Ou, Chao Wei Huang

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Abstract: This study aims to investigate the adsorption behavior and mechanism of Cu(II) over microwave-assisted titanate nanotubes (MTNTs, Na_xH_2−xTi₃O₇). The effect of power level of microwave irradiation during MTNT synthesis on the adsorption mechanism is also examined. Regarding the adsorption potential of Cu(II) over MTNTs, more than 80% of Cu(II) is removed within the first minute, and the adsorption equilibrium is reached by half an hour. The adsorption capacities of MTNTs obtained from Langmuir model fall in the range of 1.86–2.46 mmol g⁻¹. According to the characterizations including ICP–AES, XRD, FT–IR/DRIFT, XPS, and H₂-TPR, the amount and binding intensity of intercalated Na⁺ within MTNTs, which are greatly dependent upon the power level of microwave irradiation during MTNT synthesis, dominate the adsorption kinetics, the adsorption capability, the adsorption stabilization, and the extent of copper complexation. An adsorption mechanism is also proposed such that ion exchange process and complexation reaction are both involved in the Cu(II) adsorption over MTNTs.

Original language	English
Pages (from-to)	505-514
Number of pages	10
Journal	Applied Nanoscience (Switzerland)
Volume	9
Issue number	4
DOIs	https://doi.org/10.1007/s13204-018-0932-4
Publication status	Published - 2019 Jun 1
Externally published	Yes

All Science Journal Classification (ASJC) codes

Biotechnology
Atomic and Molecular Physics, and Optics
Materials Science (miscellaneous)
Physical and Theoretical Chemistry
Cell Biology
Electrical and Electronic Engineering

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10.1007/s13204-018-0932-4

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title = "Adsorption of Cu(II) in aqueous solution using microwave-assisted titanate nanotubes",

abstract = "Abstract: This study aims to investigate the adsorption behavior and mechanism of Cu(II) over microwave-assisted titanate nanotubes (MTNTs, NaxH2−xTi3O7). The effect of power level of microwave irradiation during MTNT synthesis on the adsorption mechanism is also examined. Regarding the adsorption potential of Cu(II) over MTNTs, more than 80% of Cu(II) is removed within the first minute, and the adsorption equilibrium is reached by half an hour. The adsorption capacities of MTNTs obtained from Langmuir model fall in the range of 1.86–2.46 mmol g−1. According to the characterizations including ICP–AES, XRD, FT–IR/DRIFT, XPS, and H2-TPR, the amount and binding intensity of intercalated Na+ within MTNTs, which are greatly dependent upon the power level of microwave irradiation during MTNT synthesis, dominate the adsorption kinetics, the adsorption capability, the adsorption stabilization, and the extent of copper complexation. An adsorption mechanism is also proposed such that ion exchange process and complexation reaction are both involved in the Cu(II) adsorption over MTNTs.",

author = "{Chiang Hsieh}, {Lin Han} and Ou, {Hsin Hung} and Huang, {Chao Wei}",

note = "Publisher Copyright: {\textcopyright} 2018, King Abdulaziz City for Science and Technology.",

year = "2019",

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doi = "10.1007/s13204-018-0932-4",

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T1 - Adsorption of Cu(II) in aqueous solution using microwave-assisted titanate nanotubes

AU - Chiang Hsieh, Lin Han

AU - Ou, Hsin Hung

AU - Huang, Chao Wei

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Abstract: This study aims to investigate the adsorption behavior and mechanism of Cu(II) over microwave-assisted titanate nanotubes (MTNTs, NaxH2−xTi3O7). The effect of power level of microwave irradiation during MTNT synthesis on the adsorption mechanism is also examined. Regarding the adsorption potential of Cu(II) over MTNTs, more than 80% of Cu(II) is removed within the first minute, and the adsorption equilibrium is reached by half an hour. The adsorption capacities of MTNTs obtained from Langmuir model fall in the range of 1.86–2.46 mmol g−1. According to the characterizations including ICP–AES, XRD, FT–IR/DRIFT, XPS, and H2-TPR, the amount and binding intensity of intercalated Na+ within MTNTs, which are greatly dependent upon the power level of microwave irradiation during MTNT synthesis, dominate the adsorption kinetics, the adsorption capability, the adsorption stabilization, and the extent of copper complexation. An adsorption mechanism is also proposed such that ion exchange process and complexation reaction are both involved in the Cu(II) adsorption over MTNTs.

AB - Abstract: This study aims to investigate the adsorption behavior and mechanism of Cu(II) over microwave-assisted titanate nanotubes (MTNTs, NaxH2−xTi3O7). The effect of power level of microwave irradiation during MTNT synthesis on the adsorption mechanism is also examined. Regarding the adsorption potential of Cu(II) over MTNTs, more than 80% of Cu(II) is removed within the first minute, and the adsorption equilibrium is reached by half an hour. The adsorption capacities of MTNTs obtained from Langmuir model fall in the range of 1.86–2.46 mmol g−1. According to the characterizations including ICP–AES, XRD, FT–IR/DRIFT, XPS, and H2-TPR, the amount and binding intensity of intercalated Na+ within MTNTs, which are greatly dependent upon the power level of microwave irradiation during MTNT synthesis, dominate the adsorption kinetics, the adsorption capability, the adsorption stabilization, and the extent of copper complexation. An adsorption mechanism is also proposed such that ion exchange process and complexation reaction are both involved in the Cu(II) adsorption over MTNTs.

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Adsorption of Cu(II) in aqueous solution using microwave-assisted titanate nanotubes

Abstract

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