Rapid, green and inexpensive synthesis of high quality UiO-66 amino-functionalized materials with exceptional capability for removal of hexavalent chromium from industrial waste

Sofia Rapti, Anastasia Pournara, Debajit Sarma, Ioannis T. Papadas, Gerasimos S. Armatas, Youssef S. Hassan, Mohamed H. Alkordi, Mercouri G Kanatzidis, Manolis J. Manos

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

We describe a new synthetic method for the isolation of the UiO-66 amino-functionalized material (called metal organic resin-1, MOR-1) and its composite with alginic acid (HA). MOR-1 can be prepared in high yield (∼70%) and purity within an hour via a reflux reaction of ZrCl4 and 2-amino-terephthalic acid in acifidied aqueous solution, whereas addition of sodium alginate to the fine suspension of MOR-1 resulting from the reflux synthesis affords the MOR-1-HA composite. This inexpensive, green and fast preparation method results in UiO-66 amino-functionalized materials (MOR-1 and MOR-1-HA) of the same quality and microporous features as those of compounds isolated with the slower solvothermal synthesis involving toxic and costly organic solvents. Field Emission-Scanning Electron Microscopy (FE-SEM) studies revealed that MOR-1 consists of spongy nanoparticles (150-300 nm in size), whereas MOR-1-HA nanoparticles are relatively compact. Thus, for the first time we could visualize the effect of alginic acid partially coating the surface of the MOR particles. The composite prepared by this method can be successfully utilized as a stationary phase, mixed with sand, in an anion-exchange column. The column shows excellent hexavalent chromium sorption properties and can be easily regenerated and reused several times with almost no loss of its initial Cr(vi) removal capacity. Remarkably, this ion exchange column is capable of eliminating Cr(vi) ions from chrome plating wastewater samples, thus indicating its potential for applications in industrial wastewater treatment.

Original languageEnglish
Pages (from-to)635-644
Number of pages10
JournalInorganic Chemistry Frontiers
Volume3
Issue number5
DOIs
Publication statusPublished - May 1 2016

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Industrial Waste
Resins
Metals
Composite materials
Nanoparticles
chromium hexavalent ion
Poisons
Plating
Wastewater treatment
Field emission
Organic solvents
Anions
Sorption
Amino acids
Ion exchange
Suspensions
Wastewater
Sand
Ions
Coatings

ASJC Scopus subject areas

  • Inorganic Chemistry

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Rapid, green and inexpensive synthesis of high quality UiO-66 amino-functionalized materials with exceptional capability for removal of hexavalent chromium from industrial waste. / Rapti, Sofia; Pournara, Anastasia; Sarma, Debajit; Papadas, Ioannis T.; Armatas, Gerasimos S.; Hassan, Youssef S.; Alkordi, Mohamed H.; Kanatzidis, Mercouri G; Manos, Manolis J.

In: Inorganic Chemistry Frontiers, Vol. 3, No. 5, 01.05.2016, p. 635-644.

Research output: Contribution to journalArticle

Rapti, Sofia ; Pournara, Anastasia ; Sarma, Debajit ; Papadas, Ioannis T. ; Armatas, Gerasimos S. ; Hassan, Youssef S. ; Alkordi, Mohamed H. ; Kanatzidis, Mercouri G ; Manos, Manolis J. / Rapid, green and inexpensive synthesis of high quality UiO-66 amino-functionalized materials with exceptional capability for removal of hexavalent chromium from industrial waste. In: Inorganic Chemistry Frontiers. 2016 ; Vol. 3, No. 5. pp. 635-644.
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