2021
DOI: 10.1186/s13065-021-00774-x
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## Abstract:Iron phosphate, Fe2 (HPO4)3*4H2O, is synthesized at ambient temperature, using the inorganic sol–gel method coupled to the microwave route. The experimental conditions for the gelling of Fe (III)-H3PO4 system are previously defined. Potentiometric Time Titration (PTT) and Potentiometric Mass Titration (PMT) investigate the acid–base surface chemistry of obtained phosphate. Variations of surface charge with the contact time, Q a function of T, are examined for time contact varying in the range 0–72 h. The mass … Show more

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##### Cited by 4 publications
(26 citation statements)
##### References 29 publications
(26 reference statements)
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“…As reported previously, an increase in iron phosphate acidity is also observed with aging time, which leads to the rising of the characteristic O-P-O bending peak at 900 cm -1 (Ellouzi et al., 2016;Maarouf et al., 2021). Two lower frequency bands occurring at 640 and 540 cm -1 are associated with bending modes of the structural OH groups and P-O bonds, respectively.…”
Section: Characterizationsupporting
confidence: 65%
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“…As reported previously, an increase in iron phosphate acidity is also observed with aging time, which leads to the rising of the characteristic O-P-O bending peak at 900 cm -1 (Ellouzi et al., 2016;Maarouf et al., 2021). Two lower frequency bands occurring at 640 and 540 cm -1 are associated with bending modes of the structural OH groups and P-O bonds, respectively.…”
Section: Characterizationsupporting
confidence: 65%
“…The composition and the purity of this synthesis phosphate are established using dispersive energy X-ray spectroscopy (EDX), the spectrum is presented in Figure 5. As shown, no impurities that can be attributable to contamination of chemical precursors are detected (Maarouf et al, 2021).…”
Section: Scanning Electron Microscopymentioning
confidence: 89%
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“…Morphological surface features were examined by applying Jeol JSM-IT100 In TouchScopeTM Scanning Electron Microscope (SEM) connected to a microanalyzer EDS [39]. Analysis of the dosage of chromium(VI) is carried out in the aqueous phases before and after adsorption by a (EPA 7196A) UV-Visible spectrophotometer.…”
Section: Instrumentationmentioning
confidence: 99%