Simultaneous sorption of 4-nitrophenol and 2-nitrophenol on a hybrid geocomposite based on surfactant-modified pillared-clay and activated carbon

Hamidouche, Sabiha; Bouras, Omar; Zermane, Faiza; Cheknane, Benamar; Houari, Mohamed; Debord, Jean; Harel, Michel; Bollinger, Jean‐Claude; Baudu, Michel

doi:10.1016/j.cej.2015.05.012

Cited by 67 publications

(43 citation statements)

References 47 publications

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“…In general, the adsorption of 2-nitrophenol is much higher at low pH values than at high ones. This has been reported in many studies on the adsorption of phenols and nitrophenols on different adsorbents [12][13][14] . We can conclude that pH is an important factor affecting this adsorption.…”

Section: Effect Of Phsupporting

confidence: 54%

Adsorption isotherm, kinetic and mechanism studies of 2-nitrophenol on sedimentary phosphate

Sebti¹

2015

Mediterr.J.Chem.,

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Sedimentary phosphate (SP) was used as an adsorbent for the removal of 2-nitrophenol from aqueous solutions in an attempt to investigate (the feasibility of) its application (to) in wastewater purification.Â The adsorbent was characterized by X-ray diffraction (XRD), IR spectroscopy, Fluorescence X and BET.Â The results indicated that the SP (was) is francolite (Ca10 (PO4,CO3)6F2) and mesoporous. The effect of the adsorption time and the pH of the solution were studied. The pseudo-first-order, pseudo-second-order and intraparticle diffusion models were used to fit adsorption data in the kinetic studies. The equilibrium isotherms were determined using the Langmuir, Freundlich and Dubinin-Radushkevich models. The results show that the Dubinin-Radushkevich isotherm had better agreement with the 2-nitrophenol adsorption on SP with a correlation coefficient of 0.98, an equilibrium adsorption capacity of 633 mg. g-1 and a corresponding contact time of 2 h. The results imply that intraparticle diffusion could be summarized as the basic rate-controlling mechanisms during 2-nitrophenol adsorption on SP.

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Section: Effect Of Phsupporting

confidence: 54%

Adsorption isotherm, kinetic and mechanism studies of 2-nitrophenol on sedimentary phosphate

Sebti¹

2015

Mediterr.J.Chem.,

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“…Among them, 4-nitrophenol (4-NP), the phenol derivatives, is a primary pollutant due to its high toxicity, stability and resistance to biodegradation. 4,5 Many methods for 4-nitrophenol treatment have been developed including the traditional biological and chemical method, electrochemical technique, physical adsorption and so on. [6][7][8][9] But the low degradation rate is the major disadvantage to treating non-degradable organic contaminants.…”

Section: Introductionmentioning

confidence: 99%

A wheat straw cellulose based semi-IPN hydrogel reactor for metal nanoparticles preparation and catalytic reduction of 4-nitrophenol

Ding

Zhao

et al. 2017

RSC Adv.

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“…However, the excess production of these phenol derivatives poses considerable challenge and health problems. Due to low biodegradability, high solubility, weak ionization capacity, phenol and its derivatives are commonly detected in surface water [6]. Hence, novel methods should be designed to modify the physicochemical properties of phenol based compounds in order to reduce the toxicity related issues.…”

Section: Introductionmentioning

confidence: 99%

Biofield Treatment: An Effective Strategy for Modulating the Physical and Thermal Properties of O-Nitrophenol, M-Nitrophenol and P-Tertiary Butyl Phenol

Trivedi¹,

Tallapragada²,

Trivedi³

et al. 2015

J Bioanal Biomed

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Phenolic compounds are commonly used for diverse applications such as in pharmaceuticals, chemicals, rubber, dyes and pigments. The objective of present research was to study the impact of Mr. Trivedi's biofield treatment on physical and thermal properties of phenol derivatives such as o-nitrophenol (ONP), m-nitrophenol (MNP) and p-tertiary butyl phenol (TBP). The study was performed in two groups (control and treated). The control and treated compounds were characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and surface area analysis. XRD analysis showed increase in crystallite size by 16.05% in treated ONP as compared to control. However, the treated MNP showed decrease in crystallite size by 16.17% as compared to control. The treated TBP showed increase in crystallite size by 5.20% as compared to control. DSC of treated MNP exhibited increase in melting temperature with respect to control, which may be correlated to higher thermal stability of treated sample. However, the treated TBP exhibited no significant change in melting temperature with respect to control. TGA analysis of treated ONP and TBP showed an increase in maximum thermal decomposition temperature (T max ) as compared to control. However, the treated MNP showed slight decrease in T max in comparison with control sample. Surface area analysis of treated ONP showed decrease in surface area by 65.5%. However, surface area was increased by 40.7% in treated MNP as compared to control. These results suggest that biofield treatment has significant effect on physical and thermal properties of ONP, MNP and TBP.

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Simultaneous sorption of 4-nitrophenol and 2-nitrophenol on a hybrid geocomposite based on surfactant-modified pillared-clay and activated carbon

Cited by 67 publications

References 47 publications

Adsorption isotherm, kinetic and mechanism studies of 2-nitrophenol on sedimentary phosphate

Adsorption isotherm, kinetic and mechanism studies of 2-nitrophenol on sedimentary phosphate

A wheat straw cellulose based semi-IPN hydrogel reactor for metal nanoparticles preparation and catalytic reduction of 4-nitrophenol

Biofield Treatment: An Effective Strategy for Modulating the Physical and Thermal Properties of O-Nitrophenol, M-Nitrophenol and P-Tertiary Butyl Phenol

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