Textile dye removal from aqueous solutions using cheap MgO nanomaterials: Adsorption kinetics, isotherm studies and thermodynamics

Mahmoud, Hala R.; Ibrahim, Shaimaa M.; El-Molla, Sahar A.

doi:10.1016/j.apt.2015.12.006

Cited by 119 publications

(62 citation statements)

References 40 publications

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“…The increase was from 7 mg/g at 5 min to 30.55 mg/g at 30 min. This is in agreement with earlier reports (Amuda et al 2014;Mahmoud et al 2015) where the noticed action could be due to the available surface sites before equilibrium was reached.…”

Section: Effect Of Contact Timesupporting

confidence: 83%

“…The maximum monolayer adsorption (q max ) obtained from Langmuir plot is 59.85 mg/g and when compared with previously published reports in other studies (Table 2), it shows that AgNPs is a relatively better adsorbent in terms of performance than some previously used adsorbents (Majumdar et al 2015;Das et al 2006;Satapathy et al 2013;Amuda et al 2014;Inyinbor et al 2015Inyinbor et al , 2016aMahmoud et al 2015;Shen et al 2015). K f and n were calculated from Freundlich isotherm plot with the value of n (1.647) greater than 1 indicating a favourable adsorption of Rh-B on AgNPs and the chemical nature of adsorption (Foo and Hameed 2010;Amuda et al 2014).…”

Section: Effect Of Temperaturesupporting

confidence: 49%

“…16 and 17 is presented in Table 4. The magnitude of activation energy gives idea about the type of adsorption, which mainly can either be physiosorption or chemosorption (Mahmoud et al 2015).…”

Section: Activation Energy and Adsorption Thermodynamicmentioning

confidence: 99%

“…However, it is carcinogenic causing hypothalamic cell apoptosis leading to hormonal imbalances. It has also been reported to cause eyes, skin, and respiratory tract irritations (Satapathy et al 2013;Pal and Deb 2014;Bhattacharyya et al 2014; 32 Page 2 of 12 Sulistina et al 2014;Shen et al 2015;Mahmoud et al 2015;Huang et al 2016). Wastewater containing Rh-B, therefore, needs to be effectively, efficiently and qualitatively treated before being discharged into the environment (Inyinbor et al 2015(Inyinbor et al , 2016a.…”

Section: Introductionmentioning

confidence: 99%

“…Multi-walled carbon nanotube (Yang and Xing 2010), MgO (Li et al 2012;Mahmoud et al 2015), chitosan-zinc oxide (Salehi et al 2010), zero-valent iron (Satapanajaru et al 2011), silver (Satapathy et al 2013), gold (Xu, 2010), NiO (Samiey and Farhadi 2013), TiO 2 (Hsiao et al 2014;Lyu et al 2014) nanoparticles have been employed in wastewater purification and have proved to be faster in action and more effective in performance. Also, catalytic degradation of dyes has been achieved using nanoparticles (Bogireddy et al 2015;Han et al 2013;Kumari and Philip 2015;Lateef et al 2016a, b, c;Ojo et al 2016;Oladipo et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

et al. 2018

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This study has investigated the adsorption of Rhodamine B (Rh-B) dye on novel biosynthesized silver nanoparticles (AgNPs) from cobweb. The effects of contact time, initial pH, initial dye concentration, adsorbent dosage and temperature were studied on the removal of Rh-B and they significantly affected its uptake. Adsorption isotherms were evaluated using Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models. The adsorption process was best described by Langmuir isotherm with R 2 of 0.9901, indicating monolayer adsorption. The maximum adsorption capacity (q max ) of 59.85 mg/g showed that it has relatively high performance, while adsorption intensity showed a favourable adsorption process. Pseudo-secondorder kinetics fitted best the rate of adsorption and intra-particle diffusion revealed both surface adsorption and intra-particle diffusion-controlled adsorption process. Negative values of thermodynamic parameters (∆H°, ∆S° and ∆G°) indicated an exothermic and spontaneous adsorption process. The mean sorption energy (E) and activation energy (E a ) suggested the uptake of Rh-B onto AgNPs was chemical in nature (chemosorption).

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Section: Effect Of Contact Timesupporting

confidence: 83%

Section: Effect Of Temperaturesupporting

confidence: 49%

Section: Activation Energy and Adsorption Thermodynamicmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

et al. 2018

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Application of Nanomaterials in the Remediation of Textile Effluents from Aqueous Solutions

Uddin

Rehman

2018

Nanomaterials in the Wet Processing of Textiles

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High porous electrospun poly(ε‐caprolactone)/gelatin/MgO scaffolds preseeded with endometrial stem cells promote tissue regeneration in full‐thickness skin wounds: An in vivo study

et al. 2020

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In the current study, electrospun poly(ε‐caprolactone)‐gelatin (PCL‐Gel) fibrous scaffolds containing magnesium oxide (MgO) particles and preseeded with human endometrial stem cells (hEnSCs) were developed to use as wound care material in skin tissue engineering applications. Electrospun fibers were fabricated using PCL‐Gel (1:1 [wt/wt]) with different concentrations of MgO particles (1, 2, and 4 wt%). The fibrous scaffolds were evaluated regarding their microstructure, mechanical properties, surface wettability, and in vitro and in vivo performances. The full‐thickness excisional wound model was used to evaluate the in vivo wound healing ability of the fabricated scaffolds. Our findings confirmed that the wounds covered with PCL‐Gel fibrous scaffolds containing 2 wt% MgO and preseeded with hEnSCs have nearly 79% wound closure ability while sterile gauze showed 11% of wound size reduction. Our results can be employed for biomaterials aimed at the healing of full‐thickness skin wounds.

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Textile dye removal from aqueous solutions using cheap MgO nanomaterials: Adsorption kinetics, isotherm studies and thermodynamics

Cited by 119 publications

References 40 publications

Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

Application of Nanomaterials in the Remediation of Textile Effluents from Aqueous Solutions

High porous electrospun poly(ε‐caprolactone)/gelatin/MgO scaffolds preseeded with endometrial stem cells promote tissue regeneration in full‐thickness skin wounds: An in vivo study

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