Effective removal of Pb(II) using magnetic Co0.6Fe2.4O4 micro-particles as the adsorbent: Synthesis and study on the kinetic and thermodynamic behaviors for its adsorption

Duan, Suqing; Tang, Rongfeng; Xue, Zhiwen; Zhang, Xianxi; Zhao, Yueying; Zhang, Wen; Zhang, Mengjie; Wang, Bingquan; Zeng, Suyuan; Sun, Dezhi

doi:10.1016/j.colsurfa.2015.01.029

Cited by 104 publications

(41 citation statements)

References 62 publications

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“…Lead (Pb) and cadmium (Cd), widely generated from battery manufacturing, mining operations, tanneries, petroleum refining, ceramics, metal finishing, explosive manufacturing, electroplating, photography, pigments and painting [2][3][4] have been listed as Priority Pollutants by the US Environmental Protection Agency (USEPA) due to their bioaccumulation in ecosystems and persistence in nature. Long term exposure to Pb(II) can damage the central nervous system, reproductive system, hemopoiesis, heart and blood vessels, kidney and liver of human beings [5].…”

Section: Introductionmentioning

confidence: 99%

Recycling flue gas desulphurization (FGD) gypsum for removal of Pb(II) and Cd(II) from wastewater

Yan

Qiao

Sun

et al. 2015

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Recycling flue gas desulphurization (FGD) gypsum for removal of Pb(II) and Cd(II) from wastewater

Yan

Qiao

Sun

et al. 2015

Journal of Colloid and Interface Science

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“…The linear lines of the second section as shown in Figure 4(a)-(c) did not intersect the origin due to the difference in the initial and final mass transfer rate of adsorption [23][24][25]. This implied that the rate of adsorption might be controlled by both IPD and film diffusion [24,[26][27]. The actual mechanisms that controlled the adsorption rate were further evaluated through Boyd plots as shown in Figure 5.…”

Section: Adsorption Mechanismmentioning

confidence: 99%

Adsorption of colour, TSS and COD from palm oil mill effluent (POME) using acid-washed coconut shell activated carbon: Kinetic and mechanism studies

2016

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Abstract. The disposal of palm oil mill effluent (POME) without proper treatment before being discharged into natural water sources has become undesirable because of high concentration of suspended solid (SS), oil and grease (O&G), chemical oxygen demand (COD) and biological oxygen demand (BOD). This study investigated the feasibility of removing colour, total suspended solid (TSS) and COD using acid-washed coconut shell based activated carbon (CSAC) through the evaluation of the adsorption uptake as well as the adsorption kinetics and mechanism. The percentage removal of colour, TSS and COD from POME onto CSAC were 61%, 39%, 66%, respectively achieved within 48 hours of contact time. The kinetic models studied were pseudo-first-order (PFO), pseudo-secondorder (PSO), and Elovich models. The intra-particle diffusion (IPD) model was studied to interpret the adsorption diffusion mechanism. The adsorption of colour, TSS and COD onto CSAC were best interpreted by the PSO model, and well fitted by the Elovich model. The IPD and Boyd plots indicated that IPD and film diffusion controlled the adsorption of colour, TSS and COD onto the CSAC.

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“…Magnetic particles and nanomaterials could be used to adsorb contaminants (such as MnFe 2 O 4 azo dye) from aqueous or gaseous effluents and after adsorption process; the adsorbent could be easily separated from the medium [23]. Several materials such as magnetic porous ferro-spinel MnFe 2 O 4 [24], magnetic Co 0.6 Fe 2.4 O 4 micro-particles as [25] and nano-magnetic iron oxide-nanosilicon oxide have been used and evaluated to removal of heavy metals [26].…”

Section: Introductionmentioning

confidence: 99%

Removal/separation of Co(II) ion from environmental sample solutions by MnFe2O4/bentonite nanocomposite as a magnetic nanomaterial

Karimi¹,

Rahmani²,

Hosseini³

et al. 2017

Desalination and Water Treatment

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a b s t r ac tMnFe 2 O 4 /bentonite nanocomposite was synthesized by chemical co-precipitation method. The prepared nanocomposite was characterized by X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and scanning electron microscopy (SEM) techniques. The XRD results indicated the montmorillonite associated with quartz phases in the structure of MnFe 2 O 4 /bentonite nanocomposite synthesized. VSM was carried out to characterize the magnetic properties of the nanocomposite prepared. SEM images of the nanoadsorbent showed that nanocomposite has a uniform structure in the range of 50-200 nm in diameter. Adsorption characteristic of the synthesized nanocomposite was examined to evaluate adsorption of the cobalt(II) ion from aqueous sample solutions and at pH range of 4.5-5.0 the maximum amount of cobalt(II) ion was adsorbed. The maximum adsorption capacity of cobalt(II) was determined to be 22.42 mg g −1 . The results showed that nanocomposite has catalytic activity higher than the bentonite itself. The results obtained from the adsorption kinetic studies showed that adsorption behavior of cobalt(II) ion onto nanoadsorbent conformed to Langmuir isotherm model and pseudo-second-order kinetic.

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Effective removal of Pb(II) using magnetic Co0.6Fe2.4O4 micro-particles as the adsorbent: Synthesis and study on the kinetic and thermodynamic behaviors for its adsorption

Cited by 104 publications

References 62 publications

Recycling flue gas desulphurization (FGD) gypsum for removal of Pb(II) and Cd(II) from wastewater

Recycling flue gas desulphurization (FGD) gypsum for removal of Pb(II) and Cd(II) from wastewater

Adsorption of colour, TSS and COD from palm oil mill effluent (POME) using acid-washed coconut shell activated carbon: Kinetic and mechanism studies

Removal/separation of Co(II) ion from environmental sample solutions by MnFe2O4/bentonite nanocomposite as a magnetic nanomaterial

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