Preparation a novel magnetic natural nano zeolite for preconcentration of cadmium and its determination by ETAAS

Naghizadeh, Matin; Taher, Mohammad Ali; Behzadi, Mansoureh; Moghaddam, Firouzeh Hassani

doi:10.1016/j.enmm.2017.10.001

Cited by 9 publications

(5 citation statements)

References 15 publications

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“…On the basis of the results of the work (Nizami et al, 2016), in the range of peak 20° to 30° recorded at 2θ there is an indication of zeolite from alumina silicate mineral in the presence of other elements such as Mg, Fe and Na, etc. (Naghizadeh et al, 2017). After thermal activation, the natural zeolite showed significant changes from the XRD patterns.…”

Section: Zeolite Characterizationmentioning

confidence: 97%

Valorization of Palm Empty Fruit Bunch Waste for Syngas Production Through Gasification

Aprianti¹,

Faizal²,

Said³

et al. 2020

J. Ecol. Eng.

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The rapid progress of the CPO industry in Indonesia is not in line with good waste management and utilization. Palm empty fruit bunch, as the first waste from the CPO production process in Indonesia, is mostly piled on the ground. Palm empty fruit bunch must be processed to reduce pollution and increase its use-value. This study aimed to convert oil palm empty fruit bunches solid waste through the gasification process using Indonesia's natural zeolite into synthesis gas. Gasification takes place at 350-550°C by added 12.5% wt zeolite using a modified updraft gasifier. Good results were achieved at 550°C with a gas composition of 22.64% vol CH 4 , 29.22% vol CO, and 3.4% vol H 2. The gasification efficiency is evaluated through carbon conversion efficiency (CCE) and cold gas efficiency (CGE). Both the highest CCE and CGE were found at 550°C by 95.74% and 81.65% respectively. The results showed that the gasification temperature has the greatest influence in driving higher carbon conversion to syngas and palm empty fruit bunches are very suitable for conversion into environmentally friendly syngas in the CPO industry.

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Section: Zeolite Characterizationmentioning

confidence: 97%

Valorization of Palm Empty Fruit Bunch Waste for Syngas Production Through Gasification

Aprianti¹,

Faizal²,

Said³

et al. 2020

J. Ecol. Eng.

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“…Among other adsorbents reported in the literature, nanomaterials have found great attention in recent years due to their high surface area and large adsorption area 22 . They are highly effective sorbents that can be applied for the pre-concentration of a wide range of analytes 23 . Nanomaterials such as layered double hydroxide (LDH) have received great attention in recent years due to their unique physical and chemical properties 24 .…”

Section: Introductionmentioning

confidence: 99%

Magnetic Fe3O4@Mg/Al-layered double hydroxide adsorbent for preconcentration of trace metals in water matrices

Nyaba

Munonde

Mpupa

et al. 2021

Sci Rep

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A magnetic Fe3O4@MgAl-layered double hydroxide (MLDH) nanocomposite was successfully synthesized and applied as an effective adsorbent for preconcentration of trace As(III), Cd(II), Cr(III), Co(II), Ni(II), and Pb(II) ions from complex matrices. The quantification of the analytes was achieved using the inductively coupled plasma optical emission spectrometry (ICP-OES) technique. The nanocomposite was then characterized using BET, FTIR, SEM, and EDS. Due to its high adsorption surface area, compared to traditional metal oxide-based adsorbents, MLDH nanocomposite exhibited high extraction efficiency. Several experimental parameters controlling the preconcentration of the trace metals were optimized using response surface methodology based on central composite design. Under optimum conditions, the linearity ranged from 0.1 to 500 µg L−1 and the correlation of coefficients (R2) were higher than 0.999. The limits of detection (LODs) and quantification (LOQs) were 0.11–0.22 µg L−1 and 0.35–0.73 µg L−1, respectively. The intra-day (n = 10) and inter-day precisions (n = 5 working days) expressed in the form of percent relative standard deviations (%RSDs) were below 5%. The proposed method was successfully applied for the analysis of the As(III), Cd(II), Cr(III), Co(II), Ni(II), and Pb(II) ions in different environmental water samples.

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“…Zeolites, which are microporous crystalline aluminosilicates, are good MDSPE‐sorbent candidate due to their simple modification to obtain the desired physical properties (i.e., magnetism). Recently, zeolite‐based magnetic composites have been proposed for organic‐compound and metal extraction from environmental, biological, and food samples. Furthermore, the external surface of zeolites can easily be modified with functional groups, thus altering zeolite adsorption properties.…”

Section: Introductionmentioning

confidence: 99%

Determination of four bisphenols in water and urine samples by magnetic dispersive solid‐phase extraction using a modified zeolite/iron oxide composite prior to liquid chromatography diode array detection

Baile

Medina

Vidal

et al. 2020

J of Separation Science

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A novel approach is presented to determine four bisphenols in water and urine samples, employing magnetic dispersive solid-phase extraction combined with liquid chromatography and diode array detection. A modified zeolite-based magnetic composite was used as an efficient sorbent, combining the advantages of magnetic materials with the remarkable properties of zeolites. A multivariate optimization design was employed to optimize some experimental factors affecting magnetic dispersive solid-phase extraction. The method was evaluated under optimized conditions (i.e., amount of sorbent, 50 mg; sample pH, unadjusted; NaCl concentration, 1.25%; extraction and elution time, 2 min; eluent solvent, ethanol; eluent solvent volume, 400 μL), obtaining good linearity with correlation coefficients ranging between 0.995 and 0.999 (N = 5) (from 2 to 250 μg/L for bisphenol A, bisphenol AP, and bisphenol P and from 5 to 250 μg/L for bisphenol AF). Method repeatability was assessed obtaining coefficients of variation between 3 and 11% (n = 6). Finally, the method was applied to spiked real samples, obtaining for water samples relative recoveries between 83 and 105%, and for urine samples between 81 and 108% for bisphenol A, bisphenol AP, and bisphenol AF, and between 47 and 59% for bisphenol P. K E Y W O R D Sbisphenols, magnetic dispersive solid-phase extraction, urine samples, water samples, zeolites 1808

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Preparation a novel magnetic natural nano zeolite for preconcentration of cadmium and its determination by ETAAS

Cited by 9 publications

References 15 publications

Valorization of Palm Empty Fruit Bunch Waste for Syngas Production Through Gasification

Valorization of Palm Empty Fruit Bunch Waste for Syngas Production Through Gasification

Magnetic Fe3O4@Mg/Al-layered double hydroxide adsorbent for preconcentration of trace metals in water matrices

Determination of four bisphenols in water and urine samples by magnetic dispersive solid‐phase extraction using a modified zeolite/iron oxide composite prior to liquid chromatography diode array detection

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