Adsorption characteristics of Cu(II) and Zn(II) by nano-alumina material synthesized by the sol-gel method in batch mode

Wang, Renyu; Zhang, Wei; Zhang, Liying; Tian, Hua; Tang, Guping; Peng, Xiaoqian; Hao, Ming; Zuo, Qiting

doi:10.1007/s11356-018-3453-5

Cited by 34 publications

(10 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As mentioned, the positions of the FTIR absorption peaks obtained for a synthesized sample, are a fingerprint being used to determine the chemical bonds and phase of the products. γ-phase alumina has two well-known FTIR absorption peaks almost at 840, 558 cm −1 which can be a measure of the alumina formation in the γ-phase 38 . Therefore, the FTIR spectra of the alumina samples in the fingerprint range of 400 to 1350 cm −1 were deconvoluted to the Gaussian components by using Origin pro software to find the precise position of the peaks for the samples.…”

Section: Resultsmentioning

confidence: 99%

High specific surface area γ-Al2O3 nanoparticles synthesized by facile and low-cost co-precipitation method

Gholizadeh

Aliannezhadi

Ghominejad

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Alumina (Al2O3) nanoparticles (NPs) are particularly adsorbent NPs with a high specific surface area (SSA) that may well be utilized to clean water. In this study, pure γ-alumina NPs are successfully synthesized by the co-precipitation method, and the effect of ammonium bicarbonate concentration on the synthesized NPs is studied to find the optimum concentration to provide the highest capacity of copper ions removal from water. The results declare that spherical alumina NPs with average diameters in the range of 19–23 nm are formed with different concentrations of precipitation agent, and the concentration has no significant effect on the morphology of NPs. Furthermore, the precipitating agent concentration influences the optical characteristics of the produced alumina NPs, and the bandgap energies of the samples vary between 4.24 and 5.05 eV. The most important impact of precipitating agent concentrations reflects in their SSA and capacity for copper ion removal Ultra-high SSA = 317 m2/g, and the highest copper removal at the adsorbate concentration of 184 mg/L is achieved in an alkalis solution followed by a neutral solution. However, admirable copper removal of 98.2% is even achieved in acidic solutions with 0.9 g/L of the alumina NPs synthesized at a given concentration of ammonium bicarbonate, so this sample can be a good candidate for Cu ions removal from acidic wastewater.

show abstract

Section: Resultsmentioning

confidence: 99%

High specific surface area γ-Al2O3 nanoparticles synthesized by facile and low-cost co-precipitation method

Gholizadeh

Aliannezhadi

Ghominejad

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…For example, Ren. yu Wang et al have synthesized alumina nanostructures by sol-gel method and used it to absorb copper metal contaminants from water 43 . The maximum adsorption capacity of alumina nanoparticles for copper metal was 88.7 mg/L (about 65%), which indicates the g reater capacity of sample RA-0.6 for Cu 2+ removal from water.…”

Section: Copper Adsorption Experimentsmentioning

confidence: 99%

High Specific Surface Area γ-Al2O3 Nanoparticles Synthesized by Facile and Low-cost Co-precipitation Method

Gholizadeh

Aliannezhadi

Ghominejad

et al. 2022

Preprint

View full text Add to dashboard Cite

Alumina (Al2O3) nanoparticles (NPs) are particularly adsorbent NPs with a high specific surface area (SSA) that may well be utilized to clean water. In this study, pure γ-alumina NPs are successfully synthesized by the co-precipitation method, and the effect of ammonium bicarbonate concentration on the synthesized NPs is studied to find the optimum concentration to provide the highest capacity of copper ions removal from water. The results declare that spherical alumina NPs with average diameters in the range of 19–23 nm are formed with different concentrations of precipitation agent, and the concentration has no significant effect on the morphology of NPs. Furthermore, the precipitating agent concentration influences the optical characteristics of the produced alumina NPs, and the bandgap energies of the samples vary between 4.24 and 5.05 eV. The most important impact of precipitating agent concentrations reflects in their SSA and the capacity of copper ion removal. Ultra-high SSA = 317 m2/g and the highest copper removal are achieved in an alkalis solution followed by a neutral solution. However, admirable copper removal of 98.2% is even achieved in acidic solutions with a given concentration of ammonium bicarbonate, so this sample can be a good candidate for Cu ions removal from acidic water.

show abstract

“…In addition to the adsorption rate, the adsorption capacity is also an important index for the adsorbent's large-scale application in the industry. The removal data of Cr(VI) by Mxene-CS were fitted by using two typical isothermal adsorption models (Langmuir and Freundlich) to analyze the experiment data as shown in Equations ( 5) and ( 6) [2].…”

Section: Adsorption Isothermmentioning

confidence: 99%

“…Currently, with more rapid development of industrialization, more heavy metals in wastewater are derived from various industrial processes, such as mining, smelting, electroplating, tanning, and electrochemistry [1,2]. The heavy metals in wastewater would inevitably cause serious damage to the surface water, groundwater, and soil without proper treatment [2]. Among the reported heavy metals in wastewater, Cr(VI) is one of the most frequently detected in the natural environment, which was mainly derived from the chromium salt production and consumption process.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of A Novel MXene–CS Composite Applied in Treatment of Cr(VI) Contaminated Aqueous Solution

Wan

Geng

et al. 2021

Processes

Self Cite

View full text Add to dashboard Cite

The considerable amount of Cr(VI) pollutants in the aqueous environment is a significant environmental concern that cannot be ignored. A series of novel Mxene–CS inorganic–organic composite nanomaterials synthesized by using the solution reaction method was applied to treat the Cr(VI) contaminated water. The Mxene–CS composites were characterized through SEM (scanning electron microscope), XRD (X–ray diffraction), XPS (X–ray photoelectron spectroscopy), and FTIR (Fourier transform infrared). The XRD patterns (observed at 2θ of 18.1°, 35.8°, 41.5°, and 60.1°) and the FT–IR spectra (-NH2 group for 1635 and 1517 cm−1, and -OH group for 3482 cm−1) illustrated that CS was successfully loaded on the Mxene. The effects of solution pH, the dosage of Mxene–CS, and duration time on the adsorption of Cr(VI) by synthesized Mxene–CS were investigated. The removal efficiency of Cr(VI) was increased from 12.9% to 40.5% with Mxene–CS dosage ranging from 0.02 to 0.12 g/L. The adsorption process could be well fitted by the pseudo–second–order kinetics model, indicating chemisorption occurred. The Langmuir isotherm model could be better to describe the process with a maximum adsorption capacity of 43.1 mg/g. The prepared novel Mxene–CS composite was considered as an alternative for adsorption of heavy metals from wastewater.

show abstract

Adsorption characteristics of Cu(II) and Zn(II) by nano-alumina material synthesized by the sol-gel method in batch mode

Cited by 34 publications

References 52 publications

High specific surface area γ-Al2O3 nanoparticles synthesized by facile and low-cost co-precipitation method

High specific surface area γ-Al2O3 nanoparticles synthesized by facile and low-cost co-precipitation method

High Specific Surface Area γ-Al2O3 Nanoparticles Synthesized by Facile and Low-cost Co-precipitation Method

Green Synthesis of A Novel MXene–CS Composite Applied in Treatment of Cr(VI) Contaminated Aqueous Solution

Contact Info

Product

Resources

About