Preparation, characterization and utilization of polyacrylic acid–kaolin composite in the removal of heavy metals from water

Barbooti, Mahmood M.; Al-Dabbagh, Balqees M.; Hilal, Raghad Hamid

doi:10.1007/s13762-018-2067-2

Cited by 20 publications

(10 citation statements)

References 35 publications

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“…Co 2+ :ZnSe nanocrystals with mid-infrared emission properties of ~3.5μm at 293K were obtained by a one-step method using thioglycolic acid as a stabilizer. In addition, Fe 2+ :ZnSe quantum dots were prepared using the hydrothermal microemulsion composition, and the mid-infrared emission in the 3.5-4.5μm band was obtained at low temperature of 35-200 K. environment and low cost [7][8] . In particular, the hydrothermal method is the best choice among chemical methods, because it can produce nanoscale particles with narrow particle size distribution and low accumulation, and has the advantages of low cost, simple operation, environmental friendliness, low toxicity, and simple process.…”

Section: Properties and Preparation Methods Of Tellurium Bismuthatementioning

confidence: 99%

Preparation and Properties of a Kind of Tellurium Bismuthate Mid-infrared Luminescent Composite Glass

2022

IJFET

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The band of infrared luminescence includes atmospheric windows of 1-3μm, 3-5μm, and 8-14μm, covering many important characteristic spectra. Therefore, the luminescent materials in this band are used in biomedical, satellite remote sensing, weapon guidance, industrial processing, Weapon penetration and other fields have broad application prospects. In this paper, the preparation method of doped bismuth telluride composite glass material was studied, and the luminescence properties of infrared luminescent composite glass in the 2.7μm band mid-infrared laser in the matrix material. In this paper, the TeO 2 -Nb 2 O 5 -Bi 2 O 3 glass system was selected as the matrix glass to prepare the tellurate infrared emitting composite glass. The Bi3.20Te0.80O6.40 crystal is a three-dimensional growth method, and the nucleation and growth process of the glass-ceramic is a diffusion mechanism, which belongs to the crystallization behavior mainly controlled by diffusion. Transparent bismuth telluride composite glasses with different doping concentrations of rare earth ions were prepared by a two-step heat treatment method. The infrared luminescent composite glass prepared in this paper has strong penetrating ability to smoke and atmosphere, good transmission confidentiality and low loss, and has important application prospects in radar systems, infrared remote sensing, laser ranging and other fields. The final results of the study show that, by comparing the melting and purity of chemical reagents, it can be seen that the melting time consumed by bismuth oxide is 45 minutes, and a purity of 95.5% can be obtained. The time is shorter, which is conducive to reducing a certain cost.

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Section: Properties and Preparation Methods Of Tellurium Bismuthatementioning

confidence: 99%

Preparation and Properties of a Kind of Tellurium Bismuthate Mid-infrared Luminescent Composite Glass

2022

IJFET

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“…Another limitation of using clay minerals in a fixed-bed system is the poor water flowability of some clay minerals, especially in case of the swellable 2:1 type (one alumina octahedron is sandwiched between two silica tetrahedral structures) clay minerals such as montmorillonite [167,168]. Therefore, it seems advisable to combine them in composites with other materials having a porous structure that can perform the function of a support or host, e.g., polymers or BCs [166,[169][170][171][172].…”

Section: Biochar-clay Compositesmentioning

confidence: 99%

Engineered biochar – A sustainable solution for the removal of antibiotics from water

Krasucka

Pan

et al. 2021

Chemical Engineering Journal

282

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Antibiotic contamination and the spread of antimicrobial resistant bacteria are global environmental issues. Given the growing consumption of antibiotics, it is crucial to reduce their presence in the environment. Adsorption is one of the most efficient methods for removing contaminants from water and wastewater. For this process to be effective, it is of key importance to identify adsorption mechanisms that allow an efficient and selective adsorbent to be chosen.Carbon-based materials (including activated carbon, biochar and black carbon) are typically used for the adsorptive removal of antibiotics. To enhance the efficiency of adsorption of pharmaceuticals, engineered biochars (physically, chemically and biologically modified biochar) and their composites have attracted increasing interests. Biochar-based sorbents can be produced from various feedstocks, including waste products. The use of "green", low cost or sustainable biochar for contaminant sorption yields economic and environmental benefits.Moreover, this is in line with global trends in creating a circular economy and sustainable development. This paper collates the most recent data on the consumption of antibiotics, their related environmental contamination, and their removal using biochar-based materials. Special attention is paid to the newly emerging approaches of biochar modification and biochar composites in relation to the antibiotic removal from water.

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“…Experimental design (Statistica) was used to study the effects of experimental variables (operating parameters), at various levels simultaneously on the adsorption of the selected antibiotics on the basis of statistical treatment to determine the optimum conditions (36). The details of the approach were recently described regarding the removal of nickel ions from water by adsorption on certain composite (37). It saves time and efforts and at the same time measures the precision of the process.…”

Section: Surface Area Determinationmentioning

confidence: 99%

Removal of Amoxicillin from Water by Adsorption on Water Treatment Residues

Barbooti

Zahraw

2020

Baghdad Sci.J

Self Cite

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The presence of residual antibiotics in water results in the development of antibiotics resistant genes. The available wastewater treatment systems are not capable of removing such antibiotics from sewage. Thus, antibiotics need to be removed before the discharge of wastewater. Adsorption is among the promising techniques for the wastewater treatment to aid the removal of a wide range of organic and inorganic pollutants. The present work is a contribution to the search for an economical method for the removal of low concentrations of amoxicillin (AMX) from water by adsorption on water treatment residue, WTR, taken from a local drinking water facility. The chemical composition and the adsorptive characteristics of the material were first evaluated using energy dispersive spectroscopy, EDS, and sorption of methylene blue, respectively. The porous character of the sorbent was modified by ignition. The application of the WTR for the adsorption of AMX was studied under various operating conditions including sorbent dosage, 2-20 g/L at room temperature; contact time 30-240 min.; and initial concentration range of the antibiotic, 0.00004-0.00012 M. facility. To aid the experimental work, statistical software was employed to design the experiments and evaluation of the results. Graphical and mathematical relationships have been established for the adsorption efficiency with the operating conditions. The adsorption capacity was calculated from the plot of the adsorbed drug against the sorbent content and found to be 19.966 µmol/g WTR. The sorption efficiency depends on the initial concentration and being better at low concentration (0.00004 M) and equilibrium time (within 100 mins.). The optimum conditions of the adsorption are: AMX Concentration, 0.00004 M; Contact time. The optimum conditions of the adsorption are: AMX Concentration, 0.00004 M; Contact time, 90 min., and WTR content of 15.5 g/L to give removal efficiency of 89.2%.

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Preparation, characterization and utilization of polyacrylic acid–kaolin composite in the removal of heavy metals from water

Cited by 20 publications

References 35 publications

Preparation and Properties of a Kind of Tellurium Bismuthate Mid-infrared Luminescent Composite Glass

Preparation and Properties of a Kind of Tellurium Bismuthate Mid-infrared Luminescent Composite Glass

Engineered biochar – A sustainable solution for the removal of antibiotics from water

Removal of Amoxicillin from Water by Adsorption on Water Treatment Residues

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