Interfacial study of surface-modified ZrO2 nanoparticles with thioctic acid for the selective recovery of palladium and gold from electronic industrial wastewater

This study aimed to synthesize a new resin through immobilization of the 4,4′-((1Z,11Z)-2,5,8,11-tetraazadodeca-1,8-diene-1,11-diyl)diphenol (TRA) onto silica gel modified (Si-CPTS) with 3-chloropropyltrimethoxy silane (CPTS) and its application for the removal of chromium(VI) ions from aqueous solution as well as from industrial wastewater. The same applications were also made for industrial wastewater vapor. The objective purpose of this work was to investigate the influences of concentration, temperature, amount of metal ions, contact time and pH to sorption on the surface modified by TRA (Si-TRA). The newly synthesized Si-TRA is characterized with scanning electron microscope and elemental analysis and Cr(VI) heavy metal ions were used as sorbate. The sorption of Cr(VI) ion was evaluated by using batch methods. The value of adsorption of Cr(VI) ion was detected with an atomic absorption spectrometer. The maximum adsorption capacities and isotherm parameters were calculated from the Langmuir, Freundlich, and Dubinin–Radushkevich isotherm equations. Thermodynamic parameters such as free energy (ΔG°), entropy (ΔS°), and enthalpy (ΔH°) were also calculated from the sorption results. The modified structure used as adsorbent was successfully employed in the removal of Cr(VI) ions from the samples of industrial wastewater.

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The Application of Modified Natural Polymers in Toxicant Dye Compounds Wastewater: A Review

Water ◽

10.3390/w12072032 ◽

2020 ◽

Vol 12 (7) ◽

pp. 2032

Author(s):

Siti Aisyah Ishak ◽

Mohamad Fared Murshed ◽

Hazizan Md Akil ◽

Norli Ismail ◽

Siti Zalifah Md Rasib ◽

...

Keyword(s):

Industrial Wastewater ◽

Dye Removal ◽

Skin Diseases ◽

Dye Wastewater ◽

Natural Polymers ◽

Physical Processes ◽

Respiratory Problems ◽

Modified Polymers ◽

Surface Modified ◽

Dye Industry

The utilization of various types of natural and modified polymers for removing toxicant dyes in wastewater generated by the dye industry is reviewed in this article. Dye wastewater contains large amounts of metals, surfactants, and organic matter, which have adverse effects on human health, potentially causing skin diseases and respiratory problems. The removal of dyes from wastewaters through chemical and physical processes has been addressed by many researchers. Currently, the use of natural and modified polymers for the removal of dyes from wastewater is becoming more common. Although modified polymers are preferred for the removal of dyes, due to their biodegradability and non-toxic nature, large amounts of polymers are required, resulting in higher costs. Surface-modified polymers are more effective for the removal of dyes from the wastewater. A survey of 80 recently published papers demonstrates that modified polymers have outstanding dye removal capabilities, and thus have a high applicability in industrial wastewater treatment.

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New surface-modified sorbent layer for the analysis of toxic metals in seawater and industrial wastewater

Journal of Chromatography A ◽

10.1016/0021-9673(93)80111-k ◽

1993 ◽

Vol 642 (1-2) ◽

pp. 455-458 ◽

Cited By ~ 2

Author(s):

Ali Mohammad ◽

Mohammad Abdul Majid Khan

Keyword(s):

Toxic Metals ◽

Industrial Wastewater ◽

Sorbent Layer ◽

Surface Modified

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A clean process for selective recovery of copper from industrial wastewater by extraction-precipitation with p-tert-octyl phenoxy acetic acid

Journal of Environmental Management ◽

10.1016/j.jenvman.2021.114164 ◽

2022 ◽

Vol 304 ◽

pp. 114164

Author(s):

Hepeng Zhang ◽

Jinqing Chen ◽

Shuainan Ni ◽

Chao Bie ◽

Hailan Zhi ◽

...

Keyword(s):

Acetic Acid ◽

Industrial Wastewater ◽

Selective Recovery ◽

Phenoxy Acetic Acid

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Selective recovery of Ag(I) from industrial wastewater using zeolite imidazolate framework-8: performance and mechanisms

Environmental Science and Pollution Research ◽

10.1007/s11356-019-04674-5 ◽

2019 ◽

Vol 26 (14) ◽

pp. 14214-14225 ◽

Cited By ~ 4

Author(s):

Chenghong Hu ◽

Shuangjian Kang ◽

Biquan Xiong ◽

Shuxian Zhou ◽

Kewen Tang

Keyword(s):

Industrial Wastewater ◽

Selective Recovery

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Surface-modified ZrO2 nanoparticles with caffeic acid: Characterization and in vitro evaluation of biosafety for placental cells

Chemico-Biological Interactions ◽

10.1016/j.cbi.2021.109618 ◽

2021 ◽

pp. 109618

Author(s):

Vesna Lazić ◽

Andrea Pirković ◽

Dušan Sredojević ◽

Jelena Marković ◽

Jelena Papan ◽

...

Keyword(s):

Caffeic Acid ◽

Zro2 Nanoparticles ◽

In Vitro Evaluation ◽

Placental Cells ◽

Surface Modified

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Analytical Electron Microscopy of Surface-Modified Ceramics

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100118291 ◽

1985 ◽

Vol 43 ◽

pp. 276-279

Author(s):

P. S. Sklad

Keyword(s):

Electron Microscopy ◽

Analytical Electron Microscopy ◽

Theoretical Models ◽

Ceramic Materials ◽

Solute Concentration ◽

Second Phase ◽

Analytical Electron ◽

Implantation Techniques ◽

Lattice Damage ◽

Surface Modified

Over the past several years, it has become increasingly evident that materials for proposed advanced energy systems will be required to operate at high temperatures and in aggressive environments. These constraints make structural ceramics attractive materials for these systems. However it is well known that the condition of the specimen surface of ceramic materials is often critical in controlling properties such as fracture toughness, oxidation resistance, and wear resistance. Ion implantation techniques offer the potential of overcoming some of the surface related limitations.While the effects of implantation on surface sensitive properties may be measured indpendently, it is important to understand the microstructural evolution leading to these changes. Analytical electron microscopy provides a useful tool for characterizing the microstructures produced in terms of solute concentration profiles, second phase formation, lattice damage, crystallinity of the implanted layer, and annealing behavior. Such analyses allow correlations to be made with theoretical models, property measurements, and results of complimentary techniques.

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