An undergraduate research experience: Synthesis, modification, and comparison of hydrophobicity of zeolites A and X

Giroux, Michael; Sahadeo, Emily; Libera, Robert; Maurizi, Ashley; Giles, Ian D.; Marteel‐Parrish, Anne E.

doi:10.1016/j.poly.2015.09.037

Cited by 10 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Better hydrophobic properties are required from the expanded perlite which is used to remove petroleum pollutions. Methods of the hydrophobization of perlite with the use of silicon compounds are known [10][11][12][13]15]. The presented study demonstrated that one may change the hydrophobic properties of the expanded perlite with the use of stearic acid solutions in organic solvents.…”

Section: Discussionmentioning

confidence: 90%

See 1 more Smart Citation

The new method of modifying the hydrophobic properties of expanded perlite

Vogt

Płachta

2017

E3S Web Conf.

View full text Add to dashboard Cite

Abstract. The progressive industrialization and development of the automotive industry is the cause of the increasing demand for chemical products, especially oil products. Unfortunately, during processing, transportation or storage of these products, they get very often into the environment causing pollution. The removal of the results of accidents is still a current problem. The techniques which employ various types of sorbents deserve special attention among the several methods of eliminating the effects of pollutions. Moreover, expanded hydrophobic perlite is an interesting material among sorbents which are used on a large scale. The new method of modifying the hydrophobic properties of expanded perlite, with the use of solutions of stearic acid in organic solvents, was presented. The perlite that was used in research was produced by the PerliPol registered partnership in Bełchatów. Hydrophobic properties of the obtained materials were determined on the basis of the results achieved due to the modified film flotation method, "floating on water" test and on the basis of the value of water retention for individual samples. All grain fractions of perlite obtained hydrophobic properties which were better than or comparable to the hydrophobic properties of the HydroPerl (PerlPol) commercial material used to remove petroleum product pollution. The hydrophobization process significantly improved the adsorption capacity of modified perlite to petroleum product pollution.

show abstract

Section: Discussionmentioning

confidence: 90%

“…Tests prove that hydrophobic properties significantly improve the absorption capacity of various kinds of sorbents used for the removal of pollutions, especially petroleum products. [10,[14][15] The technologies of perlite hydrophobic manufacturing that are known are based mainly on silicone compounds [10,16].…”

Section: Introductionmentioning

confidence: 99%

The new method of modifying the hydrophobic properties of expanded perlite

Vogt

Płachta

2017

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…The second weight loss region was above 200 °C and could be attributed to the complete combustion of organic substances in the zeolite Fig. 3 SEM image of a polyaniline, b zeolite X, c polyaniline/zeolite X composite and TEM image of d polyaniline, e zeolite X, f polyaniline/ zeolite X composite X structure, such as the breakdown of the bonds between the silicon and oxygen that make up the zeolite X structure [35,36]. The PANI TGA thermogram (Fig.…”

Section: Characterization Studiesmentioning

confidence: 99%

Application of (polyaniline/zeolite X) composite as anticorrosion coating for energy recovery devices in RO desalination water plants

et al. 2019

View full text Add to dashboard Cite

Reverse osmosis desalination water plants have several operational issues such as corrosion in many areas like energy recovery devices that are accustomed to restore energy and scale back prices. Thus, there is a necessity to reduce the corrosion rate of the devices utilized in energy recovery. This study focuses on protection of some metals and alloys that are utilized in this industry by introducing a new anticorrosion coating. The new anticorrosion coating was formulated by the interaction of polyaniline and X-type zeolite that is employed as hosting material. Polyaniline was first formulated by conventional oxidation polymerization method of aniline in acidic medium at temperature below 5 °C by using ice bath. Then, ammonium persulphate was used as oxidizer. Numerous characterization techniques were used to demonstrate the encapsulation of polyaniline in X-type zeolite frames such as IR, UV-visible spectroscopy, scanning electron microscopy, transmission electron microscope, energy-dispersive X-ray and X-ray diffraction. The new anticorrosion coating was evaluated by using weight loss technique, Tafel polarization and electrochemical impedance spectroscopy; all of these techniques showed the effective anticorrosion properties of the prepared coating in which the corrosion rate from the polarization curves results, for all coated samples, was less than the bare ones as it recorded 2.403, 1.094, 23.48, 35.09 MPY for bare 304 and 316 stainless steel, Al and carbon steel, respectively, and 0.3132, 0.2733, 0.2506, 10.81 MPY for the coated samples. Corrosion results showed a noteworthy protection of the tested metals and alloys in saline water coated with the polyaniline/zeolite X.

show abstract

“…In this study, adsorption was chosen as the method to be developed by utilizing chemically activated natural zeolite as an adsorbent, which was packed in a vertical cylindrical column. Natural zeolite has excellent properties for the water adsorption process because of its hydrophilic properties (Giroux et al 2016;Siddiki et al 2016). Compared with activated carbon, natural zeolite could have a higher surface area, up to 1000 m 2 /g, and poses a uniform pore size distribution.…”

Section: Introductionmentioning

confidence: 99%

Problem Solving of Isopropyl Alcohol – Water Azeotropic Characteristics Using Packed (Natural Zeolite) Bed Adsorber

Prasakti

Hartono

Jati³

et al. 2020

AJSTD

View full text Add to dashboard Cite

The adsorption kinetics of water from an azeotropic mixture of isopropyl alcohol and water using chemically activated natural zeolites with and without a binder (starch) was investigated. In addition, an investigation of the compressive strength of zeolite pellets was conducted to ascertain the performance of the adsorbent for long-term operation. Three parameters were applied in the zeolite-making process: the particle size of zeolite (20, 30, 50, and 80 mesh), the sintering temperature (550, 750, and 1,000°C), the compaction pressure (2, 4, and 6 tonnes), and the starch-to-zeolite weight ratio (0, 1:3, 1:5, and 1:7). Initial screenings indicated that the strongest zeolite pellet was 80-mesh zeolite powder (without starch addition) that was compacted using 6 tonnes pressure and was sintered at 750°C. The adsorption tests using the strongest zeolite were conducted in a packed-bed column for three cycles, followed by compressive strength tests on the zeolite pellets after each cycle. According to the experimental data, zeolite pellets made without the addition of starch could adsorb up to 98.4% of the initial water in the mixture. From the four models proposed to describe the kinetics of adsorption of water from the mixture, the Freundlich model turned out to be the best model.

show abstract

An undergraduate research experience: Synthesis, modification, and comparison of hydrophobicity of zeolites A and X

Cited by 10 publications

References 16 publications

The new method of modifying the hydrophobic properties of expanded perlite

The new method of modifying the hydrophobic properties of expanded perlite

Application of (polyaniline/zeolite X) composite as anticorrosion coating for energy recovery devices in RO desalination water plants

Problem Solving of Isopropyl Alcohol – Water Azeotropic Characteristics Using Packed (Natural Zeolite) Bed Adsorber

Contact Info

Product

Resources

About