Acid-treated clay catalysts for organic dye ozonation – Thorough mineralization through optimum catalyst basicity and hydrophilic character

Boudissa, Farida; Mirila, Diana Carmen; Aruş, Vasilica-Alisa; Terkmani, Thizizi; Semaan, Sirène; Proulx, M.; Nistor, Ileana Denisa; Roy, René; Azzouz, Abdelkrim

doi:10.1016/j.jhazmat.2018.09.070

Cited by 70 publications

(55 citation statements)

References 70 publications

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“…The reactivity towards ozone is assumed to increase with increasing molecular size and decreasing oxidation level. 2,5…”

Section: Resultsmentioning

confidence: 99%

“…1,2 The concept is that clay-containing media promote oxidative processes, given that clay catalysts already turned out to be quite effective in organic pollutant removal. [2][3][4][5][6][7][8] Clay type and content in soils and turbid waters are expected to induce different eco-toxicities according to the features of the organic substrates. These features are expected to strongly influence the substrate-clay and clay-clay interactions through pH, zeta potential, particle size and subsequently catalyst dispersion in aqueous media.…”

Section: Introductionmentioning

confidence: 99%

“…34,35 Clay-catalysed ozonation was already found to contribute in overcoming the low solubility and short lifetime of ozone in aqueous media by favouring adsorption on solid particles. [2][3][4][5][6][7][8] Most clay minerals are widely available and affordable materials, 36,37 which can act both as catalysts and adsorbers. Assessment of their surface charge and particle size could provide useful information on their possible interactions with dispersed species in aqueous media.…”

Section: Introductionmentioning

confidence: 99%

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Insight into natural medium remediation through ecotoxicity correlation with clay catalyst selectivity in organic molecule ozonation

et al. 2022

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“…The reactivity towards ozone is assumed to increase with increasing molecular size and decreasing oxidation level. 2,5…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Insight into natural medium remediation through ecotoxicity correlation with clay catalyst selectivity in organic molecule ozonation

et al. 2022

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“…Senyawa asam borat memiliki kelarutan yang sedikit jika dilrutkan di dalam alkohol, (139)(140)(141)(142) cukup larut dalam piridina (143) dan akan sangat sedikit larut (144) ketika pelarutnya aseton. (142; 145-148) Kelarutan suatu senyawa dapat dipengaruhi oleh beberapa faktor diantaranya sifat dari zat terlarut (solute) (149)(150)(151)(152)(153) dan pelarut (154) (solvent) (105; 139; 142; 155; 156) dimana zat terlarut yang bersifat polar (214)(215)(216) akan mudah larut dalam solvent (243)(244)(245)(246) yang bersifat polar begitupun sebaliknya. Suhu, konsentrasi, (106; 149; 157-159) pengaruh penambahan ion senama (236)(237) juga sangat berpengaruh terhadap kelarutan (247)(248)(249) suatu senyawa.…”

Section: Analisis Gapunclassified

Boric Acid (H3(BO3): Recognize The Molecular Interactions in Solutions

Dwynda¹,

Zainul²

2018

Preprint

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Asam borat biasa dikenal dengan asam boraks merupakan suatu monobasa dari asam Lewis boron lemah yang dapat digunakan sebagai antiseptik, insektisida, penyangga pH, atau penyerap neutron. Asam borat larut dalam air mendidih. Ketika senyawa ini dipanaskan pada suhu melebihi 170OC senyawa ini akan terdehidrasi kemudian membentuk HBO2 atau asam metaborat . Senyawa dengan rumus kimia H3BO3 ini terdapat dalam bentuk serbuk putih yang larut dalam air dan kristal yang tidak berwarna. Penilitian ini bertujuan untuk mengetahui struktur, karakteristik, bentuk molekul dan jenis ikatan dari asam borat. Untuk metode literasi jurnal digunakan aplikasi EndNote yang dijelaskan melalui fishbone state of art. Sedangkan metode yang digunakan untuk melihat hasil optimasi, energi serta gambar dari molekul digunakan metode komputasi dengan software ChemOffice 15.0. Berdasarkan metode ini diperoleh energi kinetik rotasi senyawa 0.3165, dipole/dipole 1.2329 dan energi total 5.1769 kcal/mol. Untuk konduktivitas, kecepatan hanyut, gerakan ion, dilakukan dengan menggunakan metode perhitungan dengan rumusan hasilnya dan beberapa soal yang dibuatkan grafiknya. Secara termodinamika, asam borat pada keadaan standar dan tekanan 1 atm memiliki ∆HoR -5351 kJ / kmol, ∆G°f -122.462 kJ / kmol dengan konstanta kecepatan reaksi k= 8,8727 L/kmol.s. dan Cp pada suhu 100oC sebesar 35,93 J/kgK serta Ho -16.636 J/mol. Proses pembuatan asam borat berlangsung secara spontan dapat dilihat melalui ∆G°f yang bernilai negatif dan terjadi reaksi eksoterm dapat dilihat berdasarkan perolehan ∆HoR yang negatif.

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“…For the removal of dye, many technologies had been used, and they include chemical degradation and physical removal as well as biological process. Chemical degradation usually included photocatalysis , electrochemical degradation processing , and ozonation . The physical removal was also widely studied by adsorption method with different adsorbents .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cationic Grafted‐Microfiltration Membrane of PSF‐g‐QPDMAEMA and Study on its Adsorption and Rejection Performance for Acid Dye

Gao

Men

2020

Polymer Engineering & Sci

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Chloromethylated polysulfone (CMPSF) microfiltration membrane were first prepared by using immersion-precipitation phase transformation method, and then CMPSF membrane was modified into aminated PSF membrane (AMPSF membrane). A surface-initiating system of -NH 2 /S 2 O 8 2− was constituted at the interface between AMPSF membrane and a aqueous solution, in which monomer dimethylaminoethyl methacrylate (DMAEMA) and initiator ammonium persulfate were dissolved. The graft polymerization of DMAEMA was successfully realized on AMPSF membrane, resulting in the grafted membrane PSF-g-PDMAEMA. And then quaternization modification of the grafted membrane PSF-g-PDMAEMA was performed, resulting in the cationic microfiltration membrane of PSF-g-QPDMAEMA. The isothermal adsorption experiments of PSF-g-QPDMAEMA membrane for two acid dyes, reactive brilliant red (RBR), and reactive light yellow (RLY), were carried out, and the permeation experiments were also conducted. The experimental results show that PSF-g-QPDMAEMA membrane has strong adsorption ability for acid dyes by right of the electrostatic interaction between the quaternary ammonium cations on the surface of PSF-g-QPDMAEMA membrane and the sulfonate anions in the molecules of acid dyes as well as by right of cation-π interaction between the quaternary ammonium cations on PSF-g-QPDMAEMA membrane and the aromatic rings in the molecules of acid dyes. PSF-g-QPDMAEMA membrane displays excellent rejection and removing performance for acid dyes in water. POLYM. ENG. SCI., 60:900-908, 2020.

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Acid-treated clay catalysts for organic dye ozonation – Thorough mineralization through optimum catalyst basicity and hydrophilic character

Cited by 70 publications

References 70 publications

Insight into natural medium remediation through ecotoxicity correlation with clay catalyst selectivity in organic molecule ozonation

Insight into natural medium remediation through ecotoxicity correlation with clay catalyst selectivity in organic molecule ozonation

Boric Acid (H3(BO3): Recognize The Molecular Interactions in Solutions

Preparation of Cationic Grafted‐Microfiltration Membrane of PSF‐g‐QPDMAEMA and Study on its Adsorption and Rejection Performance for Acid Dye

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