Cu-silicalite-1 catalyst for the wet hydrogen peroxide oxidation of phenol

Granato, Teresa; Katović, A.; Valkaj, Karolina Maduna; Tagarelli, Antonio; Giordano, G.

doi:10.1007/s10934-008-9190-2

Cited by 20 publications

(12 citation statements)

References 13 publications

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“…A near-neutral pH condition is preferable because operation under near-neutral conditions can easily apply to most wastewater. On the other hand, acidic conditions significantly enhance the leaching of active component [22].…”

Section: Effect Of Initial Phmentioning

confidence: 99%

“…Catalysts like transition metal ions (Fe, Co and Ni) impregnated carbon aerogels [12], Fe and Cu pilled clays [13][14][15], Fe-and Cu-exchange Y and ZSM-5 zeolites [16][17][18][19][20][21], and Cu-Silicalite-1 zeolite prepared by 0304-3894/$ -see front matter © 2010 Elsevier B.V. All rights reserved. doi:10.1016/j.jhazmat.2010.04.055 direct hydrothermal synthesis or by ionic exchange method [22] have been studied for the removal of different contaminants such as phenol and derivatives, dyes, carboxylic acids and MTBE by WHPCO processes.…”

Section: Introductionmentioning

confidence: 99%

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Copper hydroxyphosphate as catalyst for the wet hydrogen peroxide oxidation of azo dyes

Zhan

Chen

2010

Journal of Hazardous Materials

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Section: Effect Of Initial Phmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Copper hydroxyphosphate as catalyst for the wet hydrogen peroxide oxidation of azo dyes

Zhan

Chen

2010

Journal of Hazardous Materials

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“…In addition, acidic conditions significantly enhance the leaching of active component from SBA-15 that is not desirable. 39 Considering these reasons, further studies were carried out at natural pH only.…”

Section: Effect Of Phmentioning

confidence: 99%

Catalytic Activity of Cu/SBA‐15 for Peroxidation of Pyridine Bearing Wastewater at Atmospheric Condition

2013

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In this study, Cu-loaded Santa Barbara amorphous (SBA)-15 catalysts were synthesized by impregnation method and further used for catalytic wet peroxidation (CWPO) of pyridine from aqueous solution using hydrogen peroxide as oxidant. The synthesized catalysts have been characterized by Brunauer-Emmett-Teller surface area: temperature-programmed reduction, H 2 -chemisorption, Fourier transform infrared spectroscopy, and field emission scanning electron microscopy. Characterization results indicate good dispersion of Cu species inside the porous structure of SBA-15. The effect of various parameters such as Cu loading on SBA-15, pH, catalyst dose, H 2 O 2 concentration, and temperature have been studied for their effect on CWPO of pyridine. More than 97% pyridine removal and 92% total organic carbon removal was achieved at optimum condition. Cu/SBA-15 showed stable performance during reuse for six cycles with negligible copper leaching.

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“…In the last 10 years, the attention has been focused on different kind of supported transition metal ion (iron or copper) catalysts: metal-exchanged zeolites, metalexchanged clays, metal-exchanged resins and hydrotalcite-like (HTlike) compounds (Garrido-Ramírez et al, 2010;Liotta et al, 2009;Navalon et al, 2010). Compared with iron-based catalysts, copper-based catalysts show higher resistance to leaching and better catalytic performance, and wider range of pH operations (Caudo et al, 2007;Granato et al, 2009). Thus, there has been a considerable interest in the development of copper-based heterogeneous catalysts especially HTlike compounds and pillared clays (PILCs) in recent years.…”

Section: Introductionmentioning

confidence: 99%