Activated carbon cloth as adsorbent and oxidation catalyst for the removal of amitrole from aqueous solution

Moreno‐Castilla, Carlos; Fontecha-Cámara, M.A.; Álvarez-Merino, M.A.; López-Ramón, M.V.; Carrasco-Marín, Francisco

doi:10.1007/s10450-010-9270-x

Cited by 19 publications

(7 citation statements)

References 14 publications

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“…Meanwhile, two weak absorption peaks were appeared at 2895 and 2980 cm À1 , which are referred to C-H vibration. Moreno-Castilla et al 30 investigated activated carbon cloth with H 2 O 2 for the removal of amitrole from aqueous solution. One is at 1192 cm À1 , which is corresponding to S-O stretching vibration 28,29 and the other is carboxylic C]O absorption at 1720 cm À1 .…”

Section: Reactivity Of Spent Pac Catalyst and Reusabilitymentioning

confidence: 99%

Activated carbons as green and effective catalysts for generation of reactive radicals in degradation of aqueous phenol

et al. 2013

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Several activated carbons (ACs) were used as metal-free catalysts for degradation of a toxic organic compound, phenol, in the presence of different oxidants, H 2 O 2 , peroxydisulfate (PS) and peroxymonosulfate (PMS). It was found that ACs were effective in heterogeneous activation of PMS to produce sulfate radicals for degradation of phenol, much better than H 2 O 2 and PS. Particle size of AC significantly influenced AC activity, and powder AC was much more effective than granular AC. The complete phenol removal could be achieved in 15 min on powder activated carbon (PAC) under the conditions of [phenol] ¼ 25 mg L À1 , [PAC] ¼ 0.2 g L À1 , [PMS] ¼ 6.5 mmol L À1 , and T ¼ 25 C. It was also found that phenol degradation was significantly influenced by PMS loading, catalyst loading, phenol concentration and temperature. Surface activation of PMS and phenol adsorption played important roles in phenol degradation. Surface coverage by intermediate adsorption and structural change induced deactivation of AC and catalytic activity could be partially recovered by regeneration using calcination. † Electronic supplementary information (ESI) available: XRD, TGA of powder activated carbon, effect of phenol concentration and effect of catalyst loading and rate constant. See

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Section: Reactivity Of Spent Pac Catalyst and Reusabilitymentioning

confidence: 99%

Activated carbons as green and effective catalysts for generation of reactive radicals in degradation of aqueous phenol

et al. 2013

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“…Desorption results enabled to demonstrate that the adsorption of the pesticide on the felt was reversible, providing additional evidence that adsorption took place by -interactions. As summarized in Table 2, a series of comprehensive studies on the adsorption of herbicides onto activated carbon cloths for batch and continuous modes has been reported by Moreno-Castilla and coworkers [135,[144][145][146][147][148]. The herbicides investigated included amitrole, diuron, and fluroxypyr.…”

Section: Isrn Chemical Engineeringmentioning

confidence: 99%

“…The behavior was explained by the largest mesopore volume, water accessible pore volume, and surface area of the ACC compared to the other forms investigated, whereas the granular activated carbon was found to behave as the best adsorbent for amitrole owing to its higher surface basicity. In another study [148], both the adsorption of amitrole from water on an activated carbon cloth and the oxidation with hydrogen peroxide using the same ACC as catalyst were examined. The effects of the solution pH, ionic strength, and temperature on amitrole adsorption as well as the influence of the solution pH and the surface chemistry of the ACC on the oxidation were investigated.…”

Section: Isrn Chemical Engineeringmentioning

confidence: 99%

Development and Environmental Applications of Activated Carbon Cloths

Cukierman

2013

ISRN Chemical Engineering

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Activated carbon cloths have received growing attention because they offer comparative advantages over the traditional powdered or granular forms of this well-known adsorbent, providing further potential uses for technological innovations in several fields. The present article provides an overview of research studies and advances concerned with the development of activated carbon cloths and their use as adsorbent in environmental applications, mostly reported in the last years. The influence of some fabrics and textile wastes used as precursors, and of main activation process variables on the development and physicochemical, mechanical and/or electrical properties of the resulting activated carbon cloths are first reviewed. Then, investigations dealing with the removal of water and air pollutants by adsorption onto activated carbon cloths, including advances toward optimizing their regeneration after organic vapors saturation, are presented.

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“…For many years, the studies on the use of adsorbents for the removal of various herbicides from water have been conducted. Common adsorbents in such methods are carbon activated in different ways (Tae-Young et al, 2005;Chingombe et al, 2006;Derylo-Marczewska et al, 2010;Gupta et al, 2011;Hotton et al, 2011;Moreno-Castilla et al, 2011) and nanotubes (Pyrzynska et al, 2007;Paul et al, 2011a;Pyrzynska, 2011). Adsorption of pesticides was also studied on zeolites (Senthilkumaar et al, 2010;Yonli et al, 2012), montmorillonites (Chang et al, 2005;Akçay et al, 2006;Bansal, 2009;Park et al, 2011), sepiolites (Cardoso and Valim, 2006), and silica gels (Prado and Airoldi, 2001;Prado et al, 2004;Akçay et al, 2005;Kovaios et al, 2011;Paul et al, 2011b;Koner et al, 2012).…”

Section: Introductionmentioning

confidence: 97%