Activated carbon supported metal catalysts for reduction of nitrate in water with high selectivity towards N2

Bahri, M. Al; Calvo, L.; Gilarranz, Miguel Á.; Rodrı́guez, Juan J.; Epron, Florence

doi:10.1016/j.apcatb.2013.02.048

Cited by 78 publications

(39 citation statements)

References 46 publications

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“…Thus, the detailed elemental analysis of pretreated carbons by XRF was presented in Table 2. For the carbon pretreated by H 2 O, a large amount of C, O, Cl, Ca, Si, a small amount of K, Fe, Al, P, Mg, and a trace amount of S, Ti, Na, Ba, Mn, Cu were detected, which were the mostly frequent and abundant mineral elements in natural carbon materials according to reports [35,36]. Moreover, the mineral elements were decreased for the carbon pre-treated by acid solutions, especial the one using HNO 3 .…”

Section: Catalyst Characterizationmentioning

confidence: 91%

Influence of acid pretreatment on the hydrodeoxygenation performance of carbon supported RuMo bimetallic catalysts on sorbitol conversion

et al. 2019

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Sorbitol was reported as one promising platform compounds as a C6 sugar related derivative from biomass cellulose due to its high oxygen content with six hydroxyl groups. Our previous work has reported the selective hydrodeoxyenation (HDO) of sorbitol into long alkanes such as pentane and hexane (C5/C6) over carbon supported ruthenium-molybdenum catalysts. Here, the effect of acidic pretreatments of those carbon catalysts on the performance of HDO reaction was studied in detailed. The result indicated that carbon support pretreated by phosphoric acid presented much phosphorus groups, but the carbon support pretreated by nitric acid presented high graphitization degree. Moreover, the phosphoric acid pretreated catalyst (RuMo/C-P) obtained high HDO performance in the sorbitol conversion with 79.7% carbon yield of C5/C6 alkane (pentane and hexane). Finally, detailed characterizations (N 2 -adsorption, XRD, HRTEM, XPS, XRF, Raman, NH 3 -TPD, Py-IR spectrums, etc.) were performed over relevant catalysts for correlating their catalytic and physicochemical properties.

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Section: Catalyst Characterizationmentioning

confidence: 91%

Influence of acid pretreatment on the hydrodeoxygenation performance of carbon supported RuMo bimetallic catalysts on sorbitol conversion

et al. 2019

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“…Chemical contaminants are removed from water through two processes. Contaminants can either be adsorbed onto nanoparticles (similar to the adsorption of dissolved organic compounds onto filters) or changed chemically via catalytic reactions, for instance, nitrate to nitrogen gas (Al Bahri et al, 2013). Nano-absorbents can be embedded in activated carbon filters or novel membranes, or have magnetic properties that allows for quick and effective recapture of the nanomaterials using magnetic fields (Jabbari et al, 2016).…”

Section: Part Of the Solution: Nanotechnology-enabled Water Treatmentmentioning

confidence: 99%

In Pursuit of Safe Drinking Water in the Texas-Mexico Border Region: A Matter of Social Justice

Moya¹,

Chavez-Baray²,

Torres-Sajquim³

et al. 2018

SDRP-JESES

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The U.S.-Mexico border is populated by resilient families and characterized by environmental, social, economic, cultural, and epidemiologic inequalities. Person-in-environment perspectives and the need to embrace a new concept of environment to improve well-being of individuals and eradicate social conditions that undermine health are vital. One of the most innovative and promising mechanisms to improve water safety in underserved communities is the use of nanotechnology devices. The manuscript exposes the water scarcity, contamination and the health and social impacts in the Southwest border region and explores the use of Nanotechnology Enabled Water Treatment (NEWT) devices an alternative for water purification. These technologies will be portable, use less water treatment chemicals (i.e., chlorine) and electricity by employing nanophotonics for processes such as solar desalination. Nanotechnology seems to have the potential to address some of the pressing water safety and environmental needs. Caution, however, should be used when implementing nanotechnology especially when done with members of vulnerable populations. Community-engagement is crucial to inform scientists and researchers about the social needs through the use of participatory action research methods like focus groups, in-depth interviews and forums. The NEWT Project is an interdisciplinary, multi-institution nanosytems-engineering research center, consisting of an interdisciplinary research team of engineers, chemists, psychologists, social workers and community partners.

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“…In the present work, a series of coconut‐based AC‐supported copper catalysts were synthesized by a facile ammonia evaporation–impregnation method. The tight structure and the abundant functional groups on the surface make the AC an excellent support candidate for the copper‐based catalysts . Cu/AC catalysts with copper loading of 20 wt % were studied and named Cu/AC‐ x , where x denotes the calcination temperature (in K).…”

Section: Catalytic Performances and Physicochemical Properties Of Thementioning

confidence: 99%

“…The tight structure and the abundant functional groups on the surface make the AC an excellent support candidate for the copper-based catalysts. [6] Cu/ AC catalystsw ithc opper loading of 20 wt %w ere studied and named Cu/AC-x,w here x denotes the calcination temperature (in K). The catalystw ithouth eat treatmentw as donated as Cu/ AC-non.…”

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confidence: 99%

Investigation of Activated‐Carbon‐Supported Copper Catalysts with Unique Catalytic Performance in the Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

et al. 2015

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Copper‐based activated‐carbon (AC)‐supported catalysts were synthesized by a facile ammonia evaporation–impregnation method. Unlike the conventional Cu/SiO2 catalyst, which showed highly catalytic selectivity towards ethylene glycol (EG) or EtOH, Cu/AC catalysts display unique selectivity to methyl glycolate (MG). The catalytic performance relies on the high content of surface Cu+ species and the relatively large copper particles with moderate hydrogenation activity.

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Activated carbon supported metal catalysts for reduction of nitrate in water with high selectivity towards N2

Cited by 78 publications

References 46 publications

Influence of acid pretreatment on the hydrodeoxygenation performance of carbon supported RuMo bimetallic catalysts on sorbitol conversion

Influence of acid pretreatment on the hydrodeoxygenation performance of carbon supported RuMo bimetallic catalysts on sorbitol conversion

In Pursuit of Safe Drinking Water in the Texas-Mexico Border Region: A Matter of Social Justice

Investigation of Activated‐Carbon‐Supported Copper Catalysts with Unique Catalytic Performance in the Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

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