Dual functional adsorbent/catalyst of nano-gold/metal oxides supported on carbon grain for low-temperature removal of toluene in the presence of water vapor

Minh, Nguyen Thanh; Thanh, Le Duc; Trung, Bien Cong; An, Ngo Thanh; Long, Nguyễn Quang

doi:10.1007/s10098-018-1583-6

Cited by 4 publications

(1 citation statement)

References 56 publications

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“…showed that the toluene desorption temperature is 150 °C, which explained why the hybrid systems tested were no more efficient at higher temperatures, with a decrease in the removal efficiency by 13% [100] . In fact, since the first step of the catalytic system is adsorption, the more the VOC is desorbed at reactive sites, the less is the conversion of toluene.…”

Section: Successive Adsorbent-catalytic Systemsmentioning

confidence: 99%

Boosting VOCs elimination by coupling different techniques

Khawaja¹,

Veerapandian²,

Bitar³

et al. 2022

Chem Synth

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Volatile Organic Compounds (VOCs) are known to be hazardous and harmful to human health and the environment. In mixtures or during repeated exposures, significant toxicity of these compounds in trace amounts has been revealed. In vitro air-liquid interface approaches underlined the interest in evaluating the impact of repeated VOC exposure and the importance of carrying out a toxicological validation of the techniques in addition to the standard chemical analyses. The difficulties in sampling and measuring VOCs in stationary source emissions are due to both the complexity of the mixture present and the wide range of concentrations. The coupling of VOC treatment techniques results in efficient systems with lower operating energy consumption. Three main couplings are outlined in this review, highlighting their advantages and relevance. First, adsorption-catalysis coupling is particularly valuable by using adsorption and catalytic oxidation regeneration initiated, for example, by selective dielectric heating. Then, several key aspects of the plasma catalysis process, such as the choice of catalysts suitable for the non-thermal plasma (NTP) environment, the simultaneous removal of different VOCs, and the in situ regeneration of the catalyst by NTP exposure, are discussed. The adsorption-photocatalysis coupling technology is also one of the effective and promising methods for VOC removal. The VOC molecules strongly adsorbed on the surface of the photocatalyst can be directly oxidized by the photogenerated hole on the photocatalyst (e.g., TiO2).

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Section: Successive Adsorbent-catalytic Systemsmentioning

confidence: 99%

Boosting VOCs elimination by coupling different techniques

Khawaja¹,

Veerapandian²,

Bitar³

et al. 2022

Chem Synth

View full text Add to dashboard Cite

show abstract

Current progress on catalytic oxidation of toluene: a review

Murindababisha

Yusuf

Sun

et al. 2021

Environ Sci Pollut Res

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Toluene is one of the pollutants that are dangerous to the environment and human health and has been sorted into priority pollutants; hence the control of its emission is necessary. Due to severe problems caused by toluene, different techniques for the abatement of toluene have been developed.Catalytic oxidation is one of the promising methods and effective technologies for toluene degradation as it oxidizes it to CO2 and does not deliver other pollutants to the environment. This paper highlights the recent progressive advancement of the catalysts for toluene oxidation. Five categories of catalysts, including noble metal catalysts, transition metal catalysts, perovskite catalysts, metal-organic framework (MOFs)-based catalysts, and spinel catalysts reported in the past half a decade (2015-2020), are reviewed. Various factors that influence their catalytic activities, such as morphology and structure, preparation methods, specific surface area, relative humidity, and coke formation, are discussed. Furthermore, the reaction mechanisms and kinetics for catalytic oxidation of toluene are also discussed.

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Combined adsorption and catalytic oxidation for low-temperature toluene removal using nano-sized noble metal supported on ceria-granular carbon

Trung

Thanh

et al. 2020

Journal of Environmental Chemical Engineering

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Dual functional adsorbent/catalyst of nano-gold/metal oxides supported on carbon grain for low-temperature removal of toluene in the presence of water vapor

Cited by 4 publications

References 56 publications

Boosting VOCs elimination by coupling different techniques

Boosting VOCs elimination by coupling different techniques

Current progress on catalytic oxidation of toluene: a review

Combined adsorption and catalytic oxidation for low-temperature toluene removal using nano-sized noble metal supported on ceria-granular carbon

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