Adsorption equilibrium of ammonia and water on porous adsorbents at low pressure: Machine learning-based models

Chen, Ruiqing; Liu, Junjie; Dai, Xilei

doi:10.1016/j.jclepro.2022.134351

Cited by 4 publications

(2 citation statements)

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“…Gas-phase molecules are adsorbed onto the surface-active sites of the sensitive materials in a single-layer form, and then the air in the mesoporous structure is removed by NH 3 . The Langmuir isotherm model is obtained using eq , where n ( p ) and n m are the equilibrium and monolayer adsorption capacities (mmol·g –1 ), respectively, and K p is the Langmuir isotherm parameter (bar –1 ) . It was discovered that the response of HoMS-BaTiO 3 follows the power law at low concentrations.…”

Section: Resultsmentioning

confidence: 99%

“…The Langmuir isotherm model is obtained using eq 3, where n(p) and n m are the equilibrium and monolayer adsorption capacities (mmol•g −1 ), respectively, and K p is the Langmuir isotherm parameter (bar −1 ). 31 It was discovered that the response of HoMS-BaTiO 3 follows the power law at low concentrations. As the NH 3 concentration increases, the Langmuir adsorption process fades because numerous NH 3 molecules fill the mesopores, thereby causing the adsorption rate to decrease.…”

Section: Resultsmentioning

confidence: 99%

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Confinement Enrichment Effect in HoMS-BaTiO₃ Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature

Xu,

Yang,

Wang

et al. 2024

ACS Sens.

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The construction of ammonia gas sensors with wide detection ranges is important for exhalation diagnosis and environmental pollution monitoring. To achieve a wide detection range, sensitive materials must possess excellent spatial confinement and large active surfaces to enhance gas adsorption. In this study, an ammonia microwave gas sensor with a wide detection range of 10 ppb−0.55 v/v% at room temperature was fabricated by incorporating hollow multishelled-structured BaTiO 3 (HoMS-BaTiO 3 ). The effect of the number of shells and the quantity of the sensitive material on the gas-sensing performance was investigated, and two-layered HoMS-BaTiO 3 demonstrated the best response at high concentrations (0.15−0.55 v/v%). Conversely, single-layered HoMS-BaTiO 3 displayed outstanding performance at low concentrations (10 ppb−0.15 v/v%). The lower the quantity of the sensitive material, the higher the response. This study offers a method for preparing room-temperature ammonia sensors with a wide detection range and reveals the link between the structure and quantity of sensitive materials and gas-sensing performance.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Confinement Enrichment Effect in HoMS-BaTiO₃ Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature

Xu,

Yang,

Wang

et al. 2024

ACS Sens.

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Comprehensive protection against ammonia by Cu2+ modified activated carbon

He,

Chen

et al. 2024

Diamond and Related Materials

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Synthesis of eco-friendly polyaniline-zeolite nanocomposite for pollutant remediation: Empowered by robust machine learning algorithm

Parmar,

Shukla,

Bandyopadhyay

et al. 2024

Journal of Cleaner Production

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Adsorption equilibrium of ammonia and water on porous adsorbents at low pressure: Machine learning-based models

Cited by 4 publications

References 52 publications

Confinement Enrichment Effect in HoMS-BaTiO₃ Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature

Confinement Enrichment Effect in HoMS-BaTiO₃ Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature

Comprehensive protection against ammonia by Cu2+ modified activated carbon

Synthesis of eco-friendly polyaniline-zeolite nanocomposite for pollutant remediation: Empowered by robust machine learning algorithm

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Adsorption equilibrium of ammonia and water on porous adsorbents at low pressure: Machine learning-based models

Cited by 4 publications

References 52 publications

Confinement Enrichment Effect in HoMS-BaTiO3 Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature

Confinement Enrichment Effect in HoMS-BaTiO3 Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature

Comprehensive protection against ammonia by Cu2+ modified activated carbon

Synthesis of eco-friendly polyaniline-zeolite nanocomposite for pollutant remediation: Empowered by robust machine learning algorithm

Contact Info

Product

Resources

About

Confinement Enrichment Effect in HoMS-BaTiO₃ Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature

Confinement Enrichment Effect in HoMS-BaTiO₃ Microwave Gas Sensors for the Detection of 10 ppb–0.55 v/v% Ammonia at Room Temperature