4.7 Article

Drastically boosting volatile acetone capture enabled by N-doping activated carbon: An interesting deep surface digging effect

Related references

Note: Only part of the references are listed.
Article Materials Science, Multidisciplinary

Insight into specific surface area, microporosity and N, P co-doping of porous carbon materials in the acetone adsorption

Changqing Su et al.

Summary: Nitrogen and phosphorous-doped porous carbon materials synthesized by chemical activation method exhibited excellent acetone adsorption performance, with the sample activated at 800 degrees Celsius having the highest acetone capacity. The high dispersion of adsorption sites, large specific surface area, and good adsorption affinity with acetone indicated the dominant role of surface physical structure in acetone adsorption.

MATERIALS CHEMISTRY AND PHYSICS (2021)

Article Energy & Fuels

Adsorption of Low-Concentration VOCs on Modified Activated Carbons in a Humid Atmosphere

Jinjin Li et al.

Summary: The study shows that activated carbons treated by heat have better adsorption performance for low-concentration VOCs under high humidity, exhibiting greater selectivity. CAC-1 samples have more graphitic content and lower acidic groups, leading to higher toluene diffusion rates and stronger hydrophobic interactions.

ENERGY & FUELS (2021)

Article Engineering, Chemical

Ultrasonic Treatment: An Acid-Free Green Approach Toward Preparing High-Performance Activated Carbon from Lignin

In Tae Kim et al.

Summary: Research shows that the ultrasonic treatment of lignin for activation can reduce processing time, produce activated carbon with comparable properties to traditional techniques, and effectively adsorb volatile organic compounds emitted from polyurethane composite foams used in automobile interiors.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

Review Chemistry, Multidisciplinary

Applications of MOFs as Luminescent Sensors for Environmental Pollutants

Guo-Li Yang et al.

Summary: Environmental pollution poses serious health risks and requires the urgent detection of pollutants for protection. Luminescent metal-organic frameworks (LMOFs) with tunable structures have shown excellent performance as sensors for detecting various environmental pollutants.

SMALL (2021)

Article Chemistry, Multidisciplinary

Rational Control of Topological Defects in Porous Carbon for High-Efficiency Carbon Dioxide Conversion

Pengfei Jiang et al.

Summary: In this study, nitrogen-doped porous carbons enriched with topological defects were prepared using nitrogen-enriched 2,6-dicyanopyridine as the precursor, showing high specific surface areas and excellent CO2 reduction activity. Density functional theory calculations revealed that pentagonal structures in porous carbons are the main active sites for CO2 reduction.

ADVANCED MATERIALS INTERFACES (2021)

Article Chemistry, Multidisciplinary

Effects of Molecular Properties on Adsorption of Six-Carbon VOCs by Activated Carbon in a Fixed Adsorber

Show-Chu Huang et al.

Summary: Gravimetric adsorption equipment with a micro-balance was used to measure the adsorption of volatile organic compounds (VOCs) by activated carbon in the temperature range of 288 to 313 K. The results showed that nonpolar or weakly polar substances with smaller molecular weights were more easily adsorbed by the activated carbon, and increasing temperature had a negative impact on adsorption equilibrium constants. The Toth adsorption isotherm model fitting results indicated good consistency between experimental data and model predictions.

ACS OMEGA (2021)

Article Engineering, Environmental

Adsorption and desorption characteristics of hydrophobic hierarchical zeolites for the removal of volatile organic compounds

Xianfeng Li et al.

Summary: Hierarchical structure zeolites prepared by alkali modification showed enhanced adsorption and desorption properties for VOCs under humid conditions. The important parameters for p-xylene adsorption were pore diameter and Si/Al ratio, which should be optimized simultaneously for satisfactory adsorption capacity. The alkali modification not only improved the utilization efficiency of the adsorption sites, but also facilitated desorption, crucial for adsorbing materials.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Synergistic effect of Pt/Ce and USY zeolite in Pt-based catalysts with high activity for VOCs degradation

Yijun Shi et al.

Summary: Pt/Ce-USY catalysts show superior activity for DCE degradation compared to Pt/USY catalysts, owing to the synergistic effect between abundant acid sites and strong oxidizing sites. For non-chlorinated VOCs degradation, both Pt/USY-r and Pt/Ce-USY-r catalysts exhibit good low-temperature activity, with low T-90 values for benzene, ethyl acetate, and n-hexane degradation, attributed to the active Pt species dispersed on the surface of USY zeolite. The loading of Pt promotes the deep oxidation of CH3Cl and C2H3Cl intermediates to CO2 and inhibits carbon deposition, increasing the durability of the catalyst for VOCs degradation, mainly due to the strong Pt-CeO2 interaction.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Engineering, Environmental

In-situ synthesis of Z-Scheme MIL-100(Fe)/α-Fe2O3 heterojunction for enhanced adsorption and Visible-light photocatalytic oxidation of O-xylene

Lu Chen et al.

Summary: The MIL-100(Fe)/?-Fe2O3 photocatalysts showed high efficiency in the PCO of VOCs, with a remarkable o-xylene removal rate reaching 100% under 250W xenon lamp irradiation. The hybrid material exhibited a large specific surface area and evenly distributed active sites for effective adsorption of target molecules, suggesting potential for air purification applications. Additionally, the reversible conversion of Fe(III) and Fe(II) under light irradiation plays a key role in the oxidation of o-xylene and generation of reactive radicals in the Z-scheme structure.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Environmental Sciences

Facile synthesis of tailored mesopore-enriched hierarchical porous carbon from food waste for rapid removal of aromatic VOCs

Yuxuan Yang et al.

Summary: This study successfully synthesized a series of mesopore-enriched hierarchical porous carbons for rapid adsorption of aromatic volatile organic compounds. The PC/BCs showed larger pore volume and higher adsorption capacity, with 60% mesoporous structure contributing significantly to the rapid capture of VOCs. Furthermore, the PC/BCs also demonstrated excellent thermal regeneration performance for more than four runs.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Engineering, Chemical

Adsorption of volatile organic compounds by mesoporous graphitized carbon: Enhanced organophilicity, humidity resistance, and mass transfer

Tao Chen et al.

Summary: In this study, a porous graphitized carbon (PGC) with improved hydrophobicity and well-developed mesopores was introduced to overcome the issues faced when using activated carbons (ACs) as adsorbents. PGC exhibited enhanced adsorptive affinity for VOCs, especially nonpolar ones, and maintained high adsorption capacity even at high relative humidity. Moreover, PGC showed superior overall mass transfer coefficients and shortened mass transfer zone compared to AC, making it a promising adsorbent for VOC removal, especially under humid conditions.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Nanoscience & Nanotechnology

Carbon Nanoflakes and Nanotubes from Halloysite Nanoclays and their Superior Performance in CO2 Capture and Energy Storage

Kavitha Ramadass et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Review Engineering, Chemical

Adsorption materials for volatile organic compounds (VOCs) and the key factors for VOCs adsorption process: A review

Xiuquan Li et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2020)

Review Engineering, Environmental

A critical review on VOCs adsorption by different porous materials: Species, mechanisms and modification methods

Lingli Zhu et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

Review Environmental Sciences

Effects of air pollutants on the transmission and severity of respiratory viral infections

Jose L. Domingo et al.

ENVIRONMENTAL RESEARCH (2020)

Article Materials Science, Multidisciplinary

Tuning nitrogen species on natural biomass derived porous carbon for efficient acetone adsorption

Yuxiang Ji et al.

MATERIALS CHEMISTRY AND PHYSICS (2020)

Article Green & Sustainable Science & Technology

Atmospheric diffusion profiles and health risks of typical VOC: Numerical modelling study

Ting Zhang et al.

JOURNAL OF CLEANER PRODUCTION (2020)

Review Engineering, Environmental

Adsorption of VOCs onto engineered carbon materials: A review

Xueyang Zhang et al.

JOURNAL OF HAZARDOUS MATERIALS (2017)

Review Green & Sustainable Science & Technology

Investigation of graphene-based systems for hydrogen storage

Hamid Ghorbani Shiraz et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2017)

Article Nanoscience & Nanotechnology

Exploring and Exploiting the Effect of Solvent Treatment in Membrane Separations

Mayamin Razali et al.

ACS APPLIED MATERIALS & INTERFACES (2017)

Article Chemistry, Physical

Post-plasma catalytic technology for the removal of toluene from indoor air: Effect of humidity

J. Van Durme et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2009)