Article
Engineering, Environmental
Luqman Hakim Mohd Azmi, Pavani Cherukupally, Elwin Hunter-Sellars, P. Bradley Ladewig, R. Daryl Williams
Summary: Competition for adsorption sites between atmospheric moisture and volatile organic compounds can significantly impact the VOC removal performance of metal-organic framework adsorbents like MIL-101. In this study, a vapor phase deposition of polydimethylsiloxane (PDMS) was used to create more hydrophobic MIL-101 composites, resulting in enhanced internal hydrophobicity and intact porosity. The MIL-101-PDMS composite showed superior performance in capturing toluene, exhibiting higher adsorption capacity and overall capture rate compared to pristine MIL-101, and maintaining excellent structural stability and adsorption performance after multiple sorption/desorption cycles.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Kaan Isinkaralar
Summary: The continuous presence of benzene vapor in both indoor and outdoor contamination poses significant long-term health risks to the living environment. This study successfully synthesized biomass-derived porous carbon materials with excellent benzene adsorption capacity and recyclability. The findings provide valuable insights for future research on benzene removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Hantian Li, Xishan Zhou, Tao Wang, Jiawei Wang, Yongsheng Zhang, Wei-Ping Pan
Summary: Zeolite-templated carbon (ZTC), a three dimensional ordered carbon material, was synthesized and used as an efficient adsorbent for the removal of volatile organic compounds (VOCs). The ZTC sample prepared at 600 degrees C for 7 h exhibited the largest specific surface area and the best adsorption capacity for toluene, benzene, and m-xylene. The presence of O-2, SO2, and H2O influenced the adsorption capacity of VOCs, with O-2 initially promoting the removal ability and H2O having the most inhibitory effect.
Article
Engineering, Environmental
Xiaojun Zhou, Xuejiao Dong, Ruixue Ma, Xinke Wang, Fenghao Wang
Summary: Fabrics are widely distributed in residential buildings and have strong adsorption properties for volatile organic compounds due to their porous structure. The effects of temperature and humidity on the partitioning behavior of VOCs on fabrics have not been quantitatively analyzed. A novel prediction model for the fabric partition coefficient shows improved accuracy in various conditions.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mingsheng Yang, Qian Zhao, Huige Ma, Rui Li, Yan Wang, Rongkun Zhou, Jieyuan Liu, Xinyu Wang, Yuxin Hao, Jiayi Ren, Zilong Zheng, Naibo Zhang, Mingjun Hu, Jun Luo, Jun Yang
Summary: Due to the small size and high mobility of protons in water, aqueous proton batteries are considered as attractive candidates for high-power and ultralow-temperature energy storage devices. In this study, a new C4N polymer with uniform micropores and large specific surface area is prepared and used as the electrode for proton batteries. Multi-walled carbon nanotubes (MWCNT) are introduced to enhance porosity and conductivity, leading to better performance at both room and low temperatures. The battery shows unprecedented cycle stability and capacity retention, and a novel anti-freezing electrolyte is developed to improve ionic conductivity at low temperatures. The study aims to provide a comprehensive solution for constructing high-performance ultralow-temperature aqueous proton batteries.
Article
Chemistry, Physical
Yuntai Xi, Fang Dong, Xin Xu, Shixing Wu, Zhicheng Tang, Jiyi Zhang
Summary: In this study, a novel 3D-OMm-Co3O4/SiO2-0.5AP monolithic catalyst was successfully constructed using 3D printing technique. The ordered macropore-mesoporous structure of the catalyst improves the diffusion and adsorption of reactants, while the hierarchical Co-phyllosilicate ultrathin nanosheets provide more active species and acid sites, leading to superior catalytic activity in benzene oxidation.
Article
Environmental Sciences
Hoang Minh Giang, Nguyen Thi Huyen Nga, Eldon R. Rene, Hoang Ngoc Ha, Sunita Varjani
Summary: Biofilter (BF) is a versatile gas treatment technology for removing volatile organic compounds (VOCs) from contaminated gas streams. This study applied artificial neural networks (ANN) to determine the relationship between flow rate, pressure drop, inlet concentration, and removal efficiency in the BF treating gas-phase benzene and xylene mixtures. The model's performance was evaluated using a cross-validation method, and the results showed that the ANN model with a topology of 4-4-2 performed the best in predicting the removal efficiency of both pollutants.
ENVIRONMENTAL RESEARCH
(2023)
Article
Public, Environmental & Occupational Health
Alexander C. Mayer, Kenneth W. Fent, Andrea Wilkinson, I-Chen Chen, Steve Kerber, Denise L. Smith, Richard M. Kesler, Gavin P. Horn
Summary: The fire service is increasingly aware of the potential health risks from exposure to hazardous combustion byproducts. Personal protective equipment and interventions have been developed to reduce exposures. This study found that the level of contamination inside the turnout jacket was not affected by the type of PPE ensemble worn, and firefighters may absorb these compounds through the skin.
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2022)
Article
Environmental Sciences
Cameron J. Davidson, John H. Hannigan, Scott E. Bowen
Summary: Combined exposure to BTEX poses clear risks to public health, with more research needed to explore the health and neurobehavioral impacts of these exposures.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Luming Li, Wei Chu, Yan Liu
Summary: The study found that the crystal phases and properties of MnO2 materials affect their catalytic activity and stability in toluene combustion, with alpha-MnO2 showing the best activity but inferior cycle stability, while delta-MnO2 has the easiest reduction property among all investigated manganese oxides.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Jinxu Fang, Zhiwei Huang, Lipeng Wang, Sufeng Guo, Mingxuan Li, Yuchen Liu, Junmou Chen, Xiaomin Wu, Huazhen Shen, Huawang Zhao, Guohua Jing
Summary: In this study, a well-defined model catalyst consisting of single Ag atoms deposited on Co3O4 oxide surfaces was prepared, and the mechanism of benzene combustion and the source of excellent reactivity of Ag were revealed. The single-atom Ag-on-Co3O4 catalyst exhibited excellent activity and stability for benzene combustion. The plausible benzene combustion path over the catalyst was proposed. These findings are significant for understanding surface chemical processes in heterogeneous catalysis and for the rational design of high-performance catalysts.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Kuo Yang, Kai Zhu, Yuanzhe Wang, Ziting Qian, Yizhi Zhang, Zhaoyan Yang, Zhuyuan Wang, Lei Wu, Shenfei Zong, Yiping Cui
Summary: This study demonstrates a powerful gas sensor with both high sensitivity and multiplex detecting ability by introducing new materials and structural design. The sensor achieved a low detection limit in complex gas samples and solved the repeatability issue of traditional SERS substrates. Furthermore, a visual chromatic barcode based on classic least-square analysis was developed to read the composition of samples.
Article
Chemistry, Multidisciplinary
Christian Jansen, Nabil Assahub, Alex Spiess, Jun Liang, Alexa Schmitz, Shanghua Xing, Serkan Goekpinar, Christoph Janiak
Summary: The sorption properties of MOFs (Alfum, MIL-160, DUT-4, DUT-5, MIL-53-TDC, MIL-53, UiO-66, UiO-66-NH2, UiO-66(F)(4), UiO-67, DUT-67, NH2-MIL-125, MIL-125, MIL-101(Cr), ZIF-8, ZIF-11 and ZIF-7) for C-6 were studied. The uptake of larger C-6 molecules cannot be solely explained by surface area and pore volume, but involves the complex micropore structure of the MOF. DUT-4 showed the highest adsorption capacity for benzene, MIL-101(Cr) for cyclohexane, and DUT-5 for n-hexane.
Article
Thermodynamics
Xiaohui Qiao, Xue Sun, Hansen Yang, Hualiang An, Fang Li, Wei Xue, Yanji Wang
Summary: In this study, seven deep eutectic solvents (DESs) were examined for their solubility of benzene, toluene, and ethylbenzene, showing an increase in solubility with temperature. Both hydrogen bond acceptors and donors in the DESs were found to affect solubility, with tetrabutylammonium bromide having the greatest impact. Empirical equations provided a better correlation for the solubilities of the aromatic compounds in the DESs.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2021)
Article
Engineering, Multidisciplinary
Haruhiko Yamasaki, Kohei Kishimoto, Takumi Shimada, Tomoyuki Kuroki, Jinkyu Kang, Dongwook Kim, Tadao Yagi, Masaaki Okubo
Summary: This article evaluates the application of catalytic nonthermal plasma (NTP) technique in controlling the emission of volatile organic compounds (VOCs). A wet-type catalysis plasma reactor is proposed for treating water-soluble VOCs, and different catalysts are used for assessing their performance in removing substances such as toluene. The study shows that the wet-type reactor has a superior particle collection efficiency.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2022)
