Article
Engineering, Chemical
Ru-Ling Tseng, Hai Nguyen Tran, Ruey-Shin Juang
Summary: Temperature has a significant effect on adsorption processes, particularly on adsorption equilibrium. While the effect of temperature on adsorption kinetics has been less explored, likely due to a lack of a simple and suitable kinetic model. This study analyzed kinetic data using the Elovich equation and found that most adsorption processes had an activation energy in the range of 12.1 to 25.6 kJ mol(-1).
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Materials Science, Multidisciplinary
Rohollah Ezzati, Saeid Ezzati, Maryam Azizi
Summary: This study demonstrates the accuracy of the Langmuir adsorption rate equation in calculating the adsorption rate constant. It also investigates the derivation conditions of the pseudo-first-order and pseudo-second-order kinetics models from Langmuir kinetics.
Article
Engineering, Environmental
Vanessa F. D. Martins, Carlos Miguel, Jonathan C. Goncalves, Alirio E. Rodrigues, Luis M. Madeira
Summary: This study developed and implemented a one-dimensional heterogeneous dynamic fixed-bed model for CO2 capture at high temperatures. The model successfully predicted the equilibrium and kinetics of CO2 adsorption on a K-promoted hydrotalcite. The model considered two different adsorption sites and incorporated a change in activation energy to explain the observed capacity loss. The model was validated under wet conditions, making it more robust for process optimization and industrial design.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Hai Nguyen Tran
Summary: The initial periods of adsorption kinetics are crucial for estimating the initial adsorption rate and rate constant. Applying the linear equations of the pseudo-second-order (PSO) kinetic model helps identify potential errors in the experimental data during the initial periods. After removing these error points, the experimental data can be well-fitted with the PSO model.
Article
Chemistry, Physical
Stefano Brandani
Summary: Batch adsorption experiments are commonly used to obtain equilibrium and kinetic information in liquid systems, but kinetic results should be carefully analyzed to avoid incorrect interpretation of mass transport mechanisms based on empirical models. It is recommended to analyze experiments using phenomenological models to obtain physical parameters applicable to other systems.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2021)
Article
Chemistry, Physical
Changqian Rao, Wei Lin, Zhuoyi Song
Summary: The refractory period (RP) is the waiting time between signals that can induce complex signaling dynamics. However, its molecular mechanisms are still unclear. This study developed a direct method to estimate the RP distribution for a class of second-order reaction systems with nonconstant reaction rates. The method provides an alternative to traditional modeling methods and could enhance understanding of real-world biochemical processes.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Boleslav Taraba, Petra Bulavova
Summary: A model of second-order (SO) adsorption kinetics was used to describe and verify the adsorption of phenol/lead (II) on natural coal and activated carbon samples. The comparison with the pseudo-second-order (PSO) kinetics model showed that the SO kinetics satisfactorily described the initial stage of the adsorption process, while the PSO model fit well with the experimental data up to adsorption equilibrium. The possible reason for the different fit of the models to adsorption data was elucidated.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
K. R. Sinju, B. Bhangare, A. Pathak, S. J. Patil, N. S. Ramgir, A. K. Debnath, D. K. Aswal
Summary: A novel ZnO nanowire-based e-nose was developed to successfully discriminate H2S and NO2 test gases. Different sensitizers were used to modify the ZnO nanowires and annealed to form heterojunctions, with the gas sensing results interpreted using graphical and multivariate data analysis techniques. The e-nose showed qualitative and quantitative discrimination capabilities for the two test gases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Physical
Qi He, Junchen Liu, Jiaming Geng, Xindi Sun, Yongcun Feng, Jingen Deng, Baojun Bai
Summary: Polymer nanogels, elastic nanospheres with 3D network structure, have shown potential in enhancing oil recovery. However, their dynamic adsorption and desorption in porous media are still not well understood. In this study, we conducted experiments to investigate these processes in sandstones, and found that nanogels exhibited rapid adsorption and desorption, with the adsorption density ranging from 0.083 to 0.435 mg/g. The adsorption of nanogels increased with their concentration, core permeability, and salt concentration. Salinity played a more important role in the desorption process due to strong interaction with sandstones. Adsorption layer thickness ranged from 0.67 to 2.14, indicating multilayered processes.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Mathematics, Applied
Velusamy Kavitha, Dumitru Baleanu, Jeyakumar Grayna
Summary: In this paper, we discuss the concept of pseudo almost automorphic solutions to fractional neutral differential equations with impulses using measure theory. Our main results are obtained through semigroup theory, Krasnoselskii's fixed point theorem, and the properties of measure theory. An example is given to illustrate the developed ideas in this work.
Article
Mathematics, Applied
Danping Ding, Kai Wang
Summary: This paper investigates the blow-up solution and its rate near the traveling waves of the second-order Camassa-Holm equation. A sufficient condition for the existence of blow-up solution is obtained through a clever method, and a relationship is established between the blow-up time and rate of the solution and the residual's.
NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS
(2021)
Article
Infectious Diseases
Chanat Chokejaroenrat, Chainarong Sakulthaew, Khomson Satchasataporn, Daniel D. Snow, Tarik E. Ali, Mohammed A. Assiri, Apichon Watcharenwong, Saksit Imman, Nopparat Suriyachai, Torpong Kreetachat
Summary: This study investigated the adsorption capabilities of carbonized leonardite (cLND) for removing antibiotics from water, showing potential for efficient removal. The results demonstrated that cLND samples prepared at 450°C and 550°C effectively adsorbed sulfamethoxazole and enrofloxacin, retaining the antibiotics and serving as a low-cost adsorbent.
Review
Engineering, Electrical & Electronic
Amelia H. Peterson, Shayla M. Sawyer
Summary: Ultraviolet photodetectors have critical applications in various fields, with wide-bandgap metal oxide semiconductors being high performance options. However, the complicated analysis and design of these detectors is hindered by oxygen adsorption and photodesorption. Clarifying these processes may lead to the development of new UV photodetectors with higher efficiency.
IEEE SENSORS JOURNAL
(2021)
Article
Mathematics
Yingzhu Wu, Yuanhong Yu, Jinsen Xiao
Summary: This research establishes new oscillation criteria for a class of damped second order neutral differential equations with noncanonical operators, extending and improving upon existing literature. Additionally, examples are provided to demonstrate the significance of the results.
Article
Engineering, Chemical
Jizhong Huang, Fang Liu, Junfang Zhang
Summary: This study provides an explanation of the relationship between the pseudo-first-order and pseudo-second-order models in adsorption kinetics, as well as a quantitative understanding of arbitrary-order preset models. It was found that adsorption progress factor curves for different rate orders intersect at the half-time point, and the adsorption progress factor increases with an increase in rate order when the time is shorter than the half-time, but decreases with time passing over the half-time point. Furthermore, the higher the rate order, the longer the time needed to reach equilibrium, and a guideline is provided to determine the order of rate equation for describing experimental data.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)