Article
Construction & Building Technology
Qiuxing Lei, Lingling Wang, Huaqing Xie, Wei Yu
Summary: A new type of active and passive dual-control smart window has been developed by introducing nanoparticles into hydrogels and combining the advantages of fluid glass, which can intelligently adjust its transparency and control indoor temperature, showing significant energy-saving effects.
BUILDING AND ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
E. Deniz Eren, Mohammad-Amin Moradi, Heiner Friedrich, Gijsbertus de With
Summary: The study investigates the adsorption mechanism of small positively charged silica nanoparticles onto larger polystyrene latex nanoparticles to form hybrid particles. The research identified the optimum conditions for nanoraspberry formation and demonstrated the reversibility and stability of the process. Understanding and controlling the relevant parameters will contribute to better control of nanoraspberry formation and higher-order assemblies.
Article
Chemistry, Applied
K. Lakshmi Kala, G. Anbuchezhiyan, Kavitha Pingili, Pradeep Kumar Singh, V. M. Vel, Kareem Yusuf, Ahmed Muteb Aljuwayid, Md Ataul Islam, David Christopher
Summary: Methamphetamine identification is critical in clinical and forensic laboratories due to its low doses in biological matrices and societal difficulties. Polymeric carbon-based nanocomposites are strong contenders for diffusive solid-phase extraction, thanks to their simple and inexpensive production procedure, as well as excellent selectivity and sensitivity. The developed absorbent, nanographene oxide polypyrrole composite, showed high efficiency in recovering methamphetamine from complex urine substrates. The proposed methodology using a carbon-based adsorbent for diffusive solid-phase extraction demonstrated good repeatability and wide applicability in various facilities.
ADSORPTION SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Wei Rao, Jiamin Yuan, Xiaomin Tang, Kaifeng Lin, Xianzhu Xu, Hongqiang Xia, Yanqiu Jiang, Anmin Zheng, Zhiqiang Liu
Summary: In this study, a diffusive skin effect in zeolites was observed, which promotes the contacts and collisions between reactants and active sites, leading to improved zeolite-catalyzed performance.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Energy & Fuels
Yun Meng, Yutong Tan, Xin Li, Yangjian Cai, Jinqing Peng, Yi Long
Summary: Energy usage in buildings accounts for 40% of global energy consumption, while windows are the least energy efficient part of buildings. The proposed photovoltaic smart window integrates energy modulation, energy generation, and low emissivity functions to improve energy efficiency.
Article
Energy & Fuels
Qiuhua Duan, Laura Hinkle, Julian Wang, Enhe Zhang, Ali Memari
Summary: Research shows that in specific climate conditions, low-e single-pane glazing with condensation effects considered may have adverse effects on energy-saving purposes compared to original single-pane glazing. More careful and comprehensive energy analyses are needed for using low-e products in window energy retrofits.
Article
Green & Sustainable Science & Technology
Zihao Li, Wei Zhang, Lingzhi Xie, Wei Wang, Hao Tian, Mo Chen, Jianhui Li
Summary: The research on the Semi-Transparent Photovoltaic (STPV) Window revealed that its EPBT is 13.8 years and GPBT is 10.4 years, both less than the preset service life of 25 years. Optimization analysis can make the STPV window more economical and sustainable.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Nanoscience & Nanotechnology
Renu Kumari, Jnaneswari Gellanki, Somnath S. Kundale, Ruhan E. Ustad, Tukaram D. Dongale, Ying Fu, Hakan Pettersson, Sandeep Kumar
Summary: Computational efficiency is improved using artificial neural network-based computing. This study focuses on the fabrication of a memristive device with a resistive switching layer that can mimic the behavior of a biological synapse. The incorporation of ZnO nanoparticles into the polymer film allows the fabricated memristive devices to exhibit functionalities closely resembling those of biological synapses.
Review
Chemistry, Multidisciplinary
Yong Hu, Chunhai Fan
Summary: The innovation of DNA hydrogels has led to the development of programmable nanocomposite DNA hydrogels that have potential applications in materials and life sciences. These hydrogels can be designed with tunable physiochemical properties and integrated functionalities, allowing them to respond to external physical cues, exhibit catalytic activities, and be used in cell-substrate engineering and therapeutic agents. The integration of nanocomposite DNA hydrogels with microfluidic systems or DNA surface technology could facilitate the development of modern integrated systems and platforms.
Article
Chemistry, Multidisciplinary
Qianqian Gao, Xuelu He, Lulu He, Jie Lin, Le Wang, Yujiao Xie, Aiguo Wu, Juan Li
Summary: This study investigates the morphological effect of Cu2-xSe nanoparticles on chemodynamic therapy (CDT) and photothermal therapy (PTT). Hollow octahedral Cu2-xSe nanoparticles showed better photothermal and chemodynamic performance in the NIR-II window. Additionally, a therapeutic platform (Cu2-xSe@CQ@NPY) was developed, which holds great potential for achieving synergistic enhancement of CDT/PTT in breast cancer treatment.
Article
Materials Science, Ceramics
Ryan D. Dempsey, Xiaoqing He, Jonathan A. Scott, David W. Lipke
Summary: A powder-based bottom-up processing scheme is used to produce ceramic nanocomposites, involving internal displacement reactions between solid solution powders and metallic reactants. This scheme is demonstrated for the production of titanium carbide nanocomposites with tungsten inclusions. The process involves heat treatment of mixed carbide powders followed by spark plasma sintering, and the resulting microstructures of the nanocomposites closely resemble the building blocks.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Multidisciplinary Sciences
Vinni Thekkudan Novi, Andrew Gonzalez, John Brockgreitens, Abdennour Abbas
Summary: Healthcare associated infections result in numerous hospitalizations and significant costs. Researchers have developed and tested antimicrobial zinc nanocomposite textiles using a novel Crescoating process. These textiles exhibit remarkable antimicrobial properties against common bacteria and fungi, and remain effective even after repeated laundering. They are also found to be non-irritating and hypoallergenic according to dermatological evaluations.
SCIENTIFIC REPORTS
(2022)
Article
Construction & Building Technology
Enguerrand de Rautlin de la Roy, Thomas Recht, Akka Zemmari, Pierre Bourreau, Laurent Mora
Summary: This study compares different machine learning models for window-openings detection during the heating season. The results show that the recurrent neural network (RNN) models with indoor temperature and CO2 concentration perform the best with an average F1-score of 0.78, while the linear discriminant analysis (LDA), support vector machine (SVM), and random forest classifier (RFC) models have slightly lower performances around 0.70-0.72. Additionally, by using the right data transformation, significant results can be achieved with up to 84-88% accuracy in window-opening time detection using only indoor air temperature measurements.
BUILDING AND ENVIRONMENT
(2023)
Article
Environmental Sciences
Sarah Briceno, Carlos Reinoso
Summary: This study revealed the molecular interaction between chitosan, graphene, and CoFe2O4 nanoparticles with commercial glyphosate, and quantitatively measured the removal of glyphosate using a low-cost nanocomposite as bioadsorbent.
ENVIRONMENTAL RESEARCH
(2022)
Article
Thermodynamics
Haixiang Liu, Wei He, Xianghua Liu, Jian Zhu, Hancheng Yu, Zhongting Hu
Summary: This paper proposes a building integrated concentrating photovoltaic window that combines luminescent solar concentrator and thermotropic material. Experimental results show that it can effectively reduce solar heat gain and increase power output, making it suitable for sustainable buildings.
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.