Article
Chemistry, Multidisciplinary
Zhenyuan Ji, Lizhi Chen, Guanxiang Tang, Jiali Zhong, Aihua Yuan, Guoxing Zhu, Xiaoping Shen
Summary: A facile method was developed to fabricate phosphate-functionalized Fe2O3 nanosheets supported by reduced graphene oxide. The resulting material exhibited excellent capacitance and cycling stability, making it suitable for high-performance supercapacitors.
Article
Chemistry, Multidisciplinary
Chengchen Zhang, Jianbo Tang, Wanjie Xie, Francois-Marie Allioux, Zhenbang Cao, Joanna M. Biazik, Mohammad Tajik, Fei Deng, Yi Li, Roozbeh Abbasi, Mahroo Baharfar, Maedehsadat Mousavi, Dorna Esrafilzadeh, Kourosh Kalantar-Zadeh
Summary: This study investigates the impact of inorganic particle density on the migratory behaviors of macrophages. The results demonstrate that higher particle density leads to decreased mobility of macrophages. This finding serves as a reminder to consider particle density in the design of biological applications.
Article
Chemistry, Applied
Caroline Bender, Dominic Stoll, Melanie Huch, Christoph Weinert, Andreas Doetsch, Hannah Draeger, Judith Keller, Sabine Kulling, Mirko Bunzel
Summary: This study investigated the fermentation kinetics and structural differences of six commercial pectins from citrus, apple, and sugar beet. The results showed that different structural units of pectins might undergo fermentation in different sections of the colon, potentially affecting their nutritional properties.
CARBOHYDRATE POLYMERS
(2023)
Article
Engineering, Chemical
Qian Cheng, Guangjun Mei, Wei Xu, Qinzhi Yuan
Summary: Four kinds of ionic liquids (ILs) with different counterions were used as collectors in flotation tests for pure quartz and quartz-hematite mixed ore. The ILs showed excellent collection performance for pure quartz and improved collecting capacity compared to DDA. The selection of ILs as collectors also led to better beneficiation efficiency for the mixed ore, especially when using imidazole ILs with chlorine and hexafluorophosphate ligands. The study also provides insights into the adsorption mechanisms of ILs and DDA on quartz surfaces through XPS, IR, and Zeta potential analysis.
MINERALS ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Fei Wang, Lixue Xia, Xin Li, Weixiang Yang, Yan Zhao, Jian Mao
Summary: This study synthesized a hybrid of nano-Fe3O4 with reduced graphene oxide via an in situ redox hydrothermal approach, which exhibited excellent performance as an NRR catalyst. The superior NRR performance is attributed to the chemical coupling effect between rGO and nano-Fe3O4 particles, which enhances the binding affinity to N-2 molecules and lowers the free energy of the limiting reaction step.
ENERGY & ENVIRONMENTAL MATERIALS
(2021)
Article
Chemistry, Applied
Na Liu, Wenna Yang, Xia Li, Ping Zhao, Yu Liu, Lanping Guo, Luqi Huang, Wenyuan Gao
Summary: The properties of citrus peel pectins (CPPs) obtained from different cultivars and growth regions were compared. The physicochemical features of CPPs were investigated, including molecular weight distribution, monosaccharide composition, thermal behaviors and flow behaviors. It was found that different cultivars and growing areas had significant effects on CPPs. Some CPPs exhibited superior antioxidant activity, while others showed excellent functional properties. The study also identified the factors that contributed to the thermal stability and viscosity of CPPs, as well as their antioxidant activity.
Article
Engineering, Chemical
Sara Abdi, Masoud Nasiri, Shushan Yuan, Junyong Zhu, Bart Van der Bruggen
Summary: This study explored the modification of PES ultrafiltration membranes using HFO particles to enhance super-hydrophilic properties, comparing different surface modifications and optimal conditions for membrane performance. The synthesized super-hydrophilic membrane showed high water flux, low fouling, and high flux recovery ratio in separating oil-water emulsions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Xin Cheng, Jingquan Wang, Bo Yang, Chengjin Wang, Wenhai Chu, Hongguang Guo
Summary: The interaction of antibiotics with metal ions in aquatic environments can form complexes, which can affect the migration, transformation, and reactivity of residual antibiotics. This study demonstrates the photolysis of Fe(III) by UV irradiation at pH 3.5 for the degradation of the antibiotic compound tetracycline (TET). The binding sites for the complexation between Fe(III) and TET were determined, and the complexation stoichiometry was analyzed.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Thermodynamics
Yuan Wang, Chao Shen, Zhihao Wan, Zhong Luo, Yang Yao
Summary: The deposition of fouling is affected by the rate of deposit and removal, which are associated with sticking probability and deposit bond strength. The relationship between water velocity and sticking probability has not been thoroughly studied. Experimental results showed that the asymptotic fouling resistance increased with decreasing water velocity. Simulation results indicated that sticking probability was proportional to surface temperature and decreased with increasing water velocity. Water velocity could affect the characteristics of fouling deposition. Plain tubes had higher sticking probability compared to enhanced tubes and were more sensitive to flow, affecting deposit bond strength. The internal structure of enhanced tubes influenced fouling deposition by altering the flow field near the wall.
HEAT AND MASS TRANSFER
(2022)
Article
Multidisciplinary Sciences
Mirco Kaponig, Andre Moelleken, Hermann Nienhaus, Rolf Moeller
Summary: The basic process of contact electrification between two metals involves discharge of the sphere upon contact, followed by recharging upon disruption of the electrical contact. The excess charge increases with contact area.
Article
Chemistry, Applied
Ying Yu, Jinming Peng, Yangyang Jia, Qingyun Guan, Gengsheng Xiao, Chunmei Li, Shanshan Shen, Kaikai Li
Summary: This study investigated the structural and functional characteristics of persimmon pectin extracted from unripe and ripe persimmons. The results showed that unripe persimmon pectin had more stable emulsifying properties and resulted in higher production of short chain fatty acids during gut microbiota fermentation. These findings provide valuable information for the utilization of persimmon pectin.
Article
Geochemistry & Geophysics
Christopher H. Gammons, Sara C. Edinberg, Stephen R. Parker, Yasumasa Ogawa
Summary: The study investigated the geochemical characteristics of Chicago Gulch, one of the three radiating watersheds on Red Mountain in central Montana. Results showed acidic headwaters and rising pH downstream, as well as metal ion and solute loads distribution. Metal pollution in water samples exceeded environmental standards, with particularly high lead concentrations in the headwaters indicating a possible unmined lead-sulfide deposit.
APPLIED GEOCHEMISTRY
(2021)
Article
Engineering, Environmental
Xinyue Wang, Hans A. van der Sloot, Kevin G. Brown, Andrew C. Garrabrants, Zhiliang Chen, Bruce Hensel, David S. Kosson
Summary: Three primary mechanisms controlling oxyanion retention in coal fly ashes were identified, and the leaching behavior of six different oxyanions was studied. The study found that the calibration of adsorption reactions and controlling solid phases improved the simultaneous leaching predictions of oxyanions.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Geosciences, Multidisciplinary
Xueying Wang, Tongcheng Han, Li-Yun Fu
Summary: This study investigated the anisotropic elastic properties of different montmorillonites under various layer charge densities and distributions through molecular dynamic simulations. It was found that the in-plane compressional coefficients decrease with increasing layer charge density, while the out-of-plane compressional coefficients vary depending on the distribution of layer charges. The shear coefficients were not significantly influenced by the layer charge density and distribution. The results provide insights into how the density and distribution of layer charges affect the anisotropic elastic properties of montmorillonites.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Shengnan Cui, Linglin Zhou, Di Liu, Shaoxin Li, Li Liu, Shengyang Chen, Zhihao Zhao, Wei Yuan, Zhong Lin Wang, Jie Wang
Summary: The dielectric enhancement effect greatly improves the output performance of TENGs, with significant enhancements seen in both AC-TENG and DC-TENG. The inclusion of a dielectric layer with leakage performance is crucial for continuous output in DC-TENG.
Article
Chemistry, Physical
Viktoria Milkova, Tsetska Radeva
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2015)
Article
Biochemistry & Molecular Biology
Viktoria Milkova, Kamelia Kamburova, Randall Cameron, Tsetska Radeva
Article
Chemistry, Physical
Viktoria Milkova, Tsetska Radeva
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2013)
Article
Chemistry, Physical
K. Kamburova, V. Milkova, Ts. Radeva
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2014)
Article
Chemistry, Physical
Viktoria Milkova
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2014)
Article
Chemistry, Physical
Viktoria Milkova, Kamelia Kamburova, Tsetska Radeva
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2014)
Article
Biophysics
Viktoria Milkova, Kamelia Kamburova, Tsetska Radeva
COLLOIDS AND SURFACES B-BIOINTERFACES
(2013)
Article
Chemistry, Physical
V. Milkova, Ts. Radeva, A. Stoimenova
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2008)
Article
Physics, Condensed Matter
V. Milkova, Ts Radeva
JOURNAL OF PHYSICS-CONDENSED MATTER
(2010)
Article
Chemistry, Multidisciplinary
Viktoria Milkova, Kamelia Kamburova, Tsetska Radeva, Maria Stoimenova
Article
Chemistry, Multidisciplinary
Danielle Goveia, Jose Paulo Pinheiro, Viktoria Milkova, Andre Henrique Rosa, Herman P. van Leeuwen
Article
Chemistry, Physical
Viktoria Milkova, Francisco M. Goycoolea
COLLOID AND POLYMER SCIENCE
(2020)
Article
Chemistry, Applied
Viktoria Milkova
Summary: The present study investigated the electrokinetic behavior of lecithin-stabilized oil/water emulsions in the presence of chitosan oligosaccharides, revealing the influence of different degrees of acetylation on the properties of chitosan. The experimental results confirmed the predominant contributions of hydrophobic and electrostatic interactions between chitosan monomers and the lecithin-covered droplet surface, depending on the degree of acetylation.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Francisco M. Goycoolea, Viktoria Milkova
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2017)