Article
Agricultural Engineering
Zhikai Yin, Xiaolong Yang, Xingyu Wang, Shoubing Wang
Summary: The study found that the consortium of ammonia-oxidizing bacteria has a wide pH tolerance range and can adapt well under acidic and alkaline conditions. With a decrease in temperature, the rates of ammonium removal and nitrate accumulation are significantly reduced. Additionally, the consortium can survive in solutions containing copper ions and iron ions.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Michelle C. B. Siqueira, Juana C. C. Chagas, Joao Paulo I. S. Monnerat, Carolina C. F. Monteiro, Robert E. Mora-Luna, Silas B. Felix, Milena N. Rabelo, Fernando L. T. Mesquita, Juliana C. S. Ferreira, Marcelo A. Ferreira
Summary: In semiarid regions, combining cactus cladodes with sugarcane bagasse plus urea in sheep diets can improve energy intake, reduce rumen pH fluctuations, and increase volatile fatty acid production, making it a recommended option for sustainable livestock production.
Article
Agricultural Engineering
Jiefei Mo, Liqing Xin, Changxun Zhao, Yong Qin, Qiong Nan, Qingqing Mei, Weixiang Wu
Summary: This study compares nitrogen transformation and loss between bioaugmented mechanical composting (BMC) and conventional pile composting (CPC), finding that the total nitrogen loss in BMC is 6.87-39.32% lower than that in CPC. The main pathways to prevent nitrogen loss in BMC include reducing NH3 by avoiding a sharp increase in pH and transforming preserved NH4+-N into recalcitrant nitrogen reservoir via enhanced ammonia assimilation.
BIORESOURCE TECHNOLOGY
(2023)
Article
Food Science & Technology
Fengfeng Xu, Yamei Yan, Xiaoqian Huang, Dawei Yun, Chao Tang, Jun Liu
Summary: In this study, freshness indicators were prepared by anchoring black wolfberry anthocyanins into a starch/polyvinyl alcohol matrix and adjusting the pH value. The pH value was found to greatly affect the morphology and hydrogen bonding strength of the indicators. The indicators prepared at pH 3.0 showed the highest barrier ability and antioxidant activity. The indicators prepared at pH 3.0, 4.0, and 5.0 exhibited remarkable color changes when exposed to buffer solutions and ammonia gas. The indicator prepared at pH 3.0 effectively indicated the freshness of chilled shrimp through color changes.
Article
Environmental Sciences
Xiaoyuan Zheng, Mengxuan Shen, Zhi Ying, Yuheng Feng, Bo Wang, Binlin Dou
Summary: The study found that HTC temperature and feedwater pH had a significant impact on NH4+-N concentration in process water (PW), which further influenced the transformation of NH4+-N. While P transformation during HTC was significantly influenced by HTC temperature and feedwater pH, its transformation was dependent on PW pH.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Patrick Munyensanga, Meriame Bricha, Khalil El Mabrouk
Summary: A native glass nanoparticle composition called BGNPs, based on a binary system, was synthesized using a modified Stober process with a surfactant. The glass was then doped with silver (Ag) and its acellular bioactivity was studied. The characterization of the bioactive glasses was done using various techniques including TGA, FTIR, BET and BJH, XRD, NMR, and SEM-EDS. The results showed the formation of apatite layers on the surface of the nanoparticles, indicating their bioactivity, and confirmed the presence of Ag-doped BGNPs.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Metallurgy & Metallurgical Engineering
Uchitta Vashist, Farzaneh Sadri, Yeonuk Choi, Ahmad Ghahreman
Summary: Thiosulfate gold leaching is a novel method for gold leaching, with a focus on reducing thiosulfate consumption and efficient gold leaching through interaction with magnesium and copper(II). The experiments show that high pH values are beneficial for gold leaching, and the ammonium thiosulfate process has a high gold recovery rate, making it a low-cost, efficient, and environmentally friendly method.
Article
Biodiversity Conservation
Weifang Hu, Mianrun Chen, Xue Lan, Guoliang Li, Bin Wang, Dong Yao Sun, Xianbiao Lin
Summary: This study found significant shifts in potential ammonia oxidation rates (PARs) and gene abundances of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) along different salinity gradients. The PARs were higher under high salinity conditions, and the AOB gene abundance was greater than AOA under moderate and high salinity. This has important implications for nitrogen cycling in estuarine sediments.
ECOLOGICAL INDICATORS
(2022)
Article
Chemistry, Multidisciplinary
Jinxin Wang, Kaimin Zhang, Safiyye Kavak, Sara Bals, Vera Meynen
Summary: The Stober method is an important process for synthesizing inorganic (nano)materials, but it uses a large amount of organic solvent. This study found that the organic solvent can be omitted in the Stober method, and silica particles with the same size can be successfully synthesized without addition of organic solvents. This method has potential applications in the synthesis of other materials.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Environmental Sciences
Sijie Wei, Guanjie Zhuang, Lirijian Cheng, Shoubing Wang
Summary: The study found that the pH values fluctuated during the proliferation of Microcystis aeruginosa but tended to stabilize, with the optimal pH value being 9.55. It suggests adjusting the environmental pH value below 8.0 can delay cyanobacterial outbreaks.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Yoshiyuki Komoda, Kaoru Ishibashi, Kentaro Kuratani, Kosuke Suzuki, Naoto Ohmura, Hironori Kobayashi
Summary: The drying process of electrode slurry is vital for achieving better electrochemical performance in LiB, but it remains poorly understood. The lack of information on slurry microstructure also complicates the solution. This study prepares and characterizes cathode slurries with different internal structures using rheological properties. The drying process of the coating layer is evaluated by measuring film shrinkage. It is found that uniform mixing of coarse particles of active material and the network structure of acetylene-black particles leads to a low drying rate, particle segregation, and poor cycle performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Plant Sciences
Rasheed Ahmed, Lili Mao, Yuzhong Li, Junjun Ding, Wei Lin, Shakeel Ahmed, Asad Abbas, Waseem Ahmed
Summary: The aim of this study is to analyze the variations in plant-available nitrogen concentrations in the soil profile and compare the effects of different fertilizers on Chinese cabbage yield. The results showed that urea, chicken manure, and potassium nitrate fertilizers significantly increased the yield. Additionally, significant variations in soil pH and electrical conductivity were observed for different treatments and over time.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Boyuan Zhu, Ziyang Xu, Yadong Ning, Guangye Wei, Jingkui Qu
Summary: This study explores the effects of pH value and ammonia concentration during co-precipitation reactions on the preparation of Ni-rich cathode material precursors. It establishes the correlation between precursor microstructure parameters and macroscopic particle characteristics, as well as the crystal structure of active materials and electrochemical properties alongside precursor particle characteristics. The results demonstrate that higher pH value and appropriate ammonia concentration lead to precursors with higher tap density, which are more likely to produce nickel-rich active materials with superior crystal structure and electrochemical properties. The optimal process conditions within the experimental range were determined to be pH = 11.8 and ammonia concentration = 0.97 mol l-1.
SOLID STATE SCIENCES
(2023)
Article
Chemistry, Physical
Yian Wang, Xueping Qin, Minhua Shao
Summary: This study investigates the effects of Cu crystal facets and pH on the electrocatalytic nitrate reduction reaction using a hybrid model. Results show that in acidic media, both Cu(100) and Cu(111) facets produce NH3 through the formation of specific intermediates. In alkaline media, Cu(100) prefers NH2OH formation, while Cu(111) favors NH3 formation. Overall, the (100) facet exhibits higher activity towards nitrate reduction, especially at higher pH levels.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Yeonghun Yun, Devthade Vidyasagar, Minho Lee, Oh Yeong Gong, Jina Jung, Hyun-Suk Jung, Dong Hoe Kim, Sangwook Lee
Summary: The study explores the effects of the novel aprotic Lewis-base solvent TMP on the formation of perovskite thin films and the photovoltaic properties of PSCs. PSCs based on TMP/DMF-mixed solvent exhibit higher average efficiency and smaller hysteresis compared to those based on DMSO/DMF or DMF-only solvents, attributed to the lower defect density of the TMP/DMF-derived perovskite film.
Article
Materials Science, Ceramics
Wenjia Jing, Jianfeng Yang
Summary: In this study, a fluoride-mediated solvothermal approach was used to construct 3D monocrystalline ZrO2 architectures through oriented attachment of ZrO2 nanoparticles. The preferential adsorption of fluoride on specific crystallographic planes played a critical role in promoting the oriented aggregation of ZrO2 nanoparticles. After calcination, the dense monocrystalline structures transformed into porous monocrystalline structures with well-dispersed open pores, showing improved performance in photocatalytic degradation and adsorption.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Baoqiang Hou, Haixia Guo, Nanlong Zhang, Qiang Zhi, Bo Wang, Jianfeng Yang
Summary: This study prepared and tested graphite flakes/copper composites with specific dihedral angles, showing an increase in friction coefficient with larger dihedral angles due to adhesion, and a decrease due to ploughing. The friction coefficients were lower at 30 to 60 degrees, and the wear rate decreased monotonically as the dihedral angle increased.
Article
Materials Science, Ceramics
Wenjia Jing, Baoqiang Hou, Jinxiao Wang, Qiang Zhi, Jianfeng Yang, Bo Wang
Summary: This study reports the successful synthesis of fluorine-terminated urchin-like ZrO2 hollow microspheres with exposed (010) facets using a fluoride mediately solvothermal method. Density functional theory calculations confirm the stabilization effect of fluorine adsorption on (010) surfaces. Furthermore, the fluorinated ZrO2 hollow microspheres exhibit tunable photocatalytic selectivity in dye degradation.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Composites
Zhong-Yu Wang, Xiao-Nan Zhou, Zi-Xuan Li, Song-Song Xu, Liu-Cheng Hao, Jun-Ping Zhao, Bo Wang, Jian-Feng Yang, Kozo Ishizaki
Summary: By mixing alumina particles with different diameter ratios, the thermal conductivity of polymer composites can be optimized, leading to higher thermal conductivity and stability. The proper proportion and particle size of hybrid fillers can enhance the thermal properties of composites.
POLYMER COMPOSITES
(2022)
Article
Chemistry, Multidisciplinary
Xiaonan Zhou, Songsong Xu, Zhongyu Wang, Liucheng Hao, Zhongqi Shi, Junping Zhao, Qiaogen Zhang, Kozo Ishizaki, Bo Wang, Jianfeng Yang
Summary: This article presents a facile and effective method to fabricate anisotropic polymer composites using biotemplate ceramization technology. By replicating the hierarchical microstructure of wood in the cellular biomass derived SiC framework, an epoxy composite with vertically aligned dense SiC microchannels is achieved, which exhibits interesting properties including high thermal conductivity, significant enhancement efficiency, and outstanding anisotropic thermal conductivity ratio.
Article
Materials Science, Ceramics
Nan-Long Zhang, Yu-Chen Deng, Bao-Qiang Hou, Qiang Zhi, Hua Cheng, Jian-Feng Yang, Bo Wang, Wei Wang
Summary: In this study, highly porous SiC frameworks were fabricated, showing excellent corrosion resistance, oxidation resistance, and high-temperature thermal stability, making them a good candidate for high-temperature thermal insulators.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Zhilei Wei, Siyu Liu, Dangui Liu, Jinling Wu, Hongyan Xia, Bo Wang, Zhongqi Shi
Summary: W/Si3N4 functionally graded materials were fabricated via spark plasma sintering for sealing liquid metal batteries. By adjusting the MgO content of the central Si3N4 layer, thermal stress of the products was effectively reduced, leading to good interface bonding and high performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Qiang Zhi, Shan Zhao, Nan-Long Zhang, Bao-Qiang Hou, Bo Wang, Jian-Feng Yang
Summary: Novel highly porous fibrous Si3N4 three-dimensional (3D) scaffolds were fabricated through directional freezing and high-temperature sintering, which exhibited ultrahigh porosities and superior compressive strength.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Songsong Xu, Xiaonan Zhou, Qiang Zhi, Junjie Gao, Liucheng Hao, Zhongqi Shi, Bo Wang, Jianfeng Yang, Kozo Ishizaki
Summary: Inspired by the transport behavior of water and ions through the aligned channels in trees, the researchers demonstrate a facile, scalable approach for constructing biomorphic cellular Si3N4 ceramic frameworks with well-aligned nanowhisker arrays. The porous Si3N4 ceramics exhibit outstanding thermal conductivity, flexural strength, and anisotropy, making them promising for multifunctional ceramics.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Materials Science, Multidisciplinary
Zhicheng Wu, Jiasheng Fan, Xieyu Yuan, Yuxiao Zhao, Bo Wang, Qiaogen Zhang, Licheng Li
Summary: In this study, PAA films prepared from polycrystalline pure Al foils were used to investigate the relationship between crystallographic orientation and PAA morphology. A spatial mapping relationship was established using a scratch marking method, and it was found that the size of LDG regions in PAA was positively correlated with grain boundary misorientation. The effect of misorientation on LDG was explained using a volume expansion model. This study contributes to a better understanding of the PAA longitudinal growth mechanism.
