Article
Engineering, Chemical
Shan Wu, Chao Bie, Hao Su, Yun Gao, Xiaoqi Sun
Summary: Two novel salicylic acid derivatives, OOBA and EHOBA, were synthesized for the extraction and separation of Y from ion adsorbed rare earth ores. The study found that OOBA exhibits similar extraction behavior to LREEs and has better selectivities for Y and other HREEs compared to common carboxylic acids. The extraction mechanism of OOBA was determined to be cation exchange. Furthermore, OOBA demonstrated advantages such as low stripping acid concentration, good cycle stability, and minimal loss in the extraction process. A simulated fractional extraction process was developed to separate Y from the Y-enriched HREEs feed liquid, resulting in a Y product with high purity and yield.
MINERALS ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Weiying Wang, Yanqiong Xu, Riming Yan, Zhibin Zhang
Summary: This study demonstrates that utilizing Bacillus sp. ZD 1 and Galactomyces sp. ZD 27 for adsorption and removal of ammonia nitrogen can reduce the threat posed by rare earth extraction wastewater to the environment and achieve effective resource utilization.
Article
Chemistry, Applied
Guolong Wu, Zhifeng Zhang, Yanling Li, Wuping Liao
Summary: Two phosphorylcarboxylic acids were synthesized for separating yttrium from rare earth concentrate. The newly synthesized acids showed significantly better separation efficiency compared to traditional extractants. By adjusting various factors, the separation efficiency can be further improved.
JOURNAL OF RARE EARTHS
(2022)
Article
Chemistry, Multidisciplinary
Xiaofen Li, Wei Li, Yuntao Gao, Guocai Tian
Summary: Deep eutectic solvents (DESs) have been investigated for the leaching of rare-earth metals, and it was found that mechanical activation can significantly enhance the leaching efficiency. The leaching process was found to change from chemical reaction controlled to diffusion controlled after mechanical grinding. This study proposes an eco-friendly and sustainable alternative for conventional leaching and solvent, which shows great potential for the recycling of rare-earth metals.
APPLIED SCIENCES-BASEL
(2022)
Article
Crystallography
Zhihong Guo, Xiangyang Li, Yu Liu, Yaxu Zheng, Liguang Zhu, Yuanxiang Zhang, Huilan Sun, Jie Feng, Ruifang Cao
Summary: The influence of yttrium on the characteristics of inclusions in grain-oriented silicon steel was investigated. The inclusions in steels with and without yttrium were observed and analyzed using microscopy techniques. The results showed that the inclusions in the Y-free steel were mainly long MnS, irregular Al2O3, and MnS-Al2O3, while the inclusions in the Y-bearing steel were spherical rare earth compounds. The presence of yttrium reduced the number of inclusions and increased their size. Additionally, yttrium modified the inclusions, transforming irregular Al2O3 inclusions into spherical rare earth inclusions, which improved the formability of the steel.
Article
Engineering, Chemical
Hepeng Zhou, Fanxin Xie, Kunzhong He, Yongbing Zhang, Xianping Luo
Summary: The presence of aluminum in rare earth lixivium has a significant impact on the extraction process of rare earth elements. The traditional method of aluminum removal using ammonium bicarbonate as precipitant often leads to high rare earth loss and ammonia-nitrogen pollution. In this study, decyl glucoside (DG) was used as a green and effective alternative to ammonium bicarbonate for removing aluminum from ion-absorbed rare earth lixivium. The results showed that DG is selective in removing aluminum from yttrium-rich rare earth lixivium with minimal rare earth loss. Mechanism research indicated that DG can remove aluminum impurities through hydrolysis neutralization and the formation of complex precipitates by adsorbing aluminum ions through the hydroxyl group on the pyran ring. This study provides a potential reagent for the effective and green removal of aluminum impurities from lixivium.
MINERALS ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Michael Paper, Max Koch, Patrick Jung, Michael Lakatos, Tom Nilges, Thomas B. Brueck
Summary: This study investigated the potential of 12 cyanobacterial strains for biosorption of rare earth elements, and Nostoc sp. 20.02 showed the highest adsorption capacity. Synechococcus elongatus UTEX 2973, Calothrix brevissima SAG 34.79, Desmonostoc muscorum 90.03, and Komarekiella sp. 89.12 were also promising strains. The adsorption of metals by the strains had fast kinetics and pH value had a significant impact on the process.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Yanfei Chen, Zhengqiang Zhu, Jixue Zhou
Summary: This study analyzed the thermodynamic stability and heat resistance of Al-containing Mg alloys using experimental and theoretical methods. The results showed that the addition of manganese and yttrium improved the mechanical properties of the Mg alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
S. Li, H. Y. Song, L. Han, W. L. Su
Summary: The addition of rare earth elements, such as Y, can improve the mechanical properties of Mg alloys by regulating their plastic deformation behavior. Molecular dynamics simulation was used to investigate the effects of Y concentration and temperature on the migration behavior of twin boundaries (TB) in Mg alloys. The results show that Y has a softening effect on TB migration and promotes its migration in Mg alloys. Higher Y concentration and temperature increase the softening effect and the migration speed of TB, respectively. This study provides a theoretical basis for the design and preparation of high-performance Mg alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Chemical
Yaxing Han, Ji Chen, Yuefeng Deng, Tianchi Liu, Hailian Li, Deqian Li
Summary: An innovative separation technique for high-yttrium ore was proposed and validated through experiments and simulations. The results showed that this technique could reduce acid consumption, obtain high purity products, and potentially lower production costs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Hao Su, Shuainan Ni, Chao Bie, Shan Wu, Xiaoqi Sun
Summary: This article introduces the application of a new ionic liquid [N-1888][NDA] in the separation of rare earth elements. By studying its extraction capacity, stripping property, and recycling stability, an efficient separation process for yttrium was developed. The experimental results showed that this process has a high separation factor and can produce high-purity yttrium without the use of salting-out reagents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Joao Pinto, Joao Colonia, Thainara Viana, Nicole Ferreira, Daniela Tavares, Jessica Jacinto, Azadeh Abdolvasei, Filipe Ls Monteiro, Bruno Henriques, Eduarda Pereira
Summary: This study proposes the recovery of yttrium from real fluorescent lamp waste through biosorption onto the macroalga Ulva sp. The results show that the algal-based sorbents are efficient in removing yttrium from waste under optimal conditions. Incorporating Ulva sp. biosorption into yttrium recovery process can contribute to a green and circular economy.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Xuexian Li, Wenlang Qiao, Deng Chen, Pan Wu, Yixi Xie, Xue Chen
Summary: Anomalous concentrations of rare earth elements (REEs) were found in the acid mine drainage (AMD) from a coal-mine area in northern Guizhou, China. The claystone from the floor of the coal seam was identified as a potential secondary source of extractable REEs, which were mainly adsorbed by clay minerals. Further studies will focus on the extraction model and economic benefits of REEs from the claystone samples.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Crystallography
Diqiang Luo, Min Liu, Xin Jiang, Yinhong Yu, Zhenming Zhang, Xiaoming Feng, Chaobin Lai
Summary: EH36 offshore engineering steels with varied yttrium-based rare earth content were prepared, and their effects on inclusions and cryogenic temperature impact properties were investigated. Results showed that yttrium-based rare earth could refine inclusions and improve the cryogenic temperature impact properties of EH36 steel.
Article
Optics
Ananya Rout, Sadhana Agrawal
Summary: This paper presents luminescence studies and first principle calculations of a rare earth doped yttrium strontium silicate fluorapatite compound. The experimental characterization confirms the crystal structure and Raman active modes of the synthesized compound. The compound exhibits strong luminescence under UV excitation, and its computational analysis reveals semiconductor behavior and high covalency.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Food Science & Technology
Yue Sui, Jiantao Liu, Yixin Liu, Ya Wang, Yiwen Xiao, Boliang Gao, Du Zhu
Summary: In this study, the cholesterol-lowering properties of lactic acid bacteria (LAB) isolated from naturally fermented tangerine vinegar were evaluated. Some strains showed potential antioxidant and probiotic properties, with strain NF4 demonstrating the best cholesterol removal rate and survival rate, suggesting its potential as a hypolipidemic probiotic.
Article
Biochemistry & Molecular Biology
Zhi-Bin Zhang, Si-Yao Du, Bo Ji, Chang-Jiu Ji, Yi-Wen Xiao, Ri-Ming Yan, Du Zhu
Summary: Three new helvolic acid derivatives and five known compounds were isolated from the endophytic fungus DX-THL3 obtained from the leaf of Dongxiang wild rice. These compounds showed potent antibacterial activities, with sarocladilactone B, helvolinic acid, and 6-desacetoxy-helvolic acid exhibiting strong inhibitory activity against Staphylococcus aureus. The structure-activity relationship of these compounds was primarily summarized in this study.
Article
Biotechnology & Applied Microbiology
Yiwen Xiao, Weizhong Liang, De Liu, Zhibin Zhang, Jun Chang, Du Zhu
Summary: This study explored novel AChE inhibitors produced by the endophytic fungus FL15 from Huperzia serrata. The asterric acid derivatives showed highly selective and moderate AChE inhibitory activities, probably via interaction with the peripheral anionic site and catalytic site of AChE.
Article
Microbiology
Ahui Xu, Yiwen Xiao, Zhenyong He, Jiantao Liu, Ya Wang, Boliang Gao, Jun Chang, Du Zhu
Summary: This study found that sequential fermentation with non-Saccharomyces yeast and Saccharomyces cerevisiae can significantly increase the polyphenol and volatile aroma compound contents in Nanfeng tangerine wines. These findings can be used to improve the sensory quality of tangerine wines and guide the selection of yeast and fermentation styles in fruit wine fermentation.
Article
Biotechnology & Applied Microbiology
Yunni Chen, Chenglong Xu, Huilin Yang, Zhenying Liu, Zhibin Zhang, Riming Yan, Du Zhu
Summary: This study investigated the effects of L-arginine (Arg) on PQ biosynthesis in Shiraia sp. Slf14(w) and the underlying molecular mechanism. The results showed that Arg promoted PQ synthesis by upregulating critical genes and activating transporter proteins. It was also found that Arg increased nitric oxide (NO) formation, which further enhanced PQ biosynthesis and efflux. The NO-cGMP-PKG signaling pathway was identified to be involved in the regulation of PQ by Arg.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Yiwen Xiao, Zhibin Zhang, Weizhong Liang, Boliang Gao, Ya Wang, Jun Chang, Du Zhu
Summary: This study identified several endophytic fungi capable of transforming glycyrrhizin into different products, including a bioconversion type reported for the first time.
Article
Microbiology
Yiwen Xiao, Weizhong Liang, Zhibin Zhang, Ya Wang, Shanshan Zhang, Jiantao Liu, Jun Chang, Changjiu Ji, Du Zhu
Summary: This study investigated the secondary metabolites of Phaeosphaeria sp. LF5, a fungus with AChE inhibitory activity. The structures and configurations of these metabolites were elucidated using spectroscopic data and calculations. The study identified several novel derivatives with potential as AChE inhibitors, providing a basis for further research and development.
Article
Agricultural Engineering
Yu-Qin Liang, Yi-Ting Wen, Qian-Qian Fu, Zi-Yi Yu, Lin-Jun Wang, Zheng-Rong Zou, Du Zhu, Wei-Ming Chai
Summary: This study extracted proanthocyanidins from the pulp of Crataegus pinnatifida Bge. and investigated their structure and activities. The proanthocyanidins were found to be effective inhibitors of tyrosinase, alpha-glucosidase, and nonenzymatic glycation. They also exhibited anti-melanogenesis properties and induced apoptosis in melanoma cells.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Agriculture, Multidisciplinary
Yiting Wen, Yujia Zhang, Xiaoli Zhang, Linjun Wang, Qiuxia Pan, Qiuhan Bai, Du Zhu, Weiming Chai
Summary: This study investigates the anti-tyrosinase activity and mechanism of albendazole and 2-(2-aminophenyl)-1H-benzimidazole (2-2-A-1HB) and demonstrates the ability of albendazole to inhibit browning of fresh-cut apples.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Biotechnology & Applied Microbiology
Chenglong Xu, Wenxi Lin, Yunni Chen, Boliang Gao, Zhibin Zhang, Du Zhu
Summary: This study investigates the effects of heat stress on the biosynthesis of Perylenequinones (PQs) in Shiraia sp. Slf14(w) and the underlying molecular mechanism. Heat stress treatment leads to a significant increase in the production of PQs, and this is accompanied by the formation of intracellular nitric oxide (NO). The results suggest that NO acts as a signaling molecule to promote PQs biosynthesis and efflux in response to heat stress.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Agricultural Engineering
Boliang Gao, Yangshuai Ma, Yiwen Xiao, Ya Wang, Yinghao Pan, Du Zhu
Summary: The production of lignocellulolytic enzyme cocktail by Chaetomium globosum DX-THS3 was optimized and its saccharification efficiency on raw rice straw was evaluated. The results showed that the enzyme cocktail had high enzymatic activity and excellent saccharification performance.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Microbiology
Ziyun Lu, Meiling Chen, Xinyi Long, Huilin Yang, Du Zhu
Summary: In this study, the antagonistic bacterium Bacillus strain BS45 was found to have potential for biological control of Fusarium graminearum and its related root rot diseases through mechanisms such as oxidative damage and interference with mycelial protein synthesis.
FRONTIERS IN MICROBIOLOGY
(2023)
Review
Biotechnology & Applied Microbiology
Zhuanying Bao, Yunchang Xie, Chenglong Xu, Zhibin Zhang, Du Zhu
Summary: This article reviews the recent developments in the mycelium fermentation production of HYPs, their bioactivities and potential applications, and the progress made in manipulating the fermentation conditions. The chemical structure and analytic methods of HYPs are also outlined. It is worth mentioning that this article proposes a revised gene arrangement in the HYP gene cluster, identifies previously unknown genes in the HYP and CTB gene clusters with correct function annotations, systematically aligns the homologous sequences of HYP, CTB, and elc, and presents a comprehensive biosynthetic pathway for HYPs.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Integrative & Complementary Medicine
Jun Chang, Shaoqing Zou, Yiwen Xiao, Du Zhu
Summary: In this study, DEGs from multiple datasets were analyzed to identify the targets of swertiamarin in idiopathic pulmonary fibrosis (IPF), with LOX, COL5A2, and CTGF being identified as the key hub genes. These findings were further validated through molecular docking and experimental studies.
BMC COMPLEMENTARY MEDICINE AND THERAPIES
(2023)
Article
Engineering, Environmental
Yixin Liu, Kapil Chandra Akula, Kodanda Phani Raj Dandamudi, Yingxin Liu, Mai Xu, Alexa Sanchez, Du Zhu, Shuguang Deng
Summary: The thermal liquefaction of PE cable plastic waste was evaluated in this study. The solvothermal liquefaction method was found to be effective in depolymerizing PE and producing high-energy oil products. The solvent played a role in dissolving and dispersing the feedstock, reducing the thermal cracking temperature in the depolymerization reaction.
CHEMICAL ENGINEERING JOURNAL
(2022)
