Article
Chemistry, Physical
Mingyang Chi, Xueni Sun, Gisela Lozano-Blanco, Bruce J. Tatarchuk
Summary: This study investigates the photocatalytic oxidation mechanism of carbon contaminants on the surface of TiO2 particles under UV irradiation, revealing an interactive and non-steady state transient photocatalytic reaction between surface carbon species and adsorbed H2O.
APPLIED SURFACE SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Laura Zorza, Maris Bertins, Kristine Saleniece, Gunta Kizane, Andrejs Grinbergs, Ugis Eismonts, Ingars Reinholds, Arturs Viksna, Olga Muter
Summary: This study evaluates the potential of various freshwater macrophytes to accumulate Cs and identifies certain enzyme groups that can serve as bioindicators of Cs pollution in aquatic ecosystems.
Article
Chemistry, Multidisciplinary
Orlando Lima, Catia Afonso, Iran Rocha Segundo, Salmon Landi, Natalia C. Homem, Elisabete Freitas, Amanda Alcantara, Veronica Castelo Branco, Sandra Soares, Jorge Soares, Vasco Teixeira, Joaquim Carneiro
Summary: This study investigated the effects of nano-TiO2 on the aging of asphalt binder by modifying a commercial binder. The results showed that incorporating 0.25% nano-TiO2 effectively mitigated binder aging.
Article
Agricultural Engineering
Jingyao Hu, Dan Li, Qitong Huai, Mengjie Geng, Zhouliang Sun, Mingyue Wang, Siqi Wang, Yang Li, Huanyu Zheng
Summary: This study aimed to improve the properties of soy protein isolate (SPI)-based films by blending nano-TiO2 particles with SPI. The addition of nano-TiO2 (3% w/w SPI) significantly enhanced the color and ultraviolet-shielding properties, hydrophobicity, tensile strength, and reduced water vapor permeability of the SPI film. Additionally, nano-TiO2 exhibited concentration- and time-dependent bacteriostatic effects on Escherichia coli (E. coli) and Bacillus cereus (B. cereus).
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Environmental
Xiaochen Li, Li Yan, Wen Zhong, Michael Kersten, Chuanyong Jing
Summary: The research found that arsenate was preferentially adsorbed on α-FeOOH and TiO2, while phosphate dominated on LaOOH. The adsorbed phosphate on LaOOH had to be remobilized to allow for arsenate adsorption, but the phosphate adsorption on α-FeOOH and TiO2 was hindered by faster arsenate adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Food Science & Technology
Lili Yang, Hua Yang, Wenting Hao, Yingchang Li, Qiuying Li, Tong Sun
Summary: The study modified chitosan coatings with in situ modification nano-CaCO3 and nano-TiO2 to enhance their tensile strength and elongation at break, increase carbon dioxide permeability, disrupt bacterial cell membranes, and inhibit the growth and reproduction of Shewanella putrefaciens and Pseudomonas aeruginosa. It shows potential for application in the preservation of aquatic products.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Geochemistry & Geophysics
Qian Yao, Chuling Guo, Xiaofei Li, Xiaohu Jin, Guining Lu, Xiaoyun Yi, Weilin Huang, Zhi Dang
Summary: This study investigates the combined effects of oxalic acid and solar radiation on substituted Cr(III) schwertmannite under acidic conditions, revealing the significant role of oxalic acid in controlling the cycling of Fe/C and heavy metal elements in the AMD-contaminated environment.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Multidisciplinary Sciences
Jana Schaber, Rong Xiang, Jochen Teichert, Andre Arnold, Petr Murcek, Paul Zwartek, Anton Ryzhov, Shuai Ma, Stefan Gatzmaga, Peter Michel
Summary: This study demonstrates the influence of residual surface carbon on the quantum efficiency of p-GaN photocathodes grown on sapphire by metal organic chemical vapor deposition. The X-ray photoelectron spectrometer (XPS) enabled in-situ monitoring of the surface cleanliness and degradation processes. The formation of a negative electron affinity surface was still possible on p-GaN, despite the presence of carbon and oxygen impurities. Activation with cesium resulted in a shift in binding energy and the formation of cesium carbide, which played a critical role in photocathode degradation. The study also discussed the impact of X-ray damage on p-GaN:Cs photocathodes, particularly the influence on cesium.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Nina Girard-Perier, Magalie Claeys-Bruno, Sylvain R. A. Marque, Nathalie Dupuy, Fanny Gaston, Samuel Dorey
Summary: A study showed that different irradiation modalities have minimal effects on the thermal properties of PE/EVOH/PE multi-layer films, but significant differences in chemical properties, such as oxidation ability, were observed, with e-beam irradiation showing weaker oxidation compared to X-ray and gamma-irradiation.
CHEMICAL COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Dongwei Zhang, Xin Xu, Tianlai Yu, Dahong Mo, Jinlong Diao, Tao Zheng, Yanyan Guo, Jingwen Lv
Summary: In this study, a glass composition with P2O5-53SnF(2)-2B(2)O(3) was prepared and characterized under a nitrogen atmosphere. The presence of new P-N and P = N bonds in the glass network was confirmed, and the transition temperature and weight loss of the glass were found to be influenced by the NH4H2PO4 content. This work demonstrates the potential of nitride tin-boron-fluorophosphate glass as a low-temperature sealing material with satisfactory properties.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Biodiversity Conservation
Wenxian Sun, Xiaoyin Niu, Haowei Teng, Yanfei Ma, Longchao Ma, Yizhou Liu
Summary: The study revealed that eutrophication in Chaihe Reservoir in Kunming, China has worsened, with human activities contributing to increased input of organic carbon, nitrogen, and sulfur into the aquatic environment.
ECOLOGICAL INDICATORS
(2022)
Article
Chemistry, Physical
Chunlong Cheng, Qichi Le, Chenglu Hu, Tong Wang, Qiyu Liao, Xiaoqiang Li
Summary: A novel robustness mineralized layer was prepared on the surface of an AZ80-0.38Nd alloy using isothermal oxidation, mineralization, and pyrolysis treatments. The layer mainly consists of rod-like and flake-like structures, exhibiting outstanding robustness. The in-situ rod and flake crystals act as reinforcing and toughening agents, improving the adhesion strength and densification of the layer. The research contributes a promising method for surface modification of magnesium alloys.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Gi-Hyeok Lee, Taesoon Hwang, Jae-Bum Kim, Junghoon Yang, Feng Zou, Maenghyo Cho, Yong-Mook Kang
Summary: This article investigates the improved electrochemical performance of phosphate doped hard carbon (P-HC) in sodium ion batteries (SIBs), revealing that the capacity enhancement and changed voltage profile are a result of the introduced phosphate functional groups. The introduction of phosphate generates electron holes near the Fermi level, improving electronic conductivity. The higher reducibility of doped phosphate compared to surrounding carbon atoms in P-HC leads to the generation of electron holes. This discovery provides insights for designing highly functional hard carbon structures with higher capacity in SIBs.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Environmental Sciences
Yinlong Xiao, Ying Du, Yue Xiao, Xiaohong Zhang, Jun Wu, Gang Yang, Yan He, Yaoyu Zhou, Willie J. G. M. Peijnenburg, Ling Luo
Summary: The study shows that the co-existence of TiO2 nanoparticles and copper in agricultural soils can enhance the toxicity and accumulation of copper in soybeans. However, the mutual effects disappear when the copper concentration is above 5 mg/L. Furthermore, TiO2 nanoparticles can adsorb copper ions, leading to reduced bioavailability of copper to soybeans and alleviated toxicity and accumulation in soybeans.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Chemistry, Physical
Nirmala Rani, Kanika Khurana, Neena Jaggi
Summary: CNTs based nanocomposites are highly promising materials in various fields due to their excellent properties. This research focused on spectroscopic study of FMWCNTs nanocomposites with different wt% of SnO2 NPs, confirming structural defects through XRD and Raman spectroscopy, chemical composition through XPS, and morphology through FESEM and TEM analysis. FTIR spectroscopy was used to validate the presence of different functional groups on the FMWCNTs and SnO2/FMWCNTs nanocomposites.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Environmental
Xingxing Hu, Lingjie Liu, Yanmeng Bi, Lu Li, Chunsheng Qiu, Jingjie Yu, Shaopo Wang
Summary: In this study, the impact of exogenous folate on the start-up process of single-stage partial nitritation-anammox (SPNA) was evaluated using two lab-scale reactors. The results showed that folate addition can enhance nitrogen removal rate, extracellular polymeric substances production, hydrazine oxidase and dehydrogenase activity, as well as the relative abundance of Candidatus Brocadia.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Shaocang He, Tingting Shen, Jing Sun, Haoqi Pan, Chenxu Sun, Tianpeng Li, Runyao Li, Enshan Zhang
Summary: A novel process of acid leaching neutralization was developed for the preparation of inorganic polymeric composite ferric aluminum silicate coagulant (CFAS) using solid waste coal gasification coarse slag (CGCS). The optimized preparation process was determined through single-factor experiment and the performance of CFAS was evaluated for domestic sewage treatment. The results showed that CFAS exhibited excellent coagulation ability and achieved significant removal efficiency for turbidity, ammonia nitrogen, and chemical oxygen demand.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Kinga Szatmari, Sandor Nemeth, Alex Kummer
Summary: In this article, a resilience-based reinforcement learning approach is proposed to address the potential thermal runaway issue in batch reactors. By calculating the resilience metric for reactors and utilizing Deep Q-learning to decide when to intervene in the system, resilient-based mitigation systems can be effectively developed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Bingyou Jiang, Qi Yao, Mingqing Su, Jingjing Li, Kunlun Lu, Dawei Ding, Han Hong
Summary: This study investigates the inhibitory characteristics and mechanisms of ABC powder on coal powder explosion. The addition of ABC powder significantly decreases the maximum explosion pressure and can completely suppress coal dust explosions. The study also reveals the thermal decomposition characteristics and reaction kinetics of the mixed system.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Kubilay Bayramoglu, Mustafa Nuran
Summary: This study examines the feasibility of using pyrolytic oil from waste tires as fuel in diesel engines, and evaluates its energy, exergy, and sustainability. The results indicate that pyrolytic oil has potential as a renewable fuel source with relatively high thermal efficiency.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Xinru Duan, Yejia Lv, Jiaxing Hong, Jianzhong Wu, Jia Zhang, Yang Yue, Guangren Qian
Summary: This study successfully prepared a tube reactor with optimized catalyst formula, which showed good performance in removing dioxins and other pollutants in the experiments.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Jiaoyang Du, Xueming Dang, Xiaorong Gan, Xin Cui, Huimin Zhao
Summary: In this study, a photocatalyst-enzyme hybrid system was constructed, which solved the issue of enzyme inactivation caused by high concentration of H2O2 through photocatalytic in-situ H2O2 production, and improved the stability and catalytic efficiency of the enzyme. The effectiveness of the system in treating phenolic EDCs was confirmed through experiments.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Fu-Rong Xiu, Longsheng Zhan, Yingying Qi, Xinyue Lei, Jiali Wang, Haipeng Zhou, Wenting Shao
Summary: This study developed a synergetic and high-efficiency treatment of waste tantalum capacitors (WTCs) and polyvinyl chloride (PVC) using subcritical water process. The treatment significantly reduced the temperature and reaction time for metal tantalum recovery from WTCs, and improved the dechlorination efficiency of PVC. The optimized conditions resulted in 100% resin conversion efficiency of WTCs and 97.39% dechlorination efficiency of PVC. The interaction between decomposition products of WTCs and PVC produced a high level of benzoic acid.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Bingda Li, Jiaming Song, Yuting Li, Chaoying Meng, Shuxian Wang, Linghao Zong, Honggang Ye, Yishuai Jing, Feng Teng, Peng Hu, Haibo Fan, Guangde Chen, Xin Zhao
Summary: CdPS3 nanosheets, especially those exfoliated by sodium cholate, have shown highly efficient photocatalytic degradation performance. The strong dark adsorption and dye-sensitized photocatalytic properties of CdPS3 nanosheets contribute to high degradation efficiencies of various pollutants.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Dongxu Ouyang, Yimei Pang, Bo Liu, Zhirong Wang
Summary: This study investigates the thermal runaway features of lithium-ion cells under tunnel conditions, considering different states of charge and tunnel ceilings. The results show that the tunnel visibility is affected by the smoke generated during thermal runaway, and the shape of the tunnel ceiling influences the temperature rise differently.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)