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Chinese Chemical Letters 2024年第6期35卷 398-403页

作者： Xin Lu Haoran Sun Xiaomeng Li Chunrui Li Jinfeng Wang Dandan Zhou Jilin Engineering Lab for Water Pollution Control and Resources Recovery School of the EnvironmentNortheast Normal UniversityChangchun 130117China State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

The biosecurity hazards caused by pathogenic fungus have been widely *** the long-term coexistence of eukaryotic pathogens and quorum sensing bacteria in different habitats in environments,we hypothesized that they have social interactions via signal *** this work,we firstly discovered the well-known bacterial signal molecules play an adverse role in the cell morphology and metabolism in a model pathogen Trichosporon asahii.N-Tetradecanoyl-L-homoserine lactone(C14-HSL)was discovered to increase pathogen hazards of ***,which limited mycelium by 52%,but enhanced cell aggregation by 93%.Higher fluorescence intensity of tryptophan(59%)and aromatic protein(2-fold)contents after the treatment of C14-HSL,indicating that aromatic proteins helped aggregate Trichosporon and showed *** analysis revealed that C14-HSL upregulated the shikimate pathway(above1-fold)located in downstream of tricarboxylic acid cycle,which contributed to the synthesis of more aromatic proteins and the formation of larger *** limited mycelial growth of *** attributed to the up-regulated expressions of cell cycle *** fungal transboundary response to bacterial C14-HSL was controlled by signal transduction *** study provides new insights into the co-evolution of bacterial and pathogenic fungi in microecosystems.

关键词： Bacterial C14-HSL Mycelium Cell cycle Aggregation Aromatic proteins

Toward sustainable food systems: global initiatives and innovations

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Frontiers of Agricultural Science and Engineering 2024年第1期11卷 197-209页

作者： Xiangwen FAN Xiaomeng ZHANG Xiaofei WU Wenqi MA Zhaohai BAI Lin MA State Key Lab Pollution Control&Resource Reuse School of EnvironmentNanjing UniversityNanjing 210023China College of Resources and Environmental Sciences Hebei Agricultural UniversityBaoding 071000China College of Food Science and Biology Hebei University of Science and TechnologyShijiazhuang 050018China

A recent UN Sustainable Development Goals(SDGs) analysis indicated a significant regression in the global SDG goal scores, particularly in SDG 2—Zero Hunger. The emissions of environmental pollution caused by meeting food demands have prompted some countries to intensify their climate change mitigation efforts. These circumstances have introduced significant uncertainty to the future global sustainable food development. Additionally, a notable global challenge is the persistence of hidden hunger, primarily characterized by the insufficient consumption of high-quality animal protein. Addressing this issue would necessitate increased environmental costs to attain high-quality food security. The future food system presents a significant challenge in coordinating food security, food quality and environmental quality. This article presents a comprehensive review and proposes a three-step strategy for future agricultural development based on food security, quality, and environmental aspects. This is a novel food system transfer strategy, as it concurrently addresses both global food security and environmental thresholds. It involves the construction of an efficient food system that operates within the constraints of environmental limits. The objective is to align with global SDG indicators and to maintain natural resource consumption and pollutant emissions within planetary boundaries.

关键词： Agricultural green development food system food production optimization transform pathways

Interface-induced charge transfer pathway switching of a Cu_(2)O-TiO_(2)photocatalyst from p-n to S-scheme heterojunction for effective photocatalytic H_(2)evolution

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Journal of Materials Science & Technology 2024年第26期193卷 98-106页

作者： Kaihui Huang Guijie Liang Shaolong Sun Haobin Hu Xiaoming Peng Rongchen Shen Xin Li Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou 510642China Hubei Key Lab Low Dimens Optoelect Mat&Devices Hubei University of Arts and ScienceXiangyang 441053China College of Natural Resources and Environment South China Agricultural UniversityGuangzhou 510642China Key Laboratory of Efficient Utilization of Oil and Gas Resources in Longdong College of Petroleum and Chemical EngineeringLongdong UniversityQingyang 745000China State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

Photocatalytic hydrogen evolution from water splitting is an appealing method for producing clean chemical ***_(2)O,with a suitable bandgap,holds promise as a semiconductor for this ***,the strong photo-corrosion and rapid charge recombination of Cu_(2)O strongly limit its application in the photocatalytic ***,an S-scheme heterojunction photocatalyst composed of TiO_(2)and Cu_(2)O was rationally designed to effectively avoid the photo-corrosion of Cu_(2)*** introduction of an interfacial nitrogen-doped carbon(NC)layer switches the heterojunction interfacial charge transfer pathway from the p-n to S-scheme heterojunction,which avoids excessive accumulation of photogenerated holes on the surface of Cu_(2)***,the hybrid structure shows a broad spectral response(300-800 nm)and efficient charge separation and transfer ***,the highest photocatalytic hydrogen evolution rate of TiO_(2)-NC-3%Cu_(2)O-3%Ni is 13521.9μmol g^(-1)h^(-1),which is approximately 664.1 times higher than that of pure Cu_(2)***-situ X-ray photoelectron spectroscopy and Kelvin probe confirm the charge transfer mechanism of S-scheme *** formation of S-scheme heterojunctions effectively accelerates the separation of photogenerated electron-hole pairs and enhances redox capacity,thereby improving the photocatalytic performance and stability of Cu_(2)*** study provides valuable insights into the rational design of highly efficient Cu_(2)O-based heterojunction photocatalysts for hydrogen production.

关键词： Photocatalytic hydrogen evolution Cu_(2)O S-scheme heterojunction Charge separation mechanism Nitrogen doped carbon

The Impact of Hydraulic Hubs on the Spatial Variation of Water Quality in the Middle Reaches of the Hanjiang River and an Analysis of the Driving Factors 8th

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The Impact of Hydraulic Hubs on the Spatial Variation of Wat...

8th International Conference on Water Resource and Environment, WRE 2022

作者： Jia, Di Lin, Li Pan, Xiong Dong, Lei Zhang, Sheng Basin Water Environmental Research Department Changjiang River Scientific Research Institute Wuhan430010 China Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province Wuhan430010 China State Key Laboratory of Pollution Control and Resources Reuse School of Environment Nanjing University Nanjing210023 China

ISBN: (纸本)9789819919185

The Hanjiang River occupies a very important position in China's water resource allocation and is a typical dam-influenced river in China. To monitor the water quality and heavy metal content of the river, and to investigate the influence of water hubs on the changes of both, sampling sites were set up in October 2020 upstream, before, and below the dams of three typical water hubs in the middle reaches of the Hanjiang River for analysis and investigation. The results showed that the concentrations of TP, TN, NH4-N, and Fe exceeded the standard;the concentrations of conventional water quality indicators changed significantly (P 0.05). © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Water quality

Performance and mechanism investigation on the enhanced photocatalytic removal of atrazine on S-doped g-C3N4

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Chemosphere 2024年 347卷

作者： Zheng, Anqi Xie, Siqi Li, Kewang Zhang, Chaojie Shi, Huijie School of Chemical Science and Engineering Shanghai Key Lab of Chemical Assessment and Sustainability Tongji University 1239 Siping Road Shanghai200092 China State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University 1239 Siping Road Shanghai200092 China

Developing efficient method for removing low-concentration atrazine, a poisonous chlorinated triazine herbicide with poor biodegradability, was an important measure to control its risk. In this work, highly efficient photocatalytic oxidation of atrazine was achieved on S-doped g-C3N4 (S-g-C3N4). Approximate 99.6% of atrazine was removed in 2 h with a reaction rate constant of 2.76 h−1, nearly 2.44 times that on g-C3N4. The mechanism investigation indicated the improved photocatalytic performance of S-g-C3N4 could be attributed to the enlarged specific surface area, extended light absorption as well as the accelerated separation of the photogenerated charge carriers, which was brought about by the successful doping of sulfur in g-C3N4. Meanwhile, the influence of sulfur doping on the generation and contribution of different reactive species in atrazine removal were also elucidated. It revealed that compared with g-C3N4, the more positive valence band potential of S-g-C3N4 was beneficial to produce more singlet oxygen, which could react synergistically with the superoxide radicals, leading to the improved atrazine removal efficiency. The S-g-C3N4 based photocatalytic system also showed preferential photocatalytic oxidation capability in removing other triazine pesticides compared with 3-chlorophenol (3-CP). The potential applicability of the S-g-C3N4 based photocatalytic system in removing atrazine in high salty water was also investigated, which exhibited superior anti-interference ability towards virous coexistent ions. This work will provide essential and fundamental information for establishing efficient photocatalytic system for triazine type pollutants in waters. © 2023 Elsevier Ltd

关键词： Risk assessment

Research on the Path of Talent Development and Upgrading of Mining Engineering under the Background of the Intelligent Mine 21

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Research on the Path of Talent Development and Upgrading of ...

7th International Conference on Frontiers of Educational Technologies, ICFET 2021

作者： Chen, Yong Xu, Yang Ke, Lihua Yao, Nan Wang, Qiaozhi Wuhan University of Science and Technology State Environ. Protect. Key Lab. of Mineral Metall. Resources Utilization and Pollution Control Wuhan University of Science and Technology Key Lab. of Hubei Prov. for Efcient Utiliz. of Metallurgical Mineral Resources and Block Building

ISBN: (纸本)9781450389723

The construction of intelligent mines puts forward new challenges to the talent training of Mining Engineering. The connotation and future development trend of intelligent mines were systematically expounded in the paper, summarizing the current situation and the barriers to upgrading and transforming the major. Based on the development status of intelligent mines, a curriculum system construction plan was proposed incorporating the principle of merging traditional courses, introducing in new courses, strengthening knowledge integration, highlighting practical ability training, and setting elective course groups according to the research direction. In addition, a supporting teacher construction plan and a practice base construction plan were proposed accordingly. Subsequently, a talent training and an upgrading path for the major of Mining Engineering under the background of intelligent mining were proposed. © 2021 ACM.

关键词： Curricula

Self-Assembled Core-Shell Structure MgO@TiO2 as K2CO3 Support with Superior Performance for Direct Air Capture CO2

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SSRN 2023年

作者： Wu, Deli Wu, Ke Peng, Shuai Ye, Guojie Chen, Zuofeng State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science & Engineering Tongji University Shanghai200092 China Shanghai Key Lab of Chemical Assessment and Sustainability School of Chemical Science and Engineering Tongji University 1239 Siping Road Shanghai200092 China

While traditional carbon capture and storage (CCS) technologies for large point sources can at best slow the rate of increase in atmospheric CO2 concentrations. In contrast, direct capture of CO2 from ambient air, or "direct air capture" (DAC), offers the potential to become a truly carbon-negative technology. Composite solid adsorbents fabricated by impregnating a porous matrix with K2CO3 are a promising adsorbent for the adsorption capture of CO2 from ambient air. Nevertheless, the adsorbent can be rapidly deactivated during continuous adsorption/desorption cycles. In this study, MgO-supported, TiO2-stabilized MgO@TiO2 core-shell structures were prepared as supports using a novel self-assembled (SA) method, and then impregnated with 50 wt% K2CO3 (K2CO3/MgO@TiO2, denoted as SA-KM@T). The adsorbent exhibits a high CO2 capture capacity of ~126.6 mg CO2/g sorbent in direct air adsorption and maintained a performance of 20 adsorption/desorption cycles at 300 °C mid-temperature, which was much better than that of K2CO3/MgO. Analysis proved that the core-shell structure of the support effectively inhibited the reaction between the active component (K2CO3) and the main support (MgO) by the addition of TiO2, resulting in higher reactivity, thermal stability and anti-agglomeration properties. This work provides an alternative strategy for direct air capture applications using adsorbents. © 2023, The Authors. All rights reserved.

关键词： Carbon dioxide

Tough, Stretchable Dual-Network Liquid Metal-Based Hydrogel Toward High-Performance Intelligent On-Off Electromagnetic Interference Shielding, Human Motion Detection and Self-Powered Application

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SSRN 2023年

作者： Guo, Hongtao Shi, Yuyang Pan, Fei Zheng, Shuhuai Chai, Xiaoli Yang, Yang Jiang, Haojie Wang, Xiao Li, Lixin Xiu, Zhen Wang, Jingli Lu, Wei Shanghai Key Lab. of D&A for Metal-Functional Materials School of Materials Science & Engineering Tongji University Shanghai201804 China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University 1239 Siping Road Shanghai200092 China Functional Materials Research Laboratory China

The stretchable conductive materials with adjustable electromagnetic interference (EMI) shielding performance and other multifunctional integrated applications are remarkably desirable and challenging in flexible electronics. However, the existing stretchable materials often suffer from the decay of EMI shielding performance during the stretching process, which limits their practical applications. Meanwhile, it remains a great challenge to construct materials with ordered porous frameworks as integrated shielding devices. Incorporating porous structure will generate abundant interior surfaces/interfaces, facilitating multiple reflections of incident electromagnetic waves (EMWs). Herein, we employ ultrasound method to modify liquid metal (LM) with carbon nanotubes (CNTs), and further utilize an UV in-situ polymerization method to fabricate CNT@LM/polyacrylamide/gelatin (LMCPG) dual network hydrogel elastomer. The LMCPG hydrogel elastomer possesses high strength and durability, and its tensile strength reaches 117 kPa at 1033 % strain owing to the high strength of the rigid network and the beneficial deformation ability of the flexible network. Deformable CNT@LM droplets elongate randomly during stretching process, which facilitates establishing more conductive paths. The EMI shielding capacity of the stretched elastomer can be controlled, achieving an intelligent on-off behavior, which exhibits a 211 % increase at 200 % strain in EMI shielding effectiveness (SE) compared with the undeformed state. Moreover, the LMCPG elastomer shows a significant triboelectric performance, which can provide power supply for flexible electronic devices, achieving an uninterrupted monitoring of the human body motion by devices. Therefore, as a flexible electronic material, it can offer a facile solution to achieve intelligent multifunctional integrated EMI shielding materials. © 2023, The Authors. All rights reserved.

关键词： Flexible electronics

Coupling Weak Magnetic Field and Zero-Valent Iron-Activated Persulfate Oxidation Process Activation for Improving Dewaterability of Waste Activated Sludge

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SSRN 2024年

作者： Hu, Weijie Qin, Xi Lu, Xueqin Liu, Zhaobin Zhao, Youcai Yang, Yinchuan Zhen, Guangyin Co. Ltd Shanghai200092 China Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration School of Ecological and Environmental Sciences East China Normal University Shanghai200241 China 3663 N. Zhongshan Rd Shanghai200062 China The State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai200092 China The State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai200092 China Shanghai200092 China Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area Ministry of Natural Resources 3663 N. Zhongshan Road Shanghai200062 China

Zero-valent iron (ZVI) activated persulfate (S2O82-) oxidation offers an alternative strategy for enhancing sludge dewatering. However, the slow corrosion/dissolution and precipitations of oxide iron layer of ZVI particles limit it real applications. In this study, weak magnetic field (WMF) was coupled with zero-valent iron (ZVI)-activated persulfate (S2O82-) oxidation at the different initial pH levels to enhance waste activated sludge (WAS) dewatering ability. The use of WMF can avoid the precipitation of ferric (hydr) oxides and accelerate the dissolution of ZVI particles, with the concentration of Fe(Ⅱ) increased from 10.0 ± 8.8 to 222.0 ± 118.0 mg/L. The lowest CST/CST0 value of 0.27 ± 0.00 was observed at the ZVI/S2O82- dosage of 1.5/1.2 mmol/g-VS when coupled with WMF of 25 mT, lower than that without WMF (0.59 ± 0.03). The improved ZVI corrosion and subsequent liberation of Fe(Ⅱ) provoked the SO4-· production from S2O82- and thus enhanced the sludge dewaterability greatly by disrupting the extracellular biopolymers and cells. Our results show that the application of WMF can be feasible for ZVI/S2O82- oxidation to improve sludge dewatering performance. © 2024, The Authors. All rights reserved.

关键词： Oxidation

Coupling Weak Magnetic Field and Zero-Valent Iron-Activated Persulfate Oxidation Process Activation for Improving Dewaterability of Waste Activated Sludge

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SSRN 2024年

关键词： Oxidation