检索结果-内蒙古大学图书馆

Fine-tune the electronic structure of copper nanowire networks by heteroatom doping toward enhanced Fenton-like reaction

引用

Fundamental Research 2025年

作者： Zheng, Wentian Liu, Meng You, Shijie Sun, Meng Liu, Yanbiao School of Environmental Science and Technology Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) Dalian University of Technology Dalian 116024 China College of Environmental Science and Engineering Donghua University Shanghai 201620 China State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbin 150090 China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China

To fine-tune the configuration of electrons around metal centers is critical to enhancing the activation of peroxymonosulfate (PMS) for organic decontamination in a manner similar to the Fenton-like reaction. Herein, we systematically explored the inclusion of different heteroatoms to manipulate the electronic configuration of copper nanowire (CuNW) networks toward PMS activation. Both experimental results and theoretical simulations unveiled that doping the CuNW with boron (B) to generate CuNW-B adjusted the d orbital of CuNW, optimized the electronic density of Cu active sites and endowed a proper adsorption energy of PMS, which provided the most active oxidation capacity of the materials studied. Conversely, doping with phosphorus (P) to generate CuNW-P caused evident performance decay in terms of the activation of PMS, as strong adsorption energy hindered the effective desorption of key intermediates. Accordingly, the CuNW-B boosts the Fenton-like reaction and is nearly triple and twice as effectively at degrading bisphenol A (92.5%) as CuNW-P (36.0%) and CuNW (50.5%). Thus, it was reasonably hypothesized that electronic reconstruction played an important role in improving the Fenton-like reaction. During this process, an applied potential (AP) facilitated the catalytic process by reducing Cu²⁺ to Cu⁺, which was followed by the formation of primary active species (Cu³⁺). Additionally, the use of a recirculating fluid flow in the reactor provided convective mass transfer, which led to more charge transfer to the structure of electrode relative to a conventional diffusion-limited batch reactor. Moreover, tests in a variety of challenging conditions demonstrated the robustness and stability of the combined CuNW-B/PMS/AP approach. This study provides an approach to finely control the electronic structure of Cu sites and is expected to guide the design of advanced Fenton-like catalysts, which could further provide a promising technolo

关键词： Copper nanowire Electronic reconstruction Heteroatom-doped engineering High valent copper Peroxymonosulfate

来源：评论

学校读者我要写书评

暂无评论

A sensitive method for rapid determination of 256 semi-volatile organic compounds (SVOCs) in water by solid-phase extraction and GC-MS/MS

引用

Journal of environmental Sciences 2025年

作者： Youchang Zhu Ruohan Sun Yanran Dong Yan Liu Yupeng Chen Zhiquan Yuan Baozhu Pan Nan Xu Key Laboratory for Heavy Metal Pollution Control and Reutilization School of Environment and Energy Peking University Shenzhen Graduate School Shenzhen 518055 China Agilent Technologies (China) Co. Ltd. Guangzhou 510630 China State Key Laboratory of Eco-hydraulic in Northwest Arid Region of China Xi'an University of Technology Xi'an 710048 China

A trace analytical method based on solid-phase extraction gas chromatography-tandem mass spectrometry (SPE-GC-MS/MS) was developed for the rapid detection of 256 semi-volatile organic compounds (SVOCs), including 25 polycyclic aromatic hydrocarbons (PAHs), 70 polychlorinated biphenyls (PCBs), 123 pesticides, 20 phthalate esters (PAEs), 4 organophosphate esters (OPEs), 9 synthetic musks (SMs), and 5 UV filters (UVs) in water. Notably, this method provided a decent linearity of calibration standards ( R 2 > 0.999), excellent method limits of quantification (MLOQs) (0.12-11.41 ng/L), satisfactory matrix spiking recovery rates (60.4 %-126 %), and high precision (intra-day relative standard deviations (RSDs): 1.0 %-10.0 %, inter-day RSDs: 3.0 %-15.0 %, and inter-week RSDs: 3.4 %-15.7 %), making it suitable for trace-level studies. Statistical analysis revealed that SVOCs with higher volatility exhibited enhanced recovery rates. Validation of the methodology involved analyzing SVOCs in real spring water and river water samples. Twenty-seven SVOCs were detected in spring water and 58 in river water, with an average concentration of 631.73 and 16,095 ng/L, respectively. Among the detected SVOCs, PAEs constituted the predominant proportion. This study underscored the presence of SVOCs contamination specifically within the spring water, although SVOCs concentrations in river water were significantly greater than those found in spring water. In summary, this sensitive method based on SPE-GC-MS/MS was successfully developed and validated for the rapid analysis of a diverse array of 256 SVOCs at trace levels in water, including not only the traditional highly valued PAHs, PCBs, pesticides, and PAEs, but also the emerging OPEs, UVs, and SMs.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Electrodialysis-based purification process for CO 2 capture amine solvent: concepts, efficiency, and challenges

引用

Separation and Purification Technology 2025年 376卷

作者： Conghui He Xiaoyu Li Lianglin Yan Kuo Fang Yongqiang Ren Shisen Xu Beijing Huairou Laboratory Beijing 101400 China National Key Laboratory of High-Efficiency Flexible Coal Power Generation and CCUS China Huaneng Clean Energy Research Institute Beijing 102209 China College of Energy Engineering Zhejiang University Hangzhou 310027 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China

CO 2 capture is critical for achieving carbon neutrality, with amine-based absorption dominating industrial deployment for its efficiency. However, the performance of amine-based solvents deteriorates due to the accumulation of heat-stable salts (HSSs). This review systematically examines electrodialysis (ED) technology and its advanced configurations—including three-compartment ED (TED) and bipolar membrane ED (BMED)—in the context of amine solvent purification. BMED demonstrates superior performance, achieving > 95 % HSSs removal efficiency, but faces challenges such as higher energy consumption (0.04–0.08 kWh/L solvent) and membrane stability issues. The review also underscores that system performance is substantially influenced by feed composition and operational parameters, including current density and surface velocity. Economic analyses indicate that the costs associated with amine replenishment and waste treatment represent critical barriers to the widespread industrial application of ED-based amine purification technology. Future research should prioritize: (1) controlling carbamate-induced amine loss, (2) reducing BMED energy demand, (3) pilot-scale validation of membrane durability, and (4) hybrid systems to address electrically inert impurities.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Special Issue on Soil Microbial Ecology

引用

Soil Ecology Letters 2021年第4期3卷 289-289页

作者： Haiyan Chu Yunfeng Yang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China

Soils would not exist without the activity and diversity of residential *** microbes are fundamental to maintaining key soil processes associated with organic matter decomposition,nutrient cycling,and plant productivity and are thus integral to human well*** technological advances have exponentially increased our knowledge concerning soil microbial composition,diversity,distribution,and ecological func*** special issue on soil microbial ecology focuses on various aspects of soil microbiology,including soil microbial spatial distribution,microbial succession,community assembly processes,microbial biogeochemical cycles,the associations between microbial communities and plant health,and the identification and isolation of benefiting microbes for crop *** call for papers was widely recognized within the community,reflected by 12 research papers now published in the issue.

关键词： soil cycling Ecology

来源：评论

学校读者我要写书评

暂无评论

A Supercritical Carbonization Method to Prepare Nickel Single Atom Catalysts for Efficient Photodegradation of Antibiotics

SSRN

引用

SSRN 2022年

作者： Qiao, Han Hu, Shiwen Zheng, Lirong Tang, Gang Li, Weixuan Wang, Qi Suo, Hongri Liu, Chongxuan School of Environment Harbin Institute of Technology Harbin150090 China State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen518055 China Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Materials Science and engineering Southern University of Science and Technology Shenzhen518055 China

environmental photocatalysis is expected to a promising technology to treatment antibiotics contamination in water. Herein, a supercritical method was developed to synthesize a single-atom catalyst with a high-loading of Ni (above 5 wt%) anchored on carbon-nitrogen-silicate substrate for efficient photodegradation of tetracycline (TC), a typical antibiotic. The photocatalysts were prepared from a homogeneous metal-biopolymer-inorganic supramolecular hydrogel, followed by a low-temperature synchronous supercritical dry and carbonization treatment. Atomic characterizations revealed that Ni was present at isolated sites and stabilized by Ni-N and Ni-O bonds in a Ni-(N/O)6-C/SiC configuration. As the optimal sample, the 5%Ni-C-Si photocatalyst exhibited a wide visible light response with a narrow bandgap of 1.45 eV that can efficiently and repeatedly catalyze the oxidation of TC with a conversion rate of 96.8% within 20 min. TC interactions with h+ produced on the surfaces of the photocatalyst and with •O2− generated by the reduction of O2 in aqueous solutions were main mechanisms responsible for the TC photodegradation. The intermediates and possible degradation pathways of TC were analyzed by mass spectra. This work develops a novel strategy to construct carbon-based single-atom catalysts and provides a high efficiency photocatalytic degradation system for refractory TC antibiotic removal. © 2022, The Authors. All rights reserved.

关键词： Temperature

来源：评论

学校读者我要写书评

暂无评论

How much is global business sectors contributing to sustainable development goals?

引用

Sustainable Horizons 2022年 1卷

作者： Song, Lan Zhan, Xiaojiao Zhang, Huahan Xu, Ming Liu, Jianguo Zheng, Chunmiao Shenzhen Institute of Sustainable Development Southern University of Science and Technology Shenzhen518055 China State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control Southern University of Science and Technology Shenzhen518055 China School for Environment and Sustainability University of Michigan Ann ArborMI48109 United States Department of Civil and Environmental Engineering University of Michigan Ann ArborMI48109 United States Center for Systems Integration and Sustainability Michigan State University East LansingMI48823 United States

While the 17 United Nations Sustainable Development Goals (SDGs) have explicitly called on businesses to contribute, little is known to what extent have the business sectors engaged with the SDGs. Here we benchmarked the engagement of the Fortune Global Top 500 corporations with the SDGs based on publicly available information screened between November 1, 2019, and February 15, 2020. The results revealed that 304 of the 500 corporations had presented relevant content on their websites. However, 32.6% of the corporations tend to match their usual business practices with relevant SDGs instead of implementing new initiatives. Only 22.8% of the corporations developed specific actions or strategies for specific SDGs, and only 0.2% developed methods and tools to evaluate progress. European-headquartered corporations are leading the way to engage with the SDGs, whereas U.S.- and China-headquartered ones fall short. The SDG 8 (Decent Work and Economic Growth) and SDG 13 (Climate Action) are the most popular SDGs among these corporations. At the same time, SDG 2 (Zero Hunger) and SDG 14 (Life below Water) received the slightest interest. The level of engagement is uneven across various business sectors, with the corporations in the Information & Technology sector have largely engaged with the SDGs. In contrast, the Health Care sector has shown the slightest interest in the SDGs. Our results call for leading corporations in these sectors for continuous and enhanced efforts to help accelerate the global process towards the SDGs. Governments could provocatively encourage and regulate business sectors to engage with the SDGs and disclose uniform data to benchmark the progress towards a sustainable future. © 2022

关键词： Sustainable development

来源：评论

学校读者我要写书评

暂无评论

Forest change and the contributions of major influencing factors along international borders in the context of regional integration of African continent

引用

Dili Xuebao/Acta Geographica Sinica 2025年第5期80卷 1226-1243页

作者： Tang, Mengya Li, Peng Li, Xia Chen, Shengmei Chiaka, Jeffrey Chiwuikem School of Land Engineering Chang'an University Xi'an710054 China Institute of Geographic Sciences and Natural Resources Research CAS Beijing100101 China College of Resources and Environment University of Chinese Academy of Sciences Beijing100049 China School of Geosciences Yangtze University Wuhan430100 China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing100875 China Anambra-Imo River Basin Development Authority Owerri1301 Nigeria

Economic globalization and regional integration have pushed international borders from closure to opening-up, making them a hot spot for studying human-environment relations. The promotion of African integration has lasted for decades and has also affected cross-border landscape and land use. Since the signing of the African Continental Free Trade Area Agreement, the processes of forest loss and gain and other land cover change within international borders of continental Africa and its main influencing factors (e.g., active fire) as well as their contribution remain understudied. With the Sentinel-2 10-m land use/land cover products, Suomi National Polar-orbiting Partnership Visible Infrared Imaging Radiometer Suite (VIIRS) active fires, LandScan population density, and armed conflict records during 2017-2022, we first examined the inter-annual dynamics and cross-transformations between forest (trees), rangeland (grass and shrub), and bare ground within a total of 146 international borders of the African continent, covering 49 countries. We then determined the major influencing factors and quantified their contribution using Random Forest Regression and correlation analysis. The results show that: (1) the international borders of continental Africa are characterized by a general distribution pattern of forest, rangeland, and bare ground in a sequential order in both the northern and southern parts, divided by the equator. The three land cover types account for nearly 90% of all borders, and dominate (>80%) the change in land cover at the borders with an average annual rate of 2%. Forest loss due to the transformation into rangeland remains a major trend albeit short-term forest gain in 2020. (2) Active fire and population density are the primary and secondary respectively causes of forest cover change along national borders in Africa. The relationship between forest changes and the frequency of active fire or population density is initially weak and then strong duri

关键词： Deforestation

来源：评论

学校读者我要写书评

暂无评论

Size distribution of particulate polycyclic aromatic hydrocarbons in fresh combustion smoke and ambient air: A review

引用

Journal of environmental Sciences 2020年第2期32卷 370-384页

作者： Lulu Zhang Lu Yang Quanyu Zhou Xuan Zhang Wanli Xing Yongjie Wei Min Hu Lixia Zhao Akira Toriba Kazuichi Hayakawa Ning Tang Graduate School of Medical Sciences Kanazawa UniversityKakuma-machiKanazawa 920-1192Japan State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environment SciencesBeijing 100012China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Institute of Medical Pharmaceutical and Health SciencesKanazawa UniversityKakuma-machiKanazawa 920-1192Japan Institute of Nature and Environmental Technology Kanazawa UniversityKakuma-machiKanazawa 920-1192Japan

Polycyclic aromatic hydrocarbons(PAHs) are ubiquitous in the atmosphere and they mostly stem from the imperfect combustion of fossil fuels and *** are inherently associated with homogenous fine particles or distributed to different-sized particles during the aging of air *** carried by fine particles undergo a long-range transport to remote areas while those adsorbed on coarse particles have a shorter lifetime in ambient *** importantly, PAHs with higher molecular weights tend to be bound with finer particles and can deeply enter the lungs, posing severe health risks to ***, the environmental fate and health effects of particulate PAHs are strongly *** review summarizes the size distributions of particulate PAHs freshly emitted from combustion sources as well as the distribution patterns of PAHs in ambient *** was found that PAHs from stationary sources are primarily bound to fine particles, which are slightly larger than particles to which PAHs from mobile sources are *** ambient air, particulate PAHs are distributed in larger size modes than those in the combustion fume, and the particle size decreases with PAH molecular weight *** relevant mechanisms and influencing factors of particle size distribution changes are illustrated in this article, which are essentially attributed to combustion and ambient temperature as well as the physical and chemical properties of ***, the study on the particle size distribution of PAHs will contribute for a full understanding of the origin, atmospheric behaviors and health effects of particulate PAHs.

关键词： Atmospheric pollution Coal combustion Biomass burning Vehicle exhaust Gas–particle partitioning

来源：评论

学校读者我要写书评

暂无评论

Temporal responses of DOM molecular characteristics to conversion from dryland to paddy field: Insights from soil aggregate size fractionation

引用

environmental Technology and Innovation 2025年 39卷

作者： Chen, Shuhe Gao, Yiman Ma, Xuemin Li, Dan Fang, Fei Yuan, Ying Xi, Beidou Tan, Wenbing State Key Laboratory of Environmental Criteria and Risk Assessment and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing100012 China College of Water Sciences Beijing Normal University Beijing100875 China Research Center of Environmental Pollution Control Technology Chinese Research Academy of Environmental Sciences Beijing100012 China Technical Centre for Soil Agriculture and Rural Ecology and Environment Ministry of Ecology and Environment Beijing100012 China

Dissolved organic matter (DOM) is predominantly present within soil aggregates and its structure critically influence the environmental behavior of pollutants. However, the long-term evolution of DOM structure across aggregate sizes following dryland-to-paddy conversion remains unclear. This study examined the structure characteristics of DOM in paddy soils at land use change sequence (5, 12, 21, 29, 41, and 53 years) across different aggregate size fractions (254, E4/E6, and A240–400, SR and HIX) elucidated the co-evolutionary dynamics of DOM structure with aggregate size fractions and land-use conversion chronology. The results demonstrated that DOM in smaller aggregates ( © 2025 The Authors

关键词： Depth profiling

来源：评论

学校读者我要写书评

暂无评论

Changes of Nitrogen and Phosphorus Removal Pattern Causing by Alternating Aerobic/Anoxia from the Perspective of Microbial Characteristics

SSRN

引用

SSRN 2022年

作者： Yao, Kai Huang, Xiao Dong, Wenyi Wang, Fupeng Liu, Xueyong Yan, Yu Qu, Yanhui Fu, Yicheng Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control School of Environmental Science and Engineering Nanjing University of Information Science & Technology Nanjing210044 China Shenzhen518055 China Northeast China Municipal Engineering Design and Research Institute Co Ltd Jilin130021 China Urban and Rural Water Environment Technology R&D Center China Communications Construction Co Ltd Jilin130021 China China Urban and Rural Holdings Group Co Ltd Beijing100029 China State Key Laboratory of Simulation and Regulation of River Basin Water Cycle China Institute of Water Resources and Hydropower Research Beijing100038 China

To investigate the effect of alternating aerobic/anoxic (A/O) on pollutant removal performance and microbial community structure, three sequencing batch reactors (SBR) processes with different alternating A/O times were set up. The results showed that alternating A/O was beneficial for organic matter degradation and promote nitrogen (N) and phosphorus (P) removal performance, and the removal efficiencies of chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), total nitrogen (TN), and total phosphorus (TP) increased 3.41%, 4.76%, 3.51%, and 6.27%, respectively. Besides, alternating A/O affected the dominant microbial community relative abundance (Proteobacteria and Bacteroidetes) and increased microbial richness and diversity. It also increased the relative abundance of aerobic denitrifying, heterotrophic nitrifying, and denitrifying phosphorus removal bacteria to change N and P removal patterns. Furthermore, the abundance of carbohydrate metabolism and amino acid metabolism were improved by alternating A/O to improve organic matter and TN removal. © 2022, The Authors. All rights reserved.

关键词： Chemical oxygen demand

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：