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N-doped graphene quantum dot-decorated N-TiO2/P-doped porous hollow g-C_(3)N_(4) nanotube composite photocatalysts for antibiotic photodegradation and H2 production

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International Journal of Minerals,Metallurgy.and Materials 2024年第1期31卷 165-178页

作者： jingshu y.an yao Zhang Xiaoyan Zhang Junjie Zhang Shen’gen Zhang Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Xi’an Fanyi University Xi’an 710105China Shunde Graduate School of University of Science and Technology Beijing Foshan 528399China State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacao SAR 820000China

Exclusive responsiveness to ultraviolet light (~3.2 eV) and high photogenerated charge recombination rate are the two primary drawbacks of pure TiO_(2). We combined N-doped graphene quantum dots (N-GQDs), morphology regulation, and heterojunction construction strategies to synthesize N-GQD/N-doped TiO_(2)/P-doped porous hollow g-C_(3)N_(4) nanotube (PCN) composite photocatalysts (denoted as G-TPCN). The optimal sample (G-TPCN doped with 0.1wt% N-GQD, denoted as 0.1% G-TPCN) exhibits significantly enhanced photoabsorption, which is attributed to the change in bandgap caused by elemental doping (P and N), the improved light-harvesting resulting from the tube structure, and the upconversion effect of N-GQDs. In addition, the internal charge separation and transfer capability of0.1% G-TPCN are dramatically boosted, and its carrier concentration is 3.7, 2.3, and 1.9 times that of N-TiO_(2), PCN, and N-TiO_(2)/PCN(TPCN-1), respectively. This phenomenon is attributed to the formation of Z-scheme heterojunction between N-TiO_(2) and PCNs, the excellent electron conduction ability of N-GQDs, and the short transfer distance caused by the porous nanotube structure. Compared with those of N-TiO_(2), PCNs, and TPCN-1, the H2 production activity of 0.1%G-TPCN under visible light is enhanced by 12.4, 2.3, and 1.4times, respectively, and its ciprofloxacin (CIP) degradation rate is increased by 7.9, 5.7, and 2.9 times, respectively. The optimized performance benefits from excellent photoresponsiveness and improved carrier separation and migration efficiencies. Finally, the photocatalytic mechanism of 0.1% G-TPCN and five possible degradation pathways of CIP are proposed. This study clarifies the mechanism of multiple modification strategies to synergistically improve the photocatalytic performance of 0.1% G-TPCN and provides a potential strategy for rationally designing novel photocatalysts for environmental remediation and solar energy conversion.

关键词： N-doped TiO_(2) N-doped graphene quantum dots P-doped g-C_(3)N_(4) porous hollow nanotube heterojunction photocatalysis

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Research on Demand Response Potential of Adjustable Loads in Demand Response Scenarios

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Energy Engineering 2024年第6期121卷 1577-1605页

作者： Zhishuo Zhang Xinhui Du yaoke Shang jingshu Zhang Wei Zhao Jia Su School of Electrical and Power Engineering Taiyuan University of TechnologyTaiyuan030000China

To address the issues of limited demand response data,low generalization of demand response potential evaluation,and poor demand response effect,the article proposes a demand response potential feature extraction and prediction model based on data mining and a demand response potential assessment model for adjustable loads in demand response scenarios based on subjective and objective weight ***,based on the demand response process and demand response behavior,obtain demand response characteristics that characterize the process and ***,establish a feature extraction and prediction model based on data mining,including similar day clustering,time series decomposition,redundancy processing,and data *** predicted values of each demand response feature on the response day are ***,the predicted data of various characteristics on the response day are used as demand response potential evaluation indicators to represent different demand response scenarios and adjustable loads,and a demand response potential evaluation model based on subjective and objective weight allocation is established to calculate the demand response potential of different adjustable loads in different demand response ***,the effectiveness of the method proposed in the article is verified through examples,providing a reference for load aggregators to formulate demand response schemes.

关键词： Demand response potential demand response scenarios data mining adjustable load evaluation system subjective and objective weight allocation

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Genome wide investigation of Hsf gene family in Phoebe bournei:identification,evolution,and expression after abiotic stresses

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Journal of Forestry Research 2024年第5期35卷 201-215页

作者： Wenhai Liao Xinghao Tang jingshu Li Qiumian Zheng Ting Wang Shengze Cheng Shiping Chen Shijiang Cao Guangqiu Cao College of Forestry Fujian Agriculture and Forestry UniversityFuzhou 350002People’s Republic of China University Key Laboratory of Forest Stress Physiology Ecology and Molecular Biology of Fujian ProvinceFuzhou 350002People’s Republic of China Fujian Academy of Forestry Sciences Fuzhou 350002People’s Republic of China College of Plant Protection Fujian Agriculture and Forestry UniversityFuzhou 350002People’s Republic of China

Heat shock transcription factors(Hsfs)have important roles during plant growth and development and responses to abiotic *** identification and func-tion of Hsf genes have been thoroughly studied in various herbaceous plant species,but not woody species,especially Phoebe bournei,an endangered,unique species in *** this study,17 members of the Hsf gene family were identi-fied from *** using bioinformatic ***-netic analysis indicated that PbHsf genes were grouped into three subfamilies:A,B,and *** motifs,three-dimensional structure,and physicochemical properties of the PbHsf proteins were also *** structure of the PbHsf genes varied in the number of exons and ***-diction of cis-acting elements in the promoter region indi-cated that PbHsf genes are likely involved in responses to plant hormones and stresses.A collinearity.analysis dem-onstrated that expansions of the PbHsf gene family mainly take place via segmental *** expression levels of PbHsf genes varied across different plant *** the basis of the expression profiles of five representative PbHsf genes during heat,cold,salt,and drought stress,PbHsf pro-teins seem to have multiple functions depending on the type of abiotic *** systematic,genome-wide investigation of PbHsf genes in *** and their expression patterns provides valuable insights and information for further func-tional dissection of Hsf proteins in this endangered,unique species.

关键词： Phoebe bournei Hsf gene family Evolutionary.analysis Expression mechanism Abiotic stresses

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Solid polymer electrolyte-based high areal capacity all-solid-state batteries enabled with ceramic interlayers

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Nano Research 2024年第10期17卷 8803-8808页

作者： Chenji Hu Daiqian Chen yage Huang Guoyong Xue Xi Liu jingshu Wang Jun Ma Bowen Chen Qi Chen Linsen Li yanbin Shen Liwei Chen School of Chemistry.and Chemical Engineering in-situ Center for Physical SciencesShanghai Electrochemical Energy Device Research Center(SEED)and Frontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai 200240China i-Lab CAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123China IDONANO Co Ltd Shanghai 201614China Future Battery Research Center Global Institute of Future TechnologyShanghai Jiao Tong UniversityShanghai 200240China

Solid polymer electrolytes(SPEs)based all-solid-state batteries(ASSBs)have attracted extensive attention as a promising candidate for next-generation energy storage *** ASSBs require high fabrication pressure to achieve high areal capacity,under which,however,SPEs struggle and risk damage or failure due to their low mechanical *** is also a lack of study on complex stress and strain SPEs experience during ASSB cell assembly ***,ceramic solid electrolytes are selected as interlayers to address the stress-strain conditions during *** a result,high areal capacity ASSBs with a LiCoO2 loading of 12 mg·cm^(-2) were assembled with SPE-based composite *** 200 cycles were carried out for these cells at a current density of 1 mA·cm^(-2) under room *** capacity decay of the battery at 200 cycles is observed to be as low as 0.06% per *** work identifies a critical issue for application of SPEs in ASSBs and provides a potential strategy for the design of SPE-based ASSBs with high specific energy.and long cycle life.

关键词： all-solid-state batteries ceramic interlayer solid polymer electrolyte high areal capacity

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Energy-efficient intermittent liquid heating of lithium-ion batteries in extreme cold using phase change materials

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Science China Technological Sciences 2024年

作者： LI KaiXuan ZHANG jingshu yAO XiaoLe HUANG ZiZe LI WenLong JU Xing XU Chao Key Laboratory of Power Station Energy Transfer Conversion and System of MOE North China Electric Power University

The electrochemical performance of lithium-ion batteries significantly deteriorates in extreme cold. Thus, to ensure battery safety under various conditions, various heating and insulation strategies are implemented. The present study proposes a hybrid heating approach combining active heating with passive insulation. Conceptual experiments were conducted to investigate the effects of phase change materials(PCMs), inlet water temperature, and intermittent pump startup strategies on battery performance. The obtained experimental results demonstrate that low temperatures lead to increased electrochemical impedance and reduced charge–discharge capacity in batteries. Notably, charge transfer resistance of 162 mΩ was observed at-30°C. Herein,the developed PCM-based battery heating system effectively extended the operational capacity of batteries in cold driving conditions and maintained battery warmth by leveraging the superior heat storage capability of the PCM. Additionally, after the switch off of the heating system, the charge capacity of the battery exceeded 80% owing to latent heat. The use of an intermittent heating strategy not only allowed to conserve energy but also maintained adequate heat storage within the battery module. At-30°C, this strategy enhanced the power efficiency of the cooling system by 35.94% with a reduction in capacity of only 0.8%compared to the continuous strategy.

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空间的法秩序:汉代河西走廊经略

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中国边疆史地研究 2024年第3期 62-70,214页

作者：董静姝中国政法大学法学院北京市昌平区102249

河西走廊在中国多民族空间内沟通中东部和西北边疆各民族,在欧亚大陆空间内联结中国西北和其他国家。汉朝深谙河西走廊这一“双重空间”重要枢纽所承载的法之精神,通过经略河西走廊、设置郡国、戍军屯田、移民实边等措施,一方面发掘边... 详细信息

河西走廊在中国多民族空间内沟通中东部和西北边疆各民族,在欧亚大陆空间内联结中国西北和其他国家。汉朝深谙河西走廊这一“双重空间”重要枢纽所承载的法之精神,通过经略河西走廊、设置郡国、戍军屯田、移民实边等措施,一方面发掘边疆民族地区治理之法,推动中华文明多元互构统一的进程;另一方面发掘中西经贸交往与文化交流之法,在更大范围内促进经济、文化多元性持存与“天下”构想的结合。汉朝经略河西走廊之法对于今天铸牢中华民族共同体意识及推动构建人类命运共同体依然发挥积极效用。

关键词：汉代河西走廊空间法秩序

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论科幻电影中“科学共同体”的形象建构及其在科学传播中的意义——以电影《流浪地球2》为例

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科普研究 2024年第1期19卷 87-93,108页

作者：安帅栗静舒中国科学院大学外语系北京101408 中国科学院古脊椎动物与古人类研究所北京100044

“科学共同体”是灾难叙事体裁的科幻电影中不可或缺的元素,被塑造成多种形象。作为科学传播的重要元素之一,“科学共同体”的电影形象影响着科学家、社会公众、大众传媒对于其丰富内涵的准确理解。本文从比较叙事学的视阈探讨“科学共... 详细信息

“科学共同体”是灾难叙事体裁的科幻电影中不可或缺的元素,被塑造成多种形象。作为科学传播的重要元素之一,“科学共同体”的电影形象影响着科学家、社会公众、大众传媒对于其丰富内涵的准确理解。本文从比较叙事学的视阈探讨“科学共同体”形象在科幻电影中的建构,以西方电影史为鉴,聚焦于其从“徒有虚名的松散组织”“阻碍科技进步的守旧者”到“救世主”等多重身份的转变,以当代中国科幻电影代表作《流浪地球2》为落脚点,揭示其东方文化印记和民族特色,进而指出,科幻电影中的“科学共同体”形象有助于加强科学精神与科技伦理的传播,有利于坚定人类对于自身在历史进程中的主导地位的信心,更是未来反思与重构这一群体的重要素材。

关键词：科学共同体科幻电影灾难叙事科学传播

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张弦式钢-竹组合工字形梁的短期受弯性能

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哈尔滨工业大学学报 2024年第1期56卷 93-102页

作者：单奇峰童科挺丁静姝李玉顺宁波大学土木工程与地理环境学院浙江宁波315211 青岛农业大学建筑工程学院山东青岛266109

为研究张弦式钢-竹组合工字形梁的受弯性能,以预应力水平、张弦及加载方式为基本参数,设计制作了12根张弦式钢-竹组合工字形梁进行受弯试验,观察分析了加载过程中组合梁的试验现象、破坏特征,探究了各参数对组合梁承载能力、应变分布、... 详细信息

为研究张弦式钢-竹组合工字形梁的受弯性能,以预应力水平、张弦及加载方式为基本参数,设计制作了12根张弦式钢-竹组合工字形梁进行受弯试验,观察分析了加载过程中组合梁的试验现象、破坏特征,探究了各参数对组合梁承载能力、应变分布、变形性能等的影响规律,并推导得出了张弦式组合梁承载力的近似计算公式。结果表明:张弦式组合梁的整体性能优良、组合效应突出,具有良好的变形性能及承载能力;张弦试件的破坏形态主要为翼缘竹材撕裂、局部钢材屈曲等破坏;施加预应力及提高预应力水平能有效增加组合梁的变形性能,以及在相同挠度控制条件下的承载能力,且采用二点张弦布置预应力筋时可获得更好的效果;张弦式组合梁跨中截面应变分布符合平截面假定,且随着预应力水平提高而中性轴下移;最后,基于理论计算得出的承载力与试验值较为接近且相对保守,近似计算公式具有较好的适用性。

关键词：组合结构张弦式钢-竹组合梁受弯性能张弦方式承载力计算

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生物炭和鸡粪改良剂对铅胁迫下番茄生理生化、铅吸收及土壤性质的影响

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江苏农业科学 2024年第9期52卷 181-188页

作者：胡静姝周新萍东莞城市学院环境工程系广东东莞523419

以铅(Pb)污染土壤(526.51 mg/kg)为基质进行盆栽试验,设置Pb胁迫下施用生物炭(30、60 g/kg, B1、B2)、鸡粪(30、60 g/kg, M1、M2)及其组合(B1+M1、B1+M2、B2+M1、B2+M2)处理,以不添加改良剂为对照处理(CK),探索生物炭和鸡粪改良剂对Pb... 详细信息

以铅(Pb)污染土壤(526.51 mg/kg)为基质进行盆栽试验,设置Pb胁迫下施用生物炭(30、60 g/kg, B1、B2)、鸡粪(30、60 g/kg, M1、M2)及其组合(B1+M1、B1+M2、B2+M1、B2+M2)处理,以不添加改良剂为对照处理(CK),探索生物炭和鸡粪改良剂对Pb胁迫下番茄生理生化、Pb吸收及相关土壤性质的影响。结果表明,生物炭、鸡粪相关处理均可提高番茄干物质量、株高、SPAD值、根系性状指标、根际土壤酶活性以及叶片抗氧化酶(SOD、POD、CAT)活性,降低丙二醛含量,从而减轻Pb胁迫对番茄产生的氧化应激。生物炭、鸡粪相关处理可显著降低番茄根系、地上部的Pb含量,介导土壤Pb形态转变,降低有效Pb含量。单施鸡粪改良剂对于促进番茄生长和提高叶片抗氧化酶活性更有效;单施生物炭处理在诱导土壤碱化和固定Pb方面更有效。生物炭和鸡粪的组合使用具有叠加效应,对番茄生长发育、叶片抗氧化酶活性和土壤酶活性的影响更大。与B1+M1处理相比,其他处理的番茄组织中的Pb含量和土壤有效Pb含量显著提高,番茄Pb生物富集系数、转移系数分别提高1.23%~58.28%、7.83%~40.89%。综上,生物炭和鸡粪组合使用在降低土壤Pb生物有效性、减少番茄Pb吸收、改良土壤性质以及促进番茄生长方面具有良好效果,以30 g/kg生物炭配施30 g/kg鸡粪改良剂效果最佳。

关键词：生物炭鸡粪铅吸收番茄生长抗氧化系统土壤酶活性

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“爱自己”还是“亲社会”——绿色消费利益诉求对绿色购买意愿的影响

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南开管理评论 2024年第2期27卷 83-93,I0016,I0017页

作者：孙瑾苗盼杨静舒对外经济贸易大学国际商学院山东女子学院工商管理学院浙江财经大学管理学院

驱动绿色消费行为产生的利益诉求有两种——基于利己主义的个人利益诉求和基于利他主义的社会利益诉求。企业在使用绿色广告时应传递个人利益诉求还是社会利益诉求才能更有效刺激绿色消费行为产生?为此,基于刻板印象内容模型,本研究探... 详细信息

驱动绿色消费行为产生的利益诉求有两种——基于利己主义的个人利益诉求和基于利他主义的社会利益诉求。企业在使用绿色广告时应传递个人利益诉求还是社会利益诉求才能更有效刺激绿色消费行为产生?为此,基于刻板印象内容模型,本研究探讨广告信息类型(能力信息v s.热情信息)对绿色消费利益诉求有效性的影响、边界条件及其内在机制。实验1探讨了广告信息类型与绿色消费利益诉求对绿色购买意愿的交互效应,发现当绿色广告传递个人利益诉求(v s.社会利益诉求)时使用能力信息(v s.热情信息)能够引发消费者更积极的绿色购买意愿。实验2验证了产品质量感知、集体效能感的中介作用,反映了绿色购买意愿具有不同的形成路径。此外,权力感调节绿色消费利益诉求与广告信息类型对绿色购买意愿的交互效应。

关键词：绿色消费利益诉求能力信息热情信息产品质量感知集体效能感权力感

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