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In-situ growth of MIL-53(Fe)on charcoal sponge as a highly efficient and recyclable photocatalyst for removal of Cr(Ⅵ)

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Rare Metals 2024年第9期43卷 4344-4355页

作者： Zhuo-Fan Yu Ye Yang Hai-Feng Zhuang sheng-dao shan Mihail-Simion Beldean-Galea Qing-Quan Xue Xiao-Feng Shen Shi-Jie Li Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province School of Environmental and Natural ResourcesZhejiang University of Science and TechnologyHangzhou 310023China Faculty of Environmental Science and Engineering Babes-Bolyai University400294 Cluj-NapocaRomania Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province Interdisciplinary Research Academy(IRA)Zhejiang Shuren UniversityHangzhou 310015China National Engineering Research Center for Marine Aquaculture Institute of Innovation&ApplicationZhejiang Ocean UniversityZhoushan 316022China

The application of metalDorganic frameworks(MOFs)is hindered by several crucial factors,including low photocatalytic efficiency,poor stability and challenges in *** this study,MIL-53(Fe)was grown in situ on a charcoal sponge(CS)with a large surface area,excellent mechanical properties,and high photocatalytic efficiency using a solvothermal method,thus addressing the above-mentioned shortcomings of MOF ***,CS/MIL-53(Fe)has an amazing light-harvesting capacity in the visible range,leading to a significant improvement in the utilization of *** results of the experiments indicate that CS/MIL-53(Fe)displays a higher photocatalytic activity(87%Cr(Ⅵ))when exposed to visible light than CS(58%)or MIL-53(Fe)(27%),attributing to the increased separation of photogenerated carriers.e-is the main reactive radical and dominates the photocatalytic reduction process,rooting from that e-can reduce Cr(Ⅵ)to low-toxicity Cr(Ⅲ).This study presents a novel method for constructing photocatalysts with large surface areas,superior mechanical characteristics,and enhanced photocatalytic ***,it achieves the resource utilization of agricultural and forestry waste.

关键词： Cr(Ⅵ) Charcoal sponge MIL-53(Fe) Photocatalysis Light absorption

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Recent progress and strategies of cathodes toward polysulfides shuttle restriction for lithium-sulfur batteries

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Rare Metals 2024年第9期43卷 4132-4161页

作者： Xing-You Rao Shuang-Fei Xiang Jian Zhou Zhen Zhang Xiang-Yu Xu Yuan-Yuan Xu Xin-Chi Zhou Zheng-dao Pan Su-Chong Tan Shi-Xing Dong Zhou-Lu Wang Yu-Tong Wu Yun-Lei Zhou Xiang Liu Yi Zhang shan Jiang School of Energy Sciences and Engineering Nanjing Tech UniversityNanjing 211816China School of Materials Science and Engineering and Institute of Smart Fiber Materials Zhejiang Sci-Tech UniversityHangzhou 310018China JiangSu Sailboat Petrochemical Co. LtdLianyungang 222000China Hangzhou Institute of Technology Xidian UniversityHangzhou 311200China

Lithium-sulfur batteries(LSBs)have already developed into one of the most promising new-generation high-energy density electrochemical energy storage systems with outstanding features including high-energy density,low cost,and environmental ***,the development and commercialization path of LSBs still presents significant limitations and challenges,particularly the notorious shuttle effect triggered by soluble longchain lithium polysulfides(LiPSs),which inevitably leads to low utilization of cathode active sulfur and high battery capacity degradation,short cycle life,*** research efforts have been conducted to develop various sulfur host materials capable of effectively restricting the shuttle *** review firstly introduces the fundamental electrochemical aspects of LSBs,followed by a comprehensive analysis of the mechanism underlying the shuttle effect in Li–S batteries and its profound influence on various battery components as well as the overall battery ***,recent advances and strategies are systematically reviewed,including physical confinement,chemisorption,and catalytic conversion of sulfur hosts for restricting LiPSs shuttle *** interplay mechanisms of sulfur hosts and LiPSs are discussed in detail and the structural advantages of different host materials are ***,key insights for the rational design of advanced host materials for LSBs are provided,and the upcoming challenges and the prospects for sulfur host materials in lithium-sulfur batteries are also explored.

关键词： Lithium-sulfur batteries Polysulfides Shuttle effect Host

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U-Pb dating of monazite in the Bainiuchang silver polymetallic deposit,Yunnan Province,and its limitation on Mesozoic mineralization

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China Geology 2024年第3期7卷 592-595页

作者： Bo-de Lu Wen-chang Li Xue-long Liu Guang-zhi Meng Qi-he Long Hong Zhang Jun-shan dao Fang-lan Li Jie-hu Zhou Mao-huang Fan Xue Mi Nan Shi Zhen-liang Cao College of Land Resources and Engineering Kunming University of Science and TechnologyKunming 650093China Geological Team 306 of Yunnan Non-ferrous Metals Geological Bureau Kunming 650217China Mengzi Mining and Metallurgy Co. Ltd.Mengzi 661199China

*** The Gejiu-Bozhushan-Laojunshan tin-tungsten polymetallic metallogenic belt is located in southeastern *** is bounded by the Mile-Shizong Fault and the Yangzi Plate to the north and west,respectively,while the Honghe Fault represents its southwestern *** is adjacent to the Ailaoshan Fault,and extends to Guangxi and Vietnam to the southeast(Fig.1a;Liu JP et al.,2021).

关键词： silver dating southeast

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Analytical solution for 1D consolidation of unsaturated soil with mixed boundary condition

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第1期14卷 61-70页

作者： Zhen-dong shan dao-sheng LING Hao-jiang DING MOE Key Lab of Soft Soils and Geo-environmental Engineering Zhejiang University Institute of Engineering Mechanics China Earthquake Administration

Based on consolidation equations proposed for unsaturated soil, an analytical solution for 1D consolidation of an unsaturated single-layer soil with nonhomogeneous mixed boundary condition is developed. The mixed boundary condition can be used for special applications, such as tests occur in laboratory. The analytical solution is obtained by assuming all material parameters remain constant during consolidation. In the derivation of the analytical solution, the nonhomogeneous boundary condition is first transformed into a homogeneous boundary condition. Then, the eigenfunction and eigenvalue are derived according to the consolidation equations and the new boundary condition. Finally, using the method of undetermined coefficients and the orthogonal relation of the eigenfunction, the analytical solution for the new boundary condition is obtained. The present method is applicable to various types of boundary conditions. Several numerical examples are provided to investigate the consolidation behavior of an unsaturated single-layer soil with mixed boundary condition.

关键词： Unsaturated soil Consolidation Mixed boundary condition Analytical solution

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丛枝菌根真菌提高入侵杂草南美蟛蜞菊对除草剂的耐受性

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植物生态学报 2024年第5期48卷 651-659页

作者：胡蝶蒋欣琪戴志聪陈戴一张雨祁珊珊杜道林江苏大学农业工程学院江苏镇江212013 江苏大学环境与安全工程学院环境生态研究所江苏镇江212013 江苏大学京江学院江苏镇江212013

入侵杂草南美蟛蜞菊(Sphagneticola trilobata)的优势生长严重危害本土植物群落和生态系统的稳定性。近年来,化学防治依然是最主要的杂草防控手段。丛枝菌根真菌(AMF)作为一种菌根共生体,在宿主植物的生长和抵抗外界环境胁迫中起到重要... 详细信息

入侵杂草南美蟛蜞菊(Sphagneticola trilobata)的优势生长严重危害本土植物群落和生态系统的稳定性。近年来,化学防治依然是最主要的杂草防控手段。丛枝菌根真菌(AMF)作为一种菌根共生体,在宿主植物的生长和抵抗外界环境胁迫中起到重要的作用。该研究通过温室控制实验设置4种处理方式:对照组、只接种AMF、只喷施除草剂以及喷施除草剂并接种AMF,以验证AMF是否在入侵杂草南美蟛蜞菊响应除草剂中起到重要作用。结果显示:在草甘膦铵盐除草剂的胁迫下,南美蟛蜞菊的菌根侵染率、泡囊数以及菌根侵染丰度等级占比都显著上升;相比于只喷施除草剂处理,接种AMF显著增加南美蟛蜞菊的叶面积、地上生物量和根冠比,显著减少黄酮醇相对含量以及叶片损害数。首次发现与AMF的共生能缓解除草剂对入侵杂草南美蟛蜞菊的胁迫。因此,在杂草的化学防治过程中,与AMF的共生可能极大提高杂草对除草剂的抗性,可为入侵杂草的有效防控提供新的思考途径。

关键词：南美蟛蜞菊丛枝菌根真菌草甘膦铵盐除草剂植物微生物互作

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施用猪粪生物炭对酸性和石灰性水稻土颗粒态和矿物结合态有机碳含量及化学结构的影响

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植物营养与肥料学报 2024年第3期30卷 441-456页

作者：袁梦婷李子川孟俊张敏叶郑豪单胜道胡敏骏徐君柴彦君浙江科技大学环境与资源学院/浙江省废弃生物质循环利用与生态处理技术重点实验室浙江杭州310023 杭州市富阳区农业农村局农技推广中心浙江富阳311400

[目的]土壤颗粒态有机碳(POC)和矿物结合态有机碳(MAOC)是土壤有机碳库的主要组成,了解施用生物炭对其含量变化及其在土壤总有机碳中的占比和化学组成特征,对认识土壤有机碳动态变化具有重要意义。[方法]于2019年,分别在杭州市富阳区的... 详细信息

[目的]土壤颗粒态有机碳(POC)和矿物结合态有机碳(MAOC)是土壤有机碳库的主要组成,了解施用生物炭对其含量变化及其在土壤总有机碳中的占比和化学组成特征,对认识土壤有机碳动态变化具有重要意义。[方法]于2019年,分别在杭州市富阳区的酸性和石灰性水稻土上进行猪粪生物炭施用量和方法定位试验,种植制度为单季水稻。试验设置6个处理:常规施化肥(NPK),NPK基础上施用猪粪4.5 t/(hm^(2)·a)(SM),NPK基础上施用猪粪生物炭4.5 t/(hm^(2)·a)(SBc1)、11.25 t/(hm^(2)·a)(SBc2)、22.5 t/(hm^(2)·a)(SBc3),以及猪粪生物炭一次性施用112.5 t/hm^(2)(SBc4)。2021年(第3年)水稻收获后,采集0-20 cm耕层土壤样品,分析其基本理化性质,并将土壤样品分为250~2000μm(粗颗粒态有机物),53~250μm(细颗粒态有机物)和0.05)。傅里叶红外光谱特征测定结果表明,施用猪粪和猪粪生物炭对两种水稻土各粒级中主要有机化合物的类型无显著影响,但会影响其比例,与NPK处理相比,SBc3和SBc4处理分别显著增加了酸性水稻土有机碳中芳香族化合物的比例19.5%和38.0%,降低了酚醇碳族化合物的比例7.8%和17.9%,显著降低了石灰性水稻土有机碳中芳香族化合物的比例21.0%和19.1%,增加了酚醇族化合物的比例19.1%和33.2%(P<0.05)。[结论]对于较高的猪粪生物炭施用量,不论一次性施用还是逐年施用均可显著增加水稻土总有机碳含量,且粗颗粒有机碳增加幅度大于细颗粒,而对矿物结合态有机碳含量无显著影响。施用猪粪生物炭对土壤有机碳主要组成有机化合物无显著影响,但会增加酸性水稻土有机碳的稳定性,而降低石灰性水稻土有机碳的稳定性。相同施用量下,猪粪生物炭提高酸性水稻土有机碳含量的作用高于石灰性水稻土。本试验结果可为猪粪生物炭在农田的科学应用提供技术支撑和理论依据。

关键词：猪粪生物炭水稻土颗粒态有机碳矿物结合态有机碳分子结构

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Evidence-based appraisal in laparoscopic Nissen and Toupet fundoplications for gastroesophageal reflux disease

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World Journal of Gastroenterology 2010年第24期16卷 3063-3071页

作者： shan, Cheng-Xiang Zhang, Wei Zheng, Xiang-Min Jiang, dao-Zhen Liu, sheng Qiu, Ming Second Mil Med Univ Changzheng Hosp Dept Minimally Invas Surg Shanghai 200003 Peoples R China

AIM: To demonstrate the optimal surgical procedure for gastroesophageal reflux disease. METHODS: The electronic databases of Medline, Elsevier, Springerlink and Embase over the last 16 years were searched. All clinical trials involved in the outcomes of laparoscopic Nissen fundoplication (LNF) and laparoscopic Toupet fundoplication (LTF) were identified. The data of assessment in benefits and adverse results of LNF and LTF were extracted and compared using metaanalysis. RESULTS: We ultimately identified a total of 32 references reporting nine randomized controlled trials, eight prospective cohort trials and 15 retrospective trials. These studies reported a total of 6236 patients, of whom 4252 (68.18%) underwent LNF and 1984 (31.82%) underwent LTF. There were no differences between LNF and LTF in patients' satisfaction, perioperative complications, postoperative heartburn, refluxrecurrence and reoperation. Both LNF and LTF enhanced the function of lower esophageal sphincter and improved esophagitis. The postoperative dysphagia, gasbloating syndrome, inability to belch and the need for dilatation after LNF were more common than after LTF. Subgroup analyses showed that dysphagia after LNF and LTF was similar in patients with normal esophageal peristalsis (EP), but occurred more frequently in patients with weak EP after LNF than after LTF. Furthermore, patients with normal EP after LNF still had a higher risk of developing dysphagia than did patients with abnormal EP after ***: Compared with LNF, LTF offers equivalent symptom relief and reduces adverse results.

关键词： Laparoscopic fundoplication Nissen, Toupet Gastroesophageal reflux disease Antireflux surgery Esophageal peristalsis Metaanalysis

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A novel MC DS-CDMA system scheme with high spectral efficiency

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The Journal of China Universities of Posts and Telecommunications 2006年第3期13卷 11-15页

作者： MIAO De-shan LI dao-ben School of Information Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

This article presents a novel multicarrier direct sequence code-division multiple-access （MC DS-CDMA） scheme based on the loosely synchronous （LS） codes, which can achieve very high spectral efficiency. Instead of the single subcarrier modulation in a conventional MC DS-CDMA scheme, this novel scheme introduces the nonorthogonal subcarrier-group modulation, whose interferences caused by the non-orthogonal spacing in a subcarrier group can be reduced by a multicode detector. A detailed analysis for this system architecture and also a multiple-input-multiple output （MIMO） MC DS-CDMA solution to satisfy the requirement of beyond 3G mobile communication system are proposed. Simulated results demonstrate that this scheme can obtain excellent bit error rate （BER） performance, as well as achieve more than twice the spectral efficiency as that of conventional MC DS-CDMA systems.

关键词： MC DS-CDMA LS Code subcarrier-group

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加味金匮肾气丸预防单倍型异基因造血干细胞移植后出血性膀胱炎的疗效观察

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中国新药与临床杂志 2024年第9期43卷 680-685页

作者：刘慧霞冯赟赵初娴邵珊王椿魏道林上海闸新中西医结合医院骨髓移植科上海200435 上海交通大学医学院附属第一人民医院消化科上海200080

目的观察加味金匮肾气丸预防单倍型异基因造血干细胞移植后出血性膀胱炎(HC)的临床疗效。方法对2020年1月至2023年10月接受单倍型异基因造血干细胞移植的65例血液病患者进行前瞻性队列研究,31例接受加味金匮肾气丸(5 g,每日2次口服)为... 详细信息

目的观察加味金匮肾气丸预防单倍型异基因造血干细胞移植后出血性膀胱炎(HC)的临床疗效。方法对2020年1月至2023年10月接受单倍型异基因造血干细胞移植的65例血液病患者进行前瞻性队列研究,31例接受加味金匮肾气丸(5 g,每日2次口服)为肾气丸组,不接受肾气丸的34例为对照组。比较2组患者HC的累积发生率、临床特征及尿病毒检出率。中位随访时间为277(65,624)d。结果肾气丸组HC累积发生率为(29±3)%,对照组为(53±3)%,肾气丸组显著低于对照组(P0.05)。2组患者移植后尿液BK病毒(BKV)阳性率分别为42%和68%,肾气丸组显著低于对照组(P<0.05)。结论加味金匮肾气丸能够降低单倍型异基因造血干细胞移植后HC的累积发生率,可能与尿路BKV感染率降低有关。

关键词：加味金匮肾气丸造血干细胞移植单倍型膀胱炎

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醋酸稀土应用及研究进展

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稀土 2024年第4期45卷 30-40页

作者：姜道宽赵小杨杨启山付东磊内蒙古科技大学化学与化工学院内蒙古包头014010

醋酸稀土在催化、缓蚀、发光、电池及医药等领域被广泛应用,展现出巨大的发展空间。醋酸稀土晶体在空气中不会受潮粘连,具备优良的水溶性和良好的热稳定性。随着对醋酸稀土研究的深入,醋酸稀土必将在工业材料领域发挥更重要的作用。本... 详细信息

醋酸稀土在催化、缓蚀、发光、电池及医药等领域被广泛应用,展现出巨大的发展空间。醋酸稀土晶体在空气中不会受潮粘连,具备优良的水溶性和良好的热稳定性。随着对醋酸稀土研究的深入,醋酸稀土必将在工业材料领域发挥更重要的作用。本文综述了醋酸稀土的常见合成方法,着重阐述了其在催化剂、缓蚀剂、电池、医药等领域的前沿性研究成果,并对未来发展趋势进行展望。

关键词：醋酸稀土一步法制备稀土掺杂有机酸稀土醋酸稀土应用机理

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