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MoS2 as a cocatalyst applied in advanced oxidation processes for enhancing degradation of organic pollutants: a review

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Tungsten 2024年第3期6卷 473-487页

作者： ming-hao Fan Cong-Hui Wang Xiang Yu Jun Ding Ao-Qi Xiao Yue Li Wei-Ya Huang School of Material Science and Engineering Henan Polytechnic University School of Chemical and Printing-Dyeing Engineering Henan International Joint Laboratory of Rare Earth Composite Materials Henan University of Engineering School of Chemistry and Chemical Engineering Jiangxi University of Science and Technology Department of Chemical and Environmental Engineering University of Cincinnati

Fenton technology,as a typical advanced oxidation processes（AOPs）,can generate reactive oxygen species（ROS） of strong oxidation capacity to degrade organic pollutants,which has attracted wide ***,it is accompanied by the slow Fe3+/Fe2+cycle rate,easy to generate iron sludge and so ***,it has been proven that the inorganic cocatalysts represented by MoS2can effectively solve the above ***,MoS2can accelerate the activation of peroxy mono sulfate（PMS） and peroxodisulfate（PDS） by Fe2+.In this paper,MoS2as the cocatalyst in H2O2+Fe2+,PMS+Fe2+and PDS+Fe2+were comprehensively ***,the cycling processes of Fe3+/Fe2+in different systems,the cocatalytic effect of MoS2by the exposed active sites,the ROS generation mechanism as well as the microscopic mechanism during the reaction were elaborated *** results indicate that the reductive active sites on the surface of MoS2can promote the regeneration of Fe2+through the cycle between Fe3+/Fe2+and Mo4+/Mo5+/Mo6+.Thus,ROS such as ·OH,SO4·-and1O2with strong oxidizing property can be produced to improve the degradation efficiency of organic *** last,the challenges and developments of MoS2cocatalysts in AOPs for practical applications were *** review contributes to a deeper understanding of the cocatalytic effect of two-dimensional metal sulfides in AOPs and facilitates their industrial application.

关键词： Cocatalyst Fenton reaction Degradation of organic pollutant Molybdenum disufide Reactive oxygen species

Molecular solid solution of lanthanide-titanium-oxo clusters with enhanced photocatalytic hydrogen evolution

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Science China Chemistry 2024年第2期67卷 529-535页

作者： Rong Chen Chao-Long Chen Hui Zhang Zi-Han Wang Fu-Li Sun ming-hao Du Gui-Lin Zhuang Cheng Wang La-Sheng Long Lan-Sun Zheng Xiang-Jian Kong Collaborative Innovation Centre of Chemistry for Energy Materials State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China College of Chemical Engineering Zhejiang University of TechnologyHangzhou310032China

Molecular solid solutions of metal clusters containing different metal centers with well-defined structures can accurately regulate the HOMO-LUMO gap,but are rarely ***,a series of colorless lanthanide-titanium-oxo clusters Ln_(2)Ti_4(μ_(2)-O)_(2)(μ_(3)-O)_4(Piv)_(10)(THF)_(2)(Ln_(2)Ti_4,Ln = Eu,Gd,Tb,and Ce,HPiv = pivalic acid) were synthesized by the reaction of pivalic acid with Ln(Ac)_(3) and titanium *** light yellow crystal of cluster solid solutions Eu_(2)Ti_(4-x)Cd_(x),containing a mixture of Eu_(2)Ti_4 and Eu_(2)Ti_(3)Cd,was obtained by in situ doping Cd^(2+) and S^(2–).Eu_(2)Ti_(3.92)Cd_(0.08) displays efficient photocatalytic hydrogen evolution activity without a co-catalyst,which is up to 2.6 times that of Eu_(2)Ti_*** time-resolved transient absorption spectroscopy and spin-polarized density functional calculations showed that the enhanced photocatalytic performance of Eu_(2)Ti_(4-x)Cd_(x) can be attributed to the narrower HOMO-LUMO gap and lower LUMO position than that of Eu_(2)Ti_*** studyprovides an in situ doping method to realize the simple preparation of cluster solid solution.

关键词： molecular solid solution lanthanide-titanium-oxo clusters photocatalytic hydrogen evolution

Association of cardiometabolic multimorbidity with all-cause and cardiovascular disease mortality among Chinese hypertensive patients

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Journal of Geriatric Cardiology 2024年第2期21卷 211-218页

作者： Luo-Xi XIAO Zi-Yu WANG Jiang-Tao LI Hai-Mei WANG Yi-ming hao Pan ZHOU Yu-Lin HUANG Qiu-Ju DENG Yong-Chen hao Na YANG Li-Zhen HAN Zhao YANG Ping-Ping JIA Yue QI Jing LIU Center for Clinical and Epidemiologic Research Beijing Anzhen HospitalCapital Medical UniversityBeijing Institute of HeartLung and Blood Vessel DiseasesBeijing Municipal Key Laboratory of Clinical EpidemiologyBeijingChina

BACKGROUND Hypertension usually clusters with multiple ***,the association between cardiometabolic multimorbidity(CMM)and mortality in hypertensive patients is *** study aimed to investigate the association between CMM and all-cause and cardiovascular disease(CVD)mortality in Chinese patients with *** The data used in this study were from the China National Survey for Determinants of Detection and Treatment Status of Hypertensive Patients with Multiple Risk Factors(CONSIDER),which comprised 5006 participants aged 19–91 *** was defined as the presence of one or more of the following morbidities:diabetes mellitus,dyslipidemia,chronic kidney disease,coronary heart disease,and *** proportional hazard models were used to calculate the hazard ratios(HR)with 95%CI to determine the association between the number of CMMs and both all-cause and CVD *** Among 5006 participants[mean age:58.6±10.4 years,50%women(2509 participants)],76.4%of participants had at least one *** mortality rate was 4.57,4.76,8.48,and 16.04 deaths per 1000 person-years in hypertensive patients without any comorbidity and with one,two,and three or more morbidities,*** the fully adjusted model,hypertensive participants with two cardiometabolic diseases(HR=1.52,95%CI:1.09–2.13)and those with three or more cardiometabolic diseases(HR=2.44,95%CI:1.71–3.48)had a significantly elevated risk of all-cause *** findings were similar for CVD mortality but with a greater increase in risk *** In this study,three-fourths of hypertensive patients had *** with two or more comorbidities was associated with a significant increase in the risk of all-cause and cardiovascular mortality among hypertensive patients,suggesting more intensive treatment and control in this high-risk patient group.

关键词： hypertensive patients morbidity

Stepped-up development of accelerator mass spectrometry method for the detection of ^(60)Fe with the HI-13 tandem accelerator

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Nuclear Science and Techniques 2024年第4期35卷 136-143页

作者： Yang Zhang Sheng-Quan Yan ming He Qing-Zhang Zhao Wen-Hui Zhang Chao-Xin Kan Jian-ming Zhou Kang-Ning Li Xiao-Fei Wang Jian-Cheng Liu Zhao-Hua Peng Zhuo Liang Ai-Ling Li Jian Zheng Qi-Wen Fan Yun-Ju Li You-Bao Wang Zhi-Hong Li Yang-Ping Shen Ding Nan Wei Nan Yu-Qiang Zhang Jia-Ying-hao Li Jun-Wen Tian Jiang-Lin Hou Chang-Xin Guo Zhi-Cheng Zhang ming-hao Zhu Yu-Wen Chen Yu-Chen Jiang Tao Tian Jin-Long Ma Yi-Hui Liu Jing-Yu Dong Run-Long Liu Mei-Yue-Nan Ma Yong-Shou Chen Wei-Ping Liu Bing Guo China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China College of Science Southern University of Science and TechnologyShenzhen 518055China School of Physics Xi’an Jiaotong UniversityXi’an 710049China

The Moon provides a unique environment for investigating nearby astrophysical events such as *** samples retain valuable information from these events,via detectable long-lived“fingerprint”radionuclides such as^(60)*** this work,we stepped up the development of an accelerator mass spectrometry(AMS)method for detecting^(60)Fe using the HI-13tandem accelerator at the China Institute of Atomic Energy(CIAE).Since interferences could not be sufficiently removed solely with the existing magnetic systems of the tandem accelerator and the following Q3D magnetic spectrograph,a Wien filter with a maximum voltage of±60 kV and a maximum magnetic field of 0.3 T was installed after the accelerator magnetic systems to lower the detection background for the low abundance nuclide^(60)Fe.A 1μm thick Si_(3)N_(4) foil was installed in front of the Q3D as an energy *** particle detection,a multi-anode gas ionization chamber was mounted at the center of the focal plane of the ***,an^(60)Fe sample with an abundance of 1.125×10^(-10)was used to test the new AMS *** results indicate that^(60)Fe can be clearly distinguished from the isobar^(60)*** sensitivity was assessed to be better than 4.3×10^(-14)based on blank sample measurements lasting 5.8 h,and the sensitivity could,in principle,be expected to be approximately 2.5×10^(-15)when the data were accumulated for 100 h,which is feasible for future lunar sample measurements because the main contaminants were sufficiently separated.

关键词： Accelerator mass spectrometry Wien filter Isobar separation Supernovae Chang'e-5 lunar samples

治理吸纳执法:乡镇行政执法何以运行——基于中部多个乡镇综合执法改革的经验考察

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华中科技大学学报（社会科学版） 2024年第3期38卷 95-105页

作者：纪芳褚明浩武汉大学社会学院中国地质大学(武汉)公共管理学院

近年来国家不断强调治理重心下移,行政执法权下沉是其重要表现。以执法下沉为目标的行政执法改革旨在通过行政执法权的属地化配置缓解乡镇治理权责失衡的困境,促进基层治理规范化。但实践中,乡镇行政执法形成“治理吸纳执法”的运行特征... 详细信息

近年来国家不断强调治理重心下移,行政执法权下沉是其重要表现。以执法下沉为目标的行政执法改革旨在通过行政执法权的属地化配置缓解乡镇治理权责失衡的困境,促进基层治理规范化。但实践中,乡镇行政执法形成“治理吸纳执法”的运行特征,即行政执法作为“条条”体制下的一种专业化事权呈现出“块块”主导的属地化运作,这源于乡村社会的弱执法需求以及伴随多中心工作而来的乡镇治权弱化。行政执法下沉客观上为乡镇提供了新的治理工具,但并未带来预期的执法效益,也没有根本改变乡镇治权不足的结构性困境。乡镇治理权力具有多样性和复杂性,基于乡镇治理情景,具体分析行政执法权的性质,才能正确理解行政执法权在乡村治理中的功能定位以及行政执法改革对乡镇治理的意义。

关键词：乡镇治理行政执法改革综合执法治理吸纳执法乡镇治权

江苏省耕地非粮化时空格局演变及驱动因素分析

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长江流域资源与环境 2024年第2期33卷 436-447页

作者：徐畅郭杰易家林欧名豪南京农业大学公共管理学院江苏南京210095 农村土地资源利用与整治国家地方联合工程研究中心江苏南京210095 南京农业大学中国资源环境与发展研究院江苏南京210095

研究江苏省耕地非粮化时空特征及其驱动因素,为保护耕地和保障粮食安全的政策制定提供参考。基于耕地非粮化的影响机制解析,选择江苏省作为研究区域,分析1996~2020年县域耕地非粮化时空格局演变及其驱动机制,并采用主成分分析法研究驱... 详细信息

研究江苏省耕地非粮化时空特征及其驱动因素,为保护耕地和保障粮食安全的政策制定提供参考。基于耕地非粮化的影响机制解析,选择江苏省作为研究区域,分析1996~2020年县域耕地非粮化时空格局演变及其驱动机制,并采用主成分分析法研究驱动机制及其区域分异。结果表明:(1)江苏省耕地非粮化面积和比率呈现倒“U”型的变化趋势,面积由2322.49千hm2上升到2704.78千hm2后降至2072.76千hm2,比率由19.28%上升至35.46%后降至27.72%;(2)全省县域耕地非粮化率分布具有显著空间集聚特征,整体呈现苏南的高高聚集和苏中、苏北的低低聚集为主,前期为苏北低-近沪地区高,后期主要呈现苏中低-苏南高聚集格局;(3)基于长时序面板数据分析发现,地均GDP和城乡居民可支配收入比与耕地非粮化率呈显著正相关,老龄化程度与非粮化率呈显著负相关关系;(4)经济欠发达地区更容易受社会经济因子影响,经济较发达地区非粮化更易受经营者生产决策影响,资源禀赋较差地区更倾向于非粮化种植。

关键词：耕地非粮化作用机制时空格局演变江苏省

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海洋气象观测无人艇初步设计

船海工程 2024年第2期53卷 11-15页

作者：祁明浩中国船舶集团有限公司第七一六研究所江苏连云港222061

针对海洋气象观测对载体平台的需求,设计一型适应于高海况的无人艇,用于搭载气象观测设备。设计方案主要包括艇型的选择、主尺度的确定、线型设计、信息系统集成、总布置,以及运行流程设计等。该无人艇具备自主航行和自主气象观测能力,... 详细信息

针对海洋气象观测对载体平台的需求,设计一型适应于高海况的无人艇,用于搭载气象观测设备。设计方案主要包括艇型的选择、主尺度的确定、线型设计、信息系统集成、总布置,以及运行流程设计等。该无人艇具备自主航行和自主气象观测能力,可执行远海气象观测任务,扩大了海洋气象观测范围,提高了海洋气象预报能力。

关键词：无人艇气象观测总体设计系统集成

基于混合果蝇算法的桩锚支护深基坑临界滑面搜索

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东北大学学报（自然科学版） 2024年第1期45卷 120-128页

作者：马泽宁沙成满路明浩东北大学资源与土木工程学院辽宁沈阳110819

进行基坑整体稳定性分析常采用极限平衡法,但仍然需要依据经验试算一系列滑面,将安全系数最小的滑面确定为最危险滑面.针对此问题,提出将果蝇优化(FOA)算法与禁忌搜索(TS)算法融合,提出自适应步长的混合果蝇优化算法(HFOA),以克服基本... 详细信息

进行基坑整体稳定性分析常采用极限平衡法,但仍然需要依据经验试算一系列滑面,将安全系数最小的滑面确定为最危险滑面.针对此问题,提出将果蝇优化(FOA)算法与禁忌搜索(TS)算法融合,提出自适应步长的混合果蝇优化算法(HFOA),以克服基本果蝇算法局部寻优精度不高且易陷入局部最优的缺点,确保获得全局最优解,并结合简化Bishop算法用于临界滑面的搜索.在Matlab中编程实现该算法,通过与6种启发式算法进行对比,结果表明,HFOA适用于均质土悬臂支护基坑、成层土和含软弱夹层的桩锚支护基坑,相较于遗传算法等6种算法具有更快的收敛速度、更高的收敛精度和可靠性,为深基坑临界滑动面搜索提供了一种新的求解策略.

关键词：深基坑整体稳定性果蝇优化算法禁忌搜索算法最小安全系数

以传统推进人的现代化何以可能——定县实验的现代意义

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河北学刊 2024年第5期44卷 173-182页

作者：宣朝庆杜明浩南开大学社会学院

定县实验作为20世纪中国乡村建设运动的代表,常被冠以西化的标签,近来其传统维度虽偶被论及,但既不系统,也不深入。通过对定县实验的“新民”目标、推行平民教育的方式以及实验中知识分子的精神动力考察发现,在这些方面定县实验均使用... 详细信息

定县实验作为20世纪中国乡村建设运动的代表,常被冠以西化的标签,近来其传统维度虽偶被论及,但既不系统,也不深入。通过对定县实验的“新民”目标、推行平民教育的方式以及实验中知识分子的精神动力考察发现,在这些方面定县实验均使用了大量的传统文化资源,这意味着定县实验并非“全盘西化”的乡村建设,而是多方面的工作都自觉地从中国传统文化中汲取资源。定县实验对中国传统文化的借鉴并不是因袭守旧,而是秉持现代化的立场,体现着创造性转化的精神,从而推进了对定县实验更全面的认识,也为如何对传统文化加以创造性转化以更好地为现代化服务提供了借鉴。

关键词：定县实验传统维度现代化