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Remarkably Enhanced Photodegradation of Organic Pollutants by NH_(2)-UiO-66/ZnO Composite under Visible-Light Irradiation

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Journal of Renewable Materials 2022年第9期10卷 2377-2390页

作者： Dehong Teng Jing Zhang Xinzhi Luo Fei Jing Hengwei Wang Jing Chen Chao Yang Shaohong Zang Yingtang Zhou National Engineering Research Center for Marine Aquaculture Zhejiang Ocean UniversityZhoushan316004China Marine Science and Technology College Zhejiang Ocean UniversityZhoushan316004China

Semiconductor photocatalysis is a novel highly efficient and low-cost method for removing organic pollutants from ***,the photoreduction performance of semiconductors on organic pollutants is limited due to the weak absorption of visible light caused by its wide band gap and low carrier utilization rate resulting from severe electron-holes *** the present study,flower-like NH_(2)-UiO-66(NU66)/ZnO nanocomposites were prepared using a facile method and exhibited high efficiency under visible light driven *** X-ray diffractometer(XRD),scanning electron microscope(SEM),transmitor electron microscope(TEM),and X-ray photoelectron spectroscopy(XPS)were used to characterize the prepared samples,indicating that NU66/ZnO was successfully *** photocatalytic activity of the prepared NU66/ZnO nanocomposites was determined by measuring the photodegradation of methylene blue(MB)and malachite green(MG)under visible-light *** optimal nanocomposite loading of 5%wt NU66 to NU66/ZnO demonstrated the highest photocatalytic activity for the degradation of *** photocatalytic activity of a 5%NU66/ZnO composite was approximately 95-fold and 19-fold higher than that of NU66 and ZnO samples,*** enhanced activity of the 5%wt NU66/ZnO nanocomposite was further confirmed through photoelectrochemical *** formation of type II heterojunctions between the counterparts significantly suppressed recombination of the photogenerated charge *** degradation experiments with different quenchers indicated that the effect of superoxide anion radicals(•O_(2)^(−))had a greater effect than the other ***,the improved photocatalytic mechanism underlying the activity of NU66/ZnO nanocomposites was also *** findings establish a basis for development of MOF based heterojunction for photocatalytic organic pollution remediation.

关键词： Photodegradation heterojunction MOF NH_(2)-UiO-66 ZnO

EFFECTS OF WATER-DEPTH ON HYDRODYNAMIC FORCE OF ARTIFICIAL REEF

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Journal of Hydrodynamics 2007年第3期19卷 372-377页

作者： MIAO Zhen-qing XIE Yong-he College of Environmental Science and Engineering Ocean University of China Qingdao 266003 China School of Naval Architecture and Civil Engineering Zhejiang Ocean University Zhoushan 316004China School of Naval Architecture and Civil Engineering Zhejiang Ocean University Zhoushan 316004 China

The effects of water-depth on the hydrodynamic force of the artificial reef were studied by simulating regular and irregular waves. The computational results show that the water-depth has a substantial effect on hydrodynamic force. The hydrodynamic force increases with the decrease of water-depth in shallow. Especially, in the ultra-shallow water these loads increase very evidently with the decrease of water-depth. The long-term values of hydrodynamic force increase with the decrease of the ratio of water-depth to reef height, and are about 10% larger than those of deep water when the ratio of water-depth to reef height is 4.0. However water-depth hardly affects the long term values of hydrodynamic force when the ratio of water-depth to reef height is larger than 6.0.

关键词： artificial reef water-depth hydrodynamic force

DESIGN REUSE METHOD FOR ASSEMBLIES IN CONCEPT DESIGN

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Chinese Journal of Mechanical Engineering 2005年第1期18卷 132-138页

作者： DongYan TanJianrong XuJing StateKeyLaboratoryofCAD＆CG ZhejiangUniversityHangzhou310027China DepartmentofMechanicalEngineenng ZhejiangOceanUniversityZhoushan316004China

Aiming at difficult sorting and retrieving complicated structure assembliesin assembly lib, a method for compartmentalizing assembly design resource by conceptual productstructure model is presented. The similar assembly retrieval mechanisms of symbol assembly relationgraph matching and symbol assembly relation graph similarity are discussed. The method is validatedby taking valve rod assemblies as example.

关键词： Design reuse Similar assembly retrieval Assembly design lib

Estimation of Parameter in the Case of Zero-Failure Data

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Journal of Systems Science and Systems Engineering 2001年第4期13卷 450-456页

作者： HAN Ming DePartment of Mathematics, Zhejiang Ocean University, Zhoushan 316004, China Department of Mathematics Zhejiang Ocean University Zhoushan 316004 China

In this paper, for zero-fai1ure data (t,, n1), at moment ti, if the prior distribution of the failure probability p, = P {T 详细信息

In this paper, for zero-fai1ure data (t,, n1), at moment ti, if the prior distribution of the failure probability p, = P {T

关键词： reliability zero-failure data failure probabi1ity hierarchical Biyesian estimation

Optical properties of conductive silver-nanowire films with different nanowire lengths

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Nano Research 2017年第11期10卷 3706-3714页

作者： Xiaoming Yu Xuan Yu Jianjun Zhang Liqiao Chen Yunqian Long Dekun Zhang Innovation Application Institute Zhejiang Ocean University Zhoushan 316004 China College of Electronic Information and Optical Engineering Nankai University Tianjin 300071 China

Transparent electrodes made of silver nanowires （Ag NWs） exhibit a higher flexibility than conventional indium tin oxide *** this reason,Ag NWs may find applications in future flexible electronic and optoelectronic ***,different optoelectronic devices have different specific requirements for Ag *** example,the optical transmittance haze is an important but rarely studied aspect of Ag NW *** this study,the optical transmittance and optical scattering of long （5-50 μm,L-NWs） and short （1-20 μm,S-NWs） Ag NW films were *** L-NWs exhibited better optical transmission than the S-NWs,whereas the S-NWs exhibited better light-scattering properties than the *** results indicate that the L-NWs are suitable for touch-screen displays,whereas the S-NWs are better suited as transparent conductive films for solar *** analyzed the scattering ratio of forward-scattered light to backscattered light for both the L-NWs and S-NWs and discovered that the mesh size affected the scattering *** longer wavelengths,a larger mesh yielded a higher backscattering ratio,whereas a smaller mesh yielded a lower backscattering *** formulated an equation for calculating the reflection haze using the total reflection （Ag NWs/glass）,R and the reflection of glass,*** reflection haze of the S-NWs and L-NWs exhibited different trends in the visible-near-infrared *** omnidirectional scattering model for the Ag NWs was used to evaluate the Ag NW scattering *** results of this study have great significance for the evaluation of the performance of Ag NWs in optoelectronic devices.

关键词： transparent electrode silver nanowires transmittance haze factor forward scattering and backscattering reflection-haze factor

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渔船用柴油机废气再循环系统的数值模拟

机械设计与制造 2012年第7期 139-141页

作者：周碧朱从容浙江海洋学院机电工程学院舟山316004

为了降低渔船用柴油机的NOx排放量,达到符合国际海事组织对船舶防止空气污染的规定中的NOx章程的规范。利用废气再循环原理设计了一套柴油机废气减排系统,以降低渔船用柴油机的NOx排放量。通过CFD数值模拟的方法对某柴油机的废气再循环... 详细信息

为了降低渔船用柴油机的NOx排放量,达到符合国际海事组织对船舶防止空气污染的规定中的NOx章程的规范。利用废气再循环原理设计了一套柴油机废气减排系统,以降低渔船用柴油机的NOx排放量。通过CFD数值模拟的方法对某柴油机的废气再循环系统进行了二维流场的数值模拟,以确定合理的废气回流比例。模拟过程使用不同的EGR阀门开度进行分析,得到了EGR阀门开度与EGR率之间的比例关系,为柴油机废气再循环系统的设计提供了理论依据。

关键词：柴油机废气再循环流场数值模拟

Symmetries of the Variable Coefficient KdV Equation and Three Hierarchies of the Integrodifferential Variable Coefficient KdV Equation

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Chinese Physics Letters 1994年第12期11卷 721-723页

作者： ZHANG Jiefang HAN Ping Institute of Nonlinear Physics Zhejiang Normal UniversityJinhua 321004 Department of Physics Zhoushan Teacher’s CollegeZhoushan 316004

By using a simple method to factorize the recursion operator,the inverse recursion operator of the variable coefficient KdV cquqtion is exhibited *** new sets of symmetries of the variable coefficient KdV equation arc given in addition to the known K symmetries andτ*** from these three sets of symmetries,we obtained three hierarchies of the variable coefficient KdV integro-differential equations.

关键词： equations. operator symmetries

Statistics of Wave Crest Characteristics

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China Ocean Engineering 2005年第2期19卷 205-214页

作者：于定勇吕东峰吕华庆张寒元 College of Engineering Ocean University of China Qingdao 266071 China Marine Science and Technology School Zhejiang Ocean University Zhoushan 316004 China

The statistical distribution of wave crest characteristics such as crest length, crest height, joint crest height and length are analyzed based on numerical simulation of 3-D random waves. The effects of directional functions and wave crest defining methods on crest characteristics are also studied. The results show that wave crests are no longer uniform and continuous in directional wave field; the distribution of crest length is obviously influenced by the directional function; the statistics of crest characteristics obtained by the two different methods are almost the same.

关键词： random wave wave crest direction function numerical simulation

Solutions of multiple vector refinement equations with infinite mask

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Applied Mathematics(A Journal of Chinese Universities) 2009年第2期24卷 209-213页

作者： LI Na LIU Zhi-song Department of Mathematics Shandong Institute of Education Jinan 250013 China Information College Zhejiang Ocean University Zhoushan 316004 China

This paper is devoted to investigating the solutions of refinement equations of the form Ф（x）=∑α∈Z^s α（α）Ф（Mx-α）,x∈R^s,where the vector of functions Ф = （Ф1,… ,Фr）^T is in （L1（R^s））^r, α =（α（α））α∈Z^s is an infinitely supported sequence of r × r matrices called the refinement mask, and M is an s × s integer matrix such that lim n→∞ M^-n =0, with m = detM. Some properties about the solutions of refinement equations axe obtained.

关键词： refinement equation refinement mask multiple refinable function