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期刊论文 13

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传递阻力 1

养分消化与吸收 1

内部分子结构 1

内部取代BN 1

分子成像 1

分子营养 1

反渗透 1

同步辐射X射线 1

同步辐射应用 1

吸气式 1

吸附脱硫 1

地球内部 1

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双氧原子掺杂的氮化硼材料用于吸附脱硫研究 Article

罗静, 魏延臣, 巢艳红, 王超, 李宏平, 熊君, 华明清, 李华明, 朱文帅

《工程（英文）》 2022年 第14卷 第7期   页码 86-93 doi: 10.1016/j.eng.2020.08.030

摘要：

氧原子普遍共存于六方氮化硼（h-BN）吸附剂中。如何利用h-BN中的氧原子以强化其与吸附质之间的相互作用，从而提高材料的吸附性能，是一个亟待解决课题。本文以聚合法构建氧原子晶格内部取代和边缘羟基化修饰的双氧原子位点改性BN（BN‒2O）材料。BN‒2O的边缘羟基氧原子能够增强二苯并噻吩（DBT）与其非均匀表面的π-π作用，从而促进多分子层型吸附过程。实验结果表明，相比边缘羟基取代BN（BN‒OH）材料，BN‒2O材料对燃油中DBT的吸附容量提升了12%。密度泛函理论计算还揭示了BN‒2O晶格内部的氧原子可以通过极化吸附质的方式增强其与BN‒2O之间的偶极作用，进一步提高BN‒2O从富含芳烃的燃油中选择性吸附DBT的能力，使得其在燃油吸附脱硫领域表现出更好的应用前景

关键词： 聚合物基合成策略     内部取代BN     氧掺杂     吸附脱硫    

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Graphene-like -BN supported polyhedral NiS/NiS nanocrystals with excellent photocatalytic performance

《化学科学与工程前沿（英文）》 2021年 第15卷 第6期   页码 1537-1549 doi: 10.1007/s11705-021-2094-2

摘要： Human health is deteriorating due to the effluent containing heavy metal ions and organic dyes. Hence, photoreduction of Cr(VI) to Cr(III) and degradation of rhodamine B (RhB) using a novel photocatalyst is particularly important. In this work, h-BN/NiS2/NiS composites were prepared via a simple solvothermal method and a double Z-scheme heterojunction was constructed for efficiently removing RhB and Cr(VI). The 7 wt-% h-BN/NiS2/NiS composites were characterized via a larger specific surface area (15.12 m2·g–1), stronger light absorption capacity, excellent chemical stability, and high yield of electrons and holes. The experimental result indicated that the photoreduction efficiency of the 7 wt-% h-BN/NiS2/NiS photocatalyst achieved 98.5% for Cr(VI) after 120 min, which was about 3 times higher than that of NiS2/NiS (34%). However, the removal rate of RhB by the 7 wt-% h-BN/NiS2/NiS photocatalyst reached 80%. This is due to the double Z-scheme heterojunction formed between NiS2/NiS and h-BN, which improved the charge separation efficiency and transmission efficiency. Besides, the influence of diverse photogenerated electron and hole scavengers upon the photoreduction of Cr(VI) was studied, the results indicated that graphene-like h-BN promoted transportation of photoinduced charges on the surface of the h-BN/NiS2/NiS photocatalyst via the interfacial effects.

关键词： graphene-like h-BN     h-BN/NiS2/NiS composites     photocatalysis     Cr(VI) reduction     degradation of RhB    

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Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic

《化学科学与工程前沿（英文）》 2023年 第17卷 第3期   页码 276-287 doi: 10.1007/s11705-022-2242-3

摘要： Particle size governs the electronic and geometric structure of metal nanoparticles (NPs), shaping their catalytic performances in heterogeneous catalysis. However, precisely controlling the size of active metal NPs and thereafter their catalytic activities remain an affordable challenge in ultra-deep oxidative desulfurization (ODS) field. Herein, a series of highly-efficient VOx/boron nitride nanosheets (BNNS)@TiO2 heterostructures, therein, cetyltrimethylammonium bromide cationic surfactants serving as intercalation agent, BNNS and MXene as precursors, with various VOx NP sizes were designed and controllably constructed by a facile intercalation confinement strategy. The properties and structures of the prepared catalysts were systematically characterized by different technical methods, and their catalytic activities were investigated for aerobic ODS of dibenzothiophene (DBT). The results show that the size of VOx NPs and V5+/V4+ play decisive roles in the catalytic aerobic ODS of VOx/BNNS@TiO2 catalysts and that VOx/BNNS@TiO2-2 exhibits the highest ODS activity with 93.7% DBT conversion within 60 min under the reaction temperature of 130 °C and oxygen flow rate of 200 mL·min–1, which is due to its optimal VOx dispersion, excellent reducibility and abundant active species. Therefore, the finding here may contribute to the fundamental understanding of structure-activity in ultra-deep ODS and inspire the advancement of highly-efficient catalyst.

关键词： oxidative desulfurization     boron nitride     vanadium     MXene     intercalation confinement    

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Degradation of Azo dye direct black BN based on adsorption and microwave-induced catalytic reaction

Shanshan Ding, Wen Huang, Shaogui Yang, Danjun Mao, Julong Yuan, Yuxuan Dai, Jijie Kong, Cheng Sun, Huan He, Shiyin Li, Limin Zhang

《环境科学与工程前沿（英文）》 2018年 第12卷 第1期 doi: 10.1007/s11783-017-1003-x

摘要： The novel microwave catalyst MgFe O -SiC was synthesized via sol-gel method, to remove azo dye Direct Black BN (DB BN) through adsorption and microwave-induced catalytic reaction. Microwave-induced catalytic degradation of DB BN, including adsorption behavior and its influencing factors of DB BN on MgFe O -SiC were investigated. According to the obtained results, it indicated that the pseudo-second-order kinetics model was suitable for the adsorption of DB BN onto MgFe O -SiC. Besides, the consequence of adsorption isotherm depicted that the adsorption of DB BN was in accordance with the Langmuir isotherm, which verified that the singer layer adsorption of MgFe O -SiC was dominant than the multi-layer one. The excellent adsorption capacities of MgFe O -SiC were kept in the range of initial pH from 3 to 7. In addition, it could be concluded that the degradation rate of DB BN decreased over ten percent after the adsorption equilibrium had been attained, and the results from the result of comparative experiments manifested that the adsorption process was not conducive to the process of microwave-induced catalytic degradation. The degradation intermediates and products of DB BN were identified and determined by GC-MS and LC-MS. Furthermore, combined with the catalytic mechanism of MgFe O -SiC, the proposed degradation pathways of DB BN were the involution of microwave-induced ·OH and holes in this catalytic system the breakage of azo bond, hydroxyl substitution, hydroxyl addition, nitration reaction, deamination reaction, desorbate reaction, dehydroxy group and ring-opening reaction.

关键词： Adsorption     Microwave-induced catalytic degradation     Direct black BN     Degradation pathway    

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A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

《能源前沿（英文）》 2016年 第10卷 第1期   页码 79-87 doi: 10.1007/s11708-015-0380-8

摘要： There has been an immense endeavor to mitigate global warming in spite of which it has only been worse. This paper presents the design and implementation of a low power and eco-friendly refrigeration system using the thermoelectric effect. The conventional refrigerators make use of complex mechanisms which involves synchronous operation of various units, namely the compressor, condensers, expansion valves, evaporator, refrigerant and so on. But a thermoelectric refrigerator exploits the principle of the Peltier effect, thus avoiding the utilization of these complex components. This even helps curb the release of harmful chlorofluorocarbons (CFCs) into the atmosphere which contributes to the increase in global temperature. Moreover, the temperature can be controlled and set to required values with the help of a microcontroller. Hence, this can be used both for domestic and commercial purposes. The unit does not eject any harmful gases. Therefore, the heat expelled from the unit can be tapped for heating utilities, making the use of this device versatile in its application. Thus this proposal aims not only at reducing the air pollutants by not contributing to it but also at reducing the power consumption.

关键词： low power     eco-friendly     multipurpose     TEC-12706     Peltier effect     microcontroller (P89V51RD2BN)     temperature control    

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High specificity detection of Pb

Ruozhen YU,Zheng FANG,Wei MENG,Zhenguang YAN,Lina DU,Hong WANG,Zhengtao LIU

《环境科学与工程前沿（英文）》 2014年 第8卷 第5期   页码 729-736 doi: 10.1007/s11783-013-0611-3

摘要： Only one bifunctional metal-chelator was used to prepare immunogen and coating antigen in all of the previous researches. However, the antibody-specific recognition to the spacer arm of the bifunctional metal-chelator might lower the specificity of heavy metal ions immunoassay. Two different bifunctional metal-chelators were adopted to prepare the immunogen and coating antigen respectively in our study to avoid this problem. The conjugates of keyhole limpet hemocyanin (KLH) and -SCN-Bz-DTPA-Pb were used as immunogen, whereas the conjugates of bovine serum albumin (BSA) and -NH -Bn-DTPA-Pb were used as coating antigen. Polyclonal antibodies specific to DTPA-Pb chelates were obtained from rabbits. Indirect competitive enzyme-linked immunosorbent assay (ELISA) was adopted to detect Pb ion solutions prepared by Pb standard solution and ultrapure water. In the mixing microplate, DTPA and Pb ions formed chelates and combined with specific antibodies. After incubation, the DTPA-Pb and the antibodies complex were added into the wells of the reaction microplate. The reaction microplate was coated by the conjugates of BSA and -NH -DTPA-Pb, which competed for the specific antibodies. The result signals presented a good sigmoid curve when the Pb concentration ranges from 0.01 to 100 mg·L . The IC50 of the indirect competitive ELISA is 0.23±0.04 mg·L Pb ion. The cross-reaction with Cd , Cu , Fe , Mn , Zn , and other divalent ions were less than 5%.

关键词： p-SCN-Bz-DTPA     p-NH2-Bn-DTPA     lead ion     polyclonal antibody    

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深碳观测计划——对地球内部碳的十年探索

Craig M. Schiffries, Andrea Johnson Mangum, Jennifer L. Mays, Michelle Hoon-Starr, Robert M. Hazen

《工程（英文）》 2019年 第5卷 第3期   页码 372-378 doi: 10.1016/j.eng.2019.03.004

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高原环境下吸气式火灾探测器采样管道内部流动的研究

刘勇,张永明,邓志华,于春雨,刘申友,陈涛,袁宏永

《中国工程科学》 2007年 第9卷 第4期   页码 89-93

摘要：

高原环境下高灵敏度吸气式火灾探测器采样管道内部流动特征直接决定了该火灾探测器的有效探测 面积。分析了高灵敏度吸气式火灾探测器采样管道在单采样孔条件下内部流动特征；从理论上推导出在高原环 境下和常压下这种采样管道在单采样孔条件下管道内部流动速度和采样孔流动速度的关系式，给出了管道内部 流动速度相同的情况下高原环境下采样管道折损长度

关键词： 高原环境     吸气式     管道流动     火灾探测    

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聚酰胺反渗透膜中水传递阻力的分子模拟——界面阻力和内部阻力 Article

宋阳, 魏明杰, 徐放, 汪勇

《工程（英文）》 2020年 第6卷 第5期   页码 577-584 doi: 10.1016/j.eng.2020.03.008

摘要： 本文通过分子模拟来计算总传递阻力，并将其分成两部分——内部阻力和界面阻力。内部阻力取决于PA层的厚度，而界面阻力则不然。此外，界面阻力和内部阻力均取决于PA层的化学性质。我们的模拟显示，减少PA层中剩余羧基的数量会导致内部阻力降低，因此，可以在不牺牲离子截留的情况下改善水的渗透性，这与实验结果高度吻合。

关键词： 传递阻力     反渗透     非平衡分子动力学     水分子亲水性     建模    

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高压多晶X射线衍射方法的发展及其在地球深部研究中的应用 Review

张莉, 苑洪胜, 孟悦, 毛河光

《工程（英文）》 2019年 第5卷 第3期   页码 441-447 doi: 10.1016/j.eng.2019.02.004

摘要：

下地幔占地球体积一半以上。在高温高压下对下地幔真实组分所开展的矿物学和岩石学实验是了解深部地幔演化过程的必要途径。激光加热的金刚石对顶压砧（laser-heated diamond anvil cell, LHDAC）是开展这类高温高压实验最常用的工具，实验产物通常包括从上百纳米到数微米尺寸不一的大量晶粒所组成的多相集合体。这些下地幔相的晶体结构往往不能在卸压后保存下来，因此必须对它们进行原位表征。相对于同步辐射光源设备中可用的聚焦X射线光斑尺寸（3~5 μm），晶粒尺寸要小一个量级，所得到的X射线衍射（X-ray diffraction, XRD）图谱通常显示为衍射斑点和衍射环的混合。由于多相衍射峰重叠严重，粉晶X射线衍射法无法对新相和弱相进行鉴定，因此采用传统XRD技术测定高温高压下多相混合物非常困难。我们最近在高压研究中所发展的同步辐射多晶X射线衍射法可以通过测定多相组合中成千上百个晶粒各自的晶面取向，使多相体系中单晶的指标化成为可能。一旦完成指标化，多晶混合物中的每一个晶粒都可以看作是单晶。因此，我们可以同时确定多相体系中新相和弱相的晶体结构。随着这一新方法的发展，我们开辟了深下地幔高温高压条件下的结晶学新领域。本文阐述了多相体系研究中的关键技术挑战，并通过高压多相X射线衍射法的成功应用实例，论证了该方法的独特能力。

关键词： 高压     同步辐射X射线     多晶     金刚石对顶压砧     矿物学     岩石学     地球内部    

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开放通道固态硬盘的设计与应用研究综述 Review Article

陈军超1,2,3,张广艳1,3,魏钧宇1,3

《信息与电子工程前沿（英文）》 2023年 第24卷 第5期   页码 637-658 doi: 10.1631/FITEE.2200317

摘要： 与传统的固态硬盘（SSDs）相比，开放通道固态硬盘（OCSSDs）向外暴露了它们的内部物理布局，并提供了一个基于主机端的闪存转换层（FTL），使得它允许主机端软件根据具体场景和需求控制其内部操作，如垃圾回收本文对近年来基于OCSSDs的研究工作进行了全面的调研，总结了它们如何利用OCSSDs的特性来实现高吞吐量、低访问延迟、长寿命、强性能隔离和高资源利用率等目标，并从接口定制、FTL协同设计、内部并行性挖掘

关键词： 领域专用存储；闪存转换层；垃圾回收；内部并行性；开放通道固态硬盘（OCSSDs）    

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饲料的分子结构与动物营养物质利用率和有效性的关系——一种新方法

俞培强, Luciana L. Prates

《工程（英文）》 2017年 第3卷 第5期   页码 726-730 doi: 10.1016/J.ENG.2017.03.007

摘要：

新的研究思路、研究方法和生物分析技术的创造和发展对动物科学（包括饲料和营养科学）的进步是必不可少的。本文介绍了以同步加速器为基础的先进生物分析技术作为一项崭新的研究工具，在研究由多种处理（如基因修饰、基因沉默、饲料的热加工处理、生物燃料加工等）诱导的饲料分子结构变化与动物消化吸收饲料营养物质的关系方面的潜在应用。以同步辐射为基础的先进技术[如同步辐射红外显微光谱技术（synchrotron radiation infrared microspectroscopy，SR-IMS）和同步辐射X射线技术]作为一种快速、无损的生物分析技术被开发利用。与传统的湿化学法不同，同步辐射技术不会破坏饲料内在的分子结构。尖端和先进的同步加速器光源（是日光的上百万倍）能够以超高分辨率在细胞和分子水平上探测生物组织的内在结构。总的来说，最近开发的基于同步辐射的生物分析技术结合常用的研究技术将带来动物饲料和营养研究的巨大进步。

关键词： 内部分子结构     同步辐射应用     分子营养     饲料科学技术     分子成像     养分消化与吸收    

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可生物降解塑料取代传统塑料——对碳排放的影响

Guanyi Chen,Jianyuan Li,Yunan Sun,Zhi Wang,Gary A. Leeke,Christian Moretti,Zhanjun Cheng,Yuan Wang,Ning Li,Lan Mu,Jinyu Li,Junyu Tao,Beibei Yan,Li´an Hou

《工程（英文）》 2024年 第32卷 第1期   页码 153-162 doi: 10.1016/j.eng.2023.10.002

摘要：

In recent years, a great deal of attention has been focused on the environmental impact of plastics, including the carbon emissions related to plastics, which has promoted the application of biodegradable plastics. Countries worldwide have shown high interest in replacing traditional plastics with biodegradable plastics. However, no systematic comparison has been conducted on the carbon emissions of biodegradable versus traditional plastic products. This study evaluates the carbon emissions of traditional and biodegradable plastic products (BPPs) over four stages and briefly discusses environmental and economic perspectives. Four scenarios—namely, the traditional method, chemical recycling, industrial composting, and anaerobic digestion—are considered for the disposal of waste biodegradable plastic product (WBBPs). The analysis takes China as a case study. The results show that the carbon emissions of 1000 traditional plastic products (plastic bags, lunch boxes, cups, etc.) were 52.09–150.36 carbon emissions equivalent of per kg (kg CO2eq), with the stage of plastic production contributing 50.71%–50.77%. In comparison, 1000 similar BPPs topped out at 21.06–56.86 kg CO2eq, approximately 13.53%–62.19% lower than traditional plastic products. The difference was mainly at the stages of plastic production and waste disposal, and the BPPs showed significant carbon reduction potential at the raw material acquisition stage. Waste disposal plays an important role in environmental impact, and composting and anaerobic digestion are considered to be preferable disposal methods for WBBPs. However, the high cost of biodegradable plastics is a challenge for their widespread use. This study has important reference significance for the sustainable development of the biodegradable plastics industry.

关键词： Carbon emissions     Biodegradable plastics     Different disposal scenarios     Daily life consumption     Environmental and economic discussion    

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标题 作者 时间 类型 操作

双氧原子掺杂的氮化硼材料用于吸附脱硫研究

罗静, 魏延臣, 巢艳红, 王超, 李宏平, 熊君, 华明清, 李华明, 朱文帅

期刊论文

Graphene-like -BN supported polyhedral NiS/NiS nanocrystals with excellent photocatalytic performance

期刊论文

Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic

期刊论文

Degradation of Azo dye direct black BN based on adsorption and microwave-induced catalytic reaction

Shanshan Ding, Wen Huang, Shaogui Yang, Danjun Mao, Julong Yuan, Yuxuan Dai, Jijie Kong, Cheng Sun, Huan He, Shiyin Li, Limin Zhang

期刊论文

A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

期刊论文

High specificity detection of Pb

Ruozhen YU,Zheng FANG,Wei MENG,Zhenguang YAN,Lina DU,Hong WANG,Zhengtao LIU

期刊论文

深碳观测计划——对地球内部碳的十年探索

Craig M. Schiffries, Andrea Johnson Mangum, Jennifer L. Mays, Michelle Hoon-Starr, Robert M. Hazen

期刊论文

高原环境下吸气式火灾探测器采样管道内部流动的研究

刘勇,张永明,邓志华,于春雨,刘申友,陈涛,袁宏永

期刊论文

聚酰胺反渗透膜中水传递阻力的分子模拟——界面阻力和内部阻力

宋阳, 魏明杰, 徐放, 汪勇

期刊论文

高压多晶X射线衍射方法的发展及其在地球深部研究中的应用

张莉, 苑洪胜, 孟悦, 毛河光

期刊论文

开放通道固态硬盘的设计与应用研究综述

陈军超1,2,3,张广艳1,3,魏钧宇1,3

期刊论文

饲料的分子结构与动物营养物质利用率和有效性的关系——一种新方法

俞培强, Luciana L. Prates

期刊论文

可生物降解塑料取代传统塑料——对碳排放的影响

Guanyi Chen,Jianyuan Li,Yunan Sun,Zhi Wang,Gary A. Leeke,Christian Moretti,Zhanjun Cheng,Yuan Wang,Ning Li,Lan Mu,Jinyu Li,Junyu Tao,Beibei Yan,Li´an Hou

期刊论文