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Influence of polyacrylamide (PAM) on the soil and water conservation effects of white clover (Trifolium repens L)

Chemical Engineering Transactions 2015年 46卷 787-792页

作者： Su, Ying Liu, Debin Lin, Naixi Zhen, Shucong Jiang, Ruiyu College of Civil Engineering Yancheng Institute of Technology No.1 Xiwang Middle Road Yancheng224051 China Institute of Water Science in Coastal Regions of Jiangsu Province Dongtai224200 China College of Environment Hohai University No. 1 Xikang Road Nanjing210098 China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng224051 China

ISBN: (纸本)9788895608372

In order to explore the technology of soil and water conservation in coastal saline soil area, improve the prevention and control of soil erosion, white clover (Trifolium repens L) combined with different dosage of polyacrylamide (PAM) was applied to the soil and water conservation in plot tests, and the influence of PAM on the soil and water conservation effects of white clover (Trifolium repens L) was examined. The results showed that compared to the only planting white clover, the addition of 1-5 g/m2 PAM reduced soil erosion by 516.0-1326.3 t/(km2·a), which were 29.5-75.8% of the yearly soil erosion;inhibited soil evapotranspiration by 24.3-43.4%;improved the total rain water interception by 18.0-44.1 mm;and decreased the cumulative percentage of water loss (CP) by 0.4-4.7% in the 30th day after the plants harvest. From the aspects of reduction efficiency of erosion modulus and reduction efficiency of evapotranspiration, the optimistic dosage of PAM was 1 g/m2. The synergy of PAM mainly focus on the early stage of white clover. In addition, PAM may still slightly prevent the water loss after the plants harvest. Copyright © 2015, AIDIC Servizi S.r.l.

关键词： Erosion

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Studying the loading impact of silane grafted Fe ₂ O ₃ nanoparticles on mechanical characteristics of epoxy matrix

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Egyptian Journal of Petroleum 2019年第1期28卷 27-34页

作者： Naguib, Hamdy M. Ahmed, Mona A. Abo-Shanab, Z.L. Department of Petroleum Applications Egyptian Petroleum Research Institute (EPRI) Nasr City Cairo 11727 Egypt Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng 224051 Jiangsu Province China

This study investigates the loading impact of iron oxide (IO) and silane treated iron oxide (SIO) nanoparticles on thermal, mechanical and morphological behavior of epoxy matrix. Both IO and SIO nanoparticles were loaded with 1, 3 and 5 wt% from the total weight of epoxy matrix. The morphology of IO, and SIO epoxy nanocomposites are investigated by TEM. FTIR spectra are successfully able to confirm the good chemical interaction between SIO nanoparticles and epoxy matrix. Thermal resistance of epoxy IO, and SIO nanocomposites is studied by TGA. The mechanical properties of prepared nanocomposites including storage modulus, tan δ, stress-strain curves and toughness are studied using DMA at temperature range 25 °C–100 °C. The results approved that loading 3 wt% of SIO nanoparticles improved the morphological, thermal resistance and mechanical characteristics of epoxy matrix. © 2019 Egyptian Petroleum Research Institute

关键词： Epoxy nanocomposites Iron oxide nanoparicles Modulus Thermal stability Toughness

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Recent advances in designing ZnIn_(2)S_(4)-based heterostructured photocatalysts for hydrogen evolution

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Journal of Materials Science & technology 2023年第8期139卷 167-188页

作者： Chao Liu Qinfang Zhang Zhigang Zou School of Materials Science and Engineering Yancheng Institute of TechnologyYancheng 224051China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of TechnologyYancheng 224051China Eco-Materials and Renewable Energy Research Centre(ERERC) School of PhysicsNanjing UniversityNanjing 210093China

Water and solar energy are inexhaustible on Earth,and thus hydrogen evolution through photocatalytic water splitting taking sunlight as the input energy is an ideal green energy generation *** a typical visible-light-responsive photocatalyst,ZnIn_(2)S_(4)attracted worldwide research attention because of its many advantages for photocatalytic hydrogen evolution(PHE),such as layered structure,simple syn-theses,structural stability,environmental friendliness,and suitable electronic band *** recent years,constructing ZnIn_(2)S_(4)-based heterostructured photocatalysts has become a research focus for their significantly improved spatial charge carrier separation efficiency and PHE *** to the charge carrier transfer/separation mechanisms,heterostructured ZnIn_(2)S_(4)-based photocatalysts are divided into five categories,conventional heterojunctions(type-I and type-II),p-n heterojunction,Z-scheme het-erojunction,S-scheme(or Step-scheme)heterojunction,and co-catalyst deposition based heterojunction *** article reviews the recent advances in ZnIn_(2)S_(4)-based heterostructured photocatalysts for ***,the central part of this review introduced various ZnIn_(2)S_(4)-based heterojunctions and their PHE ***,apart from common half-reaction of water-splitting,we expressly introduced overall water splitting,dual-functional and photothermal effect-assisted PHE ***,we briefly presented some identification methods for confirming heterojunction ***,the current states,challenges and perspectives of ZnIn_(2)S_(4)-based heterostructured photocatalysts for PHE are also *** review aims to explore the advantages of diverse ZnIn_(2)S_(4)-based heterostructures,and can provide an insight into designing high-efficiency heterostructured photocatalysts for PHE application.

关键词： Photocatalysis Photocatalytic hydrogen evolution ZnIn_(2)S_(4) Heterojunction Charge transfer mechanism S-scheme heterojunction

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Alloy as advanced catalysts for electrocatalysis:From materials design to applications

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Chinese Chemical Letters 2024年第6期35卷 104-122页

作者： Pingfan Zhang Shihuan Hong Ning Song Zhonghui Han Fei Ge Gang Dai Hongjun Dong Chunmei Li Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province Institute of Green Chemistry and Chemical TechnologySchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China Daqo Group Co.Ltd. Zhenjiang 212221China Key Laboratory of Groundwater Resources and Environment Ministry of EducationJilin Provincial Key Laboratory of Water Resource and EnvironmentCollege of New Energy and EnvironmentJilin UniversityChangchun 130021China

With the deep integration of electrochemical research with energy,environment,catalysis,and other fields,more and more new electrochemical catalytic reactions have entered our research *** catalysts have recently emerged as a new type of nanomaterial due to the rapid development of kinetic controlled synthesis *** materials offer several advantages over monometallic catalysts,including larger element combinations,complex geometries,bifunctional sites,and reduced use of precious *** paper provides a review of alloy electrocatalysts that are designed and prepared specifically for electrocatalytic *** use of alloy materials in electrocatalyst design is also discussed,highlighting their widespread application in this ***,various synthesis methods and synthesis mechanisms are systematically *** that,by correlating the properties of materials with the structure,relevant strategies toward advanced alloy electrocatalysts including composition regulation,size,morphology,surface engineering,defect engineering,interface engineering and strain engineering are *** addition,the important electrocatalytic applications and mechanisms of alloy electrocatalysts are described and ***,the current challenges and prospects regarding the development of alloy nanomaterials are *** review serves as a springboard from a fundamental understanding of alloy structural dynamics to design and various applications of electrocatalysts,particularly in energy and environmental sustainability.

关键词： Alloy Nanomaterial Electrocatalyst Materials design Electrocatalysis

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In vitro cytotoxic studies of ultrafine TiO2/graphene oxide sheet nanocomposites in human alveolar epithelial cells

In vitro cytotoxic studies of ultrafine TiO2/graphene oxide ...

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2014 International Conference on Green Materials and environmental Engineering, GMEE 2014

作者： Gao, Jing Yuan, Xue-Shun Wang, Yu Cao, Lin Dong, Peng-Yu Cao, Bao-Cheng School of Stomatology Lanzhou University Lanzhou China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng China

ISBN: (纸本)9783038353201

The novel TiO2/graphene sheet (TiO2/GSs) nanocomposites were synthesized using graphene oxide sheets and TiCl3. All target composites were characterized by transmission electron microscopy (TEM), X-ray electron diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectra (EDX), and the surface areas were tested with the Brunauer-Emmett-Teller (BET) method. We studied the cytotoxicity of TiO2/GSs nanoparticles on A549 cells by examining the influence of TiO2/GSs on cell morphology and viability by methyl thiazolyl tetrazolium (MTT) assay. We also determined membrane integrity and apoptosis of A549 cells after different doses of TiO2/GSs exposure by LDH assay and flow cytometry. Assay of A549 cell viability showed regular reductions with a time- and dose-dependent tendency after exposure to pure TiO2, TiO2/4.2wt% GSs and TiO2/6wt% GSs for 24 hrs or 48 hrs. The LDH released and cellular apoptosis also had a dose-dependent effect, which was associated with the surface area of TiO2/4.2wt% GSs. Our results provide essential knowledge of the acceptable biocompatibility of TiO2/GSs nanocomposites, and only when cells were exposed at a high concentration (≥50 μg/mL), and for a prolonged period of time did TiO2/GSs nanoparticles exhibit minimal cytotoxicity against A549 cells. © (2014) Trans Tech Publications, Switzerland.

关键词： Cell death

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MOF-derived porous Co 3 O 4 nanosheets array assembled on SnO 2 nanofibers for humidity-resistant high efficiency acetone detection

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Chinese Chemical Letters 2025年

作者： Jinwu Hu Feng Wang Jiejie Yu Zijun Hong Wenhui Zhang Hui-Jun Li Zhuangchai Lai Ding Wang Yonghui Deng Guisheng Li School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology Yancheng 224051 China Department of Applied Physics The Hong Kong Polytechnic University Hong Kong 999077 China Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials iCHEM Fudan University Shanghai 200433 China

Semiconducting metal oxide based gas sensors exhibit great promise for convenient detection of acetone, a biomarker gas in the exhaled breath of type-I diabetes patients. However, the detection usually suffers the interference from exhaled moisture. To overcome this challenge, in this work, a novel hierarchical heterojunction structure consisting of SnO 2 nanofiber core and Co 3 O 4 nanosheet shell (denoted as SnO 2 @Co 3 O 4 core-shell composite) was proposed for fabricating acetone sensor with excellent humidity resistance. Compared with SnO 2 nanofibers and Co 3 O 4 nanosheets, the SnO 2 @Co 3 O 4 showed the highest sensing response, with a response value (R g /R a ) of 11.27 to 50 ppm acetone at 110 °C. In addition, the hierarchical SnO 2 @Co 3 O 4 core-shell structure shows fast response/recovery speed (19/43 s), lower detection limit (125 ppb), excellent selectivity and stability in a humidity environment (relative humidity 30%-90%) with a relative change of only 3%. The enhanced gas sensing performance toward acetone is attributed to the synergistic effect between the two components, the unique core-shell hierarchical structure and the rich oxygen vacancy density. Density functional theory calculations reveal that the SnO 2 @Co 3 O 4 has higher acetone adsorption energy than the two components. In addition, a novel SnO 2 @Co 3 O 4 gas sensing module and smart portable sensor device enable efficient real-time monitoring of acetone concentrations on a smartphone via Bluetooth communication.

关键词： Hierarchical heterojunction SnO 2 nanofiber Co 3 O 4 nanosheet Acetone detection Metal-organic framework

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Surpassing electrocatalytic limit of earth-abundant Fe^(4+)embedded in N-doped graphene for(photo)electrocatalytic water oxidation

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Journal of Energy Chemistry 2021年第3期30卷 274-281页

作者： Wenjia Xue Feng Cheng Menglu Li Wenjian Hu Congping Wu Bing Wang Kuowei Liao ZhenTao Yu Yingfang Yao Wenjun Luo Zhigang Zou Eco-materials and Renewable Energy Research Center(ERERC) College of Engineering and Applied SciencesNanjing UniversityNanjing 210093JiangsuChina Key Laboratory for Advanced Technology in Environment Protection of Jiangsu Province Vancheng Institute of TechnologyYancheng 224051JiangsuChina Jiangsu Key Laboratory for Nano Technology National Laboratory of Solid State MicrostructvresDepartment of PhysicsNanjing UniversityNanjing 210093JiangsuChina Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093JiangsuChina Kunshan Innovation Institute of Nanjing University Suzhou 215347JiangsuChina School of Science and Engineering The Chinese University of Hong KongShenzhen2001 Longxiang BlvdLonggang DistrictShenzhen 518172GuangdongChina Macao Institute of Systems Engineering Macao University of Science and TechnologyMacao 999078China Huazhong University of Science and Technology Wuhan National Laboratory for OptoelectronicsWuhan 430074HubeiChina

Developing highly active,cost-effective,and environmental friendly oxygen evolution reaction(OER)electrocatalysts facilitates various(photo)electrochemical *** this work,Fe3N nanoparticles encapsulated into N-doped graphene nanoshells(Fe_(3)N@NG)as OER electrocatalysts in alkaline media were *** the experimental and theoretical comparison between Fe_(3) N@NG and Fe_(3)N/NG,specifically including in situ Mossbauer analyses,demonstrated that the NG nanoshells improved interfacial electron transfer process from Fe_(3)N to NG to form high-valence Fe^(4+)ions(Fe^(4+)@NG),thus modifying electronic properties of the outer NG shells and subsequently electron transfer from oxygen intermediate to NG nanoshells for OER catalytic ***,the NG nanoshells also protected Fe-based cores from forming OER inactive and insulated Fe_(2)O_(3),leading to high OER *** a result,the as-formed Fe^(4+)@NG shows one of the highest electrocatalytic efficiency among reported Fe-based OER electrocatalysts,which can as well highly improve the photoelectrochemical water oxidation when used as the cocatalysts for the Fe_(2)O_(3) nanoarray photoanode.

关键词： Fe(Ⅳ) Photoelectrochemistry Water oxidation Oxygen evolution reaction

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The most probable mechanism function of PVC thermal decomposition

The most probable mechanism function of PVC thermal decompos...

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4th International Conference on Materials Science and Information technology, MSIT 2014

作者： Xu, Ning Li, Guang Cheng Guan, Rong Feng Yancheng Institute of Technology Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Yancheng 224051 Jiangsu Province China School of Chemical Engineering Anhui University of Science and Technology Huainan 232001 Anhui Province China

ISBN: (纸本)9783038351733

The most probable mechanism function of non-isothermal kinetics about polyvinyl chloride thermal decomposition process was studied by the differential method (A-B-S)-integral method (C-R). The results show that the most probable mechanism function accorded with the mechanism function A1.5 when the heating rate of was 5 °C/min and the decomposition rate was 0.01-0.10. © (2014) Trans Tech Publications, Switzerland.

关键词： Polyvinyl chlorides

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Synthesis of Acrylonitriles via Mild Base Promoted Tandem Nucleophilic Substitution-Isomerization ofα-Cyanohydrin Methanesulfonates

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Chinese Journal of Chemistry 2021年第4期39卷 913-917页

作者： Shiwen Liu Lingling Meng Xiaojun Zeng Gerald B.Hammond Bo Xu College of Textiles and Clothing&Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of TechnologyYanchengJiangsu 224003China Key Laboratory of Science and Technology of Eco-Textiles Ministry of EducationCollege of ChemistryChemical Engineering and BiotechnologyDonghuo UniversityShanghai 201620China Department of Chemistry University of LouisvilleLouisvilleKentucky 40292United States

Main observation and conclusion We have developed an efficient synthesis of acrylonitriles via mild base promoted tandem nucleophilic substitution-isomerization ofα-cyanohydrin methanesulfonates with alkenylboronic *** transition metal-free protocol works under simple and mild conditions and offers good chemical yields for a wide range of substrates and demonstrates good functional group tolerance.

关键词： Acrylonitriles Nucleophilic substitution Isomerization α-Cyanohydrin methanesulfonates Alkenyl boronic acids

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Application of Modified Attapulgite Clay as the Adsorbent in Gasoline Desulfurization

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China Petroleum Processing & Petrochemical technology 2014年第3期16卷 63-68页

作者： Xi Xinguo Zhang Jiling Jiang Ruiyu Xu Qi School of Materials Engineering Yancheng Institute of Technology East-China Design Branch China Petroleum Engineering Construction Company Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of Technology School of Chemical and Biological Engineering Yancheng Institute of Technology

Attapulgite clay is a kind of special silicate mineral with high adsorption capacity thanks to its loose structure and porous surface. In this paper, the attapulgite clay was treated effectively with acid under microwave thermal activation and ultrasonic vibration, respectively, and characterized by XRD, N2 adsorption, FT-IR and SEM. The desulfurization performance of the modified attapulgite clay was then evaluated by using simulated gasoline as the feed. The test results showed that the thiophene removal rate increased with an increasing dosage of hydrochloric acid during microwave modification of attapulgite clay. When the concentration of hydrochloric acid reached 15%, the increase of desulfurization rate became slower, and the desulfurization rate was about 69%.

关键词： attapulgite clay modification adsorption desulfurization

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