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Tuning interfacial charge transfer for efficient visible-light-driven photodegradation and simultaneous H_(2)evolution

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Journal of Materials science & technology 2024年第1期168卷 35-49页

作者： Zhiyang Li Yaogang Chen Yinghe Zhang Wei Ai Qian Lei Tingjun Yao Dan Zhong Wenjie Liu Wenbiao Jin Lei Yang State Key Laboratory of Urban Water Resource and Environment Shenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen 518055China Key Laboratory of Northwest Water Resources Environment and EcologyMinistry of EducationSchool of Environmental and Municipal EngineeringXi’an University of Architecture and TechnologyXi’an 710055China CNAS Accredited Test Center Guangdong Engineering Technology Research Center of Air PurificationHealthlead Co.Ltd.Shenzhen 518055China School of Science Harbin Institute of Technology ShenzhenShenzhen 518055China

The edge-graphitized carbon nitride(C_(3)N_(4)-C g)was prepared by secondary pyrolysis to construct ZnO/C_(3)N_(4)-C g(ZCN)type-Ⅱheterojunction photocatalyst via a facile sonication dispersion method,which achieved∼7.04-fold and∼18.3-fold enhanced visible-light-driven photocatalytic performance for refrac-tory micropollutant removal and simultaneous hydrogen(H_(2))evolution respectively compared to con-ventional ZnO/g-C_(3)N_(4)Step-scheme *** apparent quantum efficiency of the ZCN_(0.4)het-erojunction reaches 0.92%(λ=420 nm).Such excellent performance stems from that the edge-graphene moieties stitched onto the interface of heterojunction extend light absorption to the full visible spec-trum,meanwhile,the built-in electric field generated during Fermi level alignment accompanying fa-vorable band-bending structure provides an effective pathway for the rapid migration of photoinduced electrons via the edge graphene channel to improve interfacial charge separation ***,the midgap states introduced in ZCN heterojunction could temporarily retain photoexcited electrons to effectively inhibit the in situ carrier recombination for improved photocatalytic H_(2)***,ZCN/peroxymonosulfate system exhibited excellent anti-interference performance against complex water bodies under visible illumination due to the synergistic effect between the co-existing anions and organic ***,the eco-friendly nature of the ZCN/peroxymonosulfate system showed no biotoxicity of reaction filtrate on cell proliferation after treatment,which avoided secondary ***-ering the outstanding performance in photocatalysis,the ZCN system exhibits broad potential for practical applications in water pollution control and green energy production.

关键词： ZnO C_(3)N_(4)-C g Heterojunction Photodegradation Hydrogen evolution

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Tuning the membrane rejection behavior by surface wettability engineering for an effective water-in-oil emulsion separation

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Chinese Chemical Letters 2024年第6期35卷 480-485页

作者： Yan Zou Yin-Shuang Hu Deng-Hui Tian Hong Wu Xiaoshu Lv Guangming Jiang Yu-Xi Huang Engineering Research Center for Waste Oil Recovery Technology and Equipment Ministry of EducationChongqing Technology and Business UniversityChongqing 400067China School of Environmental Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology(Sun Yat-sen University) Guangzhou 510275China

Membrane-based separation is a promising technology to eliminate water impurities from the oil ***,it remains a great challenge to separate water from highly emulsified viscous oil owing to the high stability of the water droplets in *** we report a surface wettability engineering on an alumina ceramic membrane to achieve an efficient separation of a water-in-oil(W/O)*** with different carbon chain lengths and fluorinated status were introduced to endow the alumina membrane with different surface *** all the modified membranes exhibited excellent separation of the W/O without Span 80(surfactant),the one with amphiphobic wettability and lowest surface energy failed to separate the Span 80 stabilized W/*** presence of Span 80 reduced the interfacial tension of water droplets,making them easier to deform and penetrate the modified membrane with the lowest surface *** reveals that engineering proper surface wettability is the key to separating the oil and water ***,the modified membranes maintained decent separation performance and stability under long-term run separation of the emulsified W/O.

关键词： Water-in-oil emulsion Ceramic membrane Membrane separation Surface wettability

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Ultralarge layer spacing and superior structural stability of V_(2)O_(5)as high-performance cathode for aqueous zinc-ion battery

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Nano Research 2023年第7期16卷 9461-9470页

作者： Anni Liu Feng Wu Yixin Zhang Ying Jiang Chen Xie Keqing Yang Jiahui Zhou Man Xie Beijing Key Laboratory of Environmental Science and Engineering School of Material Science&EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

Aqueous zinc(Zn)-ion batteries(AZIBs)present safe and environmentally friendly features thereby emerging as an attractive energy storage *** V_(2)O_(5)-based cathodes are promising because of their high theoretical capacity and energy ***,insufficient interlayer distance,easy dissolution and structural collapse due to irreversible crystalline phase transition limit the development of V_(2)O_(5)cathodes in ***,doubly modified V_(2)O_(5)-based cathode which was in-situ intercalated by polyaniline(PANI)and composited with MXene(Ti_(3)C_(2)T_(x))(denoted PVM)were synthesized by one-step method for the first *** in situ intercalation of PANI provides a channel for the rapid diffusion of Zn2+and the heterogeneous structures effectively promote charge transfer and enable structural integrity of cathode during ***,the conductivity of PVM electrode is greatly ***,the PVM electrode shows a superior rate performance of 82 mAh·g^(-1)after 2000 cycles at 10 A·g^(-1).And it shows high pseudocapacitance behavior(80.23%capacitor contribution ratio at 0.1 mV·s^(-1)).A novel method of intercalation composite modification for the cathode is proposed,which provides fundamental guidance for the development of high-performance cathodes for AZIBs.

关键词： in situ intercalation heterostructure organic/inorganic cathode aqueous zinc-ion battery

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Exploring the effects of mask wearing on outdoor thermal comfort at different walking speeds—A thermal manikin-based experiment

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Building Simulation 2024年第9期17卷 1601-1613页

作者： Xiling Lu Shengkai Zhao Yongchao Zhai Jianlin Liu College of Environmental Science and Engineering Donghua UniversityShanghai201620China State Key Laboratory of Green Building Xi’an University of Architecture and TechnologyXi’anShaanxi710055China College of Architecture Xi’an University of Architecture and TechnologyXi’anShaanxi710055China

Face masks’wearing for a long duration brings thermal discomfort,especially in hot climate *** face masks’thermal insulation and its effect on outdoor thermal comfort have been rarely *** this study,five types of face masks and their thermal insulations have been tested by using a thermal manikin in the climate *** results are assessed by using physiological equivalent temperature(PET)and standard effective temperature(SET^(*))for thermal comfort with masks at three walking speeds both in summer and *** differences in thermal insulation are observed among the different masks,the values of PET and SET^(*)rise with increasing mask thermal insulation,and they are generally higher in summer than in ***,the variation of SET*is more obvious than PET with same masks at different walking *** the differences of SET^(*)with and without masks appear to rise significantly for fast *** further indicate that the individuals’physical discomfort caused by wearing masks cannot simply be assumed as an additional effect of the clothing thermal *** findings enrich the clothing thermal insulation database,explore the differences in thermal indices if the face mask is used,and provide advice on heat mitigation with masks outdoors.

关键词： outdoor thermal comfort face mask clothing insulation thermal manikin metabolic rate

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Noble-Metal-Free Oxygen Evolution Reaction Electrocatalysts Working at High Current Densities over 1000 mA cm^(-2):From Fundamental Understanding to Design Principles

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Energy & environmental Materials 2023年第5期6卷 43-59页

作者： Xian Zhang Mengtian Jin Feifei Jia Jiaqi Huang Abbas Amini Shaoxian Song Hao Yi Chun Cheng School of Resources and Environmental Engineering Wuhan University of TechnologyWuhan 430070China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Center for Infrastructure Engineering Western Sydney UniversityKingswood NSW 2751Australia Guangdong Provincial Key Laboratory of Energy Materials for Electric Power Southern University of Science and TechnologyShenzhen 518055China

Alkaline water electrolysis provides a promising route for"green hydrogen"generation,where anodic oxygen evolution reaction(OER)plays a crucial role in coupling with cathodic hydrogen evolution *** date,the development of highly active and durable OER catalysts based on earth-abundant elements has drawn wide attention;nevertheless,their performance under high current densities(HCDs≥1000 mA cm^(-2))has been less *** situation has seriously impeded large-scale electrolysis *** this review,in order to provide a guideline for designing high-performance OER electrocatalysts,the effects of HCD on catalytic performance involving electron transfer,mass transfer,and physical/chemical stability are ***,the design principles were pointed out for obtaining efficient and robust OER electrocatalysts in light of recent progress of OER electrocatalysts working above 1000 mA cm^(-2).These include the aspects of developing self-supported catalytic electrodes,enhancing intrinsic activity,enhancing the catalyst-support interaction,engineering surface wettability,and introducing protective ***,summaries and outlooks in achieving OER at industrially relevant HCDs are proposed.

关键词： alkaline water splitting high current density long-term stability noble-metal-free electrocatalysts oxygen evolution reaction

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Differential effects of petroleum hydrocarbons on the growing development and physiological characteristics of Ulva species

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environmental science and Pollution Research 2024年第40期31卷 53291-53303页

作者： Liu, Qing Cui, Ruifei Du, Yuxin Shen, Junjie Jin, Cuili Zhou, Xiaojian Marine Science and Technology Institute College of Environmental Science and Engineering Yangzhou University Yangzhou225127 China Jiangsu Key Laboratory of Marine Bioresources and Environment Jiangsu Ocean University Lianyungang222005 China

To compare the different effects of petroleum hydrocarbons on intertidal Ulva macroalgae, three dominant Ulva species (U. prolifera, U. linza, and U. lactuca) were exposed to two water-accommodated fractions (WAFs) of 0# diesel oil and crude oil at three concentration levels. The results indicated that two WAFs had significant concentration effects on the physiological characteristics of Ulva, the toxicity of 0# diesel oil was greater than crude oil, and crude oil had hormesis effect. Exposure of high WAFs concentrations, the growth, pigment, carbohydrate, and protein contents of Ulva were inhibited, while the antioxidant system was activated. In addition, the integrated biomarker response (IBR) indicated that U. prolifera had higher resistance to WAFs than U. linza and U. lactuca. Considering that U. prolifera is the main species of green tide in the Yellow Sea (YS) of China, the comparative effects of WAFs on different development stages of U. prolifera were also explored. The results showed that spore was the most sensitive to WAFs, while adult thalli was the most tolerant. The increased resistance of U. prolifera thalli and the hormesis effect triggered by crude oil may influence the outbreak scale of green tides. This study provides a new perspective for understanding the formation of green tides in the YS. Graphical abstract: (Figure presented.) © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Oil field development

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Dimethylammonium cation stabilizes all-inorganic perovskite solar cells

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Journal of Semiconductors 2023年第3期44卷 4-8页

作者： Zuolin Zhang Mengjia Li Jie Sun Cong Chen Jiangzhao Chen Liming Ding State Key Laboratory of Reliability and Intelligence of Electrical Equipment School of Materials Science and EngineeringHebei University of TechnologyTianjin 300401China Key Laboratory of Optoelectronic Technology&Systems(MoE) College of Optoelectronic EngineeringChongqing UniversityChongqing 400044China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China Macao Institute of Materials Science and Engineering(MIMSE) Macao University of Science and TechnologyMacao 999078China

Facing the poor environmental stability of traditional methylammonium or formamidinium-based lead halide per-ovskites,scientists turn their attention to inorganic lead hal-ide perovskites(ILHPs)with narrow bandgaps,excellent thermal stability and reduced ion migration compared to their organic/inorganic counterparts[1−4].Up to now,the PCEs for ILHP solar cells exceed 21%[5].Especially,the preferred black ILHP(***3)with the smallest bandgap of~1.7 eV and single-halide composition for avoiding phase separation is crucial for high-performance single-junction solar cells and can be applied in tandem devices as the top cells[6,7].However,small Cs+(167 pm)in CsPbI3 with a tolerance factor close to 0.8 is unsuitable for the 3D PbI3-framework[8].The mis-matched size of cations will induce lattice strain and the per-ovskite spontaneously transforms to undesired non-photoact-ive yellow phase(δ-phase,like NH4CdCl3)(Fig.1(a))[9,10].There-fore,improving lattice symmetry and reducing lattice strain are the strategies for inhibiting the phase transition of ILHPs.

关键词： inorganic perovskite ammonium

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Eigenvector of Gram-Matrix based Open-Fault Diagnosis Method for Two-level Three-Phase Inverter 10

Eigenvector of Gram-Matrix based Open-Fault Diagnosis Method...

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10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

作者： Zhou, Yang Zhao, Jin Liu, Yang Sun, Lijun Huazhong University of Science and Technology Key Laboratory of Imaging Processing and Intelligence Control Ministry of Education School of Artificial Intelligence and Automation Wuhan China Guangdong Provincial Key Laboratory of Electronic Information Products Reliability Technology China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou China

ISBN: (纸本)9798350351330

This paper studies the power switch open-circuit(OC) fault in two-level three-phase (2L3P) voltage source inverter (VSI). According to the topological symmetry of the inverter, when it works in healthy conditions, its phase currents are standard sine waves with only 120-degree phase difference, and the similarity between phase currents is high. When OC fault occurs, the current waveforms of both normal and fault phases will be distorted, the similarity will be changed. Therefore, this paper introduces the Gram matrix in image processing to measure the similarity and proposes a fast and computationally efficient diagnostic method based on the eigenvector of Gram-Matrix. Physical experiment shows that both single-switch fault and multiple-switch fault on the same leg can be effectively detected and located. © 2024 IEEE.

关键词： Eigenvalues and eigenfunctions

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MEMS sensitive structure sand and dust pollution test and its degradation characteristics 14

MEMS sensitive structure sand and dust pollution test and it...

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14th International Conference on reliability, Maintainability and Safety, ICRMS 2023

作者： Ruan, Bin Zhu, Chunlong Liu, Tingting He, Chunhua Liu, Ruiwen Huang, Qinwen School of Information Engineering Southwest University of Science and Technology Mianyang China Science and Technology on Reliability Physics and Application Technology of Electronic Component Laboratory China Electronic Product Reliability Environmental Testing Research Institute Guangzhou China School of Computer Guangdong University of Technology Guangzhou China Institute of Microelectronics Chinese Academy of Science Beijing China

ISBN: (纸本)9798350329988

The sensitive structures of certain devices containing micro-electromechanical system (MEMS) must be directly exposed to the working environment, making them vulnerable to contamination by dust and other pollutants in that environment. Consequently, this contamination degrades the performance of the device, impacting both its working life and stability. Existing test methods, such as GB/T 4208-2017 and GB/T 2423.37-2006, are not entirely suitable for evaluating the sand and dust contamination test of these MEMS devices. To address these issues, a thermistor-based test structure was designed and processed to develop an evaluation method suitable for testing the sand and dust contamination sensitive MEMS structures. The test results indicate that, unlike other hermetically sealed electronic devices, the imposition of electrical stress and cycling of the operating voltage "on-off" during the test does not increase dust accumulation. Furthermore, due to sand and dust contamination, the thermistor value of the device drifts during operation. This drift primarily arises from increased thermal resistance between the heating element of the device and the surrounding environment, resulting from the accumulation of sand and dust, which results in the increase of temperature of the heating element and ultimately results in an elevated thermistor value. This study can provide support for the structural design and package design of MEMS sensitive structures, and provide a basis for the identification and inspection of related products and the development of detailed specifications. © 2023 IEEE.

关键词： Thermistors

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In-situ synthesis of mixed-valence manganese oxide@S,P self-codoped carbon@reduced graphene oxide composites by enhanced surface interaction for high-performance all-solid-state supercapacitors

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Chinese Journal of Chemical engineering 2025年第4期80卷 315-327页

作者： Yahui Gao Gendi Song Yanjie Xu Yuyu Sun Yong Feng Huijun Tan Wenjie Tian School of Environmental Engineering and Chemistry Luoyang Institute of Science and TechnologyLuoyang 471023China Henan Key Laboratory of Green Building Materials Manufacturing and Intelligent Equipment Luoyang 471023China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

By enhancing surface interaction between metal oxide particles and carbon-based materials,it can effectively improve Faraday capacitance and conductivity,ultimately achieving high energy density with sufficient redox reactions in *** a gentle biomineralization process and subsequent thermal reduction strategy,we successfully prepared the graphene oxide(GO)wrapping mixed-valence manganese oxides(MnO_(x))and S,P self-codoped carbon matrix porous composite(MnO_(x)@SPC@reduced graphene oxide(RGO)).During the biomineralization process of engineered Pseudomonas sp.(Ml)cells,GO nanosheets functioned as the'soil'to adsorb Mn^(2+)ion and uniformly disperse biogenic Mn oxides(BMO).After undergoing annealing,the MnO_(x) nanoparticles were evenly wrapped with graphene,resulting in the creation of the MnO_(x)@SPC@RGO3 *** composite possesses strong C—O—Mn bond interfaces,numerous electroactive sites,and a uniform pore *** optimizing the synergistic interaction between the highly conductive graphene and the remarkable surface capacitance of MnO_(x),the MnO_(x)@SPC@RGO3 electrode,with its intercalation Faraday reactions mechanism of■transformations,exhibits an outstanding specific capacity(448.3 F·g^(-1)at 0.5 A·g^(-1)),multiplying performance(340.5 F·g^(-1)at10 A·g^(-1)),and cycling stability(93.8%retention after 5000 cycles).Moreover,the asymmetric all-solidstate supercapacitors of MnO_(x)@SPC@RGO3//PC exhibit an exceptional energy density of 64.8 W·h·kg^(-1)and power density of 350 W·kg^(-1),as well as a long lifespan with capacitance retention of 92.5%after10000 *** conclusion,the synthetic route utilizing biomineralization and thermal reduction exhibits significant potential for exploiting high-performance electrode materials in all-solid-state supercapacitor applications.

关键词： Electrochemistry Biological engineering Nanomaterials Graphene oxide Manganese oxides Supercapacitors

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