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Journal of Rare Earths 2023年第8期41卷 1171-1178,I0002页

作者： Bing Zhou Quanli Ke Meijun Wen Tianbiao Ying Guokai Cui Ying Zhou Zhenyu Gu Hanfeng Lu institute of Catalytic Reaction Engineering College of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014China Key Laboratory of environmental Pollution Control Technology research of zhejiang province Eco-environmental Science Research&Design Institute of Zhejiang ProvinceHangzhou 310007China

CeO_(2),La_(2)O_(3),and CeO_(2)-Y_(2)O_(3) oxides were coated on the surface of spherical granular AI_(2)O_(3)(3-5 mm)through impregnation method,and proved as better supports of Pd and Pt catalysts.The influences of rare earth metal doping on the adsorption rates of Pd and Pt ions,as well as the catalytic performance,were investigated.Results show that the H_(2)PtCl_(6)·6H_(2)O adsorption rates of the Al_(2)O_(3) carriers modified by Ce,La,and CeY increase significantly.These rare earth coatings can adsorb almost all H2PtCl_(6)·6H_(2)O in the solution.Compared with Pt/Al_(2)O_(3) catalyst,Pt/Ce-AI_(2)O_(3) and Pt/CeY-AI_(2)O_(3) catalysts have better degradation performance for toluene,and the T_(90) temperatures are both about 147℃.According to X-ray photoelectron spectroscopy(XPS)characterization,Pt^(0)is an important active species for catalytic oxidation reaction of toluene.After CeO_(2)modification to the conventional Pt/Al_(2)O_(3)catalyst,the proportion of Pt^(0)increases from 74.5%to 82.1%.When the Pt^(0)content in the metal state is improved,the redox activity of the catalyst is promoted correspondingly.

关键词： Volatile organic compounds Catalytic oxidization Carrier modification Pt/Ce-Al_(2)O_(3) Rare earths

Dielectr ic barr ier discharge plasma-assisted modification of g-C_(3)N_(4)/Ag_(2)O/TiO_(2)-NRs composite enhanced photoelectrocatalytic activity

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Journal of environmental sciences 2021年第6期33卷 113-127页

作者： Yupei Long Chenchen Yuan Xiaomin Wang Dongyan Jin Hong Zhou Qiongyin Wang Chenyang Lu Yuqi Chen Yanqing Cong Qi Wang Yi Zhang School of environmental science and Engineering Zhejiang Gongshang UniversityHangzhou310018China Ecological environmental science design and research institute of zhejiang province Hangzhou310007China

Dielectric barrier discharge(DBD)plasma applied as surface treatment technology was employed for the modification of Ag_(2)O and graphitic carbon nitride(g-C_(3)N_(4))powders.Subsequently,the pretreated powders were sequentially loaded onto TiO_(2)nanorods(TiO_(2)-NRs)via electro-deposition,followed by calcination at N_(2)atmosphere.The results indicated that at the optimal plasma discharge time of 5 min for modification of g-C_(3)N_(4)and Ag_(2)O,photocurrent density of ternary composite was 6 times to bare TiO_(2)-NRs under UV-visible light irradiation.Phenol was degraded by using DBD plasma-modified g-C_(3)N_(4)/Ag_(2)O/TiO_(2)-NRs electrode to analyze the photoelectrocatalytic performance.The removal rate of phenol for g-C_(3)N_(4)-5/Ag_(2)O-5/TiO_(2)-NRs electrode was about 3.07 times to that for TiO_(2)-NRs electrode.During active species scavengers'analysis,superoxide radicals and hydroxyl radicals were the main oxidation active species for pollutants degradation.A possible electron-hole separation and transfer mechanism of ternary composite with high photoelectrocatalytic performance was proposed.

关键词： Degradation mechanism Photoelectrochemical catalysis Plasma treatment Ternary material Z-scheme structure

基于MFD及实时路况的城市道路机动车排放计算方法

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Atmospheric and Oceanic science Letters 2020年第2期13卷 89-96页

作者： WANG Kun TONG Yali CAO Tianhui WANG Chenlong WANG Renjie GAO Jiajia LIU Yuan Beijing Municipal institute of Labor Protection BeijingChina Environmental Science Research&Design Institute of Zhejiang Province HangzhouZhejiangChina Transport Planning and research institute Beijing BeijingChina China Association of environmental Protection Industry BeijingChina

本文提出了基于交通流宏观基本图(MFD)以及实时路况数据的城市道路机动车排放计算方法,并以环境保护部发布的指导方法为参照,对所述方法进行了对比验证。以2015年3月北京市五环路高速,国道京福路,省道京周路的氮氧化物排放为例,两种方... 详细信息

本文提出了基于交通流宏观基本图(MFD)以及实时路况数据的城市道路机动车排放计算方法,并以环境保护部发布的指导方法为参照,对所述方法进行了对比验证。以2015年3月北京市五环路高速,国道京福路,省道京周路的氮氧化物排放为例,两种方法计算结果平均偏差分别为?27.7%,?12.9%,?12.0%。因此,基于MFD及实时路况数据对交通流量及机动车排放的估算,可以较好地反映道路机动车的运行情况及排放特征,在构建应用于街区尺度模型的排放清单,城市区域道路机动车排放的时空分布特征等方面具有非常好的应用潜力。

关键词： MFD 交通态势道路类型车型交通监测数据

Vehicular emissions in China in 2006 and 2010

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Journal of environmental sciences 2016年第10期28卷 179-192页

作者： Guiqian Tang Na Chao Yuesi Wang Jiashan Chen State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC) Institute of Atmospheric Physics Chinese Academy of Sciences environmental science research & design institute of zhejiang province Unit 94865 of PLA

Vehicular emissions in China in 2006 and 2010 were calculated at a high spatial resolution based on the data released by the National Bureau of Statistics, by taking the emission standards into consideration. China＇s vehicular emissions of carbon monoxide （CO）, nitrogen oxides （NOx）, volatile organic compounds （VOCs）, ammonia （NH3）, fine particulate matters （PM2.5）, inhalable particulate matters （PMlo）, black carbon （BC）, and organic carbon （OC） were 30,113.9, 4593.7, 6838.0, 20.9, 400.2, 430.5,285.6, and 105.1 Gg, respectively, in 2006 and 34,175.2, 5167.5, 7029.4, 74.0, 386.4, 417.1, 270.9, and 106.2 Gg, respectively, in 2010. CO, VOCs, and NH3 emissions were mainly from motorcycles and light-duty gasoline vehicles, whereas NOx, PMzs, PMlo, and BC emissions were mainly from rural vehicles and heavy- duty diesel trucks. OC emissions were mainly from motorcycles and heavy-duty diesel trucks. Vehicles of pre-China I （vehicular emission standard of China before phase I） and China I （vehicular emission standard of China in phase I） were the primary contributors to all of the pollutant emissions except NH3, which was mainly from China III and China IV gasoline vehicles. The total emissions of all the pollutants except NH3 changed little from 2006 to 2010. This finding can be attributed to the implementation of strict emission standards and to improvements in oil quality.

关键词： Vehicular emissionsGridded emissionsControl policiesChina

Ta_(3)N_(5)/CdS Core–Shell S‑scheme Heterojunction Nanofibers for Efficient Photocatalytic Removal of Antibiotic Tetracycline and Cr(VI):Performance and Mechanism Insights

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Advanced Fiber Materials 2023年第3期5卷 994-1007页

作者： Shijie Li Mingjie Cai Chunchun Wang Yanping Liu Key Laboratory of Health Risk Factors for Seafood of zhejiang province National Engineering Research Center for Marine AquacultureCollege of Marine Science and TechnologyZhejiang Ocean UniversityZhejiang ProvinceZhoushan 316022China institute of Innovation and Application Zhejiang Ocean UniversityZhejiang ProvinceZhoushan 316022China

Ta_(3)N_(5)/CdS core–shell S-scheme heterojunction nanofibers are fabricated by in situ growing CdS nanodots on Ta_(3)N_(5) nanofib-ers via a simple wet-chemical method.These Ta_(3)N_(5)/CdS nanofibers not only affords superior photocatalytic tetracycline degradation and mineralization performance,but also cause an efficient photocatalytic Cr(VI)reduction performance.The creation of favorable core–shell fiber-shaped S-scheme hetero-structure with tightly contacted interface and the maximum interface contact area promises the effective photo-carrier disintegration and the optimal photo-redox capacity synchronously,thus leading to the preeminent photo-redox ability.Some critical environmental factors on the photo-behavior of Ta_(3)N_(5)/CdS are also evaluated in view of the complexity of the authentic aquatic environment.The degradation products of tetracycline were confirmed by HPLC–MS analyses.Furthermore,the effective decline in eco-toxicity of TC intermediates is confirmed by QSAR calculation.This work provides cutting-edge guidelines for the design of high-performance Ta_(3)N_(5)-based S-scheme heterojunction nanofibers for environment restoration.

关键词： Ta_(3)N_(5)/CdS Electrospinning S-scheme heterojunction Core–shell hetero-structure Cr(VI)reduction Antibiotic degradation

Treatment of Dye Wastewater by Nano-ferrous Modified Bentonite Assisted Advanced Oxidation Processes

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Treatment of Dye Wastewater by Nano-ferrous Modified Bentoni...

The emission inventory of atmospheric industrial pollution sources of the five cities in zhejiang province

2012 International Conference on Nanotechnology Technology and Advanced Materials(ICNTAM 2012)

作者： Mindong Zhang Yanfei Wei Mei Huang Department of Chemical & Biochemical Engineering Zhejiang University environmental science research & design institute of zhejiang province

Degradation of dye wastewater was studied by using nano-ferrous modified bentonite as the heterogeneous catalyst for a Fenton-like oxidation. By comparing the effect of homogeneous Fenton reactions as well as heterogeneous Fenton-like process for nano-modified bentonite, it is found that the advanced oxidation processes assisted by nano-ferrous/bentonite complexes exhibit the stronger degradation capacity. And the removal rate of Fenton-like reaction increased from 23.6% to 75.5% when the ferrous concentration increasing from 20 to 100mmol/L. Being compared with homogeneous Fenton reactions, 20% increased degradation efficiencies is obtained by Fenton-like oxidation process for nano-modified bentonite under 6g nano-ferrous/bentonite complexes in 100 m L dye wastewater.

关键词： nano-ferrous/bentonite complexes dye wastewater advanced oxidation processes Fenton-like reaction

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Chinese Journal of Population,Resources and Environment 2014年第2期12卷 185-188页

作者： Jian Wu Chen Wen Lin Yi Weijun Wang Department of Water Resources and Hydroelectric Engineering Xi'an University of Technology Department of Consulting Center Environmental Science Research & Design Institute of Zhejiang Province Department of environmental science Zhejiang University

The amount of several air pollutants emitted in some cities including Hangzhou,Ningbo,Huzhou,Shaoxing and Jiaxing of zhejiang province is based on pollution source census data of zhejiang province in 2010.This paper focused on the release of air pollutants such as NO_(x2),SO_2,CO,PM2.5,PM10 and VOC,and calculated the total amount of those air pollutants.It analyzed air pollutant emission factors and found that the electricity and heat production industry released the largest amount of pollutants.

关键词： industry emission inventory air pollution zhejiang

Recent Advances of Beta Zeolite in the Volatile Organic Compounds(VOCs)Elimination by the Catalytic Oxidations

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Chemical research in Chinese Universities 2022年第3期38卷 716-722页

作者： CHENG Dajun MENG Xiangju Beijing Municipal research institute of Eco-environmental Protection Beijing100037P.R.China Key Laboratory of Applied Chemistry of zhejiang province Department of ChemistryZhejiang UniversityHangzhou310028P.R.China

Volatile organic compounds(VOCs)have become one of the most serious threats to human health and eco-environment due to their volatility,toxicity and diffusivity,etc.Catalytic completely oxidation had been regarded as a highly efficient strategy for the VOCs abatement.Metal or metal oxides supported on zeolite have been considered as superior catalysts for the treatment of VOCs.Among them,Beta zeolites have attracted many attentions due to their unique structure and consequently catalytic properties in the oxidation of VOCs.The progresses and developments made in the understanding and design of Beta zeolites-based catalysts in the completely oxidation of VOCs in the past two decades have been systematically summarized in this review.

关键词： Beta zeolite Volatile organic compound Catalytic oxidation

Recent progress in high-resolution tactile sensor array: From sensor fabrication to advanced applications

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Progress in Natural science:Materials International 2023年第1期33卷 55-66页

作者： Rui Wang Shaoxiong Hu Wei Zhu Yue Huang Wenhao Wang Ying Li Yuchen Yang Jiajie Yu Yuan Deng research institute for Frontier science Beihang University School of Materials science and Engineering Beihang University Key Laboratory of Intelligent Sensing Materials Chip Integration Technology of Zhejiang Province(2021E10022) Hangzhou Innovation Institute of Beihang University

Tactile sensors can transform the environmental stimuli into electrical signals to perceive and quantify the environmental information, which show huge application prospects. The development of bionic robots and wearable devices towards intelligence has put high demands on the performance of tactile sensor arrays. Herein,the current state-of-the-art tactile sensor arrays over recent years have been summarized, from sensor array fabrication to advanced applications. The main preparation methods of patterned array including screen printing,3D printing, laser microprocessing, and textile technology are discussed in detail. Strategies to optimize the signal crosstalk caused by flexible high-density sensor arrays are systematically introduced from the perspective of structure design and circuit design. Furthermore, advanced tactile sensors are not limited to a single pressure sensing function, and hence the development of multimodal detection for sensors has been discussed. In order to promote the adaptability in applications, stretchable and self-powered versatile integration scheme for advanced sensing are briefly described. Then, by means of machine learning and neural networks, it is possible to deeply explore the information embedded in the tactile acquisition signal with enriched application scenarios. Finally,the current challenges and the future perspectives for flexible tactile sensor arrays towards practical use are provided.

关键词： Tactile sensor arrays Fabrication Anti-crosstalk design Integration strategy Advanced application

Numerical investigation of impinging jet ventilation in ICUs:Is thermal stratification a problem?

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Building Simulation 2023年第7期16卷 1173-1185页

作者： Lei Wang Zhiqiang Wang Sirui Zhu Zhe Zhu Tao Jin Jianjian Wei institute of Refrigeration and Cryogenics/Key Laboratory of Refrigeration and Cryogenic Technology of zhejiang province Zhejiang UniversityHangzhouChina Center for Balance Architecture Zhejiang UniversityHangzhouChina The Architectural design&research institute of zhejiang University Co LtdHangzhouChina zhejiang Modern Architectural design and research institute Co LtdHangzhouChina

Intensive care units(ICUs)are the high incidence sites of hospital-acquired infections,where impinging jet ventilation(IJV)shows great potential.Thermal stratification of IJV and its effect on contaminants distribution were systematically investigated in this study.By changing the setting of heat source or the air change rates,the main driving force of supply airflow can be transformed between thermal buoyancy and inertial force,which can be quantitatively described by the dimensionless buoyant jet length scale(l_(m)^(-)).For the investigated air change rates,namely 2 ACH to 12 ACH,l_(m)^(-)varies between 0.20 and 2.80.The thermal buoyancy plays a dominant role in the movement of the horizontally exhaled airflow by the infector under low air change rate,where the temperature gradient is up to 2.45℃/m.The flow center remains close to the breathing zone of the susceptible ahead,resulting into the highest exposure risk(6.6‰for 10-μm particles).With higher heat flux of four PC monitors(from 0 W to 125.85 W for each monitor),the temperature gradient in ICU rises from 0.22℃/m to 1.02℃/m;however,the average normalized concentration of gaseous contaminants in the occupied zone is reduced from 0.81 to 0.37,because their thermal plumes are also able to carry containments around them to the ceiling-level readily.As the air change rate was increased to 8 ACH(l_(m)^(-)=1.56),high momentum weakened the thermal stratification by reducing the temperature gradient to 0.37℃/m and exhaled flow readily rose above the breathing zone;the intake fraction of susceptible patient located in front of the infector for 10-μm particles reduces to 0.8‰.This study proved the potential application of IJV in ICUs and provides theoretical guidance for its appropriate design.

关键词： impinging jet ventilation heat sources air change rates respiratory particles lock-up phenomenon