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OilWater Separation by ZnO-Based Superhydrophobic PU Sponges

Macromolecular Symposia 2020年第1期393卷

作者： Sutar, Rajaram S. Mane, Manisha S. Latthe, Sanjay S. Pawar, P.G. Kumbhar, Sarita S. Nerle, Uma V. Mote, U.E. Bhosale, J.L. Kokare, B.N. Sadasivuni, Kishor Kumar Liu, Shanhu Xing, Ruimin JathMaharashtra416404 India Henan Key Laboratory of Polyoxometalate Chemistry Henan Joint International Research Laboratory of Environmental Pollution Control Materials College of Chemistry and Chemical Engineering Henan University Kaifeng475004 China Shivaji Polytechnic College SangolaMaharashtra413307 India Department of Physics Rajashri Chatrapati Shahu College KolhapurMaharashtra India KLES P C Jabin Science Autonomous College HubballiKarnataka India Department of Physics Shrimant Babasaheb Deshmukh Mahavidyalaya AtpadiMaharashtra India Department of Physics ShikshanMaharshi Bapuji Salunkhe Mahavidyalaya MirajMaharashtra India Department of Chemistry Smt. Meenalben Mehta College PanchganiMaharashtra India Center for Advanced Materials Qatar University Doha2713 Qatar

Continuous oilwater separation is not only an important topic for scientific research but also for practical applications to clean oil from industrial oily wastewater and oil-spill pollution. In this work, polyurethane sponges are coated by ZnO using dip coating technique. ZnO-coated sponges are modified by stearic acid to achieve superhydrophobicity. The ZnO-coated sponges exhibit water contact angle ≈165 and oil contact angle ≈0. The prepared superhydrophobic sponge is sustained in oilwater separation and in separation of oilhot water mixture. Also the wetting properties of the sponge are stable in mechanical test like cutting and twisting. Stearic acid modified ZnO-coated sponge holds good promise for oil-spill cleanup as well as oil/water separation from harsh environments. © 2020 Wiley-VCH GmbH

关键词： Contact angle

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Correction to: Ethylenediamine-bound magnetite nanoparticles as dual function colorimetric sensor having charge transfer and nanozyme activity for TNT and tetryl detection

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Mikrochimica acta 2021年第10期188卷 342页

作者： Batuhan Yardımcı Ömer Kaan Koç Ayşem Üzer Jülide Hızal Reşat Apak Institute of Graduate Studies Chemistry Department Istanbul University-Cerrahpaşa Avcilar Istanbul Turkey. Science and Technology Application and Research Center (ARTMER) Zonguldak Bulent Ecevit University Kozlu Zonguldak Turkey. Engineering Faculty Chemistry Department Istanbul University-Cerrahpaşa Avcilar Istanbul Turkey. Engineering Faculty Chemical and Process Engineering Department Yalova University Yalova Turkey. Engineering Faculty Chemistry Department Istanbul University-Cerrahpaşa Avcilar Istanbul Turkey. rapak@istanbul.edu.tr. Turkish Academy of Sciences (TUBA) Cankaya Ankara Turkey. rapak@istanbul.edu.tr.

A correction to this paper has been published: https://***/10.1007/s00604-021-04955-2

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Fabrication and Characterization of thin Ceramic Films by Spray Pyrolysis

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Materials Today: Proceedings 2018年第14期5卷 27636-27644页

作者： A. Krestou I. Giozis G. Maroulis V. Kyriakou C. Tsanaktsidis N.E. Kiratzis Technological Research Center (TRC) and Department of Environmental and Pollution Control Engineering Western Macedonia University of Applied Sciences Kozani 50100 Greece Department of Chemical Engineering Aristotle University of Thessaloniki Thessaloniki 54124 Greece

Results are presented of the application and process parameter optimization of the technique of solution spray pyrolysis for the fabrication of functional films of the type Cu-CeO 2 και La 0.75 Sr 0.25 MnO 3 (LSM) on dense pellets of yttria-stabilized zirconia (YSZ). The first type of deposited film constitutes a cermet (ceramic-metal composite) that combines the properties of an inert electronic conductor (Cu) and a catalyst while the second is a typical perovskite that exhibits mixed (i.e. ionic and electronic) conductivity. Both types of electrodes find wide use in ceramic fuel cells, gas sensors and catalytic processes.

关键词： Spray pyrolysis Ceramic composites Thin films

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Gas Sensing: Scalable Superior chemical Sensing Performance of Stretchable Ionotronic Skin via a π-Hole Receptor Effect (Adv. Mater. 13/2021)

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Advanced Materials 2021年第13期33卷

作者： Ming Liang Jin Sangsik Park Hyukmin Kweon Hyeong-Jun Koh Min Gao Chao Tang Soo-Yeon Cho Yunpyo Kim Shuye Zhang Xinlin Li Kwanwoo Shin Aiping Fu Hee-Tae Jung Chi Won Ahn Do Hwan Kim Institute for Future Automation School of Qingdao University Qingdao 266071 China Shandong Key Laboratory of Industrial Control Technology Automation School of Qingdao University Qingdao 266071 China Department of Chemical Engineering Pohang University of Science and Technology Pohang 37673 Republic of Korea Department of Chemical Engineering Hanyang University Seoul 04763 Republic of Korea Department of Chemical and Biomolecular Engineering (BK-21 Plus) Korea Advanced Institute of Science and Technology (KAIST) Daejeon 305–701 Republic of Korea Institute of Microengineering École Polytechnique Fédérale de Lausanne (EPFL) Rue de la Maladière 71b Neuchâtel 2000 Switzerland Department of Mechanical Engineering Tsinghua University Beijing 100084 China Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea State Key Laboratory of Advanced Welding and Jointing Harbin Institute of Technology Harbin 150001 China College of Electromechanical Engineering Qingdao University Qingdao 266071 China College of Chemistry and Chemical Engineering Qingdao University Qingdao 266071 China Department of Nano-Structured Materials Research National NanoFab Center (NNFC) 291 Daehak-ro Yuseong-gu Daejeon 305–338 Republic of Korea Institute of Nano Science and Technology Seoul 04763 Republic of Korea

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Correction: How the magnetic field impacts the chiroptical activities of helical copper enantiomers

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New Journal of Chemistry 2021年第43期45卷 20468-20468页

作者： Jialu Wu Bo Li Hong Wang Yingzhen Lai Yue Ye Yongkang Zou Jumei Tian Yaohua Xu Department of Stomatology of Xiamen Medical College & Engineering Research Center of Fujian University for Stomatological Biomaterials Xiamen 361023 China Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology School of Chemical and Environmental Engineering North China Institute of Science and Technology Langfang 065201 Hebei China School and Hospital of Stomatology Fujian Medical University Fuzhou Fujian 350000 China Beijing Zhongkebaice Technology Service Co. Ltd. China

Correction for ‘How the magnetic field impacts the chiroptical activities of helical copper enantiomers’ by Jialu Wu et al., New J. Chem., 2021, DOI: 10.1039/D1NJ03803F.

Correction for ‘How the magnetic field impacts the chiroptical activities of helical copper enantiomers’ by Jialu Wu et al., New J. Chem., 2021, DOI: 10.1039/D1NJ03803F.

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A Spectroscopic Study of Electrochemical Nitrogen and Nitrate Reduction on Rhodium Surfaces

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Advanced Materials 2020年第26期132卷 10565-10569页

作者： Yao, Yao Zhu, Shangqian Wang, Haijiang Li, Hui Shao, Minhua Department of Chemical and Biological Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong Department of Materials Science and Engineering South University of Science and Technology of China 1088 Xueyuan Blvd Nanshan District Guangdong Shenzhen518055 China Department of Mechanical and Energy Engineering South University of Science and Technology of China 1088 Xueyuan Blvd Nanshan District Guangdong Shenzhen518055 China Shenzhen Key Laboratory of Hydrogen Energy South University of Science and Technology of China 1088 Xueyuan Blvd Nanshan District Guangdong Shenzhen518055 China Guangdong Provincial Key Laboratory of Energy Materials for Electric Power South University of Science and Technology of China 1088 Xueyuan Blvd Nanshan District Guangdong Shenzhen518055 China Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong

Rh is a promising electrocatalyst for the nitrogen reduction reaction (NRR) given its suitable nitrogen-adsorption energy and low overpotential. However, the NRR pathway on Rh surfaces remains unknown. In this study, we employ surface-enhanced infrared-absorption spectroscopy (SEIRAS) and differential electrochemical mass spectrometry (DEMS) to study the reaction mechanism of NRR on Rh. N2Hx (0 ≤ x ≤ 2) is detected with a N=N stretching mode at ≈2020 cm−1 by SEIRAS and a signal at m/z=29 by DEMS. A new two-step reaction pathway on Rh surfaces is proposed that involves an electrochemical process with a two-electron transfer to form N2H2 and its subsequent decomposition in the electrolyte producing NH3. Our results also indicate that nitrate reduction and the NRR share the same reaction intermediate N2Hx. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

关键词： Reaction intermediates

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Adaptive in vivo Device for Theranostics of Inflammation by Monitoring of Cytokine Interferon-γ and Its Triggered Aspirin Release

SSRN

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SSRN 2019年

作者： Cao, Chaomin Jin, Ronghua Wei, Hui Liu, Zhongning Ni, Shengnan Chen, Xin Young, Howard A. Liu, Guojun Liu, Guozhen International Joint Research Center for Intelligent Biosensor Technology and Health Central China Normal University Wuhan430079 China School of Chemical Engineering and Technology Shanxi Key Laboratory of Energy Chemical Process Intensification Institute of Polymer Science in Chemical Engineering Xi’an Jiao Tong University Xi’an710049 China Department of Prosthodontics Peking University School and Hospital of Stomatology National Clinical Research Center for Oral Diseases National Engineering Laboratory for Digital and Material Technology of Stomatology Beijing Key Laboratory of Digital Stomatology Beijing100081 China Australian Nuclear Science and Technology Organization New Illuwarra Road Lucas HeightsNSW2234 Australia Graduate School of Biomedical Engineering ARC Centre of Excellent for Nanoscale Bipphotonics Faculty of Engineering University of New South Wales SydneyNSW2052 Australia Cancer and Inflammation Program Center for Cancer Research National Cancer Institute at Frederick FrederickMD21702 United States

Cytokines mediate and control immune and inflammatory responses. Complex interactions exist between cytokines, inflammation and the adaptive responses in maintaining homeostasis, health, and well being. On-demand, local delivery of anti-inflammatory drug molecules to target tissues provides a means for effective drug dosing while reducing the adverse effects of systemic drug delivery. This work demonstrates a proof-of-concept theranostic approach for inflammation based on analyte-kissing induced signaling, whereby a drug (in this report, aspirin) can be released upon detection of a target level of a proinfammatory cytokine(i.e. Interferon-γ (IFN-γ)) in real time. The structure-switching aptamer based biosensor described here is capable of quantitatively and dynamically detecting IFN-γ both in vitro and in vivo with a sensitivity of 10 pg mL-1. Moreover, the released aspirin triggered by the inflammatory cytokine IFN-γ is able to inhibit inflammation in the inflammatory rat model, and the releasing of aspirin can be quantitatively controlled. Herein research provides a novel and promising strategy for in vivo detection of proinflammatory cytokines and the subsequent therapeutic delivery of anti-inflammatory molecules. This universal theranostic platform is expected to achieve great potentials on personalized medicine towards treatment of various of diseases and health conditions. © 2019, The Authors. All rights reserved.

关键词： Pathology

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Risk assessment and genomic characterization of Zika virus in China and its surrounding areas

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Chinese Medical Journal 2019年第14期132卷 1645-1653页

作者： Rong-Fei Liu Zhen-Jian He Peng Mei Jia-Cheng Xi Xu-Dong Cao Li-Hong Yuan Jia-Hai Lu School of Public Health Sun Yat-sen UniversityGuangzhouGuangdong 510080China Key Laboratory of Tropical Disease Control(Sun Yat-sen University) Ministry of EducationGuangzhouGuangdong 510080China Department of Chemical and Biological Engineering University of OttawaOttawaOntarioCanada School of Life Sciences and Biopharmaceutics Guangdong Pharmaceutical UniversityGuangzhouGuangdong 510006China One Health Center of Excellence for Research & Training Sun Yat-sen UniversityGuangzhouGuangdong 510080China

Background:Zika virus (ZIKV) has emerged as a global pathogen causing significant public health *** has reported several imported cases where ZIKV were carried by travelers who frequently travel between China and ZIKV-endemic *** fully characterize the ZIKV strains isolated from the cases reported in China and assess the risk of ZIKV transmission in China,comprehensive phylogenetic and genetic analyses were performed both on all ZIKV sequences of China and on a group of scientifically selected ZIKV sequences reported in some of the top interested destinations for Chinese ***:ZIKV genomic sequences were retrieved from the National center for Biotechnology Information database through stratified *** event detection,maximum likelihood (ML) phylogenetic analysis,molecular clock analysis,selection pressure analysis,and amino acid substitution analysis were used to reconstruct the epidemiology and molecular transmission of ***:The present study investigated 18 ZIKV sequences from China and 70 sequences from 16 selected *** events rarely happens in all ZIKV Asian *** genomes were generally undergone episodic positive selection (17 sites),and only one site was under pervasive positive *** ZIKV imported into China were Asian lineage and were assigned into two clusters:Venezuela-origin (cluster A) and Samoa-origin cluster (cluster B) with common ancestor from French *** time of most recent common ancestors of Cluster A dated to approximately 2013/11 (95% highest posterior density [HPD] 2013/06,2014/ 03) and cluster B dated to 2014/08 (95% HPD 2014/02,2015/01).Cluster B is more variable than Cluster A in comparison with other clusters,but no varied site of biological significance was *** strains in Southeast Asia countries are independent from strains in America ***:The genetic evolution of ZIKV is *** are two independent intro

关键词： Zika virus China Phylogeny Genetic evolution Risk assessment

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Practical PID Hovering control of a Laboratory Quadcopter Using Low-Cost Embedded control Hardware and Software

Practical PID Hovering Control of a Laboratory Quadcopter Us...

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UKACC International Conference on control (control)

作者： Dimitrios Iosifidis Nikolaos Alvanos Christos Yfoulis Simira Papadopoulou C. Galatsopoulos Department of Automation Engineering (DAE) ATEl of Thessaloniki GREECE Department of Automation Engineering ATEI of Thessaloniki GREECE DAE/ATEI of Thessaloniki GREECE Process Control in DAE/A.T.E.I. of Thessaloniki Chemical Process Engineering Research Institute Centre for Research and Technology Thermi Thessaloniki Greece

This paper presents an experimental setup developed mainly in the thesis work of a team of undergraduate students, who designed, built and controlled successfully a laboratory quadcopter. This project focused on the hovering control of a custom-built quadcopter with limited movement along a single vertical post, hence allowing safe operation in a typical laboratory environment, while leaving enough degrees of freedom for useful experimentation with practical PID control laws, which are often disregarded in the educational curriculum of a typical undergraduate control laboratory. The total cost of developing this equipment has been kept particularly low due to the adoption of a modern popular low-cost hardware and software Arduino-based platform and compatible sensors. Interesting future extensions concerning the possibilities offered by this new equipment for teaching, demonstration, project work, as well as research purposes, in the current laboratory practice, are also unfolded.

关键词： Brushless DC motors Permanent magnet motors Pulse width modulation Synchronous motors PI control

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COVID-19 Full Lockdowns Expose Significant Air Quality Benefits towards Electric Vehicles in China

SSRN

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SSRN 2020年

作者： Wang, Liqiang Chen, Xue Zhang, Yibo Li, Mengying Li, Pengfei Jiang, Linhui Xia, Yan Li, Zhen Li, Jiali Wang, Lu Hou, Tangyan Liu, Weiping Rosenfeld, Daniel Zhu, Tong Zhang, Yuanhang Chen, Jianmin Wang, Shuxiao Huang, Yuanlong Seinfeld, John H. Yu, Shaocai Key Laboratory of Environmental Remediation and Ecological Health Ministry of Education Research Center for Air Pollution and Health College of Environment and Resource Sciences Zhejiang University HangzhouZhejiang310058 China Division of Chemistry and Chemical Engineering California Institute of Technology PasadenaCA91125 United States College of Science and Technology Hebei Agricultural University BaodingHebei071000 China Institute of Earth Science The Hebrew University of Jerusalem Jerusalem Israel College of Environmental Sciences and Engineering Peking University Beijing100871 China Department of Environmental Science & Engineering Fudan University Shanghai200433 China School of Environment State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing100084 China

Electric vehicles (EVs) represent a major path for global decarbonization, improvement of air quality and promotion of renewable energy. To tackle the COVID-19 pandemic, China imposed full lockdowns and thorough travel restrictions. This event represents an unprecedented inadvertent geoengineering experiment in vehicle emissions, emulating transition to EVs. Here we novelly exploited observations of air quality during the full lockdown to constrain predictions of a comprehensive chemical transport model. Large traffic flux reductions were near-linearly linked to reductions of NO 2 and PM 2.5 (correlation = 0.491 ~ 0.626). Extrapolating to a full conversion to EV results in a large reduction of PM 2.5 (30 ~ 70%) in most of central and south eastern China. A smaller reduction of PM 2.5 (10 ~ 20%) in Beijing and Tianjin was achievable due to the presence of major industrial emission sources which cause haze at a regional scale. The potential reductions in NO 2 were 40 ~ 90% in most of the megacities. At this present crossroads of policy, our findings reveal timely evidence supporting the transition towards renewable energy. Funding: This study is supported by the department of Science and Technology of China (No. 2016YFC0202702, 2018YFC0213506 and 2018YFC0213503), National research Program for Key Issues in Air Pollution control in China (No. DQGG0107) and National Natural Science Foundation of China (No. 21577126, 41561144004, 21625701). Pengfei Li is supported by Initiation Fund for Introducing Talents of Hebei Agricultural University (412201904) and Youth Top Fund of Universities in Hebei Province (BJ2020032). Conflict of Interest: Authors declare no competing interests. © 2020, The Authors. All rights reserved.

关键词： Air quality

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