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A long/short-range interconnected carbon with well-defined mesopore for high-energy-density supercapacitors

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Nano Research 2022年第2期15卷 1399-1408页

作者： Yuanyang Xie Chang Yu Wei Guo Lin Ni Zhao Wang Jinhe Yu Le Yang Rong Fu Kunlun Liu Jieshan qiu State Key Lab of Fine Chemicals School of Chemical EngineeringLiaoning Key Lab for Energy Materials and Chemical EngineeringDalian University of TechnologyDalian 116024China

Amorphous carbon derived from biomass unusually combines the merits of large specific surface area and abundant micropores,offering massive anchoring points for ion adsorption in ***,the short-range ordered structure in amorphous carbon hinders the fast electron ***,graphitic carbon with long-range ordered structure is beneficial for electron ***,a low-cost strategy is required to marry hierarchical porous structure with long-range ordered structure,resulting in a long/short-range interconnected porous carbon and then leading to fast ion and electron ***,we modified the solid-phase conversion process of biomass by employing the features of liquid-phase carbonization for petroleum *** the assistance of asphalt,the large specific surface area(>2,000 m^(2)·g^(-1)),high ratio of mesopores(ca.60%)together with long-range ordered structure are in-situ created in as-made porous *** to the well configured structure in small scale,the as-made co-converted carbon can be operated in high-viscosity EMIMBF4 electrolyte with a superior capacitance(315 F·g^(-1)@1 A·g^(-1)).Besides,the as-assembled symmetric supercapacitor can deliver a super-high specific energy of 174 Wh·kg^(-1)@2.0 kW·kg^(-1).This work provides a new version for designing highly porous biomass-derived carbon with long/short-range alternating structure at molecular level.

关键词： long/short-range interconnected porous carbon hierarchical porous structure specific energy/power supercapacitors

A nationwide survey of psychological distress among Chinese people in the COVID-19 epidemic: implications and policy recommendations

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General Psychiatry 2020年第2期33卷 60-62页

作者： Jianyin qiu Bin Shen Min Zhao Zhen Wang Bin Xie Yifeng Xu Shanghai Mental Health Center Shanghai Jiaotong University School of MedicineShanghaiChina Department of Al Health Informatics Siuvo IncShanghaiChina

The Coronavirus Disease 2019(COVID-19)epidemic emerged in Wuhan,China,spread nationwide and then onto half a dozen other countries between December 2019 and early *** implementation of unprecedented strict quarantine measures in China has kept a large number of people in isolation and affected many aspects of people’s *** has also triggered a wide variety of psychological problems,such as panic disorder,anxiety and *** study is the first nationwide largescale survey of psychological distress in the general population of China during the COVID-19 epidemic.

关键词： nationwide policy survey

Zwitterionic monolayer grafted ceramic membrane with an antifouling performance for the efficient oil-water separation

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Chinese Journal of Chemical Engineering 2022年第2期35卷 227-235页

作者： Tianyu Zhang Qian Wang Wei Luan Xue Li Xianfu Chen Dong Ding Zhichao Shen Minghui qiu Zhaoliang Cui Yiqun Fan State Key Laboratory of Materials-Oriented Chemical Engineering National Engineering Research Center for Special Separation MembranesCollege of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Zhangjiagang Institute of Nanjing Tech University Suzhou 215699China

Enormous demands on the separation of oil/water(O/W)emulsions in various industries,such as petrochemical,food and pharmaceutical industries,are looking for high performance and energy-efficient separation *** membranes have been used to deal with O/W emulsions,for its outstanding characteristics of easy-operation,high-flux,and long-term ***,membrane fouling is still a challenge in the industrial application of ceramic ***,antifouling ceramic membranes were fabricated by grafting zwitterions on the membrane surface via an environment-friendly two-step grafting method,which improves the antifouling property and *** grafting of such zwitterion on the ceramic surface was assessed by the combination of FTIR and XPS *** importantly,the hydration can be formed by electrostatic interactions layer on the modified membrane,which was confirmed by TGA *** antifouling performance of prepared zwitterionic ceramic membranes in the separation of O/W emulsions was systematically *** results suggested that zwitterion can significantly improve the flux of ceramic ultrafiltration membrane,and can also improve antifouling property dramatically by reducing the irreversible fouling in the separation of O/W ***,zwitterionic ceramic membranes hold promising potentials as an antifouling,highly efficient and green method in the practical purification of the O/W emulsions.

关键词： Ceramic membrane Zwitterionic Anti-fouling Hydration layer Oil/water emulsion

SYNTHESIS OF HYBRID MESOPOROUS POLYSTYRENE-SILICA MATERIALS WITH NON-SURFACTANT CITRIC ACID AS TEMPLATE VIA SOL-GEL PROCESS

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Chinese Journal of Polymer Science 2002年第6期20卷 565-572页

作者： Jie Bai Jin-yu Zheng Kun-yuan qiu Yen Wei Department of Polymer Science & Engineering College of Chemistry & Molecular Engineering, Peking University Beijing 100871, China Department of Chemistry, Drexel University, Philadelphia, PA 19104, USA Department of Polymer Science & Engineering College of Chemistry & Molecular Engineering Peking University 北京 100871 Department of Chemistry Drexel University Philadelphia PA 19104 美国

Hybrid mesoporous polystyrene-silica materials were successfully prepared through HCl-catalyzed sol-gel reactions of tetraethyl orthosilicate (TEOS) and triethoxysilyl-functionalized polystyrene obtained via atom transfer radical polymerization (ATRP) of styrene, in the presence of citric acid (CA) as non-surfactant template or pore-forming agent and followed by ethanol extraction to remove template molecules. The materials were characterized by infrared spectroscopy OR), N-2 adsorption-desorption measurements, powder X-ray diffraction (XRD), thermogravimetric analysis (TGA) and transmission electron microscopy (TEM). The results indicate that the materials prepared with 50 wt%-60 wt% template contents have average pore sizes of 2-3 nm and large surface areas (ca. 886 m(2)/g) as well as high pore volumes (ca. 0.53 cm(3)/g). The mesoporosity arises from interconnected channels and pores with disordered arrangements. The pore diameters and pore volumes increase as the template content is increased. The pore diameters show a little change upon heating at 200degreesC overnight. However, the materials do not have good hydrothermal stability.

关键词： atom transfer radical polymerization hybrid material mesoporous polystyrene silica

Plasmonic nanoprinting:thinner,brighter&swifter

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Light(Science & Applications) 2023年第1期12卷 39-39页

作者： Lei Jin Cheng-Wei qiu Key Laboratory of RF Circuits&System of Ministry of Education School of Electronics and InformationHangzhou Dianzi UniversityXiasha High Education ParkHangzhou 310018China Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117583Singapore

The plasmonic nanoprinting displays fade-resistant colours with ultrahigh resolution and opens a new avenue toward thedigital colour *** ideal product of nanoprinting requires low-cost production,high-saturation perfo... 详细信息

关键词： printing saturation colour

Modeling Soil Organic Carbon Storage and Its Dynamics in Croplands of China

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Agricultural Sciences in China 2010年第5期9卷 704-712页

作者： TANG Hua-jun qiu Jian-jun WANG Li-gang LI Hu LI Chang-sheng Eric van Ranst Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 P.R.China Institute for the Study of Earth Oceans and Space University of New Hampshire Durham NH 03824 USA Department of Geology and Soil Science (WE13)/Laboratory of Soil Science Ghent University Gent B-9000 Belgium

Soil organic carbon （SOC） is one of the centre issues related to not only soil fertility but also environmental safety. Assessing SOC dynamics in croplands has been a challenge in China for long due to the lack of appropriate methodologies and data sources. As an alternative approach for studying SOC dynamics, process-based models are adopted to meet the needs. In this paper, a process-based model, DeNitrification-DeComposition （DNDC）, was applied to quantify the SOC storage and the spatial distribution in croplands of China in 2003, with the support of a newly compiled county-level soil/ climate/land use database. The simulated results showed that the total SOC storage in the top layer （0-30 cm） of the 1.18 × 10^8 ha croplands of China is 4.7-5.2 Pg C in 2003 with an average value of 4.95 Pg C. The SOC storage in the northeastern provinces （1.3 Pg C） accounts for about 1/4 of the whole national totals due to their dominantly fertile soils with high organic matter content. SOC density ranges from 3.9 to 4.4 kg C m 2, with an average of 4.2 kg C m^-2, a level is much lower than the world average level. The model results also indicated that high rates of SOC losses occurred in the croplands with the most common cropping patterns in China as like single soybean 〉 maize 〉 paddy 〉 cotton 〉 winter wheat and corn rotation. The results reported in this paper showed that there was still a great potential for improving SOC status in most croplands of China by adopting proper farming practices and land-use pattern. Therefore, long-term policy to protect SOC is urgently needed.

关键词： China cropland DNDC model soil organic carbon

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多臂CdS纳米晶体的水热控制合成

无机材料学报 2007年第1期22卷 49-52页

作者：袁求理聂秋林杭州电子科技大学材料物理研究所杭州310018 杭州电子科技大学机电学院杭州310018

以络合剂为辅助剂,用水热方法合成了多臂CdS纳米晶体,用TEM、ED、SEM、RAMAN、PL等技术对产物进行了表征．研究了不同络合剂对水热合成多臂CdS纳米晶体的影响,以乙二胺、甲胺、乙胺为辅助剂水热合成所得三臂CdS的产率分别为2％、35％、8... 详细信息

以络合剂为辅助剂,用水热方法合成了多臂CdS纳米晶体,用TEM、ED、SEM、RAMAN、PL等技术对产物进行了表征．研究了不同络合剂对水热合成多臂CdS纳米晶体的影响,以乙二胺、甲胺、乙胺为辅助剂水热合成所得三臂CdS的产率分别为2％、35％、85％,而以氨为辅助剂时,仅能得到颗粒状CdS纳米晶体．此外,对水热合成多臂CdS纳米晶体的形成机制作了初步探讨．

关键词： CdS 多臂纳米晶体水热合成

A pyrazine based metal-organic framework for selective removal of copper from strongly acidic solutions

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Frontiers of Environmental Science & Engineering 2023年第3期17卷 75-86页

作者： Jiachuang Shao Penghui Shao Mingming Peng Min Li Ziwei Yao Xiuqin Xiong Caiting qiu Yufan Zheng Liming Yang Xubiao Luo Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource utilizationNanchang Hangkong UniversityNanchang 330063China Department of Chemical Engineering Chongqing University of Science and TechnologyChongqing 401331China

The selective capture of copper from strongly acidic solutions is of vital importance from the perspective of sustainable development and environmental *** organic frameworks(MOFs)have attracted the interest of many scholars for adsorption due to their fascinating physicochemical characteristics,including adjustable structure,strong stability and ***,pz-UiO-66 containing a pyrazine structure is successfully synthesized for the efficient separation of copper from strongly acidic *** copper removal at low pH values is accomplished by using this material that is not available in previously reported metal–organic ***,the material exhibits excellent adsorption capacity,with a theoretical maximum copper uptake of 247 mg/*** proven by XPS and FT-IR analysis,the coordination of pyrazine nitrogen atoms with copper ions is the dominant adsorption mechanism of copper by *** work provides an opportunity for efficient and selective copper removal under strongly acidic conditions,and promises extensive application prospects for the removal of copper in the treatment for acid metallurgical wastewater.

关键词： Pyrazine Metal-organic frameworks Copper removal Strong acidity High selectivity

Inspired heat shock protein alleviating prodrug enforces immunogenic photodynamic therapy by eliciting pyroptosis

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Nano Research 2022年第4期15卷 3398-3408页

作者： Junjie Zhou Xianbin Ma Hao Li Derun Chen Liang Mao Leilei Yang Tian Zhang Wei qiu Zhigang Xu Zhi-Jun Sun The State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST)&Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of StomatologyWuhan UniversityWuhan 430079China Key Laboratory of Luminescence Analysis and Molecular Sensing(Southwest University) Ministry of EducationSchool of Materials and Energy&Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and DevicesSouthwest UniversityChongqing 400715China

Despite immunotherapy involving immune checkpoint inhibitors(ICIs)have revolutionized cancer therapy,the clinical efficacy is limited due to ICI *** is a gasdermin-mediated programmed cell death that enhances responses to ***,nontargeted elicitation of pyroptosis may induce systemic side effects and ***,we reasonably design and construct a tumor-specific prodrug that combines the heat shock protein 90 inhibitor tanespimycin(17-AAG)with the photosensitizer chlorin e6(Ce6)to induce pyroptosis,by utilizing the high glutathione level in the tumor *** released Ce6 and 17-AAG produce reactive oxygen species by laser triggering,which induces gasdermin E-mediated ***,17-AAG reduces myeloid-derived suppressor cells and sensitizes tumors to anti-programmed death^(-1)(PD-1)***,our prodrug strategy achieves tumor-targeted pyroptosis to suppress tumor growth,thereby improving the response to anti-PD-1 therapy and extending the survival of 4T1 breast tumor-bearing ***,this pyroptosis-based prodrug represents a novel strategy for enforcing immunogenic photodynamic therapy.

关键词： heat shock proteins photodynamic therapy tumor microenvironment pyroptosis immunotherapy