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Enhanced formation of trihalomethane disinfection byproducts from halobenzoquinones under combined UV/chlorine conditions

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Frontiers of Environmental Science & engineering 2022年第6期16卷 109-119页

作者： He Zhao Ching-Hua Huang Chen Zhong Penghui Du Peizhe Sun Beijing Engineering Research Center of Process Pollution Control Division of Environment Technology and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China

Halobenzoquinones(HBQs)are highly toxic disinfection byproducts(DBPs)and are also precursors of other DBPs such as trihalomethanes(THMs).The formation of THMs from HBQs during chlorine-only and UV/chlorine processes with or without bromide was investigated *** functional theory(DFT)reactivity descriptors were also applied to predict the nucleophilic/electrophilic reactive sites on HBQs and *** results were combined to explain the different behaviors of 2,6-dichloro-1,4-benzoquinone(2,6-DCBQ)and tetrachloro-1,4-benzoquinone(TCBQ)and to propose mechanism for the promoting roles of UV and hydroxylation of HBQs in THMs *** UV/chlorine,UV significantly enhanced THMs formation from 2,6-DCBQ compared to chlorine-only,mainly due to the production of OH-DCBQ^(*).Excited 2,6-DCBQ^(*)by UV benefited nucleophilic hydrolysis to produce OH-DCBQ^(*),which favored electrophilic attack by chlorine,thereby inducing more THMs ***/chlorine modestly promoted THMs formation from TCBQ compared to *** of TCBQ and UV irradiation were both important in promoting THMs formation due to the high electrophilic property of OH-TCBQ and TCBQ^(*).Meanwhile,hydroxylation of HBQs and CHCl3 formation were enhanced at higher *** work suggested that enhanced formation of THMs from HBQs should be considered in the application of combined UV and chlorine processes.

关键词： Halobenzoquinone Trihalomethane Chlorine disinfection UV irradiation Disinfection byproducts Combined UV/chlorine

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Transductive Transfer Broad Learning Soft Sensor for Multimode Quality Prediction 9

Transductive Transfer Broad Learning Soft Sensor for Multimo...

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9th International Conference on Information, Cybernetics, and Computational Social Systems, ICCSS 2023

作者： Zhu, Jialiang Deng, Hongying Xu, Danya Yang, Tao Liu, Yi Institute of Process Equipment and Control Engineering Zhejiang University of Technology Hangzhou310023 China State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang110819 China

ISBN: (纸本)9798350342239

In chemical processes, reliable soft sensors are generally established by enough labeled data. However, in most multimode processes, the collection of sufficient labeled data is difficult due to the high cost and complexity. In this work, transductive transfer broad learning (TTBL) is proposed for multimode quality prediction. By transferring the useful information from the related domain, unlabeled data in the prediction domain is utilized for modeling. First, the data feature is extracted by the feature and enhancement nodes. The similarity information of current and related domain data is captured by the k nearest-neighbor graph. Then, label information in the related domain can be transferred and similar information in the same domain can be retained by the manifold regularization framework. Finally, the output weight can be effectively calculated by the ridge regression algorithm. Experimental results on continuous stirred tank reactor datasets show the superiority of TTBL, compared with several common methods. © 2023 IEEE.

关键词： Forecasting

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Highly thermal-conductive graphite flake/Cu composites prepared by sintering intermittently electroplated core-shell powders

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Journal of Materials Science & Technology 2021年第2期61卷 93-99页

作者： Hong Sun Nan Deng Jianqiang Li Gang He Jiangtao Li National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology CAS Key Laboratory of Green Process and Engineering.Institute of Process EngineeringChinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China School of Materials Science and Engineering University of Science and Technology BeijingBeijing100083China Technical Institute of Physics and Chemistry Chinese Academy of SciencesBeijing100190China

Graphite flake/Cu composite has attracted tremendous attention as a promising heat sinks materials owing to its easy machinability and superior thermal properties. However, its preparation process still faces several technological limitations including complex, time-consuming and costly synthetic approaches. In this work, a facile and scalable intermittently electroplated method is applied to prepare Cu-coated graphite flake composite powders, which are subsequently sintered into dense composite bulks. The results show that the graphite flake is successfully coated with a uniform and compact Cu shell,which effectively inhibits the segregation accumulation of graphite flakes and contributes to homogeneous distribution of graphite in the sintered graphite flake/Cu composites. The as-sintered composites exhibit an excellent thermal conductivity of 710 W·m-1·K-1and an outstanding bending strength of 93 MPa. Such performance, together with the simple, efficient powder-preparation process, suggests that the present strategy may open up opportunities for the development of thermal management materials.

关键词： Graphite flake Electroplating Powder processing Thermal properties

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Ce^(3+):Lu_(3)Al_(5)O_(12)–Al_(2)O_(3) optical nanoceramic scintillators elaborated via a low-temperature glass crystallization route

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Journal of Advanced Ceramics 2023年第2期12卷 268-278页

作者： Jie FU Shaowei FENG Yongchang GUO Ying ZHANG Cécile GENEVOIS Emmanuel VERON Mathieu ALLIX Jianqiang LI School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China CNRS CEMHTI UPR 3079Universitéd’OrléansOrléans 45071France University of Chinese Academy of Sciences Beijing 100049China

Transparent Ce:lutetium aluminum garnet(Ce:Lu_(3)A_(l5)O_(12),Ce:LuAG)ceramics have been regarded as potential scintillator materials due to their relatively high density and atomic number(Zeff).However,the current Ce:LuAG ceramics exhibit a light yield much lower than the expected theoretical value due to the inevitable presence of LuAl antisite defects at high sintering *** work demonstrates a low-temperature(1100℃)synthetic strategy for elaborating transparent LuAG–Al_(2)O_(3) nanoceramics through the crystallization of 72 mol%Al_(2)O_(3)–28 mol%Lu_(2)O_(3)(ALu28)bulk *** biphasic nanostructure composed of LuAG and Al_(2)O_(3) nanocrystals makes up the whole ceramic *** of Al_(2)O_(3) is distributed among LuAG grains,and the rest is present inside the LuAG *** dense biphasic LuAG–Al_(2)O_(3) nanoceramics are highly transparent from the visible region to mid-infrared(MIR)region,and particularly the transmittance reaches 82%at 780 ***,LuAl antisite defect-related centers are completely undetectable in X-ray excited luminescence(XEL)spectra of Ce:LuAG–Al_(2)O_(3) nanoceramics with 0.3–1.0 at%*** light yield of 0.3 at%Ce:LuAG–Al_(2)O_(3) nanoceramics is estimated to be 20,000 ph/MeV with short 1μs shaping time,which is far superior to that of commercial Bi_(4)Ge_(3)O_(12)(BGO)single *** results show that a low-temperature glass crystallization route provides an alternative approach for eliminating the antisite defects in LuAG-based ceramics,and is promising to produce garnet-based ceramic materials with excellent properties,thereby meeting the demands of advanced scintillation applications.

关键词： glass crystallization garnet antisite defects Lu_(3)Al_(5)O_(12)-Al_(2)O_(3)(LuAG-Al_(2)O_(3))transparent ceramics nanoceramics scintillation

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Spinning from Nature:Engineered Preparation and Application of High-Performance Bio-Based Fibers

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engineering 2022年第7期8卷 100-112页

作者： Zongpu Xu Mingrui Wu Qi Ye Dong Chen Kai Liu Hao Bai State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China Institute of Applied Bioresources College of Animal SciencesZhejiang UniversityHangzhou 310058China State Key Laboratory of Industrial Control Technology College of Control Science and EngineeringZhejiang UniversityHangzhou 310027China Institute of Process Equipment College of Energy EngineeringZhejiang UniversityHangzhou 310027China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

Many natural fibers are lightweight and display remarkable strength and *** properties originate from the fibers’hierarchical structures,assembled from the molecular to macroscopic *** natural spinning systems that produce such fibers are highly energy efficient,inspiring researchers to mimic these processes to realize robust artificial *** developments have been achieved in recent years toward the preparation of high-performance bio-based *** excellent mechanical properties,bio-based fibers can be functionalized with a series of new features,thus expanding their sophisticated applications in smart textiles,electronic sensors,and biomedical ***,recent progress in the construction of bio-based fibers is *** bioinspired spinning methods,strengthening strategies for mechanically strong fibers,and the diverse applications of these fibers are ***,challenges in reproducing the mechanical performance of natural systems and understanding their dynamic spinning process are ***,a perspective on the development of biological fibers is given.

关键词： Bio-based fiber Hierarchical structure Bioinspired spinning Strengthening strategy Fiber applications

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Phase transition controlled construction of Z-scheme heterojunction Ce3+/Ce4+ doped metastable β-Bi2O3/AgI for efficient carrier separation in visible-light-driven photocatalysis

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Journal of Rare Earths 2025年第5期43卷 940-952页

作者： Jin, Zhouzheng Li, Lei Cao, Chunshuai Dong, Huiling Li, Ao Peng, Xueping Ma, Aijing Pan, Shiguang Liu, Dan Gui, Jianzhou State Key Laboratory of Separation Membranes and Membrane Processes Tianjin Key Laboratory of Green Chemical Technology and Process Engineering School of Chemical Engineering and Technology Tiangong University Tianjin300387 China Tianjin Cement Industry Design & Research Institute Co. Ltd. Tianjin300400 China Ningxia Coal Industry Co. Ltd. CHN ENERGY Yinchuan750411 China School of Chemistry Tiangong University Tianjin300387 China

Ce-β-Bi2O3/AgI was prepared using solvothermal calcination and in-situ deposition methods. The introduction of Ce can inhibit the conversion of Bi2O3 from β to α phase at high temperatures, promoting the formation of oxygen vacancies (OVs) in the photocatalyst. OVs can adsorb more dissolved oxygen to promote the formation rate of ·O2–. Moreover, the interaction between Ce–Bi2O3 and AgI results in the formation of Z-scheme heterojunctions, which can broaden the light absorption region, facilitate photogenerated carrier separation and transfer and enhance the ability to produce more active oxygen species (ROS). The morphology, crystal, element distribution and photo-electric chemical properties of the Ce–Bi2O3/AgI were analyzed, and the result shows that the optimal ratio of Ce–Bi2O3/AgI photocatalyst achieves a removal rate of 88.63% (180 min) of tetracycline (TC) (20 mg/L) and 100% (120 min) of methyl orange (MO) (20 mg/L). This work clarified the photocatalytic degradation mechanism, providing a promising avenue for developing photocatalytic composites by rare earth metal doping in environmental remediation applications. © 2024 Chinese Society of Rare Earths

关键词： Semiconductor doping

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The Nature of Active Sites for Plasmon-Mediated Photothermal Catalysis and Heat-Coupled Photocatalysis in Dry Reforming of Methane

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Energy & Environmental Materials 2023年第5期6卷 381-388页

作者： Jinqiang Zhang Liang Wang Xiaoli Zhao Lei Shi Haijun Chen Shu Zhang Peng Zhang Shuaijun Wang Laichang Zhang Yinfeng Wang Xiaoyuan Wang Yuezhao Zhu Huayang Zhang Xiaoguang Duan Mingbo Wu Guosheng Shao Shaobin Wang Hongqi Sun School of Engineering Edith Cowan University 270 Joondalup DriveJoondalup WA 6027Australia Jiangsu Key laboratory of Process Enhancement and New Energy Equipment Technology School of Mechanical and Power EngineeringNanjing Tech UniversityNanjing 211816China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001China School of Chemical Engineering The University of Adelaide Adelaide South Australia 5005Australia State Key Laboratory of Heavy Oil Processing Institute of New EnergyCollege of Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China

Solar energy-induced catalysis has been attracting intensive interests and its quantum efficiencies in plasmon-mediated photothermal catalysis(P-photothermal catalysis)and external heat-coupled photocatalysis(E-photothermal catalysis)are ultimately determined by the catalyst structure for photo-induced energetic hot ***,different catalysts of supported(TiO_(2)-P25 and Al_(2)O_(3))platinum quantum dots are employed in photo,thermal,and photothermal catalytic dry reforming of *** experimental and computational results unveil different active sites(hot zones)on the two catalysts for photo,thermal,and photothermal *** hot zones of P-photothermal catalysis are identified to be the metal-support interface on Pt/P25 and the Pt surface on Pt/Al_(2)O_(3),***,a change of the active site to the Pt surface on Pt/P25 is for the first time observed in E-photothermal catalysis(external heating temperature of 700℃).The hot zones contribute to the significant enhancements in photothermal catalytic reactivity against *** study helps to understand the reaction mechanism of photothermal catalysis to exploit efficient catalysts for solar energy utilization and fossil fuels upgrading.

关键词： dry reforming of methane hot zones photothermal catalysis platinum-based catalysts

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Pickering emulsions stabilized by biocompatible particles:A review of preparation,bioapplication,and perspective

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Particuology 2022年第5期20卷 110-120页

作者： Tong Zhang Fuguo Liu Jie Wu To Ngai Department of Chemistry the Chinese University of Hong KongShatinN.T.Hong KongChina College of Food Science and Engineering Northwest A&F UniversityYangling 712100China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 700790China

The phenomenon of adsorption of solid particles at fluid interfaces to stabilize emulsions or foams have been known for more than a ***,particle-stabilized emulsions,often referred to as Pickering emulsions,are receiving growing attention as they are encountered in oil recovery and have long been used in personal care products and food *** the past 10 years the focus of the Pickering emulsion has also increasingly shifted to biomedical applications with thanks to novel syntheses of a wide range of biocompatible particle ***,a brief overview of the development of biocompatible particles is given for Pickering emulsion stabilization,including alginate,poly(lactic-co-gIycolic acid)(PLGA),and protein-based *** materials prepared by templating from emulsion stabilized with biocompatible particles include colloidal capsules and hierarchically porous *** is hoped that the understanding gained from the recent intense activity in the field will enable more researchers to modify existing materials and design new formulations,which would be beneficial for exploring more biological applications.

关键词： Biocompatible particle Pickering emulsion High internal phase emulsion(HIPE) Porous structure

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Large Scale One-Pot Synthesis of Monodispersed Na_(3)(VOPO_(4))_(2)F Cathode for Na-Ion Batteries

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Energy Material Advances 2022年第1期2022卷 309-319页

作者： Qiangqiang Zhang Xing Shen Quan Zhou Kaixuan Li Feixiang Ding Yaxiang Lu Junmei Zhao Liquan Chen Yong-Sheng Hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China

Na-ion batteries(NIBs)have received significant interest as potential candidates for large-scale energy storage owing to the widespread distribution of sodium and superior low-temperature ***,their commercial application is usually hindered by the high production cost and inadequate performance for electrode materials,particularly for ***_(3)(VOPO_(4))_(2)F(NVOPF)has been recognized as one of the most promising cathodes for high-energy NIBs owing to the high working voltage and energy ***,we report a facile highly efficient room-temperature solution protocol for large-scale synthesis of NVOPF cathode for *** simply regulating pH,NVOPF can be obtained,which delivered a discharge capacity of 120.2 mAh g^(-1) at 0.1 C and 72%capacity retention over 8000 cycles at 25 ***,the kilogram-level NVOPF products have been synthesized,and 26650 cylindrical cells were fabricated,which exhibit excellent cycling stabilities,remarkable lowtemperature performance with comparable safety *** hope our findings could provide insights on the industrial application of NVOPF in NIBs.

关键词： cycling cylindrical Cathode

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Special Issue for the 14th Global Chinese Chemical engineering Symposium

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Frontiers of Chemical Science and engineering 2023年第10期17卷 1321-1322页

作者： Jesse Zhu Junwu Wang Particle Technology Research Centre Western UniversityLondonOntario N6A 5B9Canada State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

The Global Chinese Chemical engineering Symposium(GCCES)is a prestigious and world-wide platform for the communication and academic exchange of chemical science and *** special issue is a collection of the keynote lectures presented by the winners of Future Chemical engineering Scholars,the Global Award for Outstanding Young Female Chemical Engineers,and the International Award for Outstanding Young Chemical Engineers,selected by the International Scientific Committee of the GCCES.

关键词： engineering. Global Engineers

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