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Bacterial communities associated with hydromedusa Gonionemus vertens in diff erent regions in Chinese coastal waters

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Journal of oceanology and Limnology 2022年第4期40卷 1530-1543页

作者： Wenjin HAO lei WANG Fan LI Tingting sun Saijun PENG Yongxue LI Jianmin ZHAO Zhijun DONG School of Life science Nantong UniversityNantong 226019China Muping Coastal Environment Research Station Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China shandong Key Laboratory of Marine Ecological Restoration Shandong Marine Resource and Environment Research InstituteYantai 264006China Center for ocean Mega-science Chinese Academy of SciencesQingdao 266071China

Bacteria communities in cnidarian jellyfi sh can be harmful to many important aquaculture species,as they can be key vectors of bacterial ***,our knowledge of bacterial communities associated with jellyfi sh in culture ponds and their potential roles in the regulation of aquaculture species remains *** this study,sequencing based on the bacterial 16S rRNA gene was used to investigate the composition and variation of the bacterial communities associated with hydromedusa Gonionemus vertens in sea cucumber culture ponds and natural marine *** associated bacterial communities of *** from the culture ponds in the Yellow Sea and Bohai Sea had signifi cantly diff erent compositions,when compared with those from ambient seawater ***,bacterial communities associated with *** had similar diversity and composition in culture ponds and natural marine environment in the Yellow *** were 31 unique bacterial biomarkers identifi ed in three *** major communities were highly abundant in Kiloniellales,Octadecabacter,Polynucleobacter,and Polaribacter,and are related to the environmental information *** candidates such as Vibrionales and Chlamydiales had notably low relative abundances(1%).The venom of the jellyfi sh was considered responsible for damage to the *** study provides important data to help assess the impact of cnidarians-associated bacterial communities on pond aquaculture and the infl uences on material cycling and energy fl ow in marine ecosystems.

关键词： bacterial community hydromedusa the Yellow Sea the Bohai Sea

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Electrolyte Strategies Toward Optimizing Zn Anode for Zinc-Ion Batteries

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Transactions of Tianjin university 2023年第6期29卷 407-431页

作者： Zenglong xu Huiyan xu Jinfeng sun Jieqiang Wang Degang Zhao Bingqiang Cao Xiutong Wang Shuhua Yang Materials Center for Energy and Photoelectrochemical Conversion School of Material Science and EngineeringUniversity of JinanJinan 250022China institute for Smart Materials and engineering University of JinanJinan 250022China Key Laboratory of Marine environmental Corrosion and Bio-fouling Institute of Oceanology and Center for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China

Zinc-ion batteries(ZIBs)with low cost and high safety have become potential candidates for large-scale energy ***,the knotty Zn anode issues such as dendritic growth,hydrogen evolution reaction(HER)and corrosion and passivation are still unavoidable,which greatly limits the wide applications of *** states and additives of electrolytes are closely related to these ***,there is a lack of systematic understanding and discussion about the intrinsic connection between the states and additives of electrolyte and Zn anode *** this review,the basic principles of dendritic growth,HER and corrosion and passivation are fi rstly introduced,and then,electrolyte optimization strategies with the corresponding electrochemical properties are systematically *** particular,the action mechanism of electrolyte additives and the electrolyte states for Zn anode optimization is analyzed in ***,some unique views on the improvement of electrolyte for Zn anode optimization are put forward,which is expected to provide a certain professional reference for designing high-performance ZIBs.

关键词： Zinc-ion batteries Zn anode Electrolyte Additives

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Short‑chain fatty acids(SCFAs)as potential resuscitation factors that promote the isolation and culture of uncultured bacteria in marine sediments

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Marine Life science & Technology 2023年第3期5卷 400-414页

作者： Chun-Shui sun Liu-Yan Zhou Qi-Yun Liang Xiao-Man Wang Yi-xuan lei Zhen-Xing xu Feng-Qing Wang Guan-Jun Chen Zong-Jun Du Da-Shuai Mu Marine College Shandong UniversityWeihai 264209China State Key Laboratory of Microbial Technology Institute of Microbial TechnologyShandong UniversityQingdao 266237China Weihai Research institute of Industrial Technology of shandong {2. Weihai 264209China institute of Microbiology Applications Xinjiang Academy of Agricultural SciencesUrumqi 830000China Tancheng County Inspection and Testing Center Tancheng 276100China Department of Applied Biological Chemistry Graduate School of Agricultural and Life SciencesThe University of TokyoBunkyo-KuTokyo 113-8657Japan Max Planck institute for Marine Microbiology Celsiusstraße 128359 BremenGermany

Many marine bacteria are difcult to culture because they are dormant,rare or found in *** culturing has been widely tested as an important strategy to isolate rare or dormant ***,many more mechanisms remain ***,based on 16S rRNA gene high-throughput sequencing and metabolomics technology,it was found that the short-chain fatty acids(SCFAs)in metabolites were signifcantly correlated with uncultured bacterial groups during enrichment cultures.A pure culture analysis showed that the addition of SCFAs to media also resulted in high efciency for the isolation of uncultured strains from marine *** a result,2.8 strains belonging to 10 phyla,2. families and 82.species were successfully *** uncultured rare taxa within Chlorobi and Kiritimatiellaeota were successfully *** the newly isolated uncultured microbes,most genomes,***,possess SCFA oxidative degradation genes,and these features might aid these microbes in better adapting to the culture media.A further resuscitation analysis of a viable but non-culturable(VBNC)Marinilabiliales strain verifed that the addition of SCFAs could break the dormancy of Marinilabiliales in 5 days,and the growth curve test showed that the SCFAs could shorten the lag phase and increase the growth ***,this study provides new insights into SCFAs,which were frst studied as resuscitation factors in uncultured marine ***,this study can help improve the utilisation and excavation of marine microbial resources,especially for the most-wanted or key players.

关键词： Marine bacteria SCFAs VBNC Resuscitation culture

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Enhanced visible-light photoelectrochemical performance via chemical vapor deposition of Fe2.3 on a WO3 film to form a heterojunction

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Rare Metals 2020年第7期39卷 841-849页

作者： Yi-Fei Zhang Yu-Kun Zhu Chun-Xiao Lv Shou-Juan Lai Wen-Jia xu Jin sun Yuan-Yuan sun Dong-Jiang Yang School of environmental science and {2. State Key Laboratory of Bio-fibers and Eco-textilesShandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological TextilesInstitute of Marine Biobased MaterialsQingdao UniversityQingdao 266071China

A heterojunction photoanode of Fe2.3 loaded on a WO3 film on a fluorine-doped tin oxide substrate(FTO-WO3/Fe2.3)was prepared via a simple hydrothermal and chemical vapor deposition(CVD)growth *** photoanode showed higher photoelectrochemical(PEC)water-splitting activity than that of the pristine FTO-WO3 under simulated sunlight because of the synergistic effect of Fe2.3 and *** as-synthesized material was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and X-ray photoelectron spectroscopy(XPS).The photocurrent density was estimated by linear sweep voltammetry and further confirmed using intensity-modulated photocurrent *** demonstrated that the coated Fe2.3 enhanced the separation and migration efficiencies of the photoinduced electrons and holes,improving the PEC water-splitting *** FTO-WO3/Fe2.3 photoanode showed a 1.2. times enhancement in photocurrent density compared with *** result suggests that facile chemical vapor deposition growth is an effective way to fabricate heterojunctions and improve the properties of WO3 photoanodes for PEC water-splitting applications.

关键词： WO3 Fe2.3 Heterojunction Water splitting

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Research progress of TiO2.photocathodic protection to metals in marine environment

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Journal of oceanology and Limnology 2020年第4期38卷 1018-1044页

作者： WANG Xiutong xu Hui NAN Youbo sun Xin DUAN Jizhou HUANG Yanliang HOU Baorong Key Laboratory of Marine environmental Corrosion and Bio-fouling Institute of OceanologyChinese Academy of SciencesQingdao 266071China Open Studio for Marine Corrosion and Protection Pilot National Laboratory for Marine Science and TechnologyQingdao 266237China university of Chinese Academy of sciences Beijing 100049China Center for ocean Mega-science Chinese Academy of SciencesQingdao 266071China

Corrosion protection has become an important issue as the amount of infrastructure construction in marine environment *** protection is a promising method to reduce the corrosion of metals,and titanium dioxide(TiO2. is the most widely used *** review summarizes the progress in TiO2.photo gene rated protection in recent *** types of semiconductors,including sulfides,metals,metal oxide s,polymers,and other materials,are used to design and modify *** strategy to dramatically improve the efficiency of photoactivity is proposed,and the mechanism is investigated in *** methods are also introduced,including morphology testing,light absorption,photoelectrochemistry,and protected metal *** review aims to provide a comprehensive overview of Ti02.development and guide photocathodic protection.

关键词： photocathodic protection corrosion titanium dioxide(TiO2. photoelectrochemistry metal

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Characteristics and influencing factors of frontal upwelling in the Yellow Sea in summer

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Acta oceanologica Sinica 2022年第7期41卷 84-96页

作者： Fan sun Fei Yu Guangcheng Si Jianfeng Wang Anqi xu Jun Pan Ying Tang institute of oceanology Chinese Academy of SciencesQingdao266071China Tianjin Navigation Instruments Research institute Tianjin300131China university of Chinese Academy of sciences Beijing100049China Key Laboratory of ocean Circulation and Waves Chinese Academy of SciencesQingdao266071China Center for ocean Mega-science Chinese Academy of SciencesQingdao266071China Laboratory for ocean Dynamics and Climate Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao266237China Center for Marine environmental engineering Institute of OceanologyChinese Academy of SciencesQingdao266071China

Frontal upwelling is an important phenomenon in summer in the Yellow Sea(YS)and plays an essential role in the distribution of nutrients and biological *** this paper,a three-dimensional hydrodynamic model is applied to investigate the characteristics and influencing factors of frontal upwelling in the *** results show that the strength and distribution of frontal upwelling are largely dependent on the topography and bottom temperature *** frontal upwelling in the YS is stronger and narrower near the eastern coast than near the western coast due to the steeper shelf ***,external forcings,such as the meridional wind speed and air temperature in summer and the air temperature in the preceding winter and spring,have certain influences on the strength of frontal *** increase in air temperature in the previous winter and spring weakens the frontal upwelling in summer;in contrast,an increase in air temperature in summer strengthens the frontal *** the southerly wind in summer increases,the upwelling intensifies in the western YS and weakens in the eastern *** air temperature influences the strength of upwelling by changing the baroclinicity in the frontal ***,the meridional wind speed in summer affects frontal upwelling via Ekman pumping.

关键词： influencing factors Yellow Sea frontal upwelling bottom temperature fronts numerical study

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Carbon hollow spheres as cocatalyst of Cu-doped TiO_(2.nanoparticles for improved photocatalytic H_(2.generation

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Rare Metals 2022年第6期41卷 2063-2073页

作者： Li-Juan sun Hai-Wei Su Di-Fa xu Le-Le Wang Hua Tang Qin-Qin Liu School of Materials science and engineering Jiangsu UniversityZhenjiang 212013China Hunan Key Laboratory of Applied environmental Photocatalysis Changsha UniversityChangsha 410022China State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350108China School of environmental science and {2. Qingdao UniversityQingdao 266071China

The reasonable employment of cocatalyst in photocatalysis can effectively promote the photocatalytic H_(2.production *** this study,carbon hollow spheres(C),as a good conductive nonmetallic material,have been utilized as a novel cocatalyst and a matrix for loading the Cu-doped-TiO_(2.nanoparticles by a successive hydrother-mal method and metal molten salt *** Cu-doped-TiO_(2.nanoparticles were tightly anchored on the surface of carbon hollow sphere to form a zero-dimensional/three dimensional(0D/3D)Cu-doped-TiO2.C *** optimal Cu-doped-TiO_(2./C heterojunction demon-strated greatly enhanced photocatalytic H_(2. generation activity(14.4 mmol·g^(-1)·h^(-1))compared with TiO_(2.(0.33 mmol·g^(-1)·h^(-1))and TiO_(2./C(0.7 mmol·g^(-1)·h^(-1)).The performance improvement was mainly due to the syner-gistic effect of carbon hollow sphere cocatalyst and Cu-doping,the Cu-doping in TiO_(2.nanoparticles can minimize charge recombination and enhance the available photoex-cited electrons,while the 3D carbon hollow spheres can act as electron traps to accelerate the charge separation and offer abundant active sites for solar water splitting reaction.

关键词： Cartbon hollow sphere Cu-doped TiO_(2. Photocatalytic H_(2.generation

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Electrochemically induced phase transition in a nanoflower vanadium tetrasulfide cathode for high-performance zinc-ion batteries

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Journal of Energy Chemistry 2022年第6期31卷 356-362,I0010页

作者： Shizhe Gao Peng Ju Ziquan Liu lei Zhai Wenbao Liu Xiaoyu Zhang Yanli Zhou Caifu Dong Fuyi Jiang Jianchao sun School of Environment and Material engineering Yantai UniversityYantai 264005ShandongChina Key Laboratory of Marine Eco-environmental science and Technology Marine Bioresource and Environment Research CenterFirst Institute of OceanographyMinistry of Natural ResourcesQingdao 266061ShandongChina

Aqueous zinc-ion batteries (AZIBs) are promising contenders for large-scale energy storage with the merits of their low cost,high safety,environmental friendliness,and competitive gravimetric energy ***,suitable cathode materials with long cycle life and adequate capacity are still ***,we report a nanoflower vanadium tetrasulfide/carbon nanotubes (VS_(4)/CNTs) cathode with high Znstorage *** propose a phase transition reaction mechanism from VS_(4)to zinc pyrovanadate in the initial cycles and a reversible intercalation mechanism for Zn^(2.) in zinc pyrovanadate during subsequent *** a result,the cathode delivers a high discharge capacity of 2.5 mAh g^(-1)at 0.2. A g^(-1)and 182.m Ah g^(-1)at 7 A g^(-1).In addition,the cathode exhibits a long-term cyclability with 93%capacity retention over 12.0 cycles at 5 A g^(-1).VS_(4)/CNTs with superior electrochemical performance is a hopeful cathode material in AZIBs.

关键词： Zinc-ion batteries Vanadium tetrasulfide Zinc pyrovanadate Phase transition Reaction mechanism

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Cross-polymerization between the model furans and phenolics in bio-oil with acid or alkaline catalysts

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Green Energy & Environment 2021年第1期6卷 138-149页

作者： Qing xu xun Hu Lijun Zhang Kai sun Yuewen Shao Zhiran Gao Qing Liu Chun-Zhu Li School of Material science and engineering University of JinanJinan250022China Key Laboratory of Low Carbon Energy and Chemical engineering College of Chemical and Environmental EngineeringShandong University of Science and TechnologyQingdao266590China Fuels and Energy Technology institute Curtin UniversityGPO Box U1987PerthW16845Australia

Polymerization is a major challenge for the upgrading of bio-oil to biofuels,but is preferable for the production of carbon material from *** the mechanism for polymerization is of importance for tailoring property of carbon *** study investigated the characteristics for the polymerisation of furfural,vanillin,their cross-polymerization and the impacts of catalysts on their *** results indicated that the organic acids like acetic acid and formic acid could catalyze the polymerisation of furfural,while H_(2.SO_(4)or NaOH as catalyst could drastically enhance the degree of polymerization of *** showed a higher tendency towards polymerization than furfural and H_(2.SO_(4)or NaOH significantly facilitated the polymerization of vanillin via shifting the pasty product to solid *** crosspolymerization between furfural and vanillin occurred even in the absence of catalyst,while the presence of H_(2.SO_(4)or NaOH catalyst resulted in the formation of more solid polymer via *** polymerisation reactions were accompanied with the consumption of–C¼O via aldol addition/condensation *** addition,the morphology and thermal stability of the polymers formed were affected by both the type of the catalysts employed,which can in turn enhance the cross-polymerization between furfural and vanillin.

关键词： Furfural Vanillin Cross-polymerization Catalysts Polymers

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Differential gene expression in the body wall of the sea cucumber(Apostichopus japonicus)under strong lighting and dark conditions

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Acta oceanologica Sinica 2018年第5期37卷 54-66页

作者： ZHANG Libin FENG Qiming sun Lina FANG Yan xu Dongxue ZHANG Tao YANG Hongsheng CAS Key laboratory of Marine Ecology and environmental sciences Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Laboratory for Marine Ecology and environmental science Qingdao National Laboratory for Marine Science and Technology Qingdao 266071 China university of Chinese Academy of sciences Beijing 100049 China School of Agriculture Ludong University Yantai 264025 China College of Marine science and engineering Qingdao Agricultural University Qingdao 266109 China

Sea cucumber, Apostichopus japonicus is very sensitive to light changes. It is important to study the influence of light on the molecular response of A. japonicus. In this study, RNA-seq provided a general overview of the gene expression profiles of the body walls of A. japonicus exposed to strong light（＂light＂）, normal light（＂control＂） and fully dark（＂dark＂） environment. In the comparisons of ＂control＂ vs. ＂dark＂, ＂control＂ vs. ＂light＂ and ＂dark＂ vs.＂light＂, 1 161, 113 and 1 705 differentially expressed genes（DEGs） were identified following the criteria of｜log2.ratio｜≥1 and FDR≤0.001, respectively. Gene ontology analysis showed that ＂cellular process＂ and ＂binding＂enriched the most DEGs in the category of ＂biological process＂ and ＂molecular function＂, while ＂cell＂ and ＂cell part＂ enriched the most DEGs in the category of ＂cellular component＂. And the DEGs were mapped to 2.4, 41 and2.9 pathways in the Kyoto Encyclopedia of Genes and Genomes database, and 51, 2.and 57 pathways were significantly enriched, respectively. Light-specific DEGs identified in this study will be important targets for further investigation to establish the biochemical mechanisms involved in the adaption of this sea cucumber to changes in the level of environmental light.

关键词： sea cucumber Apostichopus japonicus gene expression dark light body wall

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