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Ligand-tuning of coordination compound for improved oxygen evolution

Chinese Journal of Chemical engineering 2024年第12期76卷 292-300页

作者： Kunpeng Yang Yuanjun Liu Yuyu Liu Xingmei Guo Xiangjun Zheng Junhao Zhang Guoxing Zhu School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 202018China School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 202013China Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China School of Chemistry and Life SciencesSuzhou University of Science and TechnologySuzhou 215009China

Controllable regulation of the reconstruction process for the pre-catalysts towards oxygen evolution remains as a great *** this study,we report a bi-ligand strategy to facilitate the structural transformation of coordination compounds to metal oxyhydroxides during oxygen evolution with enhanced activity.A coordination compound consisting of 1,10-ferrocene acid(Fc)and Ni^(2+)was synthesized,in which terephthalic acid was *** second ligand of terephthalic acid facilitates the reconstruction process,inducing an enhanced catalytic *** 1 mol·L^(-1)KOH aqueous solution,the optimized catalyst can drive a current density of 10 mA·cm^(-2)under a lower overpotential of 220 *** this catalyst,zinc-air batteries can be *** obtained zinc-air battery presents a large specific capacity of 718 mA·h·g^(-1)with excellent cycling stability for over 100 h far exceeding that of Pt/C+RuO_(2)battery fabricated with commercial *** excellent performance and low cost of this catalyst will open up broad prospects for the development of advanced systems for water electrolysis and zinc air batteries.

关键词： Catalysis Electrochemistry Zinc-air battery Coordination compounds Oxygen evolution

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Synthesis of reduced graphene oxide supported FeCu and its environmental applications

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environmental science and Pollution Research 2024年第47期31卷 57655-57665页

作者： Ahmad, Ayyaz Qureshi, Abdul Sattar Hassan, Ali Arshad, Muhammad Khurshid, Hifsa Mehmood, Umar Guo, Xuhong State-Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai200237 China Department of Chemical Engineering and Technology MNS University of Engineering and Technology Multan Pakistan Institute of Biotechnology & amp Genetic Engineering University of Sindh Jamshoro Pakistan State Key Laboratory of Bioreactor Engineering East China University of Science and Technology Shanghai200237 China Institute of Environmental Sciences and Engineering School of Civil and Environmental Engineering National University of Sciences and Technology Islamabad44000 Pakistan Dhahran31261 Saudi Arabia Punjab Human Capital Investment Project Planning & ampDevelopment Board Lahore Pakistan

A significant share of wastewater produced during different processes is released to the surroundings without further treatment. Therefore, polluted water sources are triggering diseases like typhoid. To avoid this, various techniques have been developed for the removal of contaminants from the water. Iron-copper bimetallic nanoparticles (NPs) supported on the reduced graphene oxide (rGOFeCu) were prepared which showed excellent antibacterial activity, efficient dechlorination of 1,1,1-trichloroethane (TCA), and removal of methylene blue (MB). The characterization of prepared nanocomposites was done by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Iron-based bimetallic NPs supported on the graphene were successfully synthesized as confirmed by TEM. Iron has a strong antibacterial effect on microorganisms, especially bacteria. We conducted the antibacterial activity of different compositions of nanocomposite toward Escherichia coli to understand the efficacy of prepared nanocomposites. In the same time and concentration conditions, rGOFeCu showed the best antibacterial activity, as compared to the graphene-based iron. Results show that the excellent antibacterial activity was exhibited by using rGO-Fe95Cu05 within two hours. More than 98% of cell inhibition was observed. The further increase in copper loading has no major effect on antibacterial activity. rGO-Fe95Cu05 exhibited excellent removal efficiency of TCA (99%) within 30 min as compared to other compositions of FeCu. It was found that rGO-Fe95Cu05 exhibited excellent removal efficiency against degradation of methylene blue (MB) through activation of sodium percarbonate (SPC). The results indicated that more than 99% of MB was removed within 15 min. The rGOFeCu represented a great potential material for antibacterial activity towards E. coli and remediation of other pollutants in the wastewater such as TCA and removal of MB. Graphical Abstract: (Figure presented.) © The Author(s), under e

关键词： Escherichia coli

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Degree of ontogenetic diet shift and trophic niche partitioning of Euphausia superba and Thysanoessa macrura are influenced by food availability

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Journal of Oceanology and Limnology 2023年第3期41卷 1039-1049页

作者： Zhipeng PANG Xupeng CHI Zhihui SONG Haibo LI Yunyan CHEN Guang YANG College of Environmental and Safety Engineering Qingdao University of Science and TechnologyQingdao 266061China Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China

Euphausia superba and Thysanoessa macrura are dominant krill species in the Southern Ocean and their habitats are often overlapped *** of the feeding strategies of these two krill species will help us better understand the coexistence mechanisms and estimate the roles that krill played in the food web of the Southern *** trophodynamics of *** and *** at different ontogenetic stages(furcilia,juvenile,adult)were studied using fatty acid and stable isotope biomarkers in the samples collected in Amundsen Sea during austral summer of 2017/2018 and 2018/*** like Fragilariopsis *** the most abundant phytoplankton species in the summer of 2017/2018,while the abundance of phytoplankton in the summer of 2018/2019 was dominated by Phaeocystis *** gradual increase of the carnivorous index 18꞉1n-9/18꞉1n-7 with ontogeny of both species in 2018/2019 indicated more carnivorous feeding of adults compared with juveniles and ***,greaterδ15N values of *** than that of *** were more significant in the juvenile and adult stages during the summer of 2018/*** results indicate that the trophic niche differentiation between the two krill species appeared in postlarval stage and can be influenced by food *** with ***,*** was more prone to feed omnivorously or carnivorously responding to food availability.

关键词： Antarctic krill feeding strategies fatty acids stable isotopes trophodynamics Southern Ocean

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Crystallization of battery-grade lithium carbonate with high recovery rate via solid-liquid reaction

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Particuology 2024年第9期92卷 95-105页

作者： Chaofan Wu Longjin Jiang Wei Wang Bin Dong Zhidong Chang Daixiang Wei Hira Anwar Minghui Zhang Dekun Gao School of Chemistry and Biological Engineering University of Science and Technology BeijingBeijing100083China Anhui Chaoyue Environmental Protection Technology Co. LtdChuzhou239060China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190China Anhui Huihong Technology Co. LtdChuzhou239060China

Lithium carbonate(Li_(2)CO_(3))stands as a pivotal raw material within the lithium-ion battery ***,we propose a solid-liquid reaction crystallization method,employing powdered sodium carbonate instead of its solution,which minimizes the water introduction and markedly elevates one-step lithium recovery *** kinetic calculations,the Li_(2)CO_(3)solid-liquid reaction crystallization process conforms by the Avrami equation rather than shrinking core model,which means the dissolution rate of Na_(2)CO_(3)is the most important factor affecting the reaction *** effects of reaction conditions such as temperature and stirring speed on the Li_(2)CO_(3)precipitation behavior were *** results indicated that temperature is a most essential parameter than other reaction conditions or stirring *** exceptional 93%recovery of Li_(2)CO_(3)at 90℃with a remarkable purity of 99.5%was achieved by using 1.2 M ratio of Na_(2)CO_(3)/Li_(2)SO_(4).This method provides a new idea for the efficient preparation of battery-grade Li_(2)CO_(3).

关键词： Lithium recovery Lithium sulfate Reaction crystallization Battery-grade lithium carbonate

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Superior triethylamine-sensing properties based on SnO2 hollow nanospheres synthesized via one-step process

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Progress in Natural science:Materials International 2024年第4期34卷 682-689页

作者： Mingyue Xu Shu Yan Zia Ur Rehman Jianhua Hou Liangyun Zhai Shengjie Zhu Chuanbao Cao Wanfeng Xie Junyu Zhong Jun Yang State Key Laboratory of Bio-fibers and Eco-textiles School of Electronics and Information College of Materials Science and Engineering College of Chemistry and Chemical Engineering Qingdao University College of Environmental Science and Engineering Yangzhou University State Key Laboratory of Chemical Safety SINOPEC Research Institute of Safety Engineering Co. Ltd. National Registration Center for Chemicals Ministry of Emergency Management Research Center of Materials Science Beijing Institute of Technology State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences

Due to serious harm of triethylamine（TEA） to environmental safety and human health, it is significant to synthesize gas-sensitive materials with high performance for TEA detection. However, it is still a challenge to achieve high-sensitivity detection of TEA at low temperature for a sensor synthesized through an economical and efficient method. In this work, hollow-structured SnO2（HS-SnO2） nanospheres have been fabricated by a facile, low-cost hydrothermal method in one step, which exhibit superior TEA-sensing properties, including not only ultrahigh response（127.75） for 100 ppm TEA, good selectivity, but also fast response and recovery time（17/28 s）, low detection threshold（1 ppm） and robust stability at a relatively low optimum operational temperature of 225°*** excellent gas-sensitizing performances are ascribed to porous hollow structures with rich oxygen vacancies that provide abundant active sites for raising O2adsorption and reaction of TEA and oxygen species. This work offers an effective and economical strategy for fabricating high-performance TEA sensors for industrial applications.

关键词： Hollow-structured SnO2 nanospheres TEA High response Gas sensors

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A new strategy for obtaining highly concentrated phosphorus recovery solution in biofilm phosphorus recovery process

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Journal of environmental sciences 2022年第2期34卷 366-375页

作者： Wanjing Yang Jie Shan Yang Pan Zhen Bi Yong Huang Hao Zhang Min Ni School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China National&Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization Technology Suzhou University of Science and TechnologySuzhou 215009China

Recovery of phosphorus(P)from wastewater is of great significance for alleviating the shortage of P *** present,the P recovery process is faced with the problem of excessive organic carbon consumption when obtaining a P-concentrated recovery *** study proposed a new strategy to obtain a more highly concentrated P recovery solution with minimal carbon consumption by strengthening the P storage capacity of the biofilm.A biofilm sequencing batch reactor(BSBR)process was modified to treat synthetic *** effect of the dissolved oxygen(DO)concentration on the P storage capacity of the biofilm was investigated at DO concentrations of DO 3.5 mg/L(P_(L))and DO 6.5 mg/L(P_(H)).The results showed a maximum P storage of 101.2 and 149.6 mg-P/g-mixed liquid suspended solids under the two *** the P storage capacity of the biofilm resulted in a net increase in the P recovery rate,which was as high as 66.96%in a harvesting cycle,and total soluble P>220 mg/L in the P recovery solution was successfully ***,the carbon cost of P recovery in the BSBR was reduced to 41.57 g-chemical oxygen demand/gP,and the carbon utilization efficiency was *** highlight the new strategy,the P recovery performance of the BSBR was given and the relationship between P content and anaerobic P release was *** addition,the changes in the microbial communities under P_(L) and P_(H) conditions were analyzed.

关键词： Biofilm sequencing batch reactor Phosphorus storage capacity Phosphorus release Phosphorus recovery

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Screening and pilot-scale evaluation of a highly efficient pesticide-degrading Pseudomonas *** BL5

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Chinese Journal of Chemical engineering 2024年第10期74卷 287-294页

作者： Rui Chen Xinyu Zuo He Bai Ruolin Qin Zhiguo Chen Yiyun Liu Wenqing Cao Jingpeng Song Xiaoqiang Jia Department of Biochemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Tianjin Huakan Environmental Protection Technology Co. Ltd.Tianjin 300170China Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China

The widespread use of pesticides has caused serious harm to ecosystems,necessitating effective and environmentally friendly treatment *** stands out as a promising approach for pollutant treatment,wherein the metabolic activities of microorganisms can transform toxic pesticides into compounds with lower or no *** this study,we obtained eight pesticide-degrading strains from pesticide-contaminated sites through continuous enrichment and *** highly efficient pesticide-degrading strains(degradation ratios exceeding 80%)were *** them,Pseudomonas ***5 exhibited the strongest growth(exceeding 10^(9) CFU·ml^(-1))and outstanding degradation of benzene derivatives and chlorinated hydrocarbons at both laboratory and pilot scales,with degradation ratios exceeding 98%and 99.6%,*** research provides new tools and insights for the bioremediation of pesticide-related pollutants.

关键词： Pesticides Pilot-scale Degradation Remediation Pseudomonas sp. Benzene

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Hydrogen-bonded organic framework modified separator for simultaneously enhancing the safety and electrochemical performance of Ni-rich lithium-ion battery

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Journal of Energy Chemistry 2024年第9期96卷 72-78页

作者： Chengyu Han Yu Cao Ming Yang Yuhan Wang Di Tang Shaojie Zhang Yiran Jia Yiming Zhang Hern Kim Fusheng Pan Zhongyi Jiang Jie Sun Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Science and Technology on Power Sources Laboratory Tianjin Institute of Power SourcesTianjin 300384China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Quzhou Institute for Innovation in Resource Chemical Engineering Quzhou 324000ZhejiangChina Department of Energy Science and Technology Director Environmental Waste Recycle InstituteYongin 17058Republic of Korea School of Chemistry and Chemical Engineering Hainan UniversityHaikou 570228HainanChina

Nickel-rich layered oxide cathode(LiNi_(x)Co_(y)Mn_(1−x−y)O_(2),x>0.5,NCM)shows substantial potential for applications in longer-range electrical ***,the rapid capacity decay and serious safety concerns impede its practical *** work provides a hydrogen-bonded organic framework(HOF)modification strategy to simultaneously improve the electrochemical performance,thermal stability and incombustibility of *** cyanurate(MCA),as a low-cost and reliable flame-retardant HOF,was implemented in the separator modification layer,which can prevent the battery short circuit even at a high *** addition,the supermolecule properties of MCA provide unique physical and chemical microenvironment for regulating ion-transport behavior in *** MCA coating layer enabled the nickel-rich layered oxide cathode with a high-capacity retention of 90.3%after 300 cycles at 1.0 ***,the usage of MCA in lithium-ion batteries(LIBs)affords a simple,low-cost and efficient strategy to improve the security and service life of nickel-rich layered cathodes.

关键词： Hydrogen-bonded organic framework Modified separator Ni-richlayered oxide cathode Thermal runaway Li^(+)transference number

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Preferentially selective extraction of lithium from spent LiCoO_(2)cathodes by medium-temperature carbon reduction roasting

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International Journal of Minerals,Metallurgy and Materials 2024年第2期31卷 315-322页

作者： Daixiang Wei Wei Wang Longjin Jiang Zhidong Chang Hualei Zhou Bin Dong Dekun Gao Minghui Zhang Chaofan Wu School of Chemistry and Biological Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Anhui Chaoyue Environmental Protection Technology Co. LtdChuzhou 239060China Anhui Huihong Technology Co. LtdChuzhou 239060China

Lithium recovery from spent lithium-ion batteries(LIBs)have attracted extensive attention due to the skyrocketing price of *** medium-temperature carbon reduction roasting was proposed to preferential selective extraction of lithium from spent Li-CoO_(2)(LCO)cathodes to overcome the incomplete recovery and loss of lithium during the recycling *** LCO layered structure was destroyed and lithium was completely converted into water-soluble Li2CO_(3)under a suitable temperature to control the reduced state of the cobalt *** Co metal agglomerates generated during medium-temperature carbon reduction roasting were broken by wet grinding and ultrasonic crushing to release the entrained *** results showed that 99.10%of the whole lithium could be recovered as Li2CO_(3)with a purity of 99.55%.This work provided a new perspective on the preferentially selective extraction of lithium from spent lithium batteries.

关键词： spent LiCoO_(2)cathodes medium-temperature carbon reduction lithium extraction priority crystal transformation macro-scopic transport resistance

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Conjugated polyaniline as“conveyor”in tungstate boosting cation storage for high-performance aqueous batteries

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Green Energy & Environment 2025年第4期10卷 766-779页

作者： Yanyan Liu Zirui Shao Tianming Lv Zilong Zhang Zhenhua Zhou Tao Hu Changgong Meng Yifu Zhang Hubei Key Laboratory of Radiation Chemistry and Functional Materials School of Nuclear Technology and Chemistry&BiologyHubei University of Science and TechnologyXianning437100China School of Chemistry Dalian University of TechnologyDalian116024China College of Environmental and Chemical Engineering Dalian UniversityDalian116622China

Aqueous ion storage systems have motivated great interest by virtue of low reduction,high eco-sustainability and *** various cathode candidates,transition metal compounds are featured with easy dissolution in aqueous solutions and inferior conductivity,which severely hinder their ***,advantages are taken of the“conveyor effect”of conjugated polyaniline to prepare an oxygen defective tungstate-linked polyaniline(O_(d)-WOP)material with chrysanthemum-like *** virtue of the high electronic conductivity derived from conductive conjugated polyaniline skeleton,unbalanced charge distribution triggered by the defective structure,and reversibly rapid ion(de)intercalation benefited from the open framework with porous chrysanthemum-like microstructure,it delivers outstanding rate capability with a maximum specific capacity of 162.2 mAh g^(-1)and great cycle stability for storing NH_(4)^(+).Additionally,it also adopts a high reversible capacity of 140.4 mAh g^(-1)and outstanding cycling performance to store Ca^(2+).Consequently,the assembled O_(d)-WOP//PTCDI flexible aqueous ammonium ion batteries and calcium ion batteries exhibit superior capacities,energy densities and flexibilities.O_(d)-WOP achieves the NH_(4)^(+) and Ca^(2+)storage capability by interacting with them through hydrogen and ionic bonds,*** deep insight from this work sheds light upon a novel strategy to excavate greater potential of transition metal compounds for aqueous ion batteries.

关键词： Tungstate-linked polyaniline Polyaniline skeleton as“charge conveyor” Oxygen defect Aqueous ammonium ion battery Aqueous calcium ion battery

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