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Fabrication of recyclable Fe^(3+) chelated aminated polypropylene fiber for efficient clean-up of phosphate wastewater

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Frontiers of Chemical Science and engineering 2023年第7期17卷 840-852页

作者： Shangyuan Zhao Fangjia Wang Rui Zhou Peisen Liu Qizhong Xiong Weifeng Zhang Chaochun Zhang Gang Xu Xinxin Ye Hongjian Gao Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention Engineering and Technology Research Center of Intelligent Manufacture and Efficient Utilization of Green Phosphorus Fertilizer of Anhui ProvinceCollege of Resources and EnvironmentAnhui Agricultural UniversityHefei 230036China Key Laboratory of JiangHuai Arable Land Resources Protection and Eco-restoration Ministry of Natural ResourcesCollege of Resources and EnvironmentAnhui Agricultural UniversityHefei 230036China Institute of Soil Science Chinese Academy of SciencesNanjing 210008China

Herein,a Fe^(3+)-loaded aminated polypropylene fiber has been reported as an efficient phosphate *** remarkable phosphate removal ability of the fiber is due to Fe^(3+)immobilization,and it demonstrates a maximum adsorption capacity of 33.94 mg·P·g^(–1).Adsorption experiments showed that the fiber is applicable over a wide pH range from 2 to ***,the adsorption kinetics and isotherm data were consistent with the pseudo-second-order and Langmuir adsorption models,*** adsorption equilibrium of the fiber for phosphate was reached within 60 min,indicating an efficient monolayer chemisorption ***,the adsorbent maintained prominent phosphate removal in the presence of competitive ions such as NO_(3)^(–)and Cl^(–),exhibiting high *** importantly,the fiber demonstrated excellent reusability(5 times)and low adsorption limit below 0.02 mg·P·g^(–1).In addition,the phosphate removal efficiency of the fiber can exceed 99%under continuous flow *** adsorption mechanism was studied by X-ray photoelectron spectroscopy,showing that the adsorption of phosphate on the fiber mainly depended on the chemical adsorption of the modified Fe^(3+).Overall,this study proves that the fiber possesses many advantages for phosphate removal,including high adsorption efficiency,lower treatment limit,good recyclability,and environmental friendliness.

关键词： phosphate adsorption aminated polypropylene fiber Fe^(3+) ligand exchange reusability

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Oxygen self-doping pyrolyzed polyacrylic acid as sulfur host with physical/chemical adsorption dual function for lithium-sulfur batteries

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Chinese Chemical Letters 2024年第7期35卷 473-479页

作者： Yan Wang Huixin Chen Fuda Yu Shanyue Wei Jinhui Song Qianfeng He Yiming Xie Miaoliang Huang Canzhong Lu Engineering Research Center of Environment-Friendly Functional Materials Ministry of EducationInstitute of Materials Physical ChemistryHuaqiao UniversityXiamen 361021China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen 361021China

Lithium-sulfur(Li-S)batteries with high theoretical capacity and energy density need to solve problems such as the high decomposition energy barrier of Li_(2)S and large volume change of sulfur in the charging process caused by the shuttle effect before practical ***,a green synthesis method is used to prepare polyacrylic acid(PAA)superabsorbent material,and then the pyrolyzed PAA(P/PAA)material is obtained as the positive electrode of Li-S *** functional calculation reveals that the oxygen self-doping pyrolyzed polyacrylic acid(P/PAA)delivered stronger binding energy toward Li2S species in carbonyl C=O than that of graphite powder(GP)which are-1.58 eV and-1.02 eV,*** with the distribution of relaxation time analysis and the in-situ electrochemical impedance approach,it is further demonstrated that the designed P/PAA as sulfur host plays a physical/chemical adsorption dual function in maintaining the stability and rate performance of *** an initial discharge capacity of 1258 mAh/g at 0.1 C and a minimal capacity decline of 0.05%per cycle even after 800 cycles at 0.5 C,the produced cathode demonstrated outstanding electrochemical *** average Coulombic efficiency is nearly 100%.The P/PAA electrodes may typically retain 96%of their capacity while declining on average only 0.033%per cycle after 130 cycles at 3 *** effort provides a new method for the future development of heteroatomic self-doping superabsorbent with promising adsorption properties for polysulfides as cathode materials of Li-S batteries.

关键词： Polyacrylic acid Oxygen self-doping Green synthetic Pore mesh polymer cathodes Lithium-sulfur batteries

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Unveiling the tailorable electrochemical properties of zeolitic imidazolate framework-derived Ni-doped LiCoO_(2) for lithium-ion batteries in half/full cells

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Journal of Energy Chemistry 2024年第6期93卷 229-242,I0006页

作者： Jian-En Zhou Yiqing Liu Zhijian Peng Quanyi Ye Hua Zhong Xiaoming Lin Ronghua Zeng Yongbo Wu Jiaye Ye Guangdong Provincial International Joint Research Center for Energy Storage Materials Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006GuangdongChina School of Chemistry and Physics Faculty of ScienceQueensland University of TechnologyBrisbaneQLD 4001Australia Key Laboratory of Atomic and Subatomic Structure and Quantum Control(Ministry of Education) Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of MatterSchool of PhysicsSouth China Normal UniversityGuangzhou 510006GuangdongChina Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials Guangdong-Hong Kong Joint Laboratory of Quantum MatterSouth China Normal UniversityGuangzhou 510006GuangdongChina

As a prevailing cathode material of lithium-ion batteries(LIBs),LiCoO_(2)(LCO)still encounters the tricky problems of structural collapse,whose morphological engineering and cation doping are crucial for surmounting the mechanical strains and alleviating phase degradation upon ***,we propose a strategy using a zeolitic imidazolate framework(ZIF)as the self-sacrificing template to directionally prepare a series of LiNi_(0.1)Co_(0.9)O_(2)(LNCO)with tailorable electrochemical *** rational selection of sintering temperature imparts the superiority of the resultant products in lithium storage,during which the sample prepared at 700℃(LNCO-700)outperforms its counterparts in cyclability(156.8 mA h g^(-1)at 1 C for 200 cycles in half cells,1 C=275 mA g^(-1))and rate capability due to the expedited ion/electron transport and the strengthen mechanical *** feasibility of proper Ni doping is also divulged by half/full cell tests and theoretical study,during which LNCO-700(167 mA h g^(-1)at 1 C for 100 cycles in full cells)surpasses LCO-700 in battery performance due to the mitigated phase deterioration,stabilized layered structu re,ameliorated electro nic co nductivity,a nd exalted lithium sto rage *** work systematically unveils tailorable electrochemical behaviors of LNCO to better direct their practical application.

关键词： Lithium-ion batteries Zeolitic imidazolate framework LiNi_(0.1)Co_(0.9)O_(2) Electrochemical properties

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Controllable heterogeneous interfaces and dielectric modulation of biomass-derived nanosheet metal-sulfide complexes for high-performance electromagnetic wave absorption

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Journal of Materials Science & Technology 2024年第18期185卷 165-173页

作者： Zehua Zhou Di Lan Junwen Ren Yuhang Cheng Zirui Jia Guanglei Wu Pengfei Yin College of Science Sichuan Agricultural UniversityYa’an 625014China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China College of Electrical Engineering Sichuan UniversityChengdu 610065China

Constructing new environmentally friendly dielectric coupling models is an effective strategy for design-ing high-performance wave ***,biomass carbon materials with high potential energy and a lack of magnetic response mechanism do not fulfill the *** this work,the effects of different pyrolysis temperatures and the introduction of different metal sulfides on the microscopic morphology and dielectric-magnetic properties of the composites were *** them,K el-ement detected in the biomass effectively modulates the conduction *** minimum reflection loss(RL_(min))of-62.42 dB at 1.8 mm and the maximum effective absorption bandwidth(EAB_(max))of-62.42 dB at 1.9 mm were obtained due to the non-uniform interfacial-induced polarization of the metal-sulfide nanosheets and the scattering of the electromagnetic waves(EW)by the“island”*** study provides a powerful reference for the modification and application of biomass materials.

关键词： Biomass materials Metal sulfide Electromagnetic wave absorption Oxygen vacancy Interfacial polarization

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Coordination between leaf pH and other leaf traits are divergent among life-forms and eco-geographic regions in plants of northern China

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Journal of Plant Ecology 2024年第6期17卷 390-404页

作者： Sining Liu Jiashu Chen Yan Luo Junpeng Ren Yahan Chen Zhengbing Yan Wenxuan Han Department of Ecology and Ecological Engineering College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province College of ForestrySichuan Agricultural UniversityChengdu 611130China Key Laboratory of Oasis Ecology of Education Ministry College of Ecology and EnvironmentXinjiang UniversityUrumqi 830017China Shaanxi Academy of Forestry Xi’an 710016China Institute of Botany Chinese Academy of SciencesBeijing 100093China

As a key functional trait affecting many physiological processes,leaf pH is closely related to other leaf traits at the local ***,whether and how leaf pH is linked with other leaf functional traits across geographic scales remains unclear.A field survey in northern China was conducted to investigate the relationships between leaf pH and some key leaf structural(specific leaf area,SLA;leaf dry matter content,LDMC)and chemical traits(elemental concentrations;total dissolved solids,TDS;practical salinity),as well as the effects of environmental factors on these *** results showed that the trait coordination may vary in degree or direction across eco-geographic regions(arid ***-arid regions)and life-forms(woody *** plants).Generally,leaf pH was negatively related to SLA,but positively related to TDS and ***,leaf pH and LDMC were negatively correlated in arid regions but positively correlated in non-arid regions;leaf pH covaried with N(similarly,with Ca,Mg and Na)in the same direction for both herbaceous and woody plants in arid regions,but not in non-arid *** factors mainly influenced the relationships of leaf pH with leaf Ca and Fe concentrations,while soil factors mostly affected those with leaf P,Ca and Mn *** findings highlight the divergent coordination between leaf pH and other leaf traits across life-forms and eco-geographic regions and may shed light on the in-depth understanding of the role of acid-base balance in plant eco-physiological processes and ecological adaptation over biogeographic scales.

关键词： arid and humid regions macro-ecology herbaceous and woody plants plant functional traits plant pH trait coordination trait coordinated relationships

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Contribution to the knowledge of the crane fly genus Helius(Diptera: Limoniidae) from Sichuan, China

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Zoological Systematics 2024年第4期49卷 331-342页

作者： Shuo Ma Yuanyuan Xu Tongle Xin Chang Liu Ding Yang Xiao Zhang Shandong Engineering Research Centerfor Environment-Friendly Agricultural Pest Management College of Plant Health and MedicineQingdao Agricultural UniversityQingdao 266109China Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety and National Demonstration Center for Experimental Plant Science Education Agricultural CollegeGuangxi UniversityNanning 530004China College of Plant Protection China Agricultural UniversityBeijing 100193China

Specimens of the crane fly genus Helius Lepeletier&Serville,1828 from Sichuan,China are examined and *** Helius species all belonging to the nominotypical subgenus are recognized,of which H.(H.)pallidissimoides Xu,Ma&Zhang,*** described and illustrated as new to science,and H.(H.)pallidissimus Alexander,1930 and H.(H.)franckianus Alexander,1940 are redescribed and *** the first time,descriptions and illustrations are provided for the male of H.(H.)pallidissimus and the female of H.(H.)franckianus.

关键词： Chinese fauna distribution Elephantomyini new species taxonomy

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Research progress of structural regulation and composition optimization to strengthen absorbing mechanism in emerging composites for efficient electromagnetic protection

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Journal of Materials Science & Technology 2025年第1期204卷 204-223页

作者： Pengfei Yin Di Lan Changfang Lu Zirui Jia Ailing Feng Panbo Liu Xuetao Shi Hua Guo Guanglei Wu Jian Wang College of Science Sichuan Agricultural UniversityYa’an 625014China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Institute of Physics&Optoelectronics Technology Baoji University of Arts and SciencesBaoji 721016China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072China

With the increasing complexity of the current electromagnetic environment,excessive microwave radi-ation not only does harm to human health but also forms various electromagnetic interference to so-phisticated electronic ***,the design and preparation of electromagnetic absorbing composites represent an efficient approach to mitigate the current hazards of electromagnetic ***,traditional electromagnetic absorbers are difficult to satisfy the demands of actual utilization in the face of new challenges,and emerging absorbents have garnered increasing attention due to their structure and performance-based *** this review,several emerging composites of Mxene-based,biochar-based,chiral,and heat-resisting are discussed in detail,including their synthetic strategy,structural superiority and regulation method,and final optimization of electromagnetic absorption *** insights provide a comprehensive reference for the future development of new-generation electromagnetic-wave absorption ***,the potential development directions of these emerging absorbers have been proposed as well.

关键词： Microwave absorption Structural regulation Performance optimization Emerging composites Synthetic strategy

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Hydrochar-embedded carboxymethyl cellulose-g-poly(acrylic acid)hydrogel as stable soil water retention and nutrient release agent for plant growth

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Journal of Bioresources and Bioproducts 2022年第2期7卷 34-45页

作者： Yufei Zhang Xinyue Tian Qiuyue Zhang Huifang Xie Bingyu Wang Yanfang Feng Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China Key Laboratory of Agro-Environment in Downstream of Yangtze Plain Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and EnvironmentJiangsu Academy of Agricultural SciencesNanjing 210014China

The cellulose-based hydrogel has been widely applied for soil water retention and nutrient re-lease agents for several *** the inorganic materials into hydrogels is an excellent strategy to improve the inherent limits of the cellulose-based ***,municipal sludge-derived hydrochar(HC)has reduced the environmental burden and offered a potential hydrogel carrier to control water-retention and ***,the above function for plant growth of hydrochar-embedded carboxymethyl cellulose-g-poly(acrylic acid)(CMC-g-PAA/HC)is unknown,and relevant reports are *** study investigated the water retention,nutri-ent release behavior,and effect of germination and plant growth of CMC-g-PAA/HC *** results showed that HC was successfully incorporated into CMC-g-PAA/HC with 6.0%higher thermostability,7.2-21.0%lower swelling ratio(SR)in water,and substantial SR in phosphate solution(P-solution).The water loss rate of CMC-g-PAA/HC in P-solution or wa-ter owned a more significant temperature response(7.9-15.0 folds)than CMC-g-PAA(8.2-10.0 folds).Moreover,4.0%higher n value and more 18.5%released P for CMC-g-PAA/HC were also *** phenomena were due to restricting the polymer chains movement and the wa-ter molecules diffusion inside the hydrogels with *** assessments showed that HC in CMC-g-PAA/HC could effectively alleviate the inhibition effects on rape germination retained with 78.3%germination vigor and 80.0%germination ratio,even dramatically improved plant growth to 28 *** results of this study demonstrated a new route for developing eco-friendly CMC-g-PAA/HC hydrogel,advantageous as a water retention agent and nutrient carrier in arid and semiarid regions.

关键词： Hydrogel Hydrochar Stable phosphorus-release Water retention Plant growth

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Roles of straw return in shaping denitrifying bacteria in rice rhizosphere soils through effects on root exudates and soil metabolites

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Soil Ecology Letters 2025年第1期7卷 39-51页

作者： Pei Chen Yu Cheng Ning Wang Jian-Guang Yu Ying Zhao Li-Hong Xue Key Laboratory of Agro-Environment in Downstream of Yangtze Plain Ministry of Agriculture and Rural Affairs of the People’s Republic of ChinaJiangsu Academy of Agricultural SciencesNanjing 210014China School of the Environment and Safety Engineering Jiangsu UniversityZhenjiang 212001China School of the Environment and Safety Engineering Jinan UniversityJinan 212001China School of Environmental Science and Engineering Yancheng Institute of TechnologyYancheng 224051China

Rhizosphere denitrification is affected by straw ***,the roles of root exudates and soil metabolites in shaping denitrifying bacteria under wheat straw return are relatively ***,wheat straw was amended at 2%(w/w)to two paddy soils with different levels of nitrogen for rice cultivation,which altered the denitrifying bacterial community compositions of both ***,straw amendment decreased the abundances of the nirS and nosZ genes by 63.7%and 30.3%in the low nitrogen soil from Taizhou(TZ)but increased the nirK,nirS,and nosZ gene abundances by 116%,81.0%,and 155.5%for the high nitrogen soil from Yixing(YX).Correspondingly,straw amendment decreased the relative abundance of root exudates in the categories of amino acids and benzenes for rice cultivated in TZ soil but increased the relative abundance of root exudates in the categories of amino acids for rice grown in YX *** elevated root exudates,straw amendment enhanced the relative abundances of many soil metabolites in YX soil such as sorbitol,myristic acid,and pentadecanoic acid,with fold changes>*** results suggest that straw return may alter the composition of root exudates and soil metabolites thereby affecting rhizosphere denitrifying bacterial communities and function genes.

关键词： straw return denitrifying bacteria soil organic carbon root exudates metabolites

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A Numerical Simulation Study of Temperature and Pressure Effects on the Breakthrough Pressure of CO_(2)in Unsaturated Low-permeability Rock Core

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Acta Geologica Sinica(English Edition) 2023年第3期97卷 911-924页

作者： HU Zhikai LI Yi LI Qi DIAO Yujie MA Xin LIU Hejuan FENG Guanhong WANG Fugang YU Qingchun Key Laboratory of Coast Civil Engineering Structure and Safety of Education Ministry School of Civil EngineeringTianjin UniversityTianjin 300350China State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan 430071China Key Laboratory of Carbon Dioxide Geological Storage Center for Hydrogeology and Environmental Geology SurveyChina Geological SurveyBaodingHebei 071051China Key Laboratory of Groundwater Resources and Environment(Jilin University) Ministry of EducationChangchun 130021China MOE Key Laboratory of Groundwater Circulation and Environmental Evolution China University of Geosciences(Beijing)Beijing 100083China

Gas breakthrough pressure is a key parameter to evaluate the sealing capacity of caprock,and it also plays important roles in safety and capacity of CO_(2)geological *** on the published experimental results,we present numerical simulations on CO_(2)breakthrough pressure in unsaturated low-permeability rock under 9 multiple P-T conditions(which can keep CO_(2)in gaseous,liquid and supercritical states)and thus,a numerical method which can be used to accurately predict CO_(2)breakthrough pressure on rock-core scale is *** simulation results show that CO_(2)breakthrough pressure and breakthrough time are exponential correlated with P-T ***,pressure has stronger effects on experimental results than that of ***,we performed sensitivity studies on the pore distribution indexλ(0.6,0.7,0.8,and 0.9)in van Genuchten-Muale *** show that with the increase ofλ,CO_(2)breakthrough pressure and breakthrough time both show decreasing *** other words,the larger the value ofλis,the better the permeability of the caprock is,and the worse the CO_(2)sealing capacity *** numerical method established in this study can provide an important reference for the prediction of gas breakthrough pressure on rock-core scale and for related numerical studies.

关键词： CO_(2)geological storage CO_(2)breakthrough pressure unsaturated low-permeability rock multiple P-T conditions numerical simulation

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