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Recycling of stainless steel pickling wastewater and polyethylene terephthalate plastic: A total-waste synthesis of metal-organic framework

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Progress in Natural Science:Materials International 2023年第4期33卷 478-485页

作者： Xudong Zhao Linshuai Zhang baosheng liu Chengwei Zhang Huifang Zhao Chong-Chen Wang Dahuan liu College of Chemical Engineering and Technology Taiyuan University of Science and Technology College of Materials Science and Engineering Engineering Research Center for Magnesium Alloy of Shanxi Province Taiyuan University of Science and Technology State Key Laboratory of Organic-Inorganic Composites College of Chemical Engineering Beijing University of Chemical Technology Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation Beijing University of Civil Engineering and Architecture

Metal-organic frameworks(MOFs) attract considerable interests in various fields while relatively high cost limits their industrial-level use. Herein, we proposed a total-waste preparation route for Fe/Cr-MIL-88B(MIL, Mat erial Institut Lavoisier), in which stainless steel pickling wastewater(PW) and waste polyethylene terephthalate(PET)act the total raw materials. Interestingly, PET is easily decomposed to terephthalic acid(H2BDC) under the strong acid environment of PW. Benefited from that, the formation of MOFs from PET and PW can be achieved via one-pot hydrothermal reaction, superior to the traditional two-step method. The obtained MIL-88B exhibits long-term acid/base stability and high removal efficiency for zirconium(Ⅳ) ion. Besides, the structure and adsorption performance of the products are not controlled by the discharge batch of the pickling wastewater, indicating the feasibility for continuous production in industry. Thus, our work provides a feasible route for preparing low-cost MOFs and recycling industrial wastes.

关键词： Metal-organic framework Industrial waste Resource recycle Adsorption

Effect of Three-High Rotary Piercing Process on Microstructure,Texture and Mechanical Properties of Magnesium Alloy Seamless Tube

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Acta Metallurgica Sinica(English Letters) 2024年第6期37卷 953-968页

作者： Xiaofeng Ding Zehao Wu Tong Li Jianxun Chen Yuanhua Shuang baosheng liu Heavy Machinery Engineering Research Center of Education Ministry Taiyuan University of Science and TechnologyTaiyuan030024China College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan030024China

Mg alloy seamless tubes(MASTs)were prepared through three-high rotary piercing process,effect of billet temperature,feed angle and plug advance on microstructure,texture and mechanical properties of tubes were *** effect on the deformation mechanism and improving mechanical properties mechanism of this process for MASTs were *** results show that the grain size could be refined to 11.3-31.1%of the initial grain size and the microstructure was more uniform due to the accumulation of *** formation of high strain gradient at the grain boundary activated the non-basal *** piercing process could change the grain orientation of as-extruded billet and eliminate the initial basal texture to produce new favorable *** the process could accelerate the continuous dynamic recrystallization *** piercing,yield strength of pierced tubes decreased by 6.7%,ultimate tensile strength(UTS)and elongation increased by 32.4 and 45%,respectively,at optimal *** plate-shapedβ_(1)-Mg_(17)Al_(12) orientation transformed from basal plates to prismatic plates,facilitating the increase in UTS and *** decrease size of nanoscale precipitates could reduce the cracking *** critical resolved shear stress ratios of pyramidal(10−11)slip and(11−22)slip to basal slip for the sample including prismatic plates both decreased compared to that including basal *** could enhance the ductility of tube ***,grain boundary sliding could contribute to a better ductility via coordinating deformation and reducing stress concentration during piercing process.

关键词： Mg alloy tube Rotary piercing Microstructure Texture Mechanical properties

A NEW EXPLICIT SIMULATION FOR MOULD FILLING WITH HIGH VISCOUS FEEDSTOCK

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Acta Mechanica Solida Sinica 2004年第4期17卷 347-352页

作者： Cheng Zhiqiang Barriere Thierry liu baosheng Gelin Jean Claude Department of Applied Mechanics Southwest Jiaotong UniversityChengdu 610031China LMARC University of Franche-Comte and CNRS24 Chemin de l’′epitapheBesancon 25000France

In the simulation of the metal injection moulding (MIM), the behaviours of feedstock are much di?erent from which of the polymer injection. It is a mixture of the metallic powder in high concentration and some plastic binder. The advance in simulation of the mould ?lling with such high viscous feedstock is featured by the development of a fully explicit vectorial algorithm. On the basis of previous explicit software realized by the authors, the new algorithm avoids the global solution for pressure ?elds and the use of MINI elements to improve its e?ciency. Except for the operations at element level, neither global solution nor the construction of global matrix is required in simulation. A special strategy is used to regulate the incompressibility condition in ?lled domain at each time step. In case of the MIM problems, this method provides a fast way to simulate the ?lling processes. The computational cost is about linearly proportional to the degree of freedom number. Moreover, this vectorial algorithm can be easily parallelized for high performance computation with multi-clusters. The comparison of numerical results with previous simulations on 3D cases proves the validity and e?ciency of new algorithm.

关键词： mould filling high viscosity explicit simulation vectorial algorithm

Phase evolution,hydrogen storage thermodynamics,and kinetics of ternary Mg_(98)Ho_(1.5)Fe_(0.5) alloy

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Journal of Rare Earths 2024年第9期42卷 1800-1808,I0006页

作者： Jinming liu Hui Yong Yang Zhao Shuai Wang Yiwan Chen baosheng liu Jifan Hu Yanghuan Zhang College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan030024China China Institute of Ocean Engineering(Tsing Tao) Qingdao266000China Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources Inner Mongolia University of Science and TechnologyBaotou014010China

Rare earth elements and transition metals have been found to improve the hydrogen storage characteristics of magnesium-based *** study investigated the Mg-Ho-Fe(MHF) ternary alloy prepared using the vacuum induction melting technique.X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),pressure-composition-temperature(PCT),and differential scanning calorimetry(DSC) were used to analyze the alloy's phase transitions,microstructure,thermodynamics,and kinetic *** results reveal that the Mg_(98)Ho_(1.5)Fe_(0.5) alloy forms a solid solution with Ho and Fe in the magnesium *** hydrogen absorption,the activated alloy transforms into a mixture of Mg/MgH_(2) phases and nanoscale HoH_(2) ***,only the MgH_(2) phase decomposes during hydrogen desorption,while the HoH_(2) phase remains unchanged,exhibiting a positive catalytic *** alloy demonstrates excellent hydrogen absorption kinetics,achieving a capacity of 5.56 wt% H_(2) within 10 min at 360℃,owing to the combined catalytic effects of Ho and *** activation energy for hydrogen desorption is found to be 135.87 kJ/mol,which is lower than that of the activation energies of pure MgH_(2) and MgFe alloys,indicating an enhancement in desorption ***,the enthalpy and entropy changes for hydrogen absorption and desorption are determined to be-70.51 kJ/mol H_(2),-125.62 J/(K·mol) H_(2),72.83 kJ/mol H_(2),and 128.95 J/(K·mol) H_(2),***,it is worth noting that the thermodynamic properties of the alloy are improved due to the catalytic effect of Ho and Fe.

关键词： Rare earths Magnesium-based hydrogen storage Hydrogen storage thermodynamics Hydrogen storage kinetics

Microstructures,corrosion behavior and mechanical properties of as-cast Mg-6Zn-2X(Fe/Cu/Ni)alloys for plugging tool applications

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International Journal of Minerals,Metallurgy and Materials 2024年第4期31卷 697-711页

作者： baosheng liu Jiali Wei Shaohua Zhang Yuezhong Zhang Pengpeng Wu Daqing Fang Guorui Ma School of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049China Intelligent Equipment Research and Development Center Zhuhai Institute of Advanced Technology Chinese Academy of SciencesZhuhai 519080China Advanced Materials Research Institute Zhuhai Dingmei Medical Technology Co.Ltd.Zhuhai 519000China

Mg-6Zn-2X(Fe/Cu/Ni)alloys were prepared through semi-continuous casting,with the aim of identifying a degradable magnesium(Mg)alloy suitable for use in fracturing balls.A comparative analysis was conducted to assess the impacts of adding Cu and Ni,which result in finer grains and the formation of galvanic corrosion *** electronic microscopy examination revealed that precipitated phases concentrated at grain boundaries,forming a semi-continuous network structure that facilitated corrosion penetration in Mg-6Zn-2Cu and Mg-6Zn-2Ni *** corrosion was observed in Mg-6Zn-2Fe,while galvanic corrosion was identified as the primary mechanism in Mg-6Zn-2Cu and Mg-6Zn-2Ni *** the tests,the Mg-6Zn-2Ni alloy exhibited the highest corrosion rate(approximately 932.9 mm/a)due to its significant potential *** testing showed that Mg-6Zn-2Ni alloy possessed suitable ultimate compressive strength,making it a potential candidate material for degradable fracturing balls,effectively addressing the challenges of balancing strength and degradation rate in fracturing applications.

关键词： magnesium alloys microstructure micro-galvanic corrosion mechanical properties

Modeling of maize gross primary production using MODIS imagery and flux tower data

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International Journal of Agricultural and Biological Engineering 2016年第2期9卷 110-118,I0004,I0005页

作者： Li Shihua He Ping liu baosheng Ni Ping Han Xing School of Resources and Environment University of Electronic Science and Technology of ChinaChengdu 611731China School of Resources and Environment Jilin Agricultural UniversityChangchun 130018China

Maize is one of the most important crops cultivated on the global *** estimation of maize Gross Primary Production(GPP)can provide valuable information for regional and global carbon budget *** site level to regional/global scales,GPP estimation depends on remote sensing or eddy covariance flux *** this research,the 8-day composite GPP of maize was estimated by Moderate Resolution Imaging Spectroradiometer(MODIS)and flux tower data at eight study sites using a Regional Production Efficiency Model(REG-PEM).The performance of the model was assessed by analyzing the linearly regression of GPP estimated from the REG-PEM model(GPPEST)with the GPP predicted from the eddy covariance data(GPPEC).The coefficient of determination,root mean squared error and mean absolute error of the regression model were *** uncertainties of the model are also discussed in this *** seasonal dynamics(phases and magnitudes)of the GPPEST reasonably agreed with those of GPPEC,indicating the potential of the satellite-driven REG-PEM model for up-scaling the GPP in maize ***,the maize GPP estimated by this model is more accurate than the MODIS GPP products(MOD17A2).In particular,MOD17A2 significantly underestimated the GPP of maize *** uncertainties in the REG-PEM model are mostly contributed by the maximum light use efficiency and the fraction of photosynthetically active radiation.

关键词： gross primary production maize light use efficiency MODIS remote sensing flux datagross primary production maize light use efficiency MODIS remote sensing flux data

Effective and irreversible removal of radioactive barium ions in MOF-808 framework functionalized sulfonic acid groups

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Green Chemical Engineering 2022年第4期3卷 405-412页

作者： Xudong Zhao Lei Pei Ya-Nan Zhang Hongliang Huang Xiuhong Zheng baosheng liu Minman Tong School of Chemical and Biological Engineering Taiyuan University of Science and TechnologyTaiyuan030024China College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan030024China Engineering Research Center for Magnesium Alloy of Shanxi Province Taiyuan030024China School of Chemistry and Chemical Engineering Tiangong UniversityTianjin300387China School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhou221116China

The simultaneous high-capacity and fast removal of radioactive barium ion(Ba^(2+))from nuclear wastewater is necessary but still faces large *** this study,a novel adsorbent containing sulfonic group,MOF-808-SO_(3)H,was prepared based on the oxidation of-SH *** confirm the successful introduction of-SO_(3)H,good porosity,and stability of the *** adsorbent exhibits excellent capture ability for Ba^(2+)due to strong hard acid-base and electrostatic interactions,with the adsorption capacity of 152.0 mg g^(-1)and fast equilibrium adsorption time,superior to other reported *** pH was found to be almost neutral and temperature cannot affect the adsorption ***,the irreversible adsorption was demonstrated and thereby the secondary pollution may be ***,our work provides an efficient adsorbent for capturing Ba^(2+)irreversibly,and proposes a feasible strategy for constructing adsorbents with simultaneous high adsorption capacity and fast kinetics.

关键词： Metal-organic framework Sulfonic group Barium ion Irreversible adsorption Fast kinetics

双荧光剂荧光光度法研究与应用——四溴荧光素·丁基罗丹明B体系

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光谱学与光谱分析 1999年第3期19卷 490-492页

作者：刘保生河北大学理化分析中心

向离子缔合物ＧａＣｌ４ＢＲＢ（ＢＲＢ是丁基罗丹明Ｂ）的甲苯萃取液中，加入ｐＨ＝８．７的ＮａＯＨ－ＫＨ２ＰＯ４缓冲溶液，离子缔合物解析后ＢＲＢ进入水相。向其中加入与ＢＲＢ颜色相近的四溴荧光素（ＴＢＦ），形成的ＢＲＢ２Ｔ... 详细信息

向离子缔合物ＧａＣｌ４ＢＲＢ（ＢＲＢ是丁基罗丹明Ｂ）的甲苯萃取液中，加入ｐＨ＝８．７的ＮａＯＨ－ＫＨ２ＰＯ４缓冲溶液，离子缔合物解析后ＢＲＢ进入水相。向其中加入与ＢＲＢ颜色相近的四溴荧光素（ＴＢＦ），形成的ＢＲＢ２ＴＢＦ再被甲苯萃取，萃取液中加入正丁醇（甲苯：正丁醇＝１１）。因萃取液中ＢＲＢ２ＴＢＦ［１］的双荧光剂协同作用，提高了测定镓的灵敏度。

关键词：镓丁基罗丹明B 四溴荧光素萃取荧光法测定

Effect of aluminum on microstructure and magnetic properties of sintered Nd-Fe-B magnets processed by grain boundary diffusion of Tb-Al

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Journal of Rare Earths 2023年第5期41卷 705-712,I0003页

作者： Tinghui Wang Zhaokun Ma Qihang Zhu Lijing Yang baosheng liu Yu Zhao Cheng Xu Bizhang Zheng Fangqin Hu Jianzhong Li Qingfang Huang Zhenlun Song CAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application TechnologyNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Baotou Hidyree Technology Co. Ltd.Baotou 014030China Hangzhou Permanent Magnet Group Co. Ltd.Hangzhou 311231China Ningbo Permanent Magnetics Co. Ltd.Ningbo 315201China Fujian Key Laboratory for Rare Earth Functional Materials Longyan 366300China

The grain boundary diffusion process(GBDP)of Tb can improve the coercivity of sintered Nd-Fe-B *** this study,the effect of AI on the diffusion of Tb in the GBDP was *** content of diffused Tb-Al was precisely controlled by adjusting the magnetron sputtering *** Tb equivalent of Al was also *** show that AI promotes the diffusion of Tb deeper into the magnet,reducing the thickness of the shell in the core-shell *** study is helpful for further developing the process,reducing the consumption of heavy rare earth elements(Tb),and improving the coercivity of sintered Nd-Fe-B magnets.

关键词： Sintered Nd-Fe-Bmagnet Heavy rare earth elements Grain boundary diffusion process Coercivity