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

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

Ce-β-Bi2O3/AgI was prepared using solvothermal calcination and in-situ deposition *** introduction of Ce can inhibit the conversion of Bi2O3from β to α phase at high temperatures,promoting the formation of oxygen vacancies（OVs） in the *** can adsorb more dissolved oxygen to promote the formation rate of ·O2-.Moreover,the interaction between Ce-Bi2O3and 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 environme ntal remediation applications.

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Ti-MOF Derived N-Doped TiO2 Nanostructure as Visible-light-driven Photocatalyst

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Chemical Research in Chinese Universities 2020年第3期36卷 447-452页

作者： HE Yilei ZHANG Xing WEI Yanze CHEN Xiaoyu WANG Zumin YU Ranbo Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversiw of Science and Technology BeijingBeijing 100083P.R.China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China Key Laboratory of Advanced Material Processing&Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002P.R.China

Nanostructured N-doped TiO2 photocatalyst has been prepared via a new approach from Ti-based MOF[NH2-MIL-125(Ti)]*** success of N doping enhances light absorption and narrows the ***,the as-prepared nanostructure is constructed with tiny nanoparticles and resembles a pie-like morphology inherited from the MOF,which accelerates electron ***,as a photocatalyst for the degradation of methylene blue(MB)under visible light irradiation,the N-doped TiO2(N-TiO2)nanostructure shows higher photocatalytic activity with a reaction rate constant of 0.018min^-1 than that of the TiO2-P25 and TiO2 under the visible light.

关键词： TiO2 Mctal-organic framcwork Photo-degradaton N doped Visible-light photocatalysis

High Temperature Shock Synthesis of Superfine Ru Nanoparticles Anchored on TiO2@Nitrogen-Doped Carbon for Ph-Universal Hydrogen Evolution Reaction

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SSRN 2023年

作者： Cai, Jinxiu Zong, Lingbo Fan, Kaicai Song, Fuxiang Gao, Jianyang Wang, Zumin Chen, Yanan Wang, Lei Key Laboratory of Eco-chemical Engineering College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao266042 China College of Materials Science and Engineering Qingdao University of Science and Technology Qingdao266042 China College of Chemical Engineering Qingdao University of Science and Technology Qingdao266042 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences 1 North 2nd Street Zhongguancun Haidian District Beijing100190 China School of Materials Science and Engineering Tianjin University Tianjin300072 China

Due to energy crisis and environmental pollution, it is urgent to develop efficient and cheap catalysts for hydrogen production from water electrolysis. As a cheaper platinum group metal, Ru, a cheaper platinum group metal, is a highly competitive candidate to Pt because of the similar bond energy of M-H. Herein, TiO2@nitrogen-doped carbon composite supported superfine Ru nanoparticles was synthesized by high temperature shock in a Joule furnace using Ti-MOF support (Ru/TiO2@NC-J). In the extremely rapid process, MOF was quickly converted into highly conductive nitrogen-doped carbon with tiny TiO2 dispersed in it, and superfine Ru nanoparticles were generated simultaneously in less than 0.5 s. The obtained Ru/TiO2@NC-J displays wonderful HER performance in the wide pH range. In 1.0 M KOH solution, the overpotential was as low as 11 mV at 10 mA cm-2 and a Tafel slope was 36.8 mV dec-1, which far exceeded the activity of Pt/C and conventional calcined samples as well as most of the recently reported catalysts. The as-developed electrocatalysts also showed excellent stability to accommodate large working current for long term test without obvious activity loss in universal pH range. Experimental investigations suggest that the strong metal-support interaction dominantly facilitate the activity of electrocatalytic hydrogen evolution reaction (HER), and stability of Ru/TiO2@NC-J. This strategy provides a new and super-fast methodology to prepare low-budget and high-performance HER catalysts for practical applications. © 2023, The Authors. All rights reserved.

关键词： Electrocatalysts

In-Situ Fabrication Sns2/Sno2 Heterostructures for Boosting the Formaldehyde Sensing Properties at Room Temperature

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SSRN 2023年

作者： Meng, Dan Xie, Zongsheng Wang, Mingyue Xu, Juhua San, Xiaoguang Qi, Jian Zhang, Yue Wang, Guosheng Jin, Quan College of Chemical Engineering Shenyang University of Chemical Technology Shenyang110142 China Innovation Campus University of Wollongong Squires Way North WollongongNSW2500 Australia School of Materials Science and Engineering Jilin University Changchun130022 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Formaldehyde, as a harmful gas produced in the process of decoration, has a serious impact on human health, and is also the focus and difficulty of indoor environmental pollution prevention. Hence, designing and developing gas sensors for selective measurement of formaldehyde at room temperature is an urgent task. Herein, a series of SnS2/SnO2 composites with hollow spherical structures were prepared by a facile hydrothermal approach for the purpose of formaldehyde sensing at room temperature. These novel hierarchical structure SnS2/SnO2 composites-based gas sensors demonstrate remarkable selectivity towards formaldehyde within the concentration range of sub-ppm (0.1 ppm) to ppm (10 ppm) at room temperature. Notably, the SnS2/SnO2-2 sensor exhibits exceptional formaldehyde-sensing performance, featuring an ultra-high response (1.93, 0.1 ppm, and 17.51, 10 ppm), as well as good repeatability and long-term stability and outstanding theoretical detection limit. The superior sensing capabilities of the SnS2/SnO2 composites can be attributed to multiple factors, including enhanced formaldehyde adsorption, larger specific surface area and porosity of the hollow structure, as well as the synergistic interfacial incorporation of the SnS2/SnO2 heterojunction. Overall, the excellent gas sensing performance of SnS2/SnO2 hollow spheres has opened up a new way for their detection of trace formaldehyde at room temperature. © 2023, The Authors. All rights reserved.

关键词： Room temperature

Highly Efficient and Economical One-Pot Two-Step Multienzymatic Synthesis of 6'/3'-Sialyllactosamine from In Situ-Produced N-Acetyllactosamine

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Journal of agricultural and food chemistry 2025年第23期73卷 2025 May 29页

作者： Runmiao Jiao Xinlv Peng Bing Wang Yuguang Du Eika W Qian Jianjun Li Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and Technology Nakacho 2-24-16 Koganei Tokyo 1848588 Japan. State Key Laboratory of Biopharmaceutical Preparation and Delivery Institue of Process Engineering Chinese Academy of Sciences Beijing 100190 China. School of Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 China. Gulbali Institute for Agriculture Water and Environment Charles Sturt University Wagga Wagga 2678 New South Wales Australia. Innovation Academy for Green Manufacture Institute Institue of Process Engineering Chinese Academy of Sciences Beijing 100190 China.

Among over 200 human milk oligosaccharides, 6'-SLN (6'-sialyl--acetyllactosamine) and 3'-SLN possess potential antiviral function and can potentially enhance brain development and knowledge. So far, no efficient and cost-effective synthetic pathways for 6'-SLN and 3'-SLN have been developed. In this study, efficient enzymatic pathways to synthesize 6'-SLN and 3'-SLN were established involving economic cytidine 5'-triphosphate (CTP) regeneration from commercial -acetyllactosamine (LacNAc) with yields of >95%. To meet the requirement of industrial production, their synthesis was further optimized starting from in situ-produced LacNAc. Consequently, the cost of LacNAc purification could be saved. Furthermore, conducting synthesis at pH 7.0 and with supplementation of polyP in three batches led to yields of 6'-SLN (95.0%) and 3'-SLN (94.8%), respectively. Under optimized conditions, enzymatic syntheses of 6'-SLN and 3'-SLN were conducted at a 5 L scale with yields of 96.1% (259.2 g) and 92.3% (248.7 g), respectively. This study would lay the foundation for industrial production of 3'-SLN and 6'-SLN in the future and provide a guide for multienzymatic preparation of other sialylated oligosaccharides.

关键词： 3′-sialyl-N-acetyllactosamine 6′-sialyl-N-acetyllactosamine human milk oligosaccharides optimization scale-up

Nanostructured BiVO4 Derived from Bi-MOF for Enhanced Visible-light Photodegradation

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Chemical Research in Chinese Universities 2020年第1期36卷 120-126页

作者： CHEN Jianfei CHEN Xiaoyu ZHANG Xing YUAN Yao BI Ruyi YOU Feifei WANG Zumin YU Ranbo Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083P.R.China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China Key Laboratory of Advanced Material Processing&Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002P.R.China

BiVO4,a promising visible-light responding photocatalyst,has aroused extensive research interest because of inexpensiveness and excellent chemical ***,its main drawback is the poor photoinduced charge-transfer *** nanostructures is an effective way to tackle this ***,we put forward a new method to prepare nanostructured BiVO4 from Bi-based metal-organic frameworks[Bi-MOF(CAU-17)]*** as-prepared material has a rod-like morphology inherited from the Bi-MOF sacrificial template and consists of small nanoparticle as building *** with its counterparts prepared by conventional methods,MOF-derived nanostructured BiVO4 shows better light absorption ability,narrower bandgap,and improved electrical conductivity as well as reduced ***,BiVO4 nanostructure demonstrates high photocatalytic activity under visible light towards the degradation of methylene *** blue can be degraded up to 90%within 30 min with a reaction rate constant of 0.058 ***,the cycling stability of the catalyst is excellent to withstand unchanged degradation efficiency for at least 5 cycles.

关键词： BiVO4 Nanostructure Metal-organic framework Ternary metal oxide Photocatalysis

Phase Reconstruction and Microstructure Evolution of Magnesia-carbon Refractories at High Temperatures in Nitrogen

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China's Refractories 2022年第3期31卷 14-23页

作者： YAN Mingwei YANG Yumin TONG Shanghao ZHANG Jiayu SUN Guangchao LIU Kaiqi State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Nanjing IPE Institute of Green Manufacturing Industry Nanjing 211135China AVIC Tianshui New&High Abrasives Co. Ltd.Tianshui 741024China Luoyang Lirr Functional Materials Co. Ltd.Luoyang 471039China

Magnesia-carbon refractories were prepared using fused magnesia,flake graphite and metal aluminum powder as starting materials,phenolic resin as the binder,heat-treating at 1300-1600℃in nitrogen *** phase reconstruction and the microstructure evolution of the obtained magnesia-carbon refractories were *** formation mechanisms of magnesia crystals with different morphologies by chemical vapor deposition were *** results show that at 1300-1500℃,the non-oxides within the specimens are aluminum carbide(Al_(4)C_(3)),aluminum nitride(AlN)and magnesium aluminum nitride(Mg_(3)Al_(n)N_(n+2),n=2 or 3);at 1600℃,the diffraction characteristic peak intensity of Al_(4)C_(3) and AlN decreases sharply,and sharp diffraction characteristic peaks of nitrogen aluminum carbide(Al_(7)C_(3)N_(3))***(g)is produced by the aluminothermic reduction and carbothermal reduction of *** the surface of the specimens,Mg(g)reacts with oxygen to form MgO *** the specimens,Mg(g)and O_(2)(g)undergo a CVD chemical deposition reaction to form cubic MgO *** is a phase relationship between flake AlN and flake Mg3AlnNn+2,and they are so associated with each other that the morphology is difficult to distinguish.

关键词： magnesia-carbon refractory phase reconstruction microstructure non-oxide magnesia

Modulator Directed Synthesis of Size-Tunable Mesoporous Mofs and Their Derived Nanocarbon-Based Electrocatalysts for Oxygen Reduction

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SSRN 2024年

作者： Zhang, Hongjuan Li, Ziruo Zhao, Yingji Ge, Jianping Tang, Jing Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai200062 China Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku Tokyo169-8555 Japan State Key Laboratory of Petroleum Molecular and Process engineering SKLPMPE Sinopec research institute of petroleum processing Co. LTD. Beijing100083 China East China Normal University Shanghai200062 China Institute of Eco-Chongming Shanghai202162 China

Although MOF-derived carbon materials have been widely used for electrocatalysis, it is challenging to prepare size-tunable MOF precursors through simple modulation. In this work, a series of mesoporous MOF (PCN-224) with a wide tunable particle size from micro- to nanoscale were successfully by in-situ introduction of 3-mercaptopropionic acid as the modulator during synthesis. After carbonization and acid etching, the derived carbons (MAx-NC) inherit the mesoporous structure and exhibit uniform particles ranging from 30 to 900 nm. MAx-NC were used as model catalysts to explore the size effects on electrocatalysis. Considering the similar compositional and structural properties, the best electrochemical performance of MA3-NC (~300 nm) can be ascribed to the mediate particle sizes, which would not only provide more accessible active sites but also create large interspaces between the particles for fast mass transport. Moreover, suitable Fe was introduced into the optimized MAx-NC, which shows comparable half-wave potential and better stability than commercial Pt/C for the typical oxygen reduction reaction. This work provides an efficient "modulation" strategy for preparing size-tunable mesoporous MOF cubes and their carbon derivative, paving a new way to customize nanosized MOFs for wider applications. © 2024, The Authors. All rights reserved.

关键词： Electrocatalysis

Eco−Friendly Recycling of Silicon−Rich Lye: Synthesis of Hierarchically Structured Calcium Silicate Hydrate and its Application for Phosphorus Removal

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SSRN 2022年

作者： Qi, Fang Zhu, Ganyu Zhang, Yimin Li, Huiquan Li, Shaopeng Yang, Chennian Zhang, Jianbo College of Resources and Environmental Engineering State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control Wuhan University of Science and Technology Hubei Province Wuhan430081 China Key Laboratory of Green Process and Engineering National Engineering Research Center of Green Recycling for Strategic Metal Resources Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Silicon−rich lye (SRL), a byproduct generated from pre−treatment of coal−based solid waste (CSW), was considered as a preponderant silicon source to prepare hierarchically nanostructured calcium silicate hydrate (C−S−H). Through the novel mild−causticization synthesis strategy, C−S−H was prepared under optimal caustic process conditions at time of 3 h, temperature of 80°C, Ca/Si of 1.25:1, and active CaO to obtain a conversion rate of Si up to 97.33% during the high−value utilization of SRL. The synthesized C−S−H possesses abundant mesoporous structure and massive exchangeable active sites, whose formation in C−S−H is advanced through an appropriate elevation regulation of caustic temperature and time. The adsorption capacity up to 119.27 mg/g for C−S−H presents outstanding removal performance toward phosphorus in the industrial wastewater than massive other previous reports. The removal mechanism of phosphorus can be identified as the surface chemisorption and formation of calcium phosphate co−precipitation. This study can provide considerable and potential guidance to the coordinated disposal between industrial solid wastes and wastewater purification. © 2022, The Authors. All rights reserved.

关键词： Phosphorus

A New Facile Strategy for Addressing the Localized Corrosion Issue at Damaged Coating Via a Wind-Driven Triboelectric Nanogenerator

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SSRN 2024年

作者： Liu, Chaoyang Cui, Siwen Li, Ruili Ai, Wenying Guan, Xiaoyan Li, Lanxiang Wang, JunPeng Wang, Daoai School of Material and Chemical Engineering Center for Advanced Materials Research Zhongyuan University of Technology Zhengzhou450007 China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou730000 China Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341000 China National Engineering Research Center of Green Recycling for Strategic Metal Resources Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Metal substrate at the damaged coating, exposed directly to the corrosive medium, is susceptible to the localized corrosion, due to the formation of occluded corrosion cells. Herein, a new facile strategy for addressing the localized corrosion issue at damaged coating using a triboelectric nanogenerator (TENG) was proposed. The wind-driven TENG with a simple double-layer structure was designed. The output performance of the TENG can be controlled by adjusting structural parameters and the wind speeds, with the maximum short circuit current, output voltage and corresponding power reaching approximately 102.5 mA, 814 V and 7.6 mW, respectively, at a wind speed of 7.5 m/s. The electrons generated by the TENG can be transferred to the metal substrate at the damaged coating, inducing the cathodic polarization of the metal and providing effective cathodic protection. The reduction reaction, with the consumption of O2 and the formation of OH-, occurs at the metal substrate at the damaged coating. A protective local environment is created by the combination of increased pH and removal of Cl- under the electric field of the TENG. To evaluate the corrosion behavior, immersion experiments and electrochemical measurements were conducted in 3.5 wt% NaCl when the Q235 steels covered the damaged coating were coupled with and without the wind-driven TENG at different wind speeds. Meanwhile, the influence of TENG's output performance on the cathodic protection effect for the metal substrate at the damaged coating is discussed. This study expands the application of the TENG in the field of corrosion resistance. © 2024, The Authors. All rights reserved.

关键词： Corrosion resistance