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Facile synthesis of enzyme functional metal-organic framework for colorimetric detecting H_2O_2 and ascorbic acid

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Chinese Chemical Letters 2017年第5期28卷 1006-1012页

作者： Cunji Gao hongmei zhu Jia Chen Hongdeng Qiu Key Laboratory of Chemistry of Northwestern Plant Resources Key Laboratory for Natural Medicine of Gansu ProvinceLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Institute of Microbiology and Biochemical Pharmacy School of PharmacyLanzhou University

In this work,a metal-organic frameworks material MIL-88 was prepared easily using solvent-thermal method,and was first found to have catalytic activities similar to those of biological enzymes such as catalase and *** material was characterized by XRD,SEM,TEM,EDX,FT-IR techniques and an N2 adsorption *** exhibited peroxidase-like activity through catalytic oxidation of the peroxidase substrate 3,3＇,5,5＇-tetramethylbenzidine（TMB） in the presence of H2O2,producing a blue-colored *** optimal conditions,the absorbance at 652 nm is linearly correlated with the concentration of H2O2 from 2.0×10^-6 mol/L to 2.03×10^-5 mol/L（R-2=0.981） with a detection limit of 5.62×10^-7 mol/L（S/N=3）.More importantly,a sensitive and selective method for ascorbic acid detection was developed using this material as a *** analytical method for ascorbic acid detection was observed to have a linear range from 2.57×10^-6 mol/L to 1.01×10^-5 mol/L（R-2=0.989） with a detection limit of 1.03×10^-6 mol/L（S/N=3）.This work suggests MOFs have advantages of preparing biomimetic catalysts and extends applications of the functional MOFs in the field of biosensor.

关键词： Metal-organic frameworks Horseradish peroxidase H2O2 Ascorbic acid Colorimetric detection Biomimetic catalyst

Study on HCI removal for medical waste pyrolysis and combustion using a TG-FTIR analyzer

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Frontiers of Environmental Science & Engineering 2015年第2期9卷 230-239页

作者： hongmei zhu Weiying CHEN Xuguang JIANG Jianhua YAN Yong CHI College of Automation Hangzhou Dianzi University Hangzhou 310018 China Hangzhou Boiler Group Co. Ltd. Hangzhou 310021 China State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310013 China

Under both pyrolysis and combustion condition, HCl removal efficiency for medical waste with Cabased additives was semi-quantitatively studied by means of TG-FTIR. Additionally, the difference of HCl removal efficiency for PVC and medical waste was compared. Experimental results showed that： 1） Thermal degradation of medical waste mainly took place in two steps under both pyrolysis and combustion condition; 2） HC1 emitted at both two steps and HCl concentration increased with the increased of Cl ratio in the medical waste; 3） for the same additive, HCI concentration decreased with the increased of additives amount, that is to say, HCI removal efficiency of medical waste increased as the increased of Ca/Cl molar ratio. Fourth, when Ca（OH）2 was used as additive, HCl removal efficiency for medical waste combustion was a little higher than that for medical waste pyrolysis, but either CaCO3 or CaO was used as additive, it was just opposite, more specifically, when CaCO3 was used as additive with Ca/CI= 1.3, HC1 removal efficiency was 5.49% under pyrolysis condition, but that was only 4.24% under combustion condition. Fifth, under the same Ca/CI molar ratio, HCl removal efficiency for PVC was higher than that for medical waste under both pyrolysis and combustion condition, more specifically, when Ca（OH）2 was used as additive with Ca/Cl-1, HCl removal efficiency was 64.51% for PVC, but that was only 27.66% for medical waste pyrolysis with 4% Cl under pyrolysis condition .

关键词： pollution medical waste pyrolysis combustion TG-FTIR HCl removal

Thermogravimetric coupled with Fourier transform infrared analysis study on thermal treatment of monopotassium phosphate residue

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Frontiers of Environmental Science & Engineering 2011年第2期5卷 186-192页

作者： Yuheng FENG Xuguang JIANG Yong CHI Xiaodong LI hongmei zhu State Key Laboratory of Clean Energy Utilization Zhejiang UniversityHangzhou 310027China Hangzhou Huanjie Environment Engineering Co.Ltd. Hangzhou 310027China

In China,safe disposal of hazardous waste is more and more a necessity,urged by rapid economic *** pyrolysis and combustion characteristics of a residue from producing monopotassium phosphate(monopotassium phosphate residue),considered as a hazardous waste,were studied using a thermogravimetric,coupled with Fourier transform infrared analyzer(TGFTIR).Both pyrolysis and combustion runs can be subdivided into three stages:drying,thermal decomposition,and final *** average weight loss rate during fast thermal decomposition stage in pyrolysis is higher than *** acid,methane,pentane,(acetyl)cyclopropane,2,4,6-trichlorophenol,CO,and CO_(2) were distinguished in the pyrolysis process,while CO_(2) was the dominant combustion product.

关键词： hazardous waste combustion pyrolysis thermogravimetric coupled with Fourier transform infrared analysis(TG-FTIR) monopotassium phosphate residue

Acid-catalyzed chemodivergent reactions of 2,2-dimethoxyacetaldehyde and anilines

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Chinese Chemical Letters 2021年第4期32卷 1419-1422页

作者： Luxia Guo Zihao Chen hongmei zhu Minghao Li Yanlong Gu Huazhong University of Science and Technology Hubei Key Laboratory of Material Chemistry and Service FailureWuhan 430074China State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical PhysicsLanzhou 730000China The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi UniversityShihezi 832004China

Chemodivergent reactions of 2,2-dimethoxyacetaldehyde and anilines were described,which were established on the basis of either a C—C bond cleavage or a rearrangement process of a reaction inte *** reactions proceeded in a condition-determined manner with good functional group *** the first model,2,2-dimethoxyacetaldehyde reacted with aniline to form a new C—N bond,in the presence of O_(2),via a C—C bond cleavage ***,in the second model,by performing the reaction in the absence of O_(2),Heyns rearrangement occurred and generated a new C—O bond to form methyl *** condition-determined reactions not only offered the new way for valueadded conversion of biomass-derived platform molecule,2,2-dimethoxyacetaldehyde,but also provided efficient methods for the synthesis of N-arylformamides and methyl phenylglycinates.

关键词： Condition-determined reaction Chemodivergent reaction 2 2-Dimethoxyacetaldehyde C-C bond cleavage Heyns rearrangement

Distributed Application Addressing in 6G Network

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China Communications 2024年第4期21卷 193-207页

作者： Liu Jie Chen Sibo Liu Yuqin Mo Zhiwei Lin Yilin zhu hongmei He Yufeng China Telecom Research Institute Guangzhou 510632China

To ensure the extreme performances of the new 6G services,applications will be deployed at deep edge,resulting in a serious challenge of distributed application *** paper traces back the latest development of mobile network application addressing,analyzes two novel addressing methods in carrier network,and puts forward a 6G endogenous application addressing scheme by integrating some of their essence into the 6G network architecture,combining the new 6G capabilities of computing&network convergence,endogenous intelligence,and communication-sensing *** paper further illustrates how that the proposed method works in 6G networks and gives preliminary experimental verification.

关键词： application addressing CNC(Computing&Network Convergence) DNS(Domain Name System) ICN(Information-Centric Network) 6G

Evaporated potassium chloride for double-sided interfacial passivation in inverted planar perovskite solar cells

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Journal of Energy Chemistry 2021年第3期30卷 493-500页

作者： Shasha Zhang Xiaobo Yan Zonghao Liu hongmei zhu Zhichun Yang Yuqian Huang Sanwan Liu Di Wu Ming Pan Wei Chen Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074HubeiChina China-EU Institute for Clean and Renewable Energy Huazhong University of Science and TechnologyWuhan 430074HubeiChina Shenzhen Key Laboratory of Nanobiomechanics Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450001HenanChina

Defect-induced charge carrier recombination at the interfaces between perovskite and adjacent charge transport layers restricts further improvements in the device performance of perovskite solar cells(PSCs).Defect passivation at these interfaces can reduce trap states and inhibit the induced nonradiative ***,we report a double-sided interfacial passivation via simply evaporating potassium chloride(DIP-KCl)at both the hole transport layer(HTL)/perovskite and perovskite/electron transport layer(ETL)interfaces in inverted planar *** demonstrate that the bottom KCl layer at the HTL/perovskite interface not only reduces the interfacial defects and improves the interfacial contact,but also leads to increased perovskite crystallinity,while the top KCl layer at the perovskite/ETL interface efficiently passivates the perovskite top surface defects and facilitates electron extraction at this ***,suppressed nonradiative recombination and faster charge extraction at both interfaces close to the perovskite layer can be achieved by using our DIP-KCl *** a result,inverted PSCs based on DIP-KCl present an increased efficiency from 17.1% to 19.2% and enhanced stability,retaining over 90% of their initial efficiency after aging at maximum power point tracking for 1000 *** work provides a simple and efficient way for defect passivation to further increase the efficiency and stability of PSCs.

关键词： Double-sided interfacial passivation KCl Defect passivation Nonradiative recombination Perovskite solar cells

Strong circularly polarized luminescence from quantum dots/2D chiral perovskites composites

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Nano Research 2023年第5期16卷 7593-7599页

作者： Qingqian Wang hongmei zhu Wei Chen Junjie Hao Zhaojin Wang Jun Tang Yingguo Yang Xiao Wei Sun Dan Wu Kai Wang Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518055China College of Engineering Physics Shenzhen Technology UniversityShenzhen 518118China College of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118China Shanghai Advanced Research Institute Chinese Academy of ScienceShanghai 201210China

Chiral perovskites(CPs)have attracted enormous attentions since they have combined chirality and optoelectrical properties well which is promising in circularly polarized luminescence(CPL)application and of great importance for future ***,there is a key contradiction that in chiral perovskites chirality distorts the crystal structure,leading to poor photoluminescence(PL)*** the balance between chirality and PL is a major challenge for strong CPL from chiral ***,two-dimensional(2D)chiral perovskite has shown fascinating chiral induced spin selectivity(CISS)effect which can act as spin injector under ambient ***,we propose an effective strategy to achieve high CPL activity generated from quantum dots(QDs)by introducing 2D chiral perovskite as a chiral source,providing spin polarized carriers through the CISS *** as-synthesized QDs/CP composites exhibit dissymmetry factors(glum)up to 9.06×10^(−3).For the first time,we performed grazing incident wide angle X-ray scattering(GIWAXS)measurements,showing the chirality originates from the distorted lattices caused by the large chiral organic ***,time-resolved PL(TR-PL)measurements verify the enhanced CPL activity should be attributed to the charge transport between two *** findings provide a useful method to achieve CPL in QDs/2D chiral perovskite heterojunctions which could be promising in spinoptoelectronics application.

关键词： circularly polarized luminescence colloidal quantum dots two-dimensional(2D)chiral perovskites grazing incident wide angle X-ray scattering(GIWAXS) chiral induced spin selectivity

Clinical Practice Examples of Dachaihu Decoction

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Chinese Medicine 2013年第2期4卷 37-40页

作者： hongmei zhu Department of Chinese Medicine Medical School Xiamen University Xiamen China

This paper mainly describes the experiences of clinical application of Dachaihu Decoction in treating chronic pelvic infection, coronary heart disease, insomnia, and hepatolithiasis.

关键词： Dachaihu Decoction Coronary Heart Disease Insomnia Chronic Pelvic Infection Hepatolithiasis

Simultaneous adsorption of lead and cadmium on MnO_2-loaded resin

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Journal of Environmental Sciences 2010年第2期22卷 225-229页

作者： Lijing Dong,Zhiliang zhu,hongmei Ma,Yanling Qiu,Jianfu ZhaoState Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092,China [a] State Key Laboratory of Pollution Control Resource Reuse Tongji University Shanghai 200092 China

MnO2-10aded D301 weak basic anion exchange resin has been used as adsorbent to simultaneously remove lead and cadmium ions from aqueous solution. The effects of adsorbent dosage, solution pH and the coexistent ions on the adsorption were investigated. Experimental results showed that with the adsorbent dosage more than 0.6 g/L, both Pb^2＋ and Cd^2＋ were simultaneously removed at pH range 5-6. Except for HPO4^2-, the high concentration coexistent ions such as Na^＋, K^＋, Cl^-, NO3^-, SO4^2- and HCO3^-, showed no significant effect on the removal efficiency of both Pb^2＋ and Cd^2＋ under the experimental conditions. The coexistence of Mg^2＋, Ca^2＋ caused the reduction of Cd^2＋ removal, but not for Pb^2＋. The adsorption equilibrium for Pb^2＋ and Cd^2＋ could be excellently described by the Langmuir isotherm model with R^2 〉 0.99. The maximum adsorption capacity was calculated as 80.64 mg/g for Pb^2＋ and 21.45 mg/g for Cd^2＋. The adsorption processes followed the pseudo first-order kinetics model. MnO2-loaded D301 resin has been shown to have a potential to be used as an effective adsorbent for simultaneous removal of lead and cadmium ions from aqueous solution.

关键词： MnO2-loaded resin adsorption cadmium lead simultaneous removal