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Journal of Environmental Sciences 2013年第11期25卷 2331-2337页

作者： Jie Zhang College of Environmental Science and Engineering Tongji University

Thiosemicarbazide-grafted multi-walled carbon nanotubes were prepared and employed to investigate the pre-concentration of Cd（Ⅱ）, Cu（Ⅱ） and Pb（Ⅱ） from aqueous solution prior to their determination by ICP-OES. The resulting material was characterized by FT-IR, TGA and SEM. Various factors influencing the separation and pre-concentration were investigated. The enrichment factor typically is 60. Under optimized experimental conditions, the maximum adsorption capacities of Cd（Ⅱ）, Cu（Ⅱ） and Pb（Ⅱ） were found to be 1.98, 10.94, 3.69 mg/g, and the relative standard deviations are 〈 3.5% （n = 6）. The new adsorbent shows superior reusability and stability. The procedure was successfully applied to the determination of trace quantities of Cd（Ⅱ）, Cu（Ⅱ） and Pb（Ⅱ） in water samples.

关键词： multiwalled carbon nanotubes solid-phase-extraction preconcentration heavy metal ions

Electroless deposition of Cu on multiwalled carbon nanotubes

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Rare Metals 2006年第3期25卷 237-240页

作者： YUAN Dingsheng LIU Yingliang Institute of Nanochemistly Department of Chemistry Jinan University Guangzhou 510632 China

Copper has been deposited on the surface of multiwailed carbon nanombes （MWNTs） and inside MWNTs by electroless deposition. The as-prepared Cu-MWNT composite materials have been characterized by X-ray diffractometer （XRD）, transmission electron microscopy （TEM）, and electrochemical measurement. XRD analyses showed that Cu was a face-centered cubic （fcc） structure. The average size of Cu was calculated by Scherrer＇s formula from XRD data, and it was 11 nm. TEM revealed that Cu grains on the surface of MWNTs were uniform with the sizes of about 30-60 nm. The electrochemical measurement indicated that Cu-MWNT composite materials possessed fine electron conductivity.

关键词： inorganic chemistry composite materials electroless deposition multiwalled carbon nanotubes

Self-Decoration of PtNi Alloy Nanoparticles on multiwalled carbon nanotubes for Highly Efficient Methanol Electro-Oxidation

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Nano-Micro Letters 2016年第4期8卷 371-380页

作者： Yu-Yan Zhou Chang-Hai Liu Jie Liu Xin-Lei Cai Ying Lu Hui Zhang Xu-Hui Sun Sui-Dong Wang Institute of Functional Nano & Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesSoochow University School of Materials Science & Engineering Jiangsu Collaborative Innovation Center of Photovoltaic Science and EngineeringChangzhou University

A simple one-pot method was developed to prepare Pt Ni alloy nanoparticles,which can be self-decorated on multiwalled carbon nanotubes in [BMIm][BF4] ionic *** nanohybrids are targeting stable nanocatalysts for fuel cell *** sizes of the supported Pt Ni nanoparticles are uniform and as small as 1–2 ***-to-Ni ratio was controllable by simply selecting a Pt Ni alloy *** alloy nanoparticles with Pt-to-Ni ratio of 1:1 show high catalytic activity and stability for methanol *** performance is much higher compared with those of both Pt-only nanoparticles and commercial Pt/C *** electronic structure characterization on the Pt Ni nanoparticles demonstrates that the electrons are transferred from Ni to Pt,which can suppress the CO poisoning effect.

关键词： PtNi nanoparticles multiwalled carbon nanotubes Methanol electro-oxidation

Deposition of copper nanoparticles on multiwalled carbon nanotubes modified with poly （acrylic acid） and their antimicrobial application in water treatment

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Frontiers of Environmental Science & Engineering 2015年第4期9卷 625-633页

作者： Li SHENG Shuhang HUANG Minghao SUI Lingdian ZHANG Lei SHE Yong CHEN State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai 200092 China

A novel hybrid material, Cu-PAA/MWCNTs （copper nanoparticles deposited multiwalled carbon nano- tubes with poly （acrylic acid） as dispersant, was prepared and expected to obtain a more effective and well-dispersed disinfection material for water treatment. X-ray energy dispersive spectroscopy （EDS）, transmission electron microscopy （TEM）, the X-ray fluorescence （XRF）, X-ray photoelectron spectra （XPS）, Fourier transform infrared spectra （FT-IR）, Raman spectroscopy, and thermal gravi- metric analyzer （TGA） were used to characterize the Cu- PAA/MWCNTs. Escherichia coli （E. coil） was employed as the target bacteria. The cell viability determination and fluorescence imaging results demonstrated that Cu-PAA/ MWCNTs possessed strong antimicrobial ability on E. coil. The deposited Cu was suggested to play an important role in the antimicrobial action of Cu-PAA/MWCNTs.

关键词： multiwalled carbon nanotubes copper nanoparticles antimicrobial activity Escherichia coli (E. coil)

Sensitive determination of fenpropathrin,cyhalothrin and deltamethrin in environmental water samples using multiwalled carbon nanotubes cartridge prior to HPLC

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Chinese Chemical Letters 2008年第1期19卷 95-98页

作者： Qing Xiang Zhou Guo Hong Xie Jun Ping Xiao Wei Dong Wang Yu Jie Ding School of Chemistry and Environmental Sciences Henan Normal University Henan Key Laboratory for Environmental Pollution Control Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control Ministry of Education Xinxiang 453007 China College of Resources and Environment Henan Institute of Science and Technology Xinxiang 453003 China Department of Chemistry University of Science and Technology Beijing Beijing 100083 China

This paper described a new method for the trace determination of fenpropathrin, cyhalothrin and deltamethrin using multiwalled carbon nanotubes （MWCNTs） cartridge. Important parameters, such as the sample pH, eluent and its volume, sample flow rate and sample volume were investigated in detail. The linear ranges, the detection limits, and precisions （R.S.D.） were in the range of 0.1- 40 μg L^-11, 1.34.3 ng L^-1 and 2.3-2.8%, respectively. The performance of the proposed method was validated with real water samples, and the spiked recoveries were in the range of 91.7-117.8%, respectively. The experimental results demonstrated that the proposed method was an excellent alternative for the routine analysis of such pollutants in environmental samples. 2007 Qing Xiang Zhou. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： multiwalled carbon nanotubes Fenpropathrin Cyhalothrin Deltamethrin High performance liquid chromatography

Highly conjugated water soluble CdSe quantum dots to multiwalled carbon nanotubes

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Chinese Chemical Letters 2009年第3期20卷 356-357页

作者： Gui Zheng Zou School of Chemistry and Chemical Engineering Shandong University Jinan 250100 China

Highly conjugated multiwalled carbon nanotube-quantum dot heterojunctions were synthesized by ethylene carbodiimide coupling procedure. The functional multiwalled carbon nanotube with carboxylic groups on sidewall could react with the amino group of L-cysteine capped CdSe quantum dots and then resulted in nanotube-quantum dot heterojunctions. Scanning electron microscopy was used to characterize the heterojunctions.

关键词： multiwalled carbon nanotubes Quantum dots Heterojunctions

New amperometric glucose biosensor by entrapping glucose oxidase into chitosan/nanoporous ZrO_2/multiwalled carbon nanotubes nanocomposite film

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Journal of Central South University of Technology 2007年第1期14卷 73-77页

作者：魏万之翟秀荣曾金祥高艳萍龚淑果 State key Laboratory of Chemo-Biosensing and Chemometrics School of Chemistry and Chemical EngineeringHunan University Department of Chemistry Jining Teachers College

A new nanocomposite material for construction of glucose biosensor was prepared. The biosensor was formed by entrapping glucose oxidase(Gox) into chitosan/nanoporous ZrO2/multiwalled carbon nanotubes nanocomposite film. In this biosensing thin film, the multiwalled carbon nanotubes can effectively catalyze hydrogen peroxide and nanoporous ZrO2 can enhance the stability of the immobilized enzyme. The resulting biosensor provides a very effective matrix for the immobilization of glucose oxidase and exhibits a wide linear response range from 8 μmol/L to 3 mmol/L with a correlation coefficient of 0.994 for the detection of glucose. And the response time and detection limit of the biosensor are determined to be 6 s and 3.5 μmol/L, respectively. Another attractive characteristic is that the biosensor is inexpensive, stable and reliable.

关键词： biosensor nanocomposite glucose oxidase nanoporous ZrO2 multiwalled carbon nanotubes chitosan

Uptake and accumulation of multiwalled carbon nanotubes change the morphometric and biochemical characteristics of Onobrychis arenaria seedlings

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Frontiers of Chemical Science and Engineering 2012年第2期6卷 132-138页

作者： Elena SMIRNOVA Alexander GUSEV Olga ZAYTSEVA Olga SHEINA Alexey TKACHEV Elena KUZNETSOVA Elena LAZAREVA Galina ONISHCHENKO Alexey FEOFANOV Mikhail KIRPICHNIKOV Biology Faculty Lomonosov Moscow State University Moscow 119991 Russia Derzhavin Tambov State University Tambov 392000 Russia Siberian Institute of Plants Physiology and Biochemistry Siberian Branch Russian Academy of Sciences Irkutsk 664033 Russia NanoTechCenter Ltd. Tambov 392000 Russia Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences Moscow 117997 Russia

We have studied the effect of the engineered nanomaterial Taunit, containing multiwalled carbon nano- tubes （MWCNTs）, on the growth of Onobrychis arenaria seedlings and investigated whether affected plants uptake and accumulate MWCNTs. We found that 100 gg/mL and 1000 lag/mL of Taunit stimulated the growth of roots and stems, and enhanced the peroxidase activity in these parts of plants. Microscopy studies showed the presence of MWCNTs in the root and leaf tissues of seedlings exposed to Taunit, suggesting that MWCNTs have a capacity to penetrate the cell walls, accumulate in roots and translocate to the leaves. Thus the stimulating effect of MWCNTs on seedlings of O. arenaria may be associated with the primary uptake and accumulation of MWCNTs by plant roots followed by translocation to the other plant tissues.

关键词： multiwalled carbon nanotubes plants electron microscopy

multiwalled carbon nanotubes covered with cobalt（Ⅱ） phthalocyanine by in-situ synthesis and its electrochemical sensing performance towards DA and UA

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Multiwalled carbon nanotubes covered with cobalt（Ⅱ） phtha...

New modified multiwalled carbon nanotubes paste electrode for electrocatalytic oxidation and determination of warfarin in biological and pharmaceutical samples

2014中国功能材料科技与产业高层论坛

作者： Huahua Wang Nan Li Kai Li Yuan Bu Wenle Dai Xia Zuo Department of Chemistry Capital Normal University

multiwalled carbon nanotubes（MWCNTs）as an excellent supporter covered with a thick layer of cobalt phthalocyanine（CoPc）were prepared by insitu *** particleswere adopted to enhance the conductivity of *** final nanocompositePt-CoPc-MWCNTswascharacterized by X-ray diffraction（XRD）,X-ray photoelectron spectroscopy（XPS）and transmission electron microscopy（TEM）.Strong aromaticπ-πstacking between MWCNTs and CoPc made CoPc in-situ forming on *** homogeneous thickness of CoPc covered on the MWCNTs and Pt particles equally distributed,the nanocomposite was used as *** electrochemical properties of the composite got researchedby casting the dispersion of Pt-CoPc-MWCNTs on the glassy carbon *** with other modified electrodes,Pt-CoPc-MWCNTs/GC electrodeexhibited excellent electrochemical activity towards dopamine（DA）and uric acid（UA）.Linear responses for DA and UA were obtained in the ranges of 5 to 170μM and 5 to 100μM,and limitsof detection were 2.6 and 1.4μM（S/N=3）,*** detection of DA and UA in the presence of ascorbic acid（AA）also displayed selective property,with no interference to each other.

关键词： Cobalt phthalocyanine multiwalled carbon nanotubes Platinum particles Electrochemistry Sensors

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Chinese Journal of Catalysis 2016年第3期37卷 436-445页

作者： Masoumeh Taei Fardin Abedi 帕亚莫.努尔大学化学系

A novel sensor for the determination of warfarin based on a simple and sensitive method was developed on multiwalled-carbon-nanotube modified ZnCrFeO4 carbon paste electrodes（MWCNT/ZnCrFeO4/CPEs）. Cyclic voltammetry, differential pulse voltammetry, chronoamperometry, and electrochemical impedance spectroscopy were used to investigate the electrochemical behavior of warfarin at the chemically modified electrode. According to the results, MWCNT/ZnCrFeO4/CPEs showed high electrocatalytic activity for warfarin oxidation, producing a sharp oxidation peak current at about ＋0.97 vs Ag/AgCl reference electrode at pH = 4.0. The peak current was linearly dependent on warfarin concentration over the range of 0.02–920.0 μmol/L with a detection limit of 0.003 μmol/L. In addition, chronoamperometry was also used to determine warfarin＇s catalytic rate constant and diffusion coefficient at MWCNT/ZnCrFeO4/CPEs.

关键词： ZnCrFeO4 multiwalled carbon nanotubes Warfarin Electrochemical impedance spectroscopy Paste electrode