Chuantao Hou

Yangzhou University, Chiang-tu, Jiangsu Sheng, China

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Publications (8)31.47 Total impact

  • Chuantao Hou · Qin Xu · Yanjuan Wang · Xiaoya Hu
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    ABSTRACT: Pt@NH2-MIL-125(Ti), containing ultrafine Pt nanoparticles in its cages, was successfully synthesized by a double solvent method followed by photoreduction, and their use as a photocathode material for photoelectrochemical hydrogen production was explored.
    No preview · Article · Nov 2013 · RSC Advances
  • Chuantao Hou · Qin Xu · Jinyun Peng · Zhengping Ji · Xiaoya Hu
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    ABSTRACT: (110)-oriented zeolitic imidazolate framework (ZIF)-8 thin films with controllable thickness are successfully deposited on indium tin oxide (ITO) electrodes at room temperature. The method applied uses 3-aminopropyltriethoxysilane (APTES) in the form of self-assembled monolayers (SAMs), followed by a subsequent adoption of the layer-by-layer (LBL) method. The crystallographic preferential orientation (CPO) index shows that the ZIF-8 thin films are (110)-oriented. A possible mechanism for the growth of the (110)-oriented ZIF-8 thin films on 3-aminopropyltriethoxysilane modified ITO is proposed. The observed cross-sectional scanning electron microscopy (SEM) images and photoluminescent (PL) spectra of the ZIF-8 thin films indicate that the thickness of the ZIF-8 layers is proportional to the number of growth cycles. The extension of such a SAM method for the fabrication of ZIF-8 thin films as described herein should be applicable in other ZIF materials, and the as-prepared ZIF-8 thin films on ITO may be explored for photoelectrochemical applications.
    No preview · Article · Jan 2013 · ChemPhysChem
  • Chuantao Hou · Jinyun Peng · Qin Xu · Zhengping Ji · Xiaoya Hu
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    ABSTRACT: Continuous MOF-5 thin films were successfully synthesized on a glassy carbon electrode (GCE) with 4-carboxyphenyl as a covalent linker, and their use as a photoelectrochemical sensor for the detection of ascorbic acid was explored.
    No preview · Article · Nov 2012 · RSC Advances
  • Chuantao Hou · Qin Xu · Lina Yin · Xiaoya Hu
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    ABSTRACT: Co(3)O(4) nanoparticles (NPs) with an average diameter of about 20 nm were synthesized by using MOFs as a template. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed to characterize the as-prepared Co(3)O(4) NPs. Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) were used to confirm the structure of the Co(3)O(4) NPs. Then the Co(3)O(4) NPs were modified on a glassy carbon electrode (GCE) to obtain a non-enzymatic glucose and H(2)O(2) sensor. The NPs show electrocatalytic activity toward oxidation of glucose and H(2)O(2) in alkaline medium. For glucose detection, the developed sensor shows a short response time (less than 6 s), a high sensitivity of 520.7 μA mM(-1) cm(-2), a detection limit of 0.13 μM (S/N = 3), and good selectivity. The high concentration of NaCl does not poison the electrode. Its application for the detection of glucose in a human blood serum sample shows good agreement with the results obtained from the hospital. Furthermore, the proposed sensor was used for the detection of H(2)O(2). The results indicate that the detection limit and sensitivity for H(2)O(2) are 0.81 μM and 107.4 μA mM(-1) cm(-2), respectively. Determination of H(2)O(2) concentration in a disinfectant sample by the proposed biosensor also showed satisfactory result. The high sensitivity and low detection limit can be attributed to the excellent electrocatalytic performance of the as-prepared Co(3)O(4) NPs. These results demonstrate that the as-prepared Co(3)O(4) NPs have great potential applications in the development of sensors for enzyme-free detection of glucose and H(2)O(2).
    No preview · Article · Oct 2012 · The Analyst
  • Qin Xu · Lina Yin · Chuantao Hou · Xiaoxian Liu · Xiaoya Hu
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    ABSTRACT: In this paper, a facile electrochemical alloying-dealloying technique was performed in aqueous media to prepare a nanoporous platinum (Pt) electrode with high sensitivity for glucose sensing. A homogeneous Pt-Cu alloy was electrochemically deposited on a glassy carbon electrode at room temperature, and then Cu in the alloy was selectively dissolved by electrochemical method from the Pt-Cu alloy resulting in the nanoporous platinum film with a higher surface area. A roughness factor of the electrode was determined from the ratio of the true area to the geometric area, and it was up to 184. This nanoporous platinum exhibits high stability and remarkable catalytic activity for glucose oxidation in pH 7.0 PBS. It is also resistant toward poisoning by some common interfering species such as uric acid and p-acetamidophenol. Under the optimal experimental conditions, the nanoporous platinum film responded to glucose with a good linear dependence in the range from 1.00 x 10(-5) to 8.14 x 10(-3) M and the detection limit was 7.75 x 10(-6) M (S/N = 3).
    No preview · Article · Oct 2012 · Sensors and Actuators B Chemical
  • Jinyun Peng · Chuantao Hou · Xiaoya Hu
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    ABSTRACT: An electrochemical method has been successfully demonstrated for sensitive determination of Metronidazole (MTZ) with graphene (Gr)-room temperature ionic liquid (IL) of 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6) composite modified glassy carbon electrode (GCE). The cyclic voltammetric results indicate that Gr-IL/GCE can remarkably enhance electrocatalytic activity towards the reduction of MTZ in neutral solutions. MTZ produce a cathodic peak at about −0.69 V at this electrode. The electrochemical parameters of MTZ in the composite film were carefully calculated with the results of the charge transfer coefficient (α) as 0.625 and the number of electron transferred (n) as 4. The electrocatalytic behavior was further exploited as a sensitive detection scheme for the MTZ determination by differential-pulse voltammetry (DPV). Under optimized conditions, the concentration range and detection limit were 1.0 × 10−7–2.5 × 10−5 mol L−1 and 4.7 × 10−8 mol L−1 (S/N = 3), respectively for MTZ. The method was successfully applied assay of the drug in the pharmaceutical dosage forms.
    No preview · Article · Jul 2012 · Sensors and Actuators B Chemical
  • Hongbo Li · Jing Li · Zhanjun Yang · Qin Xu · Chuantao Hou · Jinyun Peng · Xiaoya Hu
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    ABSTRACT: An ultrasensitive electrochemical method for simultaneous determination of lead and cadmium was first developed using the novel bismuth-Nafion-medical stone doped disposable electrode (an improved wax-impregnated graphite electrode). Through the synergistic sensitization effect of the resulting composite material, the disposable electrode showed remarkable electrochemical responses to lead and cadmium. The oxidation of the two metals produced two well-defined and separated square wave peaks at about -0.62 V for Pb(2+) and -0.85 V for Cd(2+), respectively. The effects of the amount of medical stone, concentration of Nafion, thickness of bismuth, pH of buffer solution, deposition potential, accumulation time, voltammetric measurement and possible interferences were investigated in detail. Under the optimal conditions, the fabricated electrode exhibited linear ranges from 2.0 to 12.0 μg L(-1) with detection limit of 0.07 μg L(-1) for lead and 2.0-12.0 μg L(-1) with detection limit of 0.47 μg L(-1) for cadmium. The assay results of heavy metals in wastewater with the proposed method were in acceptable agreement with the atomic absorption spectroscopy method.
    No preview · Article · Jul 2011 · Journal of hazardous materials
  • Hongbo Li · Jing Li · Chuantao Hou · Shi Du · Yanyan Ren · Zhanjun Yang · Qin Xu · Xiaoya Hu
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    ABSTRACT: A ultrasensitive, simple and convenient electrochemical method was firstly developed for the determination of prochloraz and its metabolites as 2,4,6-trichlorophenol (2,4,6-TCP) using nano-aperture medical stone. Compared with the undoped disposable electrode (UDE), nano-aperture medical stone doped disposable electrode (MSDDE) not only significantly enhances the oxidation peak current of 2,4,6-TCP but also lowers the oxidation overpotential, suggesting that the nano-aperture MSDDE can remarkably improve the sensitivity of 2,4,6-TCP. The experimental conditions such as pH values of buffer solution, the content of nano-aperture medical stone, accumulation potential and time were optimized for the determination of 2,4,6-TCP. At optimal conditions, the oxidation peak current is proportional to the concentration of 2,4,6-TCP over the range from 6.0 × 10(-9) to 8.0 × 10(-5)mol L(-1). Finally, this novel method was successfully employed to detect prochloraz and its metabolites in orange rind with the detection limit of 8.4 × 10(-10)mol L(-1) (0.3 ng g(-1)) and the method was validated by gas chromatography.
    No preview · Article · Dec 2010 · Talanta