Shui-yuan Cheng

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The re-suspended road dust samples from 53 sites that could cover basically the entire Beijing in summer, and aerosol samples from three representative sites in Beijing in four seasons were collected to study concentrations and spatial variations of elements and ions in resuspended road dust and its contribution to the air-borne particulate pollution. Ca,(More)
A mathematical model was developed in this paper to describe the nonylphenol (NP) accumulation in the effluent of a wastewater recycling system. The model quantitatively presented the relationships among the NP concentrations in the raw wastewater and the system effluent, the number of wastewater recycling cycles, the water recycling ratio, the system NP(More)
A novel electrochemical sensor for the detection of parathion based on molecularly imprinted polymer of self-assembled o-aminothiophenol onto gold electrode was constructed. The polymerization solution was prepared from a 10 mmol/L parathion, 5 mmol/L tetra-n-butylammonium perchlorate, 30 mmol/L o-aminothiophenol solution of dichloromethane.(More)
A modified sensor was fabricated by N-[3-(trimethoxysilyl) propyl]-ethylene diamine (TSPED) and colloidal gold particles (AuNPs) on glass carbon electrode (GCE). Atomic force microscopy (AFM) demonstrated that the colloidal gold particles were self-assembled onto the amine groups of the sol-gel. Due to the excellent electrocatalytic activity of gold(More)
Single or few-layer nanosheets of MoS2 (MoS2 nanosheets) and a composite composed of MoS2 nanosheets, Au nanoparticles (AuNPs) and hemin (HE) (denoted as MoS2-Au-HE) were prepared. The composites possessed high synergetic catalysis activity towards the electroreduction of hydrogen peroxide. Furthermore, glucose oxidase (GOD) and AuNPs were used as marker of(More)
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