Publications by authors named "Dengchao Liu"
Article Synopsis
- Pharmaceuticals and personal care products (PPCPs) are emerging contaminants that negatively affect aquatic life, even in low concentrations, as revealed by a study on drains leading to the Yellow River in Ningxia.
- The analysis detected 21 PPCPs, with high concentrations of acetaminophen, diethyltoluamide, caffeine, benzophenone-3, and levofloxacin, and showed varying pollution levels across four cities, emphasizing different sources including agricultural and medical wastewater.
- An ecological risk assessment highlighted that several PPCPs, particularly levofloxacin and diclofenac, pose significant risks to aquatic organisms in these draining systems.
Article Synopsis
- A novel adsorbent made from chitosan (CS-DEO-SP) was created to effectively remove chromium(VI) (Cr(VI)) from water by using a specific chemical process involving diepoxyoctane and spermine.
- The optimal conditions for preparing these adsorbent beads included a concentration of spermine at 1.5 mg/L and a temperature of 50°C, leading to improved surface area and pore characteristics.
- The CS-DEO-SP beads showed a maximum adsorption capacity of 358.1 mg/g under acidic conditions (pH 2.0) and maintained good performance over multiple uses, making them a promising option for treating metal-plating wastewater.
As(III) and As(V) adsorption on nanocomposite of hydrated zirconium oxide coated carbon nanotubes.
J Colloid Interface Sci
February 2018
Novel hydrated zirconium oxide (ZrO(OH)) coated carbon nanotubes (CNTs) were prepared via a filtration-steam hydrolysis method, and were used to remove As(III) and As(V) from drinking water. This adsorbent was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The ZrO(OH) coated on the surface of CNTs was amorphous, and the coating thickness was in the range of 1-8 nm.
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