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20 results on '"Liu, Hongbo"'

17. Fast removal of methylene blue from aqueous solution using porous soy protein isolate based composite beads

Author

Liu Hongbo, Jianbing Peng, Jinwen Hu, Chen Yanwu, Zou Hailiang, Huo Yingpeng, Lu Fenghui, and Liu Feng

Subjects
animal structures, Materials science, Scanning electron microscope, animal diseases, General Chemical Engineering, Composite number, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Industrial and Manufacturing Engineering, chemistry.chemical_compound, Adsorption, Environmental Chemistry, Fourier transform infrared spectroscopy, Porosity, Soy protein, Chromatography, Aqueous solution, General Chemistry, biochemical phenomena, metabolism, and nutrition, bacterial infections and mycoses, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, Chemical engineering, bacteria, 0210 nano-technology, Methylene blue
Abstract

Soy protein isolate (abbreviated as SPI) was chemically immobilized on deacetylated konjac glucomannan (abbreviated as DKGM) in the current work. The obtained porous SPI/DKGM composite beads were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectra (FTIR) and zeta potential analysis. Adsorption performances of porous SPI/DKGM composite beads were tested to remove methylene blue from aqueous solution. Benefiting from the combined merits of SPI, high adsorption capacity and fast adsorption of methylene blue (MB) by porous SPI/DKGM composite beads are achieved. The maximum methylene blue adsorption capacities were shown to be 272.4 mg g −1 for porous SPI–DKGM composite beads. These results confirm that the porous SPI–DKGM composite beads have a potential for methylene blue removal from wastewater.

Published
2016

20. Design of H3PW12O40/TiO2 and Ag/H3PW12O40/TiO2 film-coated optical fiber photoreactor for the degradation of aqueous rhodamine B and 4-nitrophenol under simulated sunlight irradiation

Author

Zhang, Shengqu, Chen, Ling, Liu, Hongbo, Guo, Wan, Yang, Yuxin, Guo, Yihang, and Huo, Mingxin

Subjects
*METALLIC oxides, *THIN films, *SURFACE coatings, *OPTICAL fibers, *CHEMICAL reactors, *BIODEGRADATION, *RHODAMINE B, *NITROPHENOLS, *SIMULATION methods & models
Abstract

Abstract: In order to improve sunlight-energy utilization efficiency of the photocatalyst for the degradation of organic pollutants in wastewater, a novel photoreactor that comprised H3PW12O40/TiO2 or metallic Ag deposited H3PW12O40/TiO2 film-coated optical fiber bundles was designed by the steps of sol–gel, hydrothermal treatment, photoreduction, and dip coating. The H3PW12O40/TiO2 or Ag/H3PW12O40/TiO2 film exhibited anatase phase, mesoporosity, and charge transfer band in the range of 200−400nm or 200−800nm. The photocatalytic activity of the H3PW12O40/TiO2 and Ag/H3PW12O40/TiO2 film-coated optical fibers was evaluated by the degradation of rhodamine B and 4-nitrophenol in aqueous solutions under the irradiation of commercial Xe lamp and self-made solar simulator (320nm< λ <680nm). The enhanced photocatalytic activity of the H3PW12O40/TiO2 or Ag/H3PW12O40/TiO2 film in comparison of TiO2 film was obtained and explained in terms of the synergistic photocatalytic effect between Keggin unit and TiO2 as well as surface plasmon resonance effect of metallic Ag; and considerably high photocatalytic activity of the H3PW12O40/TiO2 and Ag/H3PW12O40/TiO2 film in the optical fiber photoreactor is explained by the superior light-energy utilization of the catalyst in the optical-fiber reactor. Finally, the reusability of the catalyst film was evaluated through six consecutive catalytic runs. [Copyright &y& Elsevier]

Published
2012
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