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Open AccessArticle

Quantitative Immobilization of Phthalocyanine onto Bacterial Cellulose for Construction of a High-Performance Catalytic Membrane Reactor

Qianjiang College, Hangzhou Normal University, Hangzhou 310012, China
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Materials 2017, 10(7), 846; https://doi.org/10.3390/ma10070846
Received: 4 July 2017 / Revised: 21 July 2017 / Accepted: 22 July 2017 / Published: 24 July 2017
(This article belongs to the Section Advanced Composites)
We report the fabrication of a tetra-amino cobalt (II) phthalocyanine (CoPc)-immobilized bacterial cellulose (BC) functional nanocomposite, [email protected], by quantitative immobilization of CoPc onto a BC membrane. Lab-cultured BC was oxidized by NaIO4 to generate aldehyde groups on BC for the subsequent CoPc immobilization, the processing conditions were optimized by monitoring both the generated aldehyde content and the resulting CoPc loading. X-ray photoelectron spectroscopy (XPS) was employed to characterize the change of the element bonding environment during the functionalization processes. The [email protected] functional nanocomposite was utilized for the treatment of reactive red X-3B dye wastewater. The CoPc molecules in the [email protected] nanocomposite can function as an “antenna” to adsorb the target anionic dye molecules, the adsorption takes place both on the surface and in the interior of [email protected] A catalytic membrane reactor (CMR) was assembled with the [email protected] nanocomposite, the performance of CMR was evaluated based on the catalytic oxidation behavior of reactive red X-3B, with H2O2 as an oxidant. Highly-reactive hydroxyl radical (OH) was involved in the catalytic oxidation process, as detected by electron paramagnetic resonance (EPR). Under optimal operating conditions of a flow rate of 6 mL/min, a reaction temperature of 50 °C, and an H2O2 concentration of 10 mmol/L, the decoloration rate of CMR was as high as 50 μmol⋅min−1⋅g−1. View Full-Text
Keywords: bacterial cellulose; phthalocyanine; nanocomposite; catalytic membrane reactor bacterial cellulose; phthalocyanine; nanocomposite; catalytic membrane reactor
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Chen, S.; Teng, Q. Quantitative Immobilization of Phthalocyanine onto Bacterial Cellulose for Construction of a High-Performance Catalytic Membrane Reactor. Materials 2017, 10, 846.

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