Self-Assembly of Nanosheet-Supported Fe-MOF Heterocrystals as a Reusable Catalyst for Boosting Advanced Oxidation Performance via Radical and Nonradical Pathways

2021 ◽  
Author(s):  
Bofan Zhang ◽  
Liang Zhang ◽  
Kazuhiko Akiyama ◽  
Paul A. Bingham ◽  
Yingtang Zhou ◽  
...  
Keyword(s):  
Self Assembly ◽  
Advanced Oxidation ◽  
Reusable Catalyst ◽  
Oxidation Performance

scholarly journals Nano-PAA-CuCl2 Composite as Fenton-Like Reusable Catalyst to Enhanced Degrade Organic Pollutant MB/MO

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 10
Author(s):  
Yang Dang ◽  
Yu Cheng ◽  
Yukun Zhou ◽  
Yifei Huang ◽  
Kaige Wang
Keyword(s):  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Organic Pollutant ◽  
Energy Dispersive Spectrometer ◽  
Chemical Properties ◽  
Anodic Alumina ◽  
Alumina Substrate ◽  
Reusable Catalyst ◽  
X Ray ◽  
Nanoporous Anodic Alumina

The treatment of organic dye contaminants in wastewaters has now becoming more imperative. Fenton-like degradation of methylene blue (MB) and methyl orange (MO) in aqueous solution was investigated by using a nanostructure that a layer of CuCl2 nanoflake film grown on the top surface of nanoporus anodic alumina substrate (nano-PAA-CuCl2) as catalyst. The new nano-PAA-CuCl2 composite was fabricated with self-assembly approach, that is, a network porous structure film composed of CuCl2 nanoflake grown on the upper surface of nanoporous anodic alumina substrate, and the physical and chemical properties are characterized systematically with the X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), and high-resolution transmission electron microscopy (HRTEM), Energy Dispersive Spectrometer (EDS), X-ray photoelectron spectroscopy (XPS). The experimental results showed that the nano-PAA-CuCl2 catalyst presented excellent properties for the degradation of two typical organic pollutants such as MB and MO, which were almost completely degraded with 8 × 10−4mol/L nano-PAA-CuCl2 catalyst after 46 min and 60 min at reaction conditions of H2O2 18 mM and 23 mM, respectively. The effects of different reaction parameters such as initial pH, H2O2 concentration, catalyst morphology and temperature were attentively studied. And more, the stability and reusability of nano-PAA-CuCl2 were examined. Finally, the mechanism of MB and MO degradation by the nano-PAA-CuCl2/H2O2 system was proposed, based on the experimental data of the BCA and the temperature-programmed reduction (H2-TPR) and theoretical analysis, the reaction kinetics belonged to the pseudo-first-order equation. This new nanoporous composite material and preparation technology, as well as its application in Fenton-like reaction, provide an effective alternative method with practical application significance for wastewater treatment.

Prediction of advanced oxidation performance in various pilot UV/H2O2 reactor systems with MP- and LP- and DBD-UV lamps

2012 ◽  
Vol 210 ◽  
pp. 520-528 ◽  
Author(s):  
Roberta C.H.M. Hofman-Caris ◽  
Danny J.H. Harmsen ◽  
Erwin F. Beerendonk ◽  
Ton H. Knol ◽  
Corine J. Houtman ◽  
...  
Keyword(s):  
Advanced Oxidation ◽  
Oxidation Performance ◽  
Uv Lamps

Novel MoSe2 hierarchical microspheres for applications in visible-light-driven advanced oxidation processes

Nanoscale ◽  
2015 ◽  
Vol 7 (47) ◽  
pp. 19970-19976 ◽  
Author(s):  
Chu Dai ◽  
Enping Qing ◽  
Yong Li ◽  
Zhaoxin Zhou ◽  
Chao Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Self Assembly ◽  
Advanced Oxidation Processes ◽  
Three Dimensional ◽  
Advanced Oxidation ◽  
Oxidation Processes ◽  
Hierarchical Microspheres ◽  
Molybdenum Diselenide ◽  
Visible Light Driven

Self-assembly of three-dimensional molybdenum diselenide hierarchical microspheres and their visible-light-driven advanced oxidation processes.

Prediction of advanced oxidation performance in UV/H2O2 reactor systems with LP-UV lamps

2011 ◽  
Vol 11 (4) ◽  
pp. 460-467 ◽  
Author(s):  
C. H. M. Hofman-Caris ◽  
D. J. H. Harmsen ◽  
B. A. Wols ◽  
L. J. J. M. Janssen ◽  
E. F. Beerendonk ◽  
...  
Keyword(s):  
Drinking Water ◽  
Drinking Water Treatment ◽  
Advanced Oxidation ◽  
Design Tool ◽  
Operating Conditions ◽  
Reactor Performance ◽  
Water Characteristics ◽  
Oxidation Performance ◽  
H2o2 Oxidation ◽  
Uv Lamps

Advanced oxidation processes, like UV/H2O2 oxidation, are important barriers against organic micro pollutants in drinking water treatment. In order to guarantee safe drinking water, it is important to be able to predict the reactors' performance to adjust the operating conditions to the actual influent water characteristics (like UV transmission) and lamp performance. Therefore, a design tool was developed, which is based on a kinetic model that describes and predicts the direct photolysis and oxidation of organic compounds in pilot experiments, using Low Pressure (LP) UV-lamps. This model has been combined with computational fluid dynamics (CFD), in order to be able to accurately predict the results of pilot and full scale installations, and also to design reactor systems. The model was applied to three model compounds (atrazine, ibuprofen and NDMA) in two different pilot reactors, and it has been shown that reactor performance can be fairly predicted by applying this ‘UVPerox’ model. The model takes into account the water quality and power of the lamps, and the properties of the compounds involved.

Glucose oxidation performance is improved by the use of a supramolecular self-assembly of glucose oxidase and catalase

2019 ◽  
Vol 9 (2) ◽  
pp. 477-482 ◽  
Author(s):  
Caixia Cui ◽  
Yunming Fang ◽  
Biqiang Chen ◽  
Tianwei Tan
Keyword(s):  
Glucose Oxidase ◽  
Self Assembly ◽  
Glucose Oxidation ◽  
Oxidation Performance ◽  
Rapid Transformation

A multi-enzymes complex was assembled successfully via host/guest interactions, and it was used for rapid transformation of glucose.

Prediction of Advanced Oxidation Performance in Pilot UV/H2O2Reactor Systems with MP- and LP-UV Lamps

2012 ◽  
Vol 34 (2) ◽  
pp. 120-124 ◽  
Author(s):  
C.H.M. (Roberta) Hofman-Caris ◽  
D.J.H. Harmsen ◽  
E.F. Beerendonk ◽  
A.H. Knol ◽  
D.H. Metz ◽  
...  
Keyword(s):  
Advanced Oxidation ◽  
Oxidation Performance ◽  
Uv Lamps

Effects of PbO2/Pb3O4 Ratio Alteration for Enhanced Electrochemical Advanced Oxidation Performance

2021 ◽  
pp. 122277
Author(s):  
Hao Yang ◽  
Yan Zhou ◽  
Kuo Chen ◽  
Xinping Yu ◽  
Fengchao Sun ◽  
...  
Keyword(s):  
Advanced Oxidation ◽  
Oxidation Performance

scholarly journals Molten Salt Assisted Self-Assembly: Synthesis of Mesoporous LiCoO2and LiMn2O4Thin Films and Investigation of Electrocatalytic Water Oxidation Performance of Lithium Cobaltate

Small ◽  
2017 ◽  
Vol 14 (1) ◽  
pp. 1701913 ◽  
Author(s):  
Gülbahar Saat ◽  
Fadime Mert Balci ◽  
Elif Pınar Alsaç ◽  
Ferdi Karadas ◽  
Ömer Dag
Keyword(s):  
Molten Salt ◽  
Self Assembly ◽  
Water Oxidation ◽  
Oxidation Performance ◽  
Lithium Cobaltate
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