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Catalysts, Volume 11, Issue 8

August 2021 - 147 articles

Cover Story: Photocatalysis is an efficient method to degrade organic pollutants in wastewater. Several parameters affect the process and the selection of the process operating parameters leading to a maximal pollutant degradation is not a straightforward task. In our study, we used response surface methodology (RSM) to analyze the photocatalytic degradation of phenol with graphitic carbon nitride and visible-light blue LED. To minimize the number of experiments, the Box Behnken design was applied for the design of experiments (DoE). The photocatalytic degradation of phenol was correlated with three independent process parameters using a second-order polynomial equation. The obtained correlation is very useful for the analysis of the process, selection of the process parameters, and optimization of pollutant degradation. View this paper
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Articles (147)

  • Article
  • Open Access
2,640 Views
11 Pages

Monapinone Coupling Enzyme Produces Non-Natural Heterodimers

  • Satoshi Ohte,
  • Masayuki Toyoda,
  • Keisuke Kobayashi,
  • Isao Fujii,
  • Taichi Ohshiro and
  • Hiroshi Tomoda

23 August 2021

The monapinone coupling enzyme (MCE), a fungal multicopper oxidase, catalyzes the regioselective C–C coupling between tricyclic monapinone A (the primary substrate) and other monapinones (secondary substrates) to produce atropisomeric biaryl homo- or...

  • Article
  • Open Access
5 Citations
3,555 Views
15 Pages

Identifying Energy Extraction Optimisation Strategies of Actinobacillus succinogenes

  • Waldo Gideon Lexow,
  • Sekgetho Charles Mokwatlo,
  • Hendrik Gideon Brink and
  • Willie Nicol

23 August 2021

A. succinogenes is well known for utilising various catabolic pathways. A multitude of batch fermentation studies confirm flux shifts in the catabolism as time proceeds. It has also been shown that continuous cultures exhibit flux variation as a func...

  • Article
  • Open Access
5 Citations
4,451 Views
21 Pages

One-Stage Catalytic Oxidation of Adamantane to Tri-, Tetra-, and Penta-Ols

  • Igor Yu. Shchapin,
  • Dzhamalutdin N. Ramazanov,
  • Andrey I. Nekhaev,
  • Roman S. Borisov,
  • Evgeny A. Buravlev and
  • Anton L. Maximov

23 August 2021

Tertiary tetraols of adamantane (C10H16, Tricyclo[3.3.1.1(3,7)]decan) have been widely used for the synthesis of highly symmetric compounds with unique physical and chemical properties. The methods for one-stage simultaneously selective, deep, and ch...

  • Article
  • Open Access
4 Citations
4,305 Views
18 Pages

CalkGH9T: A Glycoside Hydrolase Family 9 Enzyme from Clostridium alkalicellulosi

  • Paripok Phitsuwan,
  • Sengthong Lee,
  • Techly San and
  • Khanok Ratanakhanokchai

22 August 2021

Glycoside hydrolase family 9 (GH9) endoglucanases are important enzymes for cellulose degradation. However, their activity on cellulose is diverse. Here, we cloned and expressed one GH9 enzyme (CalkGH9T) from Clostridium alkalicellulosi in Escherichi...

  • Article
  • Open Access
3 Citations
3,475 Views
13 Pages

22 August 2021

Currently, the discharge of wastewater and utilization of phosphorus (P) in human activities cause some environmental problems, such as high organic pollutants in aquatic environments which results in dirty water sources, and a shortage of phosphate...

  • Review
  • Open Access
45 Citations
7,283 Views
47 Pages

Regiodivergent Organocatalytic Reactions

  • Mayavan Viji,
  • Srinu Lanka,
  • Jaeuk Sim,
  • Chanhyun Jung,
  • Heesoon Lee,
  • Manjunatha Vishwanath and
  • Jae-Kyung Jung

22 August 2021

Organocatalysts are abundantly used for various transformations, particularly to obtain highly enantio- and diastereomeric pure products by controlling the stereochemistry. These applications of organocatalysts have been the topic of several reviews....

  • Feature Paper
  • Article
  • Open Access
11 Citations
4,051 Views
21 Pages

Application of a Combined Adsorption−Ozonation Process for Phenolic Wastewater Treatment in a Continuous Fixed-Bed Reactor

  • Cristian Ferreiro,
  • Ana de Luis,
  • Natalia Villota,
  • Jose María Lomas,
  • José Ignacio Lombraña and
  • Luis Miguel Camarero

22 August 2021

This work studied the removal of phenol from industrial effluents through catalytic ozonation in the presence of granular activated carbon in a continuous fixed-bed reactor. Phenol was chosen as model pollutant because of its environmental impact and...

  • Article
  • Open Access
66 Citations
6,531 Views
13 Pages

Enhanced Photocatalytic Activity of rGO-CuO Nanocomposites for the Degradation of Organic Pollutants

  • Suresh Sagadevan,
  • Jayasingh Anita Lett,
  • Getu Kassegn Weldegebrieal,
  • Seema Garg,
  • Won-Chun Oh,
  • Nor Aliya Hamizi and
  • Mohd Rafie Johan

21 August 2021

Copper oxide (CuO) nanoparticles (NPs) were decorated on reduced graphene oxide (rGO) through the effective synthetic route method. Powder X-ray diffraction, Fourier transform infrared, ultraviolet-visible absorption, and scanning electron microscopy...

  • Feature Paper
  • Article
  • Open Access
10 Citations
3,154 Views
8 Pages

Volatile Fatty Acids from Lipid-Extracted Yeast Provide Additional Feedstock for Microbial Lipid Production

  • Gwon Woo Park,
  • Seongsoo Son,
  • Myounghoon Moon,
  • Subin Sin,
  • Kyoungseon Min,
  • Jin-Suk Lee and
  • Ho Nam Chang

21 August 2021

Microbial lipid production from oleaginous yeasts is a promising process for the sustainable development of the microbial biodiesel industry. However, the feedstock cost poses an economic problem for the production of microbial biodiesel. After lipid...

  • Feature Paper
  • Article
  • Open Access
37 Citations
5,318 Views
11 Pages

Photocatalytic Properties of Amorphous N-Doped TiO2 Photocatalyst under Visible Light Irradiation

  • Kyong-Hwan Chung,
  • Byung-Joo Kim,
  • Young-Kwon Park,
  • Sang-Chai Kim and
  • Sang-Chul Jung

21 August 2021

Amorphous TiO2 doped with N was characterized by its photocatalytic activity under visible light irradiation. The amorphous N-doped TiO2 was prepared by the sol-gel method through heat treatment at a low temperature. The photocatalyst showing activit...

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Catalysts - ISSN 2073-4344