Author
Margaritis Kostoglou
Other affiliations: Foundation for Research & Technology – Hellas
Bio: Margaritis Kostoglou is an academic researcher from Aristotle University of Thessaloniki. The author has contributed to research in topics: Adsorption & Population. The author has an hindex of 40, co-authored 281 publications receiving 5910 citations. Previous affiliations of Margaritis Kostoglou include Foundation for Research & Technology – Hellas.
Topics: Adsorption, Population, Diesel particulate filter, Bubble, Particle
Papers published on a yearly basis
Papers
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400 citations
TL;DR: This review is a critical approach to green adsorbents, discussing many different topics such as: adsorption capacity; kinetic modeling; critical techno-economical data of green adsOrption processes in order to scale-up experiments with economic analysis and perspectives of the use of green Adsorbents.
Abstract: One of the most serious environmental problems is the existence of hazardous and toxic pollutants in industrial wastewaters. The major hindrance is the simultaneous existence of many/different types of pollutants as (i) dyes; (ii) heavy metals; (iii) phenols; (iv) pesticides and (v) pharmaceuticals. Adsorption is considered to be one of the most promising techniques for wastewater treatment over the last decades. The economic crisis of the 2000s led researchers to turn their interest in adsorbent materials with lower cost. In this review article, a new term will be introduced, which is called "green adsorption". Under this term, it is meant the low-cost materials originated from: (i) agricultural sources and by-products (fruits, vegetables, foods); (ii) agricultural residues and wastes; (iii) low-cost sources from which most complex adsorbents will be produced (i.e., activated carbons after pyrolysis of agricultural sources). These "green adsorbents" are expected to be inferior (regarding their adsorption capacity) to the super-adsorbents of previous literature (complex materials as modified chitosans, activated carbons, structurally-complex inorganic composite materials etc.), but their cost-potential makes them competitive. This review is a critical approach to green adsorption, discussing many different (maybe in some occasions doubtful) topics such as: (i) adsorption capacity; (ii) kinetic modeling (given the ultimate target to scale up the batch experimental data to fixed-bed column calculations for designing/optimizing commercial processes) and (iii) critical techno-economical data of green adsorption processes in order to scale-up experiments (from lab to industry) with economic analysis and perspectives of the use of green adsorbents.
298 citations
TL;DR: In this paper, a phenomenological diffusion-reaction model was proposed for the sorbent process, which combines mass transfer of the metal ions from the bulk solution, diffusion of the ions through the swollen polymer particle, and instantaneous local chelation (for cations) or electrostatic attraction (for anions) on the amino groups of the polymer.
187 citations
TL;DR: In this paper, the effect of nanobubbles (NBs) on the adsorption in water was investigated, and a proposed mechanism exported from the experimental results, in which NBs act as carriers, was proposed based on the already known theory; the inherent property of NBs to accept charged particles onto their interface is considered to assist diffusion and penetration phenomena of lead ions into the activated carbon pores.
139 citations
TL;DR: In this paper, the effect of adding a vertical baffle at the feed section of a full-scale sedimentation tank for the improvement of solids settling in potable water treatment is investigated.
120 citations
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Journal Article•
28,685 citations
TL;DR: Van Kampen as mentioned in this paper provides an extensive graduate-level introduction which is clear, cautious, interesting and readable, and could be expected to become an essential part of the library of every physical scientist concerned with problems involving fluctuations and stochastic processes.
Abstract: N G van Kampen 1981 Amsterdam: North-Holland xiv + 419 pp price Dfl 180 This is a book which, at a lower price, could be expected to become an essential part of the library of every physical scientist concerned with problems involving fluctuations and stochastic processes, as well as those who just enjoy a beautifully written book. It provides an extensive graduate-level introduction which is clear, cautious, interesting and readable.
3,647 citations
TL;DR: In this paper, the opportunities and prospects in the chemical recycling of carbon dioxide to fuels, as a complementary technology to carbon sequestration and storage (CSS), are analyzed, and it is remarked that the requisites for this objective are (i) minimize as much as possible the consumption of hydrogen (or hydrogen sources), (ii) produce fuels that can be easily stored and transported, and (iii) use renewable energy sources.
1,208 citations
TL;DR: In this article, low-cost byproducts from agricultural, household and industrial sectors have been recognized as a sustainable solution for wastewater treatment, which allow achieving the removal of pollutants from wastewater and at the same time to contribute to the waste minimization, recovery and reuse.
1,105 citations
TL;DR: The physicochemical characteristics of spinels such as their compositions, structures, morphologies, defects, and substrates have been rationally regulated through various approaches and can yield spinels with improved ORR/OER catalytic activities, which can further accelerate the speed, prolong the life, and narrow the polarization of fuel cells, metal-air batteries, and water splitting devices.
Abstract: Spinels with the formula of AB2O4 (where A and B are metal ions) and the properties of magnetism, optics, electricity, and catalysis have taken significant roles in applications of data storage, biotechnology, electronics, laser, sensor, conversion reaction, and energy storage/conversion, which largely depend on their precise structures and compositions. In this review, various spinels with controlled preparations and their applications in oxygen reduction/evolution reaction (ORR/OER) and beyond are summarized. First, the composition and structure of spinels are introduced. Then, recent advances in the preparation of spinels with solid-, solution-, and vapor-phase methods are summarized, and new methods are particularly highlighted. The physicochemical characteristics of spinels such as their compositions, structures, morphologies, defects, and substrates have been rationally regulated through various approaches. This regulation can yield spinels with improved ORR/OER catalytic activities, which can furth...
1,036 citations