Bibliometric analysis of advanced oxidation processes (AOPs) in wastewater treatment: global and Ibero-American research trends

Macías-Quiroga, Iván F.; Henao-Aguirre, Paula Andrea; Marín-Flórez, Alexander; Arredondo-López, Sandra M.; Sanabria‐González, Nancy R.

doi:10.1007/s11356-020-11333-7

Cited by 41 publications

(34 citation statements)

References 98 publications

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“…Then, duplicate articles in WoS and Scopus were removed, resulting in a total of 177 items that matched the criteria and were included in this step. Merging Scopus and WoS is a novel approach and a recent tendency in scientometric papers [20], and it can be done easily with the Bibliometrix R package [21]. Figure 1 shows the general process to select the most relevant academic literature of by-product coffee applications.…”

Section: Step 1: Scientometric Analysismentioning

confidence: 99%

Scientometric Overview of Coffee By-Products and Their Applications

et al. 2021

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As coffee consumption is on the rise, and the global coffee production creates an excess of 23 million tons of waste per year, a revolutionary transition towards a circular economy via the transformation and valorization of the main by-products from its cultivation and preparation (Coffee Husk (CH), Coffee Pulp (CP), Coffee Silverskin (CS), and Spent Coffee Grounds (SCG)) is inspiring researchers around the world. The recent growth of scholarly publications in the field and the emerging applications of coffee by-products published in these scientific papers encourages a systematic review to identify the knowledge structure, research hotspots, and to discuss the challenges and future directions. This paper displays a comprehensive scientometric analysis based on 108 articles with a high level of influence in the field of coffee by-products and their applications. According to our analysis, the research in this field shows an explosive growth since 2017, clustered in five core applications: bioactive compounds, microbial transformation, environmental applications, biofuels from thermochemical processes, and construction materials.

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Section: Step 1: Scientometric Analysismentioning

confidence: 99%

Scientometric Overview of Coffee By-Products and Their Applications

et al. 2021

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“…Classifications are reported in the literature considering the source of the production of hydroxyl radicals. Amongst numerous oxidizing chemicals described in the literature, the dominant classification is mainly categorizing AOPs [1,4,5,7,12,[19][20][21][22][23][24] into (a) UV-hydrogen peroxide processes, (b) Fenton and photo-Fenton, (c) ozone-based processes, (d) photocatalysis and (e) sonolysis. Although reviews on the use of AOPs for purification systems have been reported in the literature [2,7,25], the 2 of 22 scope of this review is to coherently present and summarize the key points in each process, to classify the aspects of the chemical reactions and fully comprehend the role of each AOP.…”

Section: Introductionmentioning

confidence: 99%

Key Points of Advanced Oxidation Processes (AOPs) for Wastewater, Organic Pollutants and Pharmaceutical Waste Treatment: A Mini Review

et al. 2022

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Advanced oxidation procedures (AOPs) refer to a variety of technical procedures that produce OH radicals to sufficiently oxidize wastewater, organic pollutant streams, and toxic effluents from industrial, hospital, pharmaceutical and municipal wastes. Through the implementation of such procedures, the (post) treatment of such waste effluents leads to products that are more susceptible to bioremediation, are less toxic and possess less pollutant load. The basic mechanism produces free OH radicals and other reactive species such as superoxide anions, hydrogen peroxide, etc. A basic classification of AOPs is presented in this short review, analyzing the processes of UV/H2O2, Fenton and photo-Fenton, ozone-based (O3) processes, photocatalysis and sonolysis from chemical and equipment points of view to clarify the nature of the reactive species in each AOP and their advantages. Finally, combined AOP implementations are favored through the literature as an efficient solution in addressing the issue of global environmental waste management.

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“…Furthermore, several of these pollutants are recalcitrant to biological degradation and toxic to microorganisms. In recent years, advanced oxidation processes (AOPs) have been studied for the removal of a wide number of organic contaminants to increase wastewater biodegradability as a pretreatment prior to a subsequent biological treatment [ 4 , 5 ]. Versatility of AOPs is further boosted by the fact that they may generate •OH radicals in a variety of ways [ 3 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Research Trends on Pillared Interlayered Clays (PILCs) Used as Catalysts in Environmental and Chemical Processes: Bibliometric Analysis

Macías-Quiroga

Rengifo‐Herrera

Arredondo-López

et al. 2022

The Scientific World Journal

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Over the last four decades, a large number of studies have been published on pillared interlayered clays (PILCs) used as adsorbent materials and catalysts or supports for transition metals in heterogeneous catalysis. Particularly, PILCs have been used for water treatment through advanced oxidation processes (AOPs) to remove organic pollutants. They have also been studied in various chemical and environmental processes. Because of the growing interest in PILCs, this article is focused on analyzing scientific publications such as research/review articles and book chapters from the last four decades (from 1980 to 2019) through a bibliometric analysis (BA) to visualize and describe research trends on PILCs. By narrowing the bibliographic search to titles, keywords, and abstracts of publications related to PILCs, using Scopus and Web of Science (WoS) (the two scientific databases), a total of 3425 documents have been retrieved. The bibliometric dataset was analyzed by VantagePoint®. The main research trends identified in the last four decades were the use of PILCs in environmental processes (34.4% of total publications) along with chemical processes (petrochemical reactions 17.5%, SCR NOx 10.8%, and decomposition 8.2%). In environmental processes, PILCs have been used in photo-oxidation (32%), CWPO (21.1%), and heterogeneous catalysis (19.4%). Phenols, dyes, and VOCs have been the main pollutants studied using PILCs as catalysts. Fe, Ti, Zr, Cu, and Co are the most supported active phases in PILCs. Other research trends grouped by characterization techniques, countries, research areas, institutes, scientific journals that have published the most on this topic, number of publications per 5-year period, and most frequently used keywords through the last four decades have been identified. It was determined that the number of publications on PILCs has increased since 1980 and the countries with the highest number of publications are China, Spain, and The United States of America.

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Bibliometric analysis of advanced oxidation processes (AOPs) in wastewater treatment: global and Ibero-American research trends

Cited by 41 publications

References 98 publications

Scientometric Overview of Coffee By-Products and Their Applications

Scientometric Overview of Coffee By-Products and Their Applications

Key Points of Advanced Oxidation Processes (AOPs) for Wastewater, Organic Pollutants and Pharmaceutical Waste Treatment: A Mini Review

Research Trends on Pillared Interlayered Clays (PILCs) Used as Catalysts in Environmental and Chemical Processes: Bibliometric Analysis

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