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C. Antuña-Nieto

Bio: C. Antuña-Nieto is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Mercury (element) & Sorbent. The author has an hindex of 4, co-authored 7 publications receiving 39 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors developed cost-effective regenerable sorbents made up of carbon supports loaded with maghemite and evaluated their application for mercury capture in CO2 enriched atmospheres.

24 citations

Journal ArticleDOI
TL;DR: New regenerable sorbents based on an activated carbon support impregnated with Ag and Au would be competitive given the environmental and health benefits they offer compared to the single-use activated carbons employed until now at industrial scale.

22 citations

Journal ArticleDOI
06 Jul 2017-Energy
TL;DR: In this paper, different iron oxides supported on an activated carbon were prepared and tested for the removal of elemental mercury (Hg 0 ), and the results obtained with the sorbent loaded with maghemite open new perspectives for the retention of gaseous Hg 0, combining high efficiency, good regenerability and lower price in comparison with sorbents developed to date.

18 citations

Journal ArticleDOI
06 Jul 2017-Energy
TL;DR: In this article, a regenerable sorbent based on carbon foams impregnated with gold has been optimized to achieve the maximum mercury retention efficiency using the minimum amount of gold.

16 citations

Journal ArticleDOI
TL;DR: In this paper, several kinetic models were applied to determine the rate-controlling step in the adsorption process of elemental mercury by regenerable sorbents based on gold, and three diffusional models (Weber and Morris, Bangham and pseudo-first order models) and two adsorptive models (pseudo-second order and Elovich models) were tested.
Abstract: Mercury has been the focus of environmental concern and scientific research for decades due to the risks associated with its use, release and emission An international agreement established in 2017 during the UN Minamata Convention highlighted the need for innovative approaches and technology to tackle these problems The use of regenerable sorbents for mercury removal in the gas phase is a possible solution that can avoid the generation of new mercury-contaminated waste However, to make significant progress in this field, it is necessary to develop efficient, economic and environmentally friendly sorbents, for which, a good understanding of the mechanism of adsorption in this type of process is needed In this study, several kinetic models were applied to determine the rate-controlling step in the adsorption process of elemental mercury by regenerable sorbents based on gold Three diffusional models (Weber and Morris, Bangham and pseudo-first order models) and two adsorptive models (pseudo-second order and Elovich models) were tested The results of this study show that external diffusion from the gaseous phase to the sorbent particles is the rate-limiting step The complexity of the process is also reflected in the results obtained, which indicate that pore diffusion plays a significant role over most of the mass transfer zone, while adsorption itself becomes determinant only when the saturation of the sorbent is near

8 citations


Cited by
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Journal ArticleDOI
TL;DR: The utilization of recyclable Cu-hs provides a cost-effective and environmentally friendly method for removing mercury from industrial flue gas.
Abstract: Mercury emission from industrial activities is a great threat to public health and ecosystems. Developing new strategies and materials to remove mercury still remains a serious task. Herein, seleni...

83 citations

Journal ArticleDOI
TL;DR: In this article , a review of the use of algae and seaweed biomass as potential sorbent for heavy metal bioremediation is presented, and relevant aspects like metal toxicity, adsorption mechanism, and parameters affecting the completion of the process are highlighted.
Abstract: The presence of heavy metals in water bodies is linked to the increasing number of industries and populations. This has serious consequences for the quality of human health and the environment. In accordance with this issue, water and wastewater treatment technologies including ion exchange, chemical extraction, and hydrolysis should be conducted as a first water purification stage. However, the sequestration of these toxic substances tends to be expensive, especially for large scale treatment methods that require tedious control and have limited efficiency. Therefore, adsorption methods using adsorbents derived from biomass represent a promising alternative due to their great efficiency and abundance. Algal and seaweed biomass has appeared as a sustainable solution for environmentally friendly adsorbent production. This review further discusses recent developments in the use of algal and seaweed biomass as potential sorbent for heavy metal bioremediation. In addition, relevant aspects like metal toxicity, adsorption mechanism, and parameters affecting the completion of adsorption process are also highlighted. Overall, the critical conclusion drawn is that algae and seaweed biomass can be used to sustainably eliminate heavy metals from wastewater.

62 citations

Journal ArticleDOI
15 Aug 2019-Energy
TL;DR: The 10th International Conference on Sustainable Energy and Environmental Protection SEEP as mentioned in this paper was held in Bled-Slovenia, Slovenia, where more than 300 papers were presented, around 25% of these papers were accepted for this special issue.

58 citations

Journal ArticleDOI
TL;DR: A newly designed electroless plating coupled with an in situ selenization method was developed to construct a copper selenide (Cu2Se)-functionalized commercial polyurethane sponge (PUS) as an efficient Hg0 trap, illustrating a versatile platform for the economic fabrication and practical application of advanced functional sponges in diverse environmental remediation.
Abstract: The paramount challenge in design and synthesis of materials for vapor-phase elemental mercury (Hg0) immobilization is to achieve a balance between performance and economy for practical application...

57 citations

Journal ArticleDOI
TL;DR: Sorbent injection is a promising and feasible strategy for mercury removal from coal-fired power production industries as discussed by the authors, which is an enormous threat to human health and ecosystems, and it has been shown to be effective in removing mercury from power plants.
Abstract: Mercury emitted from coal-fired power production industries is an enormous threat to human health and ecosystems. Sorbent injection is a promising and feasible strategy for mercury removal from the...

50 citations