Article
Nanoscience & Nanotechnology
N. Tan Luong, Noemie Veyret, Jean-Francois Boily
Summary: The variation in air humidity plays a crucial role in controlling water film coverages on reactive minerals, which in turn affects CO2 capture. This study focuses on the growth of amorphous magnesium carbonate on MgO nanocubes exposed to moist CO2 gas, shedding new light on the potential bottleneck for the efficient mineralization of CO2.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Green & Sustainable Science & Technology
Marley Nunes Vituri Toloi, Silvia Helena Bonilla, Rodrigo Carlo Toloi, Irenilza de Alencar Naas
Summary: Climate change is a global concern, with increasing impacts from anthropogenic greenhouse gas emissions on ecosystems, human life, and agriculture. This study focused on analyzing CO2 emissions from soybean cultivation in Mato Grosso state, a major product of Brazilian agribusiness chains, and determining the carbon sequestration potential of the biomes in different macro-regions. The results showed that the carbon sequestration by the biomes exceeded the emissions from soybean cultivation, and environmental laws were sufficient to mitigate such emissions. It is important for soybean farmers to adopt low-carbon agricultural practices and preserve the legally protected areas for future generations.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Construction & Building Technology
Alexander German, Frank Winnefeld, Pietro Lura, Daniel Rentsch, Barbara Lothenbach
Summary: The hydration of reactive MgO in the presence of hydromagnesite was studied. A brucite-like phase with low crystallinity was found as the hydration product, which contained loosely bound gel water and was suggested to uptake carbonate.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Chemistry, Physical
Xin Zhang, Alan S. Lea, Anne M. Chaka, John S. Loring, Sebastian T. Mergelsberg, Elias Nakouzi, Odeta Qafoku, James J. De Yoreo, Herbert T. Schaef, Kevin M. Rosso
Summary: Understanding crystallization pathways at nanoscale under high pressure and temperature is challenging. This study used high-pressure atomic force microscopy to directly observe brucite carbonation in water-bearing supercritical carbon dioxide, revealing that the amorphous magnesium carbonate acts as a seed for the crystallization of nesquehonite. Additionally, in situ infrared and thermogravimetric-mass spectrometry analyses indicated the stoichiometry of the amorphous intermediate.
Article
Chemistry, Physical
Yi-Ming Ju, Fang Huang, Xin Ding, Li-Bo Mao, Shu-Hong Yu
Summary: This study investigates the mechanism of Mg2+ ion-regulated mineralization of CaCO3 by tracing Mg isotope fractionation. The different mineralization pathways of CaCO3 under different Mg2+ ion concentrations are clarified, and the detailed regulatory role of Mg2+ ions at different stages of mineralization is proposed. These results provide important insights for finely controlling the phase of crystalline products.
Article
Chemistry, Physical
Yi-Ming Ju, Fang Huang, Xin Ding, Li-Bo Mao, Shu-Hong Yu
Summary: This study clarifies the different mineralization pathways of CaCO3 under different Mg2+ ion concentrations by tracing Mg isotope fractionation. The detailed regulatory role of Mg2+ ions at different stages of mineralization is proposed.
Article
Engineering, Environmental
Erika Callagon La Plante, Xin Chen, Steven Bustillos, Arnaud Bouissonnie, Thomas Traynor, David Jassby, Lorenzo Corsini, Dante A. Simonetti, Gaurav N. Sant
Summary: This study presents the mass balances of carbon dioxide removal (CDR) using seawater through electrolysis. The process leads to the durable immobilization of CO2 and can remove approximately 4.6 kg of CO2 per m3 of seawater catholyte processed. The research provides quantifications of the Equatic process as a technological CDR method to mitigate the worst effects of climate change.
ACS ES&T ENGINEERING
(2023)
Article
Geochemistry & Geophysics
Sijia Dong, Tiange Xing, Liang Zhao, Chen Zhu, Xizhi Yao, Shuhan Zhao, Hui H. Teng
Summary: Mineral carbonation through reaction with supercritical CO2 (scCO2) is the ultimate pathway to permanent carbon storage for geological sequestration. The researchers designed a novel in situ Raman reactor to study the carbonation product during brucite [Mg(OH)2]-scCO2 interaction and investigate the role of free H2O. By comparing the products in different conditions, they revealed the effect of polarity in the reaction and demonstrated that the brucite-scCO2 reaction could proceed without H2O under certain conditions.
APPLIED GEOCHEMISTRY
(2023)
Article
Environmental Sciences
Evan Ronan, Otini Kroukamp, Steven N. Liss, Gideon Wolfaardt
Summary: The oxidation of ammonia by autotrophic bacteria is an essential part of the nitrogen cycle and biological nutrient removal during wastewater treatment. This process produces CO2, which can contribute to greenhouse gas emissions if transferred to the atmosphere. Two experimental systems demonstrated the relationship between ammonia removal and gaseous CO2 emissions, highlighting the need for further research on managing CO2 production in engineered systems.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Xiao-Tong Wang, Huan Liu, Zhao-Feng Lv, Fan-Yuan Deng, Hai-Lian Xu, Li-Juan Qi, Meng-Shuang Shi, Jun-Chao Zhao, Song-Xin Zheng, Han-Yang Man, Ke-Bin He
Summary: Global international maritime trade has a significant impact on shipping emissions, with potential unfairness, but there is a large emission reduction potential through optimizing international trade patterns. Establishing a more systematic solution and joint efforts from the shipping industry and global trade network can effectively address climate change.
NATURE CLIMATE CHANGE
(2021)
Review
Green & Sustainable Science & Technology
Amrita Kumari Panda, Rojita Mishra, Joystu Dutta, Zishan Ahmad Wani, Shreekar Pant, Sazada Siddiqui, Saad Abdulrahman Alamri, Sulaiman A. Alrumman, Mohammed Ali Alkahtani, Satpal Singh Bisht
Summary: This paper critically investigates the factors responsible for greenhouse gas emissions during vermicomposting so that possible threats can be managed.
Article
Construction & Building Technology
Daniel Jansen, Alexander German, Dominique Ectors, Frank Winnefeld
Summary: This study used X-ray diffraction and Rietveld refinement technique to investigate a hydrous carbonate-containing brucite and found that the 001 reflection of this phase split into different patterns at different temperatures. The presence of water and/or carbonate influenced the distance between the layers in the brucite structure.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Engineering, Environmental
Xiaoqiang Gong, Jinbiao Li, Scott X. Chang, Qian Wu, Zhengfeng An, Chengpeng Huang, Xiangyang Sun, Suyan Li, Hui Wang
Summary: The use of manure-derived biochar provides an alternative to prevent greenhouse gas emissions caused by direct manure application to soil. Soil fauna, especially earthworms, have a significant impact on carbon dioxide (CO2) and nitrous oxide (N2O) emissions from soil. This study investigated the effects of different levels of cattle manure biochar on CO2 and N2O emissions and changes in soil properties, as well as the presence of earthworm Aporrectodea turgida.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Biodiversity Conservation
Sara Vicca, Daniel S. Goll, Mathilde Hagens, Jens Hartmann, Ivan A. Janssens, Anna Neubeck, Josep Penuelas, Silvia Poblador, Jet Rijnders, Jordi Sardans, Eric Struyf, Philipp Swoboda, Jan Willem van Groenigen, Arthur Vienne, Erik Verbruggen
Summary: Enhanced silicate weathering (ESW) has been proposed as a negative emission technology with significant climate change mitigation potential. However, differences between lab and real soil conditions, as well as the impact of biological processes on weathering rates, may influence the effectiveness of ESW in sequestering CO2 and reducing greenhouse gas emissions. It is crucial to include biological factors in ESW research to fully understand its climate change mitigation effects.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Huanyu Zhao, Zhihao Dong, Bin Liu, Huaye Xiong, Chaoyi Guo, Prakash Lakshmanan, Xiaozhong Wang, Xinping Chen, Xiaojun Shi, Fusuo Zhang, Yueqiang Zhang
Summary: This study used the NUFER-Citrus-LCA model to analyze the greenhouse gas emissions, carbon sequestration, and ways to achieve carbon neutrality in China's citrus production system. The results showed significant variations in emissions among different provinces, with Guangdong province having the highest emissions. Nitrogen fertilizer accounted for 71.5% of the total emissions. By optimizing nitrogen fertilizer management, replacing 50% of chemical fertilizer with organic fertilizer, and using cover crops, there is potential to transform China's citrus production system from a carbon source to a carbon sink. Implementation of this crop management model is crucial for achieving carbon neutrality in the Chinese citrus industry.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Review
Geochemistry & Geophysics
Jiajie Li, Michael Hitch, Ian M. Power, Yueyi Pan
Article
Engineering, Environmental
Jenine McCutcheon, Ian M. Power, Jeremiah Shuster, Anna L. Harrison, Gregory M. Dipple, Gordon Southam
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Geochemistry & Geophysics
Ian M. Power, Anna L. Harrison, Gregory M. Dipple, Sasha Wilson, Shaun L. L. Barker, Stewart J. Fallon
GEOCHIMICA ET COSMOCHIMICA ACTA
(2019)
Article
Multidisciplinary Sciences
M. Azizur Rahman, Jochen Halfar, Walter H. Adey, Merinda Nash, Carlos Paulo, Maria Dittrich
SCIENTIFIC REPORTS
(2019)
Article
Geosciences, Multidisciplinary
Carlos Paulo, Judith A. Mckenzie, Basirath Raoof, Joerg Bollmann, Roberta Fulthorpe, Christian J. Strohmenger, Maria Dittrich
AMERICAN JOURNAL OF SCIENCE
(2020)
Article
Geology
Tamar Richards-Thomas, Cheryl McKenna-Neuman, Ian M. Power
Summary: Volcaniclastic dust particles from Iceland are characterized by substantial quantities of amorphous glass, large internal voids, and dustcoats comprised of nano-scale flakes. Their high porosity, which increases with particle diameter, generates lower particle densities than expected for solid spheres, potentially leading to a five-fold increase in expected residence time.
Article
Geochemistry & Geophysics
Carlos Paulo, Ian M. Power, Amanda R. Stubbs, Baolin Wang, Nina Zeyen, Sasha Wilson
Summary: Mineralogically complex feedstocks such as kimberlite, serpentinite, and wollastonite skarns have potential for carbon dioxide sequestration, but distinguishing between carbonate and non-carbonate sources of easily extractable cations is crucial for accurately assessing CO2 storage capacity. The study developed a new method involving batch leach tests to evaluate the reactivity of these feedstocks, with results indicating the importance of silicate dissolution and exclusion of carbonate minerals for effective CO2 sequestration.
APPLIED GEOCHEMISTRY
(2021)
Article
Geochemistry & Geophysics
Carlos Paulo, Ian M. Power, Nina Zeyen, Baolin Wang, Sasha Wilson
Summary: Passive carbonation in ultramafic mine wastes can be used to offset greenhouse gas emissions. Inverse geochemical modeling is a viable alternative to quantitative X-ray diffraction analysis for estimating carbonation rates and monitoring CO2 sequestration in active mines. It provides valuable insights into potential mineral reactions and carbon sequestration mechanisms in tailings.
APPLIED GEOCHEMISTRY
(2023)
Article
Astronomy & Astrophysics
Teanna M. Burnie, Ian M. Power, Carlos Paulo, Hulya Alcicek, Luisa Falcon, Yongjie Lin, Siobhan A. Wilson
Summary: Researchers examined samples from five terrestrial analogs and found that aragonite-rich samples contained microbial biomass, while hydromagnesite-rich samples did not. Aragonite forms quickly under water and is relatively stable, making it a better medium for biosignature preservation. Therefore, aragonite should be considered a valuable exploration target on Mars.
Article
Spectroscopy
Maria Dittrich, Carlos Paulo, Nicole Knabe, Heinz Sturm, Vladimir Zaitsev, Anna A. Gorbushina
Summary: This study investigated the spectroscopic and morphological features of pigments in black fungi. The Raman spectra allowed for discrimination between different pigments, providing insights into the interactions between natural fungal melanin and complex environmental matrices.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Geosciences, Multidisciplinary
Carlos Paulo, Janice P. L. Kenney, Per Persson, Maria Dittrich
Article
Chemistry, Multidisciplinary
Ian M. Power, Paul A. Kenward, Gregory M. Dipple, Mati Raudsepp
CRYSTAL GROWTH & DESIGN
(2017)