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Conversion of CO2 from power plant into CaCO3 nanoparticles

Journal Article · · Journal of Environmental Chemical Engineering (Online)
 [1];  [1];  [2];  [3];  [3];  [4];  [1];  [5];  [6];  [1]
  1. West Virginia Univ., Morgantown, WV (United States)
  2. Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
  3. National Institute for Occupational Safety and Health (NIOSH), Washington, DC (United States)
  4. Univ. of Pittsburgh, PA (United States)
  5. Longview Power, LLC, Maidsville, WV (United States)
  6. National Energy Technology Laboratory (NETL), Pittsburgh, PA (United States)
Carbon dioxide (CO2), a main composition of flue gas, represents a significant and largely untapped carbon resource. Herein, mediated by glycine (Gly), we captured and converted CO2 into CaCO3 nanoparticles using real flue gas from a power plant, demonstrating for the first time the feasibility of using amino acid to convert CO2 from power plant flue gasses. The method did not require extraneous energy and CaCO3 nanoparticles with a size of ∼25 nm were obtained. Moreover, the potential toxicity of CO2-converted nanoparticles was investigated. It appeared that both the initial CO2 loading and the carbamate percentage significantly influence the shape and size of the CaCO3 particles. Our method was also proven effective for flue gas with varying CO2 concentrations (4 %, 12 %, and 20 %). By tuning flue gas bubbling time and flow rate to achieve consistent CO2 loading and carbamate levels, we produced CaCO3 nanoparticles with similar shapes and sizes across all CO2 concentrations studied. In addition, our data indicated that although real flue gas contains small amounts of gases like oxygen and CO, they insignificantly influence the shape and size of our nanoparticles but did impact the phase component of CaCO3. In conclusion, the toxicity experiments found that CaCO3 nanoparticles produced from both real flue gas and simulated flue gas exhibited concentration- and time-dependent effects on cell viability.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDA; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
SC0012704
Other Award/Contract Number:
2125872
2320495
2020–68012–31881
OSTI ID:
3022507
Report Number(s):
BNL--229494-2026-JAAM
Journal Information:
Journal of Environmental Chemical Engineering (Online), Journal Name: Journal of Environmental Chemical Engineering (Online) Journal Issue: 1 Vol. 14; ISSN 2213-3437
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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