skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Role of Zeolite Structural Properties toward Iodine Capture: A Head-to-head Evaluation of Framework Type and Chemical Composition

Journal Article · · ACS Applied Materials & Interfaces

This study evaluated zeolite-based sorbents for iodine gas [I2(g)] capture. Based on the framework structures and porosities, five zeolites, including two faujasite (FAU), one ZSM-5 (MFI), one mesoMFI, one ZSM-22 (TON), as well as two mesoporous materials, were evaluated for I2(g) capture at room temperature and 150 °C in an iodine-saturated environment. From these preliminary studies, the three best-performing zeolites were ion-exchanged with Ag+ and evaluated for I2(g) capture under similar conditions. Energy-dispersive X-ray spectroscopy data suggest that Ag-FAU frameworks were the materials with the highest capacity for I2(g) in this study, showing ~3× higher adsorption compared to Ag-mordenite (Ag-MOR) at room temperature, but X-ray diffraction measurements show that the faujasite structure collapsed during the adsorption studies because of dealumination. The Ag-MFI zeolites are decent sorbents in real-life applications, showing both good sorption capacities and higher stability. In-depth analyses and characterizations, including synchrotron X-ray absorption spectroscopy, revealed the influence of structural and chemical properties of zeolites on the performance for iodine adsorption from the gas phase.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1872436
Report Number(s):
PNNL-SA-163213
Journal Information:
ACS Applied Materials & Interfaces, Vol. 14, Issue 16
Country of Publication:
United States
Language:
English

References (54)

Materials and processes for the effective capture and immobilization of radioiodine: A review journal March 2016
Radioiodine in the atmosphere after the Fukushima Dai-ichi nuclear accident journal January 2016
Thyroid cancer risk in Belarus among children and adolescents exposed to radioiodine after the Chornobyl accident journal November 2010
Thyroid doses for evacuees from the Fukushima nuclear accident journal July 2012
Iodine Adsorption in Metal Organic Frameworks in the Presence of Humidity journal March 2018
Capture of Volatile Iodine, a Gaseous Fission Product, by Zeolitic Imidazolate Framework-8 journal August 2011
Two-dimensional covalent–organic frameworks for ultrahigh iodine capture journal January 2020
Structure–Activity Relationships between the State of Silver on Different Supports and Their I2 and CH3I Adsorption Properties journal May 2021
Evaluation of Silver Zeolites Sorbents Toward Their Ability to Promote Stable CH 3 I Storage as AgI Precipitates journal July 2017
Highly Efficient Enrichment of Volatile Iodine by Charged Porous Aromatic Frameworks with Three Sorption Sites journal August 2015
Development of bismuth-mordenite adsorbents for iodine capture from off-gas streams journal July 2020
Bismuth-embedded SBA-15 mesoporous silica for radioactive iodine capture and stable storage journal October 2015
Silver-Loaded Aluminosilicate Aerogels As Iodine Sorbents journal September 2017
Iodine Capture with Mechanically Robust Heat-Treated Ag–Al–Si–O Xerogel Sorbents journal April 2021
Comprehensive comparison of bismuth and silver functionalized nickel foam composites in capturing radioactive gaseous iodine journal September 2021
Novel synthesis of bismuth-based adsorbents for the removal of 129I in off-gas journal February 2015
Manipulating Pore Topology and Functionality to Promote Fluorocarbon-Based Adsorption Cooling journal December 2021
Porous Covalent Organic Polymers for Efficient Fluorocarbon‐Based Adsorption Cooling journal June 2021
Synthesis Strategies for Ultrastable Zeolite GIS Polymorphs as Sorbents for Selective Separations journal September 2016
Rigid Ladder-Type Porous Polymer Networks for Entropically Favorable Gas Adsorption journal November 2019
Molecular Insight into Fluorocarbon Adsorption in Pore Expanded Metal–Organic Framework Analogs journal January 2020
Pore-Engineered Metal–Organic Frameworks with Excellent Adsorption of Water and Fluorocarbon Refrigerant for Cooling Applications journal July 2017
Hierarchically Porous Carbon Materials for CO 2 Capture: The Role of Pore Structure journal January 2018
Dynamic Adsorption of CO 2 /N 2 on Cation-Exchanged Chabazite SSZ-13: A Breakthrough Analysis journal April 2018
Synthesis and characterization of iodosodalite journal March 2017
Glass-bonded iodosodalite waste form for immobilization of 129I journal June 2018
Capture of iodine from the vapour phase and immobilisation as sodalite journal December 2015
Evaluation of volatile iodine trapping in presence of contaminants: A periodic DFT study on cation exchanged-faujasite journal February 2017
Glass binder development for a glass-bonded sodalite ceramic waste form journal June 2017
Development and evaluation of a silver mordenite composite sorbent for the partitioning of xenon from krypton in gas compositions journal December 2015
Airborne elemental iodine loading capacities of metal zeolites and a method for recycling silver zeolite report July 1977
Radioactive Iodine Capture in Silver-Containing Mordenites through Nanoscale Silver Iodide Formation journal July 2010
Adsorption of iodine on hydrogen-reduced silver-exchanged mordenite: Experiments and modeling journal August 2016
Evaluation of Getter Metals in Na–Al–Si–O Aerogels and Xerogels for the Capture of Iodine Gas journal April 2020
A Highly Efficient Inorganic Absorber for Airborne Iodine Species (Silver Zeolite Development Studies). report January 1968
An in situ calorimetric study of the synthesis of FAU zeolite journal August 2001
Elementary Steps of Faujasite Formation Followed by in Situ Spectroscopy journal January 2018
Conversion of Methanol to Olefins over H-ZSM-5 Zeolite: Reaction Pathway Is Related to the Framework Aluminum Siting journal September 2016
Synthesis of hierarchical ZSM-5 zeolites by solid-state crystallization and their catalytic properties journal May 2017
Thermal stability and siting of aluminum in isostructural ZSM-22 and Theta-1 zeolites journal May 2006
Isomerization and formation of xylenes over ZSM-22 and ZSM-23 zeolites journal April 1989
Nonionic Triblock and Star Diblock Copolymer and Oligomeric Surfactant Syntheses of Highly Ordered, Hydrothermally Stable, Mesoporous Silica Structures journal June 1998
Composite SBA-15/MFI Type Materials: Preparation, Characterization and Catalytic Performance journal November 2008
Fundamental parameters line profile fitting in laboratory diffractometers journal January 2004
Facile synthesis of novel Bi0-SBA-15 adsorbents by an improved impregnation reduction method for highly efficient capture of iodine gas journal February 2022
X-ray Absorption Spectroscopy Investigation of Iodine Capture by Silver-Exchanged Mordenite journal April 2017
Structural Evolution of Ag-LEV Zeolite upon Heating: An In Situ Single-Crystal X-ray Diffraction (SC-XRD) and X-ray Absorption Spectroscopy (XAS) Study journal December 2020
Gaseous Iodine Sorbents: A Comparison between Ag-Loaded Aerogel and Xerogel Scaffolds journal May 2020
Competitive I 2 Sorption by Cu-BTC from Humid Gas Streams journal June 2013
Iodine Capture Using Zr-Based Metal–Organic Frameworks (Zr-MOFs): Adsorption Performance and Mechanism journal April 2020
Exceptional Iodine Capture in 2D Covalent Organic Frameworks journal May 2018
Chalcogen-Based Aerogels As Sorbents for Radionuclide Remediation journal June 2013
Chalcogenide Aerogels as Sorbents for Radioactive Iodine journal March 2015
Iodine Vapor Reactions with Pure Metal Wires at Temperatures of 100–139 °C in Air journal November 2021