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Chen KW, Zhou XY, Dai XJ, Chen YT, Li SX, Gong CH, Wang P, Mao P, Jiao Y, Chen K, Yang Y. Sulfur vacancy-rich bismuth sulfide nanowire derived from CAU-17 for radioactive iodine capture in complex environments: Performance and intrinsic mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134584. [PMID: 38761762 DOI: 10.1016/j.jhazmat.2024.134584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/27/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024]
Abstract
Effective capture and immobilization of volatile radioiodine from the off-gas of post-treatment plants is crucial for nuclear safety and public health, considering its long half-life, high toxicity, and environmental mobility. Herein, sulfur vacancy-rich Vs-Bi2S3@C nanocomposites were systematically synthesized via a one-step solvothermal vulcanization of CAU-17 precursor. Batch adsorption experiments demonstrated that the as-synthesized materials exhibited superior iodine adsorption capacity (1505.8 mg g-1 at 200 °C), fast equilibrium time (60 min), and high chemisorption ratio (91.7%), which might benefit from the nanowire structure and abundant sulfur vacancies of Bi2S3. Furthermore, Vs-Bi2S3@C composites exhibited excellent iodine capture performance in complex environments (high temperatures, high humidity and radiation exposure). Mechanistic investigations revealed that the I2 capture by fabricated materials primarily involved the chemical adsorption between Bi2S3 and I2 to form BiI3, and the interaction of I2 with electrons provided by sulfur vacancies to form polyiodide anions (I3-). The post-adsorbed iodine samples were successfully immobilized into commercial glass fractions in a stable form (BixOyI), exhibiting a normalized iodine leaching rate of 3.81 × 10-5 g m-2 d-1. Overall, our work offers a novel strategy for the design of adsorbent materials tailed for efficient capture and immobilization of volatile radioiodine.
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Affiliation(s)
- Kai-Wei Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xin-Yu Zhou
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiao-Jun Dai
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yi-Ting Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Shu-Xuan Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Chun-Hui Gong
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Peng Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ping Mao
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Yan Jiao
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Kai Chen
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Yi Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China.
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Cai W, Chen C, Bao C, Gu JN, Li K, Jia J. Nitrate reduction to nitrogen in wastewater using mesoporous carbon encapsulated Pd-Cu nanoparticles combined with in-situ electrochemical hydrogen evolution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 362:121346. [PMID: 38824884 DOI: 10.1016/j.jenvman.2024.121346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/29/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
The conversion of NO3--N to N2 is of great significance for zero discharge of industrial wastewater. Pd-Cu hydrogenation catalysis has high application prospects for the reduction of NO3--N to N2, but the existing form of Pd-Cu, the Pd-Cu mass ratio and the H2 evolution rate can affect the coverage of active hydrogen (*H) on the surface of Pd, thereby affecting N2 selectivity. In this work, mesoporous carbon (MC) is used as support to disperse Pd-Cu catalyst and is applied in an in-situ electrocatalytic H2 evolution system for NO3--N removal. The Pd-Cu particles with the average size of 6 nm are uniformly encapsulated in the mesopores of MC. Electrochemical in-situ H2 evolution can not only reduce the amount of H2 used, but the H2 bubbles can also be efficiently dispersed when PPy coated nickel foam (PPy/NF) is used as cathode. Moreover, the mesoporous structure of MC can further split H2 bubbles, reducing the coverage of *H on Pd. The highest 77% N2 selectivity and a relatively faster NO3--N removal rate constant (0.10362 min-1) can be achieved under the optimal conditions, which is superior to most reported Pd-Cu catalytic systems. The prepared catalyst is further applied to the denitrification of actual deplating wastewater. NO3--N with the initial concentration of 650 mg L-1 can be completely removed after 180 min of treatment, and the TN removal can be maintained at 72%.
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Affiliation(s)
- Wenlue Cai
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Chen Chen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Chenyu Bao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Jia-Nan Gu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Kan Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
| | - Jinping Jia
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
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Tian Z, Hao Y, Chee TS, Cai H, Zhu L, Duan T, Xiao C. Hollow Core-Shell Bismuth Based Al-Doped Silica Materials for Powerful Co-Sequestration of Radioactive I 2 and CH 3I. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308451. [PMID: 38059738 DOI: 10.1002/smll.202308451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/30/2023] [Indexed: 12/08/2023]
Abstract
Developing pure inorganic materials capable of efficiently co-removing radioactive I2 and CH3I has always been a major challenge. Bismuth-based materials (BBMs) have garnered considerable attention due to their impressive I2 sorption capacity at high-temperature and cost-effectiveness. However, solely relying on bismuth components falls short in effectively removing CH3I and has not been systematically studied. Herein, a series of hollow mesoporous core-shell bifunctional materials with adjustable shell thickness and Si/Al ratio by using silica-coated Bi2O3 as a hard template and through simple alkaline-etching and CTAB-assisted surface coassembly methods (Bi@Al/SiO2) is successfully synthesized. By meticulously controlling the thickness of the shell layer and precisely tuning of the Si/Al ratio composition, the synthesis of BBMs capable of co-removing radioactive I2 and CH3I for the first time, demonstrating remarkable sorption capacities of 533.1 and 421.5 mg g-1, respectively is achieved. Both experimental and theoretical calculations indicate that the incorporation of acid sites within the shell layer is a key factor in achieving effective CH3I sorption. This innovative structural design of sorbent enables exceptional co-removal capabilities for both I2 and CH3I. Furthermore, the core-shell structure enhances the retention of captured iodine within the sorbents, which may further prevent potential leakage.
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Affiliation(s)
- Zhenjiang Tian
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yuxun Hao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Tien-Shee Chee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - He Cai
- Department of Earth and Environmental Sciences, The University of Manchester, 176 Oxford Rd, Manchester, M13 9QQ, UK
| | - Lin Zhu
- School of National Defense Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Tao Duan
- School of National Defense Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Chengliang Xiao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou, 310058, P. R. China
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Wang C, Miao C, Han S, Yao H, Zhong Q, Ma S. Highly efficient capture of iodine vapor by [Mo 3S 13] 2- intercalated layered double hydroxides. J Colloid Interface Sci 2024; 659:550-559. [PMID: 38198932 DOI: 10.1016/j.jcis.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/27/2023] [Accepted: 01/02/2024] [Indexed: 01/12/2024]
Abstract
From the swollen LDH, bulky [Mo3S13]2- anions are facilely introduced into the LDH interlayers to assemble the Mo3S13-LDH composite, which exhibits excellent iodine capture performance and good irradiation resistance. The positive-charged LDH layers may disperse the [Mo3S13]2- uniformly within the interlayers, providing abundant adsorption sites for effectively trapping iodine. The Mo-S bond serving as a soft Lewis base has strong affinity to I2 with soft Lewis acidic characteristic, which is conducive to improvement of iodine capture via physical sorption. Besides, chemisorption has a significant contribution to the iodine adsorption. The S22-/S2- in [Mo3S13]2- can reduce the I2 to [I3]- ions, which are facilely fixed within the LDH gallery in virtue of electrostatic attraction. Meanwhile, the S22-/S2- themselves are oxidized to S8 and SO42-, while Mo4+ is oxidized (by O2 in air) to Mo6+, which combines with SO42- forming amorphous Mo(SO4)3. With the collective interactions of chemical and physical adsorption, the Mo3S13-LDH demonstrates an extremely large iodine adsorption capacity of 1580 mg/g. Under γ radiation, the structure of Mo3S13-LDH well maintains and iodine adsorption capability does not deteriorate, indicating the good irradiation resistance. This work provides an important reference to tailor cost-effective sorbents for trapping iodine from radioactive nuclear wastes.
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Affiliation(s)
- Chaonan Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Chang Miao
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Senkai Han
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Huiqin Yao
- College of Basic Medicine, Ningxia Medical University, Yinchuan 750004, China.
| | - Qiangqiang Zhong
- Third Institute of Oceanography, Ministry of Natural Resource, Xiamen 361005, China.
| | - Shulan Ma
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China.
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Lee JM, Kang M, Kim JS, Bae JY. Amine-Impregnated Dendritic Mesoporous Silica for the Adsorption of Formaldehyde. MICROMACHINES 2023; 15:30. [PMID: 38258149 PMCID: PMC10818587 DOI: 10.3390/mi15010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024]
Abstract
To adsorb and remove formaldehyde, which is a harmful volatile organic chemical (VOC) detected indoors, an alkylamine was introduced into the substrate as a formaldehyde adsorbent. In this study, Tetraethylenepentaamine (TEPA) was introduced into the mesoporous silica using the amine impregnation method. Since the impregnated alkylamine can block the pores of the silica substrate, the pore size and pore volume are very important factors for its use as a substrate for an adsorbent. Focusing on the substrate's pore properties, Santa Barbara Amorphous-15 (SBA-15) was chosen as a conventional one-dimensional pore-structured mesoporous silica, and dendritic mesoporous silica (DMS) as a three-dimensional pore-structured mesoporous silica. To 1 g each of silica substrate DMS and SBA-15, 0, 0.5, 1.5, and 2.5 g of TEPA were introduced. A fixed concentration and amount of formaldehyde gas was flowed through the adsorbent and then the adsorbent was changed to the 2,4-Dinitrophenylhydrazine (2,4-DNPH) cartridge to adsorb the remaining formaldehyde. According to the methods recommended by the World Health Organization (WHO) and National Institute for Occupational Safety & Health (NIOSH), the formaldehyde captured by 2,4-DNPH was analyzed using high-performance liquid chromatography (HPLC). A comparison of DMS and SBA-15 in the amine impregnation method shows that not only surface area, but also large pore size and high pore volume, contribute to the formaldehyde adsorption ability.
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Affiliation(s)
- Ji Myeong Lee
- Department of Chemistry, Keimyung University, Daegu 42601, Republic of Korea; (J.M.L.); (M.K.)
| | - Misun Kang
- Department of Chemistry, Keimyung University, Daegu 42601, Republic of Korea; (J.M.L.); (M.K.)
| | - June-Seo Kim
- Division of Nanotechnology, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
| | - Jae Young Bae
- Department of Chemistry, Keimyung University, Daegu 42601, Republic of Korea; (J.M.L.); (M.K.)
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Wang C, Yao H, Cai Z, Han S, Shi K, Wu Z, Ma S. [Sn 2S 6] 4- Anion-Intercalated Layered Double Hydroxides for Highly Efficient Capture of Iodine. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37906218 DOI: 10.1021/acsami.3c11367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The development of low-cost and high-efficiency iodine sorbents is of great significance for the control of nuclear pollution. In this work, we intercalate the tin sulfide cluster of [Sn2S6]4- to Mg/Al-type layered double hydroxides to obtain Sn2S6-LDH, which exhibits highly efficient capture performance of iodine vapor and iodine in solutions. The dispersion effect of the positively charged LDH layers contributes to the adequate exposure of [Sn2S6]4- anions, providing plentiful adsorption sites. For iodine vapor, Sn2S6-LDH showed an extremely large iodine capture capacity of 2954 mg/g with a large contribution from physisorption. For iodine in solutions, a significantly large sorption capacity of 1308 mg/g was achieved. During iodine capture, I2 molecules were reduced to I- ions (by S2- in [Sn2S6]4-), which then reacted with Sn4+ to form SnI4, where the molar amount of captured iodine is 4-fold that of Sn. Besides, the as-reduced I- combined with I2 again to generate [I3]-, which then entered the LDH interlayers to maintain electric neutrality. While reducing iodine, S2- itself in [Sn2S6]4- was oxidized to S8, which further combined with SnI4 to form a novel compound of SnI4(S8)2. The excellent iodine capture capability endows Sn2S6-LDH with a promising application in trapping radioactive iodine.
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Affiliation(s)
- Chaonan Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Huiqin Yao
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Zidan Cai
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Senkai Han
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Keren Shi
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Zhenglong Wu
- Analytical and Testing Center, Beijing Normal University, Beijing 100875, China
| | - Shulan Ma
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
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Cao J, Duan S, Zhao Q, Chen G, Wang Z, Liu R, Zhu L, Duan T. Three-Dimensional-Network-Structured Bismuth-Based Silica Aerogel Fiber Felt for Highly Efficient Immobilization of Iodine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12910-12919. [PMID: 37649325 DOI: 10.1021/acs.langmuir.3c02041] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The effective capture and deposition of radioactive iodine in the spent fuel reprocessing process is of great importance for nuclear safety and environmental protection. Three-dimensional (3D) fiber felt with structural diversity and tunability is applied as an efficient adsorbent with easy separation for iodine capture. Here, a bismuth-based silica aerogel fiber felt (Bi@SNF) was synthesized using a facile hydrothermal method. Abundant and homogeneous Bi nanoparticles greatly enhanced the adsorption and immobilization of iodine. Notably, Bi@SNF demonstrated a high capture capacity of 982.9 mg/g by forming stable BiI3 and Bi5O7I phases, which was about 14 times higher than that of the unloaded material. Fast uptake kinetics and excellent resistance to nitric acid and radiation were exhibited as a result of the 3D porous interconnected network and silica aerogel fiber substrate. Adjustable size and easy separation and recovery give the material potential as a radioactive iodine gas capture material.
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Affiliation(s)
- Jiaxin Cao
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Siyihan Duan
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Qian Zhao
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Guangyuan Chen
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Zeru Wang
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Ruixi Liu
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Lin Zhu
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
| | - Tao Duan
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, Sichuan 610299, People's Republic of China
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, Sichuan 621010, People's Republic of China
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Chee TS, Lee S, Ng WJ, Akmal M, Ryu HJ. Bi 0-Reduced Graphene Oxide Composites for the Enhanced Capture and Cold Immobilization of Off-Gas Radioactive Iodine. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40438-40450. [PMID: 37581564 DOI: 10.1021/acsami.3c06761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Radioactive waste management is critical for maintaining the sustainability of nuclear fuel cycles. In this study, we propose a novel bismuth-based reduced graphene oxide (Bi0-rGO) composite for the immobilization of off-gas radioactive iodine. This material synthesized via a solvothermal route exhibited a low surface area (2.96 m2/g) combined with a maximum iodine sorption capacity of 1228 ± 25 mg/g at 200 °C. The iodine sorbent was mixed with Bi2O3 powder and distilled water to fabricate waste matrices, which were cold-sintered at 300 °C under a uniaxial pressure of 500 MPa for 20 min to achieve a relative density of ∼98% and Vickers hardness of 1.3 ± 0.1 GPa. The utilized methodology reduced the iodine leaching rate by approximately 3 orders of magnitude through the formation of a chemically durable iodine-bearing waste form (BiOI). This study demonstrates the high potential of Bi0-rGO as an innovative solution for the immobilization of radioactive waste at relatively low temperatures.
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Affiliation(s)
- Tien-Shee Chee
- Department of Materials Science and Engineering, KAIST, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Sujeong Lee
- Department of Materials Science and Engineering, KAIST, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Woei Jer Ng
- Department of Nuclear and Quantum Engineering, KAIST, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Muhammad Akmal
- Department of Materials Science and Engineering, KAIST, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Ho Jin Ryu
- Department of Materials Science and Engineering, KAIST, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Nuclear and Quantum Engineering, KAIST, Yuseong-gu, Daejeon 34141, Republic of Korea
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Baskaran K, Elliott C, Ali M, Moon J, Beland J, Cohrs D, Chong S, Riley BJ, Chidambaram D, Carlson K. Effects of NO 2 aging on bismuth nanoparticles and bismuth-loaded silica xerogels for iodine capture. JOURNAL OF HAZARDOUS MATERIALS 2023; 446:130644. [PMID: 36587601 DOI: 10.1016/j.jhazmat.2022.130644] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
The capture of long-lived radioactive iodine (129I) from oxidizing off-gasses produced from reprocessing used nuclear fuel is paramount to human health and environmental safety. Bismuth has been investigated as a viable iodine getter but the phase stability of bismuth-based sorbents in an oxidizing environment have not yet been researched. In the current work, bismuth nanoparticle-based sorbents, as free particles (Bi-NPs) and embedded within silica xerogel monoliths made with a porogen (TEO-5), were exposed to I2(g) before and after aging in 1 v/v% NO2 at 150 °C. For unaged sorbents, BiI3 was the dominant phase after iodine capture with 8-30 mass% BiOI present due to native Bi2O3 on the surface of the unaged nanoparticles. After 3 h of aging, 82 mass% of the Bi-NPs was converted to Bi2O3 with only a small amount of iodine captured as BiOI (18 mass%). After aging TEO-5 for 3 h, iodine was captured as both BiI3 (26 %) and BiOI (74 %) and no Bi2O3 was detected.". Additionally, bismuth lining the micrometer-scale pores in the TEO-5 led to enhanced iodine capture. In a subsequent exposure of the sorbents to NO2 (secondary aging), all BiI3 converted to BiOI. Thus, direct capture of iodine as BiOI is desired (over BiI3) to minimize loss of iodine after capture.
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Affiliation(s)
- Karthikeyan Baskaran
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA
| | - Casey Elliott
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA
| | - Muhammad Ali
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA
| | - Jeremy Moon
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA
| | - Jade Beland
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA
| | - Dave Cohrs
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA
| | - Saehwa Chong
- Pacific Northwest National Laboratory (PNNL), Richland, WA 99532, USA
| | - Brian J Riley
- Pacific Northwest National Laboratory (PNNL), Richland, WA 99532, USA
| | - Dev Chidambaram
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA; Nevada Institute for Sustainability, University of Nevada, Reno, Reno, NV 89557-0388, USA
| | - Krista Carlson
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV 89557, USA.
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Highly Efficient Iodine Capture by Hydrophobic Bismuth-based Chrysotile Membrane from Humid Gas Streams. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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11
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Hao Y, Tian Z, Liu C, Xiao C. Recent advances in the removal of radioactive iodine by bismuth-based materials. Front Chem 2023; 11:1122484. [PMID: 36762197 PMCID: PMC9902955 DOI: 10.3389/fchem.2023.1122484] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/25/2023] Open
Abstract
Nowadays, the demand for nuclear power is continue increasing due to its safety, cleanliness, and high economic benefits. Radioactive iodine from nuclear accidents and nuclear waste treatment processes poses a threat to humans and the environment. Therefore, the capture and storage of radioactive iodine are vital. Bismuth-based (Bi-based) materials have drawn much attention as low-toxicity and economical materials for removing and immobilizing iodine. Recent advances in adsorption and immobilization of vapor iodine by the Bi-based materials are discussed in this review, in addition with the removal of iodine from solution. It points out the neglected areas in this research topic and provides suggestions for further development and application of Bi-based materials in the removal of radioactive iodine.
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Affiliation(s)
- Yuxun Hao
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Zhenjiang Tian
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Chuanying Liu
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China,*Correspondence: Chuanying Liu, ; Chengliang Xiao,
| | - Chengliang Xiao
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China,*Correspondence: Chuanying Liu, ; Chengliang Xiao,
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12
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Zhao Q, Liao C, Chen G, Liu R, Wang Z, Xu A, Ji S, Shih K, Zhu L, Duan T. In Situ Confined Synthesis of a Copper-Encapsulated Silicalite-1 Zeolite for Highly Efficient Iodine Capture. Inorg Chem 2022; 61:20133-20143. [PMID: 36426769 DOI: 10.1021/acs.inorgchem.2c03582] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Effective capture of radioactive iodine is highly desirable for decontamination purposes in spent fuel reprocessing. Cu-based adsorbents with a low cost and high chemical affinity for I2 molecules act as a decent candidate for iodine elimination, but the low utilization and stability remain a significant challenge. Herein, a facile in situ confined synthesis strategy is developed to design and synthesize a copper-encapsulated flaky silicalite-1 (Cu@FSL-1) zeolite with a thickness of ≤300 nm. The maximum iodine uptake capacity of Cu@FSL-1 can reach 625 mg g-1 within 45 min, which is 2 times higher than that of a commercial silver-exchanged zeolite even after nitric acid and NOX treatment. The Cu nanoparticles (NPs) confined within the zeolite exert superior iodine adsorption and immobilization properties as well as high stability and fast adsorption kinetics endowed by the all-silica zeolite matrix. This study provides new insight into the design and controlled synthesis of zeolite-confined metal adsorbents for efficient iodine capture from gaseous radioactive streams.
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Affiliation(s)
- Qian Zhao
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Changzhong Liao
- Key Laboratory of New Processing for Nonferrous Metal and Materials (Ministry of Education), School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Guangyuan Chen
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Ruixi Liu
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Zeru Wang
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Anhu Xu
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Shiyin Ji
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong 852, HKSAR, China
| | - Lin Zhu
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Tao Duan
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
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13
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Liu S, Zeng Y, Liu J, Li J, Peng H, Xie H, Zou H, Xiao C, Hua X, Bao J, Xian L, Li Y, Chi F. Efficient capture and stable storage of radioactive iodine by bismuth-based ZIF-8 derived carbon materials as adsorbents. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Xian Q, Xiao X, Yu J, Gan Y, Chen L, He X, Wang E, Dan H, Zhu L, Ding Y, Duan T. High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi 2O 3 as a Stabilizer under a N 2 Atmosphere. Inorg Chem 2022; 61:19633-19641. [DOI: 10.1021/acs.inorgchem.2c03601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Qiang Xian
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Xin Xiao
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Jiaping Yu
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Yi Gan
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Li Chen
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Xinmiao He
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Enchao Wang
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Hui Dan
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Lin Zhu
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang621010, China
- State Key Laboratory of Environment-friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang621010, China
| | - Yi Ding
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
| | - Tao Duan
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang621010, China
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang621010, China
- State Key Laboratory of Environment-friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang621010, China
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15
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Chen L, Xiao X, Yu J, Gan Y, Chen Q, Lu C, Dan H, Ding Y. Efficient removal of neodymium from aqueous solution by amino-functionalized SBA-15. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08635-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Hu H, Chen F, Zhang Z, Liu D, Liang Y, Chen Z. Heterometallic Metal-Organic Framework Based on [Cu4I4] and [Hf6O8] Clusters for Adsorption of Iodine. Front Chem 2022; 10:864131. [PMID: 35572109 PMCID: PMC9098963 DOI: 10.3389/fchem.2022.864131] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/05/2022] [Indexed: 12/30/2022] Open
Abstract
Heterometallic metal-organic framework (MOF) as a kind of porous material is very important because of its excellent properties in catalysis, magnetic, sensor, and adsorption fields, but the reasonable design and syntheses of these are still challenging. Herein, we prepared one heterometallic MOF with the formula [Hf6(μ3-OH)8(OH)8][(Cu4I4) (ina)4]2·22DMF (NS-1, ina = isonicotinate). Single-crystal X-ray diffraction analysis revealed that NS-1 is a three-dimensional network with flu topology, constructed from 8-connected [Hf6(μ3-OH)8(OH)8]8+ and 4-connected [Cu4I4] clusters as second building units (SBUs). To our best knowledge, NS-1 is a rare example with two different metal clusters as SBUs in heterometallic Hf-based MOFs. Interestingly, NS-1 exhibits a reversible adsorption performance for iodine in the cyclohexane solution, the adsorption kinetics fits well with the pseudo-second-order equation, and the Freundlich model relating to multilayer adsorption better describes the process of iodine absorption.
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Affiliation(s)
| | | | | | | | | | - Zilu Chen
- *Correspondence: Huancheng Hu, ; Zilu Chen,
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17
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Riley BJ, Chong S, Schmid J, Marcial J, Nienhuis ET, Bera MK, Lee S, Canfield NL, Kim S, Derewinski MA, Motkuri RK. Role of Zeolite Structural Properties toward Iodine Capture: A Head-to-head Evaluation of Framework Type and Chemical Composition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:18439-18452. [PMID: 35412785 DOI: 10.1021/acsami.2c01179] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
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.
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Affiliation(s)
- Brian J Riley
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Saehwa Chong
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Julian Schmid
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - José Marcial
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Emily T Nienhuis
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Mrinal K Bera
- NSF's ChemMatCARS, Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Sungsik Lee
- X-Ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Nathan L Canfield
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Sungmin Kim
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Miroslaw A Derewinski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239 Cracow, Poland
| | - Radha Kishan Motkuri
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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18
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Preparation of Amino-Functionalized Mesoporous SBA-15 Nanoparticles and the Improved Adsorption of Tannic Acid in Wastewater. NANOMATERIALS 2022; 12:nano12050791. [PMID: 35269279 PMCID: PMC8912468 DOI: 10.3390/nano12050791] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 11/28/2022]
Abstract
Ordered mesoporous Santa Barbara amorphous (SBA-15) materials have high surface areas and are widely used in adsorption, separation, filtration, and heterogeneous catalytic processes. However, SBA-15 surfaces contain hydroxyl groups that are unsuited to the adsorption of organic pollutants; thus, SBA-15 must be chemically modified to promote its adsorption activity. In this study, amino-functionalized nanoporous SBA-15 was fabricated by employing sodium silicate as a precursor. The structural characteristics of the prepared composites were examined using thermogravimetric analysis, X-ray diffraction, Fourier transform infrared spectrometry, field-emission scanning electron microscopy, transmission electron microscopy, and surface area analysis. The prepared SBA-15 had a large pore size (6.46–7.60 nm), large pore volume (1.037–1.105 cm3/g), and high surface area (546–766 m2/g). Functionalization caused a reduction in the SBA-15 pore volume and surface area, whereas amino groups that promoted an interaction between adsorbates and solids facilitated solute adsorption. The adsorption of tannic acid (TA) onto amino-modified silica composites (SBA-15 and 3-aminopropyltriethoxysilane (SBA-15/APTES) and SBA-15 and pentaethylenehexamine (SBA-15/PEHA)) was studied. Their adsorption capacities were affected by solution temperature, solution pH, agitation speed, adsorbent dosage, and initial TA concentration. The maximum adsorption capacities for SBA-15/APTES and SBA-15/PEHA were 485.18 and 413.33 mg/g, respectively, with SBA-15/APTES exhibiting ultrafast removal of TA (98.61% removal rate at 15 min). In addition, this study explored the thermodynamics, adsorption isotherms, and kinetics. A comparison of two types of amino-functionalized SBA-15 was used for the first time to adsorb TA, which providing valuable information on TA adsorption on high adsorption capacity materials in water media.
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