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Rabbani MG, Sasse RK, Behera S, Jena P, Liu J, Thallapally PK, Islamoglu T, Shehab MK, Kaid MM, Farha OK, El-Kaderi HM. High-Performance Porous Organic Polymers for Environmental Remediation of Toxic Gases. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8024-8034. [PMID: 38574282 PMCID: PMC11025134 DOI: 10.1021/acs.langmuir.3c03980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/06/2024]
Abstract
Sulfur dioxide (SO2) is a harmful acidic gas generated from power plants and fossil fuel combustion and represents a significant health risk and threat to the environment. Benzimidazole-linked polymers (BILPs) have emerged as a promising class of porous solid adsorbents for toxic gases because of their chemical and thermal stability as well as the chemical nature of the imidazole moiety. The performance of BILPs in SO2 capture was examined by synergistic experimental and theoretical studies. BILPs exhibit a significantly high SO2 uptake of up to 8.5 mmol g-1 at 298 K and 1.0 bar. The density functional theory (DFT) calculations predict that this high SO2 uptake is due to the dipole-dipole interactions between SO2 and the functionalized polymer frames through O2S(δ+)···N(δ-)-imine and O═S═O(δ-)···H(δ+)-aryl and intermolecular attraction between SO2 molecules (O═S═O(δ-)···S(δ+)O2). Moderate isosteric heats of adsorption (Qst ≈ 38 kJ mol-1) obtained from experimental SO2 uptake studies are well supported by the DFT calculations (≈40 kJ mol-1), which suggests physisorption processes enabling rapid adsorbent regeneration for reuse. Repeated adsorption experiments with almost identical SO2 uptake confirm the easy regeneration and robustness of BILPs. Moreover, BILPs possess very high SO2 adsorption selectivity at low concentration over carbon dioxide (CO2), methane (CH4), and nitrogen (N2): SO2/CO2, 19-24; SO2/CH4, 118-113; SO2/N2, 600-674. This study highlights the potential of BILPs in the desulfurization of flue gas or other gas mixtures through capturing trace levels of SO2.
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Affiliation(s)
- Mohammad G. Rabbani
- Department
of Chemistry, University of Wisconsin-Platteville, Platteville, Wisconsin 53818, United States
| | - Riley K. Sasse
- Department
of Chemistry, University of Wisconsin-Platteville, Platteville, Wisconsin 53818, United States
- Department
of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Swayamprabha Behera
- Department
of Physics, Kennesaw State University, Marietta Campus, 1100 South Marietta
Pkwy, Marietta, Georgia 30060, United States
| | - Puru Jena
- Department
of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Jian Liu
- Pacific
Northwest National Laboratory, Richland, Washington 99352, United States
| | | | - Timur Islamoglu
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Mohammad K. Shehab
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Mahmoud M. Kaid
- Department
of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Omar K. Farha
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hani M. El-Kaderi
- Department
of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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He X, Xi Y, Lv C, He C, Kang J, Li Z. Construction of Silicone Composite With Controllable Micro-nano Structure Via In-situ Polymerization on Fiber Surface and Study on SO2 Adsorption Performance. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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3
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Han KS, Kalode PY, Koo Lee YE, Kim H, Lee L, Sung MM. A non-destructive n-doping method for graphene with precise control of electronic properties via atomic layer deposition. NANOSCALE 2016; 8:5000-5005. [PMID: 26864992 DOI: 10.1039/c5nr08016a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Graphene applications require high precision control of the Fermi level and carrier concentration via a nondestructive doping method. Here, we develop an effective n-doping technique using atomic layer deposition (ALD) of ZnO thin films on graphene through a reactive molecular layer. This ALD doping method is nondestructive, simple, and precise. The ZnO thin films on graphene are uniform, conformal, of good quality with a low density of pinholes, and finely tunable in thickness with 1 Å resolution. We demonstrate graphene transistor control in terms of the Dirac point, carrier density, and doping state as a function of the ZnO thickness. Moreover, ZnO functions as an effective thin-film barrier against air-borne water and oxygen on the graphene, resulting in extraordinary stability in air for graphene devices. ZnO ALD was also applied to other two-dimensional materials including MoS2 and WSe2, which substantially enhanced electron mobility.
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Affiliation(s)
- Kyu Seok Han
- Department of Chemistry, Hanyang University, Seoul, Republic of Korea.
| | - Pranav Y Kalode
- Department of Chemistry, Hanyang University, Seoul, Republic of Korea.
| | - Yong-Eun Koo Lee
- Department of Chemistry, Hanyang University, Seoul, Republic of Korea.
| | - Hongbum Kim
- Department of Chemistry, Hanyang University, Seoul, Republic of Korea.
| | - Lynn Lee
- Department of Chemistry, Hanyang University, Seoul, Republic of Korea.
| | - Myung Mo Sung
- Department of Chemistry, Hanyang University, Seoul, Republic of Korea.
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Sharma R, Heda LC, Sharma S. Photocatalytic Degradation of Copper(II) Palmitates in Non Aqueous Media Using ZnO as Photocatalyst. TENSIDE SURFACT DET 2015. [DOI: 10.3139/113.110404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractThe photocatalytic degradation of copper(II) soaps derived from palmitic acid was carried out in the presence of semiconductor zinc oxide (ZnO) and was observed spectrophotometrically. The operational parameters such as concentration of soap, catalyst loading, light intensity, effect of solvent were investigated during the process. The studies suggest that the rate of the photocatalytic degradation increases with the increase in the concentration of soap to 800 ppm and then continuously decreases. Rate of degradation increases with the amount of semiconductor and with further increase in the amount of semiconductor, the rate becomes constant. The degradation is maximum at a light intensity of 38 mW cm−2. An increase in the solvent polarity inhibits the rate of degradation. A tentative mechanism has also been proposed for the photocatalytic degradation of copper(II) palmitate soap.
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Selective contacts drive charge extraction in quantum dot solids via asymmetry in carrier transfer kinetics. Nat Commun 2013; 4:2272. [DOI: 10.1038/ncomms3272] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 07/09/2013] [Indexed: 11/08/2022] Open
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Liu X, Wang X, Wang Q, Andrews L. OMS, OM(η2-SO), and OM(η2-SO)(η2-SO2) Molecules (M = Ti, Zr, Hf): Infrared Spectra and Density Functional Calculations. Inorg Chem 2012; 51:7415-24. [DOI: 10.1021/ic3008987] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xing Liu
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Xuefeng Wang
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Qiang Wang
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United
States
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Haubrich J, Quiller RG, Benz L, Liu Z, Friend CM. In situ ambient pressure studies of the chemistry of NO2 and water on rutile TiO2(110). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:2445-2451. [PMID: 20070108 DOI: 10.1021/la904141k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The adsorption of NO(2) on the rutile TiO(2)(110) surface has been studied at room temperature in the pressure range from approximately 10(-8) torr to 200 mtorr using ambient pressure X-ray photoelectron spectroscopy (AP-XPS). Atomic nitrogen, chemisorbed NO(2), and NO(3) were formed, each of which saturates at pressures below approximately 10(-6) torr NO(2). Atomic nitrogen originates from decomposition of the NO(x) species. For pressures of up to 10(-3) torr, no significant change in the NO(x) surface species occurred, suggesting that environmentally relevant conditions with typical NO(2) partial pressures in the 1-100 ppb range can be modeled by ultrahigh vacuum (UHV) studies. The chemisorbed surface species can be removed by in situ annealing in UHV: all of the NO(x) species disappear around 400 K, whereas the N 1s signal associated with atomic nitrogen diminishes around 580 K. At higher pressures of NO(2) (p(NO(2)) > or = 10(-6) torr), physisorbed NO(2) and adsorbed water, which was likely due to displacement from the chamber walls, appeared. The water coverage grew significantly above approximately 10(-3) torr. Concurrently with co-condensation of water and NO(2), the population of NO(3) species grew strongly. From this, we conclude that the presence of NO(2) and water leads to the formation of multilayers of nitric acid. In contrast, pure water exposure after saturation of the surface with 200 mtorr NO(2) did not lead to a growth of the NO(3) signals, implying that HNO(3) formation requires weakly adsorbed NO(2) species. These findings have important implications for environmental processes, since they confirm that oxides may facilitate nitric acid formation under ambient humidity conditions encountered in the atmosphere.
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Affiliation(s)
- Jan Haubrich
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA
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Zeng JH, Jin BB, Wang YF. Facet enhanced photocatalytic effect with uniform single-crystalline zinc oxide nanodisks. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.02.082] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Ozensoy E, Peden CHF, Szanyi J. NO2 Adsorption on Ultrathin θ-Al2O3 Films: Formation of Nitrite and Nitrate Species. J Phys Chem B 2005; 109:15977-84. [PMID: 16853027 DOI: 10.1021/jp052053e] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Interaction of NO2 with an ordered theta-Al2O3/NiAl(100) model catalyst surface was investigated using temperature programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS). The origin of the NO(x) uptake of the catalytic support (i.e., Al2O3) in a NO(x) storage catalyst is identified. Adsorbed NO2 is converted to strongly bound nitrites and nitrates that are stable on the model catalyst surface at temperatures as high as 300 and 650 K, respectively. The results show that alumina is not completely inert and may stabilize some form of NO(x) under certain catalytic conditions. The stability of the NO(x) formed by exposing the theta-Al2O3 model catalyst to NO2 adsorption increases in the order NO2 (physisorbed or N2O4) < NO2 (chemisorbed) < NO2- < NO3-.
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Affiliation(s)
- Emrah Ozensoy
- Institute for Interfacial Catalysis, Pacific Northwest National Laboratory, P. O. Box 999, MSIN K8-93, Richland, Washington 99352, USA
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Martin F, Lopez MC, Carrera P, Ramos-Barrado JR, Leinen D. XPS depth profile study of porous zirconia films deposited on stainless steel by spray pyrolysis: the problem of substrate corrosion. SURF INTERFACE ANAL 2004. [DOI: 10.1002/sia.1637] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Miletic M, Gland JL, Hass KC, Schneider WF. First-Principles Characterization of NOxAdsorption on MgO. J Phys Chem B 2003. [DOI: 10.1021/jp025996+] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rodriguez JA, Liu G, Jirsak T, Hrbek J, Chang Z, Dvorak J, Maiti A. Activation of gold on titania: adsorption and reaction of SO(2) on Au/TiO(2)(110). J Am Chem Soc 2002; 124:5242-50. [PMID: 11982389 DOI: 10.1021/ja020115y] [Citation(s) in RCA: 221] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Synchrotron-based high-resolution photoemission and first-principles density-functional slab calculations were used to study the interaction of gold with titania and the chemistry of SO(2) on Au/TiO(2)(110) surfaces. The deposition of Au nanoparticles on TiO(2)(110) produces a system with an extraordinary ability to adsorb and dissociate SO(2). In this respect, Au/TiO(2) is much more chemically active than metallic gold or stoichiometric titania. On Au(111) and rough polycrystalline surfaces of gold, SO(2) bonds weakly and desorbs intact at temperatures below 200 K. For the adsorption of SO(2) on TiO(2)(110) at 300 K, SO(4) is the only product (SO(2) + O(oxide) --> SO(4,ads)). In contrast, Au/TiO(2)(110) surfaces (theta;(Au) < or = 0.5 ML) fully dissociate the SO(2) molecule under identical reaction conditions. Interactions with titania electronically perturb gold, making it more chemically active. Furthermore, our experimental and theoretical results show quite clearly that not only gold is perturbed when gold and titania interact. The adsorbed gold, on its part, enhances the reactivity of titania by facilitating the migration of O vacancies from the bulk to the surface of the oxide. In general, the complex coupling of these phenomena must be taken into consideration when trying to explain the unusual chemical and catalytic activity of Au/TiO(2). In many situations, the oxide support can be much more than a simple spectator.
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Affiliation(s)
- José A Rodriguez
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, USA.
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13
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Schmitz PJ, Baird RJ. NO and NO2 Adsorption on Barium Oxide: Model Study of the Trapping Stage of NOx Conversion via Lean NOx Traps. J Phys Chem B 2002. [DOI: 10.1021/jp0133992] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter J. Schmitz
- Ford Research Laboratories, MD3083/SRL, Dearborn, Michigan 48121-2053
| | - Ronald J. Baird
- Ford Research Laboratories, MD3083/SRL, Dearborn, Michigan 48121-2053
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14
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Rodriguez JA, Jirsak T, González L, Evans J, Pérez M, Maiti A. Reaction of SO2 with pure and metal-doped MgO: Basic principles for the cleavage of S–O bonds. J Chem Phys 2001. [DOI: 10.1063/1.1416683] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Rodriguez JA, Jirsak T, Liu G, Hrbek J, Dvorak J, Maiti A. Chemistry of NO2 on oxide surfaces: formation of NO3 on TiO2(110) and NO2<-->O vacancy interactions. J Am Chem Soc 2001; 123:9597-605. [PMID: 11572680 DOI: 10.1021/ja011131i] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Synchrotron-based high-resolution photoemission, X-ray absorption near-edge spectroscopy, and first-principles density functional (DF) slab calculations were used to study the interaction of NO(2) with a TiO(2)(110) single crystal and powders of titania. The main product of the adsorption of NO(2) on TiO(2)(110) is surface nitrate with a small amount of chemisorbed NO(2). A similar result is obtained after the reaction of NO(2) with polycrystalline powders of TiO(2) or other oxide powders. This trend, however, does not imply that the metal centers of the oxides are unreactive toward NO(2). An unexpected mechanism is seen for the formation of NO(3). Photoemission data and DF calculations indicate that the surface nitrate forms through the disproportionation of NO(2) on Ti sites (2NO(2,ads) --> NO(3,ads) + NO(gas)) rather than direct adsorption of NO(2) on O centers of titania. Complex interactions take place between NO(2) and O vacancies of TiO(2)(110). Electronic states associated with O vacancies play a predominant role in the bonding and surface chemistry of NO(2). The adsorbed NO(2), on its part, affects the thermochemical stability of O vacancies, facilitating their migration from the bulk to the surface of titania. The behavior of the NO(2)/titania system illustrates the importance of surface and subsurface defects when using an oxide for trapping or destroying NO(x)() species in the prevention of environmental pollution (DeNOx operations).
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Affiliation(s)
- J A Rodriguez
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953, USA.
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Liu G, Rodriguez JA, Hrbek J, Dvorak J, Peden CHF. Electronic and Chemical Properties of Ce0.8Zr0.2O2(111) Surfaces: Photoemission, XANES, Density-Functional, and NO2 Adsorption Studies. J Phys Chem B 2001. [DOI: 10.1021/jp011224m] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gang Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
| | - José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
| | - Jan Hrbek
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
| | - Joseph Dvorak
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
| | - Charles H. F. Peden
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352
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Rodriguez JA, Pérez M, Jirsak T, González L, Maiti A, Larese JZ. DeNOx Reactions on MgO(100), ZnxMg1-xO(100), CrxMg1-xO(100), and Cr2O3(0001): Correlation between Electronic and Chemical Properties of Mixed-Metal Oxides. J Phys Chem B 2001. [DOI: 10.1021/jp010633f] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. A. Rodriguez
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953, Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela, and Molecular Simulations Inc., 9685 Scranton Road, San Diego, California 92121
| | - M. Pérez
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953, Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela, and Molecular Simulations Inc., 9685 Scranton Road, San Diego, California 92121
| | - T. Jirsak
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953, Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela, and Molecular Simulations Inc., 9685 Scranton Road, San Diego, California 92121
| | - L. González
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953, Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela, and Molecular Simulations Inc., 9685 Scranton Road, San Diego, California 92121
| | - A. Maiti
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953, Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela, and Molecular Simulations Inc., 9685 Scranton Road, San Diego, California 92121
| | - J. Z. Larese
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953, Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela, and Molecular Simulations Inc., 9685 Scranton Road, San Diego, California 92121
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