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Wang Y, Jiang Q, Yang Y, Cheng J, Bao C, Pan Y, Liu Y, Yang G, Leng Y, Tuo X. Adsorption Properties of Cs(I) and Co(II) on GMZ Bentonite Colloids. NUCL TECHNOL 2022. [DOI: 10.1080/00295450.2022.2083749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Yanhui Wang
- Chengdu University of Technology, Nuclear Technology Automation Process Academy, Chengdu 610059, Sichuan, China
| | - Qiao Jiang
- Chengdu University of Technology, Nuclear Technology Automation Process Academy, Chengdu 610059, Sichuan, China
| | - Yexin Yang
- Chengdu University of Technology, Nuclear Technology Automation Process Academy, Chengdu 610059, Sichuan, China
| | - Jianfeng Cheng
- Chengdu University of Technology, Nuclear Technology Automation Process Academy, Chengdu 610059, Sichuan, China
| | - Chenyang Bao
- Southwest University of Science and Technology, School of National Defense Science and Technology, Mianyang 621000, Sichuan, China
| | - Yuelong Pan
- China Nuclear Power Engineering Co Ltd, Shenzhen 518124, Guandong, China
| | - Yu Liu
- China Nuclear Power Engineering Co Ltd, Shenzhen 518124, Guandong, China
| | - Gang Yang
- Chengdu University of Technology, Nuclear Technology Automation Process Academy, Chengdu 610059, Sichuan, China
| | - Yangchun Leng
- Southwest University of Science and Technology, School of National Defense Science and Technology, Mianyang 621000, Sichuan, China
| | - Xianguo Tuo
- Chengdu University of Technology, Nuclear Technology Automation Process Academy, Chengdu 610059, Sichuan, China
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Shen XR, Zheng H, Pang R, Liu GK, Wu DY, Tian ZQ. Experimental and Theoretical Study of Surface-Enhanced Raman Spectra of Sulfadiazine Adsorbed on Nanoscale Gold Colloids. J Phys Chem A 2019; 123:9199-9208. [DOI: 10.1021/acs.jpca.9b07346] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Ru Shen
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hong Zheng
- Department of the Environment & Ecology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Ran Pang
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Guo-Kun Liu
- Department of the Environment & Ecology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Faizan M, Alam MJ, Afroz Z, Bhat SA, Ahmad S. Anharmonic vibrational spectra and mode-mode couplings analysis of 2-aminopyridine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:26-31. [PMID: 28689075 DOI: 10.1016/j.saa.2017.06.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 06/05/2017] [Accepted: 06/30/2017] [Indexed: 06/07/2023]
Abstract
Vibrational spectra of 2-aminopyridine (2AP) have been analyzed using the vibrational self-consistence field theory (VSCF), correlated corrected vibrational self-consistence field theory (CC-VSCF) and vibrational perturbation theory (VPT2) at B3LYP/6-311G(d,p) framework. The mode-mode couplings affect the vibrational frequencies and intensities. The coupling integrals between pairs of normal modes have been obtained on the basis of quartic force field (2MR-QFF) approximation. The overtone and combination bands are also assigned in the FTIR spectrum with the help of anharmonic calculation at VPT2 method. A statistical analysis of deviations shows that estimated anharmonic frequencies are closer to the experiment over harmonic approximation. Furthermore, the anharmonic correction has also been carried out for the dimeric structure of 2AP. The fundamental vibration bands have been assigned on the basis of potential energy distribution (PED) and visual look over the animated modes. Other important molecular properties such as frontier molecular orbitals and molecular electrostatics potential mapping have also been analyzed.
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Affiliation(s)
- Mohd Faizan
- Department of Physics, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Mohammad Jane Alam
- Department of Physics, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Ziya Afroz
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Sheeraz Ahmad Bhat
- Department of Physics, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Shabbir Ahmad
- Department of Physics, Aligarh Muslim University, Aligarh 202002, UP, India.
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Gerasin VA, Antipov EM, Karbushev VV, Kulichikhin VG, Karpacheva GP, Talroze RV, Kudryavtsev YV. New approaches to the development of hybrid nanocomposites: from structural materials to high-tech applications. RUSSIAN CHEMICAL REVIEWS 2013. [DOI: 10.1070/rc2013v082n04abeh004322] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ikhsan J, Angove MJ, Wells JD, Johnson BB. Surface complexation modeling of the sorption of 2-, 3-, and 4-aminopyridine by montmorillonite. J Colloid Interface Sci 2005; 284:383-92. [PMID: 15780273 DOI: 10.1016/j.jcis.2004.10.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2004] [Accepted: 10/20/2004] [Indexed: 10/26/2022]
Abstract
The sorption of 2-, 3-, and 4-aminopyridine on K-saturated Wyoming (SWy-K) and Texas (STx-K) and Ca-enriched Texas (STx-Ca) montmorillonite was measured at 25 degrees C with 10 mM KNO(3) or 3.3 mM Ca(NO(3))(2) as the background electrolyte. The aminopyridines adsorbed to montmorillonite at low pH, but not at high pH. Extended constant capacitance surface complexation models (ECCMs) and attenuated total reflectance-FTIR data indicate that aminopyridines sorb to the silica-like faces by cation exchange, forming outer-sphere complexes between aminopyridinium ions and permanent negatively charged surface sites (X(-)). X-ray diffraction data and sorption kinetics suggest that sorption occurs not only at external X(-) sites but also at those in the interlayer spaces. Differences in the sorption behaviors of 2-, 3-, and 4-aminopyridine result from differences in their pK(a)s. The extent of sorption of aminopyridines by the montmorillonite samples (SWy-K>STx-K>STx-Ca) results from the higher cation-exchange capacity of SWy-K, and from the fact that Ca(2+) is much more effective than K(+) in competing with protonated aminopyridines for the X(-) sites.
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Affiliation(s)
- Jaslin Ikhsan
- Colloid and Environmental Chemistry Laboratory, La Trobe University, P.O. Box 199, Bendigo, Victoria 3552, Australia
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El Amri C, Baron MH, Maurel MC. Adenine and RNA in mineral samples. Surface-enhanced Raman spectroscopy (SERS) for picomole detections. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2003; 59:2645-2654. [PMID: 12963461 DOI: 10.1016/s1386-1425(03)00034-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Studies on the interactions of biological macromolecules with mineral surfaces are crucial for the detecting biomarkers. But before this can be done for real samples like rocks or sediments, rational methods based on mineral models plus known amounts of nucleic acids must be developed. The methods must be very sensitive, as the amount of bound macromolecule may be very small. Surface-enhanced Raman spectroscopy (SERS) is perfect for detecting picomolar amounts of nucleic acid materials. In this study, the models used were adenine and GAAA hairpin for nucleic acids materials and a clay (montmorillonite) plus colloidal silver (used for SERS detection) for mineral supports. We have shown that OH(-) anions compete with adenine and the adenyl residues in the GAAA loop for adsorption onto nano-sized silver particles in basic medium. The GAAA adenyl moieties are less well adsorbed onto either clay or silver than is adenine. Also, the transfer of either adenine or the RNA hairpin from the clay to the silver aggregates is pH-dependent. Contact between adenine and the montmorillonite also seems to disperse adenine aggregates. The clay could also increase the flexibility of the RNA hairpin so that it is released from the clay at pH 10, and the affinity of its adenyl moieties for the metallic substrate is enhanced.
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Affiliation(s)
- Chahrazade El Amri
- Laboratoire de Biochimie de l'Evolution et Adaptabilité Moléculaire, Institut Jacques Monod, Université Paris-6, tour 43, 2, place Jussieu, 75251 Paris Cedex 05, France
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FT-IR spectroscopic investigations of surface and intercalated 2-aminopyrimidine adsorbed on sepiolite and montmorillonite from Anatolia. J Mol Struct 2003. [DOI: 10.1016/s0022-2860(02)00659-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Akyüz S, Akyüz T, Yakar A. FT-IR spectroscopic investigation of adsorption of 3-aminopyridine on sepiolite and montmorillonite from Anatolia. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(00)00845-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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FT-IR and FT-Raman spectroscopic study of surface species of 2-aminopyridine adsorbed by sepiolite from Anatolia. J STRUCT CHEM+ 1999. [DOI: 10.1007/bf02903455] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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