1
|
Althabaiti SA, Khan Z, Narasimharao K, Bawaked SM, Al-Sheheri SZ, Mokhtar M, Malik MA. Selective Thermal and Photocatalytic Decomposition of Aqueous Hydrazine to Produce H 2 over Ag-Modified TiO 2 Nanomaterial. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2076. [PMID: 37513087 PMCID: PMC10383222 DOI: 10.3390/nano13142076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023]
Abstract
An Ag-modified TiO2 nanomaterial was prepared by a one-pot synthesis method using tetra butyl titanate, silver nitrate, and sodium hydroxide in water at 473 K for 3 h. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy were used to determine the structure and morphology of the synthesized Ag-modified TiO2 nanomaterial. The diffuse reflectance UV-visible and photoluminescence spectroscopy results revealed that metallic Ag nanoparticles decreased the optical band gap and photoluminescence intensity of the TiO2. In addition, the Raman peak intensity and absorbance were increased after Ag modification onto TiO2. The photocatalytic efficiency of the synthesized samples was tested for decomposition of aqueous hydrazine solution under visible light irradiation. The photocatalytic efficiency of Ag-modified TiO2 nanomaterials was higher than that of bare TiO2 and Ag metal NPs due to the synergistic effect between the Ag metal and TiO2 structures. In addition, the surface plasmon resonance (SPR) electron transfer from Ag metal particles to the conduction band of TiO2 is responsible for superior activity of TiO2-Ag catalyst. The Ag-modified TiO2 nanomaterials offered a 100% H2 selectivity within 30 min of reaction time and an apparent rate constant of 0.018 min-1 with an activation energy of 34.4 kJ/mol under visible light radiation.
Collapse
Affiliation(s)
- Shaeel Ahmed Althabaiti
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Zaheer Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Katabathini Narasimharao
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Salem Mohamed Bawaked
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Soad Zahir Al-Sheheri
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Mohamed Mokhtar
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Maqsood Ahmad Malik
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi-110025, India
| |
Collapse
|
2
|
Zeng Y, Du X, Gao B, Liu B, Xie Z, Gu Z. Single-Step Fabrication of High-Throughput Surface-Enhanced Raman Scattering Substrates. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4222-4232. [PMID: 29297223 DOI: 10.1021/acsami.7b16767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The combination of surface-enhanced Raman scattering (SERS) with high-throughput screening (HTS) has significant importance for highly sensitive and massive workload assays. Although fabrication of HTS-SERS substrates can be achieved by several methods, the high cost as well as large-equipment dependence limit their applications. Here, we report a simple method to fabricate HTS-SERS substrates within one-step process. The HTS-SERS substrate is fabricated by simply UV-irradiating a fluoroalkylsilane (FAS)-modified liquid-repellent TiO2 surface in AgNO3 solution through a photomask. Owing to the photocatalytic nature of TiO2, the UV irradiation simultaneously triggers the degradation of the attached FAS and the generation of liquid-adhesive Ag nanoparticles (NPs) on exposed area. A HTS-SERS substrate could be directly obtained after UV irradiation. The deposited Ag NPs evidently enhance Raman signals, and the significant difference between the wettability of exposed area and masked area enables fast formation of high-throughput liquid droplet arrays through a simple dragging solution process. The fabrication method is applicable to various substrate materials, to introduce additional functionalities. The photocatalytic activity of TiO2 also allows us to photobleach the residual analyte and Ag NPs after detection to recycle substrate. This single-step method is a highly promising candidate for the fabrication of HTS-SERS substrates.
Collapse
Affiliation(s)
- Yi Zeng
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Xin Du
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Bingbing Gao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Bing Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Zhuoying Xie
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| |
Collapse
|
3
|
Iancu V, Baia L, Tarcea N, Popp J, Baia M. Towards TiO2Ag porous nanocomposites based SERS sensors for chemical pollutant detection. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.05.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
4
|
Radziuk D, Moehwald H. Highly effective hot spots for SERS signatures of live fibroblasts. NANOSCALE 2014; 6:6115-6126. [PMID: 24788867 DOI: 10.1039/c4nr00594e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Pre-formed silver-boron nanoparticles of 22 nm form pearl-like necklace nanostructures with interparticle junctions of less than 10 nm length in the matrix of polyethylene glycol (8000 Da). The silver necklace nanostructure is stable at 37 °C or 70 °C and also inside a live cell medium. A polyethylene glycol matrix with a shorter chain length (1000 Da) does not protect the nanoparticles against attraction, and random aggregates are formed. Silver necklace nanostructures exhibit strong Raman enhancement by more than ∼10(9) which is much higher than for silver-citrate or random silver-boron aggregates. The polymeric matrix of 8000 Da contributes strongly to the electromagnetic field enhancement and removes the chemical contribution to the surface Raman scattering increase. The stable interparticle junctions act as local hot spots for strong Raman scattering signals collected from live fibroblasts and allow systematic in situ studies.
Collapse
Affiliation(s)
- Darya Radziuk
- Max-Planck Institute of Colloids and Interfaces, Department of Interfaces, D14476 Potsdam, Germany.
| | | |
Collapse
|
5
|
Controlled growth of silver nanoparticles through a chemically assisted photocatalytic reduction process for SERS substrate applications. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2013.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
6
|
Qiu Z, Zhang M, Wu DY, Ding SY, Zuo QQ, Huang YF, Shen W, Lin XD, Tian ZQ, Mao BW. Raman spectroscopic investigation on TiO2-N719 dye interfaces using Ag@TiO2 nanoparticles and potential correlation strategies. Chemphyschem 2013; 14:2217-24. [PMID: 23824871 DOI: 10.1002/cphc.201300381] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 05/25/2013] [Indexed: 11/10/2022]
Abstract
Herein, we employ Ag@TiO2 core-shell nanoparticles for surface-enhanced Raman scattering (SERS) investigations of TiO2-N719 dye interfaces. In situ electrochemical SERS investigations of the Ag@TiO2-N719 interaction are systematically carried out under a series of electrode-potential controls. By comparing the potential dependence of resonant and pre-resonant SERS spectra recorded with different laser excitations, bidentate carboxylate linkage is considered to be involved in N719 adsorption on TiO2. Meanwhile, SCN ligand shows obvious interactions with TiO2, and their role in the adsorption and orientation of N719 on TiO2 should not be underestimated. The in situ SERS spectra of Ag@TiO2 show a clear bell-shaped intensity-potential relation for the major bands of N719. A molecule-to-TiO2 charge-transfer resonance is tentatively attributed to account for such a phenomenon. Under the influence of such a charge-transfer resonance, valuable information about the N719-TiO2 interaction as well as the intramolecular deformation of N719 is obtained.
Collapse
Affiliation(s)
- Zhi Qiu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Ahmed MH, Keyes TE, Byrne JA. The photocatalytic inactivation effect of Ag–TiO2 on β-amyloid peptide (1–42). J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2012.12.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
8
|
Rabani J, Goldstein S. Mechanisms of Reactions Induced by Photocatalysis of Titanium Dioxide Nanoparticles. ENVIRONMENTAL PHOTOCHEMISTRY PART III 2013. [DOI: 10.1007/698_2013_248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
9
|
Adsorption and photocatalytic degradation of human serum albumin on TiO2 and Ag–TiO2 films. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.05.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
10
|
Surface-enhanced Raman scattering using silver nanocluster on anodic aluminum oxide template sensor toward protein detection. ACTA ACUST UNITED AC 2011; 56:235-40. [DOI: 10.1515/bmt.2011.103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
11
|
Finkelstein-Shapiro D, Tarakeshwar P, Rajh T, Mujica V. Photoinduced Kinetics of SERS in Bioinorganic Hybrid Systems. A Case Study: Dopamine−TiO2. J Phys Chem B 2010; 114:14642-5. [DOI: 10.1021/jp1023718] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel Finkelstein-Shapiro
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, and Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439
| | - Pilarisetty Tarakeshwar
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, and Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439
| | - Tijana Rajh
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, and Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439
| | - Vladimiro Mujica
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, and Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439
| |
Collapse
|
12
|
Faulds K, Hernandez-Santana A, Smith WE. The inorganic chemistry of surface enhanced Raman scattering (SERS). SPECTROSCOPIC PROPERTIES OF INORGANIC AND ORGANOMETALLIC COMPOUNDS 2010. [DOI: 10.1039/9781849730853-00001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Karen Faulds
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow G1 1XL
| | | | - W. Ewen Smith
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow G1 1XL
- D3 Technologies Ltd Nova Technology Park Glasgow G33 1AP
| |
Collapse
|
13
|
Smith WE. Practical understanding and use of surface enhanced Raman scattering/surface enhanced resonance Raman scattering in chemical and biological analysis. Chem Soc Rev 2008; 37:955-64. [DOI: 10.1039/b708841h] [Citation(s) in RCA: 280] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
14
|
Silver doped titanium dioxide nanomaterials for enhanced visible light photocatalysis. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2007.02.010] [Citation(s) in RCA: 466] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
15
|
Pearman WF, Fountain AW. Classification of chemical and biological warfare agent simulants by surface-enhanced Raman spectroscopy and multivariate statistical techniques. APPLIED SPECTROSCOPY 2006; 60:356-65. [PMID: 16613630 DOI: 10.1366/000370206776593744] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Initial results demonstrating the ability to classify surface-enhanced Raman (SERS) spectra of chemical and biological warfare agent simulants are presented. The spectra of two endospores (B. subtilis and B. atrophaeus), two chemical agent simulants (dimethyl methylphosphonate (DMMP) and diethyl methylphosphonate (DEMP)), and two toxin simulants (ovalbumin and horseradish peroxidase) were studied on multiple substrates fabricated from colloidal gold adsorbed onto a silanized quartz surface. The use of principal component analysis (PCA) and hierarchical clustering were used to evaluate the efficacy of identifying potential threat agents from their spectra collected on a single substrate. The use of partial least squares-discriminate analysis (PLS-DA) and soft independent modeling of class analogies (SIMCA) on a compilation of data from separate substrates, fabricated under identical conditions, demonstrates both the feasibility and the limitations of this technique for the identification of known but previously unclassified spectra.
Collapse
Affiliation(s)
- William F Pearman
- Photonics Research Center, Department of Chemistry and Life Science, United States Military Academy, West Point, New York 10996, USA
| | | |
Collapse
|