Surface enhanced Raman scattering (SERS) spectra of trinitrotoluene in silver colloids prepared by microwave heating method

Zhang, Chunyu; Wang, Kaijun; Dejun, Han; Pang, Qing Hai

doi:10.1016/j.saa.2013.11.066

Cited by 35 publications

(25 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This technique was reported by Zhang 3 that it showed the determination of volatile organic compounds in low concentration (ppm) as shown in table 1. Raman spectroscopy was remarkable for determining the chemical volatile in low concentration.…”

Section: Effect Of Sers Substrates On Raman Scattering Signalmentioning

confidence: 99%

See 1 more Smart Citation

Silver Colloid and Silver Mirror Complex as Surface Enhanced Raman Substrate for Volatile Organic Compounds Analysis

Injai-Uea¹,

Budtri²,

Lertsiriyothin³

2017

Orient. J. Chem

View full text Add to dashboard Cite

This research focuses on the development of Raman spectroscopy for determination of the low volatile concentration as toluene volatile and 2-Acetyl-2-thiazoline(2AT) volatile. The studies were divided into two techniques. The research was to develop surface enhanced Raman substrates (SERS) enhancedthe surface using silver metal for enhancement. In this part, there were two different types of the SERS suitable for FT-Raman. The first technique was silver colloid. This technique could build nanosilver particles, of which average size was 35.5 -140.3 nm. The detection limits were found to be at 4000 ppm in 2 AT solution. The second techniques were the silver mirror and freezing technique. The detection limits for 2AT solution 0.2 ml in vial were found to be at 4000 and 1000 ppm in the silver mirror. Results of the enhanced Raman spectra of volatile organic compounds (VOCs) contained in a sample showed that the concentration of 2AT was existed at higher level than thatof toluene. Therefore, the silver mirror type of SERS together with the FT-Raman could be used for determining 2AT in low concentration.

show abstract

Section: Effect Of Sers Substrates On Raman Scattering Signalmentioning

confidence: 99%

“…They have reported that the limited importance of this technique is the low concentration of chemical volatile or gas. Zhang 3 reported that the determination of low volume nitro toluene was detected by FT-Raman. The samples were in closed system because they could control volatile dispersion in the system.…”

mentioning

confidence: 99%

Silver Colloid and Silver Mirror Complex as Surface Enhanced Raman Substrate for Volatile Organic Compounds Analysis

Injai-Uea¹,

Budtri²,

Lertsiriyothin³

2017

Orient. J. Chem

View full text Add to dashboard Cite

show abstract

“…[152]. Other research on this subject has focused on the effect of ions commonly found in groundwater and of pH on the efficacy of SERS to detect TNT and NTO [153,154].…”

Section: Sersmentioning

confidence: 99%

Advances in explosives analysis—part II: photon and neutron methods

et al. 2015

View full text Add to dashboard Cite

The number and capability of explosives detection and analysis methods have increased dramatically since publication of the Analytical and Bioanalytical Chemistry special issue devoted to Explosives Analysis [Moore DS, Goodpaster JV, Anal Bioanal Chem 395:245-246, 2009]. Here we review and critically evaluate the latest (the past five years) important advances in explosives detection, with details of the improvements over previous methods, and suggest possible avenues towards further advances in, e.g., stand-off distance, detection limit, selectivity, and penetration through camouflage or packaging. The review consists of two parts. Part I discussed methods based on animals, chemicals (including colorimetry, molecularly imprinted polymers, electrochemistry, and immunochemistry), ions (both ion-mobility spectrometry and mass spectrometry), and mechanical devices. This part, Part II, will review methods based on photons, from very energetic photons including X-rays and gamma rays down to the terahertz range, and neutrons.

show abstract

“…Surface‐enhanced Raman scattering (SERS) has emerged as the most promising spectroscopic analytical tool in the research community because of its molecular detection capability with high spectroscopic precision and extraordinary sensitivity . SERS has displayed plenty of applications in a wide range of areas including explosive detection, food analysis, biosensing, and so on. In SERS, several orders of increment in Raman signals of adsorbed molecules can be observed due to the localized surface plasmons of roughened metal nanostructures (NSs)/nanoparticles (NPs), regarded as electromagnetic enhancement .…”

Section: Introductionmentioning

confidence: 99%

Surface‐enhanced Raman scattering studies of gold‐coated ripple‐like nanostructures on iron substrate achieved by femtosecond laser irradiation in water

Byram

Moram

Soma

2019

J Raman Spectroscopy

View full text Add to dashboard Cite

During the past several years, numerous efforts have been accomplished on designing efficient surface‐enhanced Raman scattering (SERS) substrates with high sensitivity, good reproducibility, and recyclable nature. However, it still remains a significant challenge to realize all these qualities in a single substrate. We have fabricated ripple‐like nanostructures (NSs) on Iron (Fe) substrate using femtosecond (fs) laser irradiation of Fe target in distilled water. These ripple‐like structures had periodicities in the range of ~90–190 nm, which was confirmed from the analysis of field emission scanning electron microscope (FESEM) data. We subsequently deposited a thin layer of gold on these ripple‐like Fe NSs using thermal evaporation. Later, these coated NSs were effectively utilized as SERS substrates for methylene blue (MB) detection and were found to be sensitive evident from the data obtained at a very low concentration of 500pM. Furthermore, we observed that the SERS signal variations on the substrate were <11.2% indicating the reproducible nature of these substrates. Additionally, we demonstrate that these substrates can be reused (we establish this for three times consecutively) by detecting malachite green (MG) and an explosive molecule (picric acid, PA) followed by the mixture compound (Rhodamine 6G+MB) through employment of simple cleaning procedures. The detected molecular concentrations in terms of masses were found to be 3.2 pg, 36.5 pg, and 23 ng for MB (for a concentration of 500pM), MG (for a concentration of 5nM), and PA (for a concentration of 5μM), respectively. Furthermore, these Fe NSs exhibited superior batch‐to‐batch reproducibility with a relative standard deviation (RSD) value of ~l4%. The proposed method of fabricating ripple structures as SERS platforms are highly feasible, reliable, and have great potential for on‐site detection of several analyte molecules with an easily transportable Raman spectrometer.

show abstract

Surface enhanced Raman scattering (SERS) spectra of trinitrotoluene in silver colloids prepared by microwave heating method

Cited by 35 publications

References 22 publications

Silver Colloid and Silver Mirror Complex as Surface Enhanced Raman Substrate for Volatile Organic Compounds Analysis

Silver Colloid and Silver Mirror Complex as Surface Enhanced Raman Substrate for Volatile Organic Compounds Analysis

Advances in explosives analysis—part II: photon and neutron methods

Surface‐enhanced Raman scattering studies of gold‐coated ripple‐like nanostructures on iron substrate achieved by femtosecond laser irradiation in water

Contact Info

Product

Resources

About