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Li Q, Zhao JH, Lai HJ, Liu B, Zhang M, Xiao NL, Wang HD, Jin T. Benzoyl isothiocyanate modified surface of silica gel as the extraction material for adsorbing steroid hormones in water. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1206-1214. [PMID: 36807579 DOI: 10.1039/d2ay01852g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Steroid hormones have been listed as priority pollutants in the environment, and their detection and pollution control deserve our extensive attention. In this study, a modified silica gel adsorbent material was synthesized by benzoyl isothiocyanate reaction with hydroxyl groups on the silica gel surface. The modified silica gel was used as a solid phase extraction filler for the extraction of steroid hormones from water, which was further analyzed by the HPLC-MS/MS method. The FT-IR, TGA, XPS, and SEM analysis indicated that benzoyl isothiocyanate was successfully grafted on the surface of silica gel to form a bond with an isothioamide group and benzene ring as the tail chain. The modified silica gel synthesized at 40 °C showed excellent adsorption and recovery rates for three steroid hormones in water. Methanol at pH 9.0 was selected as the optimal eluent. The adsorption capacity of the modified silica gel for epiandrosterone, progesterone, and megestrol acetate was 6822 ng mg-1, 13 899 ng mg-1, and 14 301 ng mg-1, respectively. Under optimal conditions, the limit of detection (LOD) and limit of quantification (LOQ) for 3 steroid hormones by modified silica gel extraction with HPLC-MS/MS detection were 0.02-0.88 μg L-1 and 0.06-2.22 μg L-1, respectively. The recovery rate of epiandrosterone, progesterone, and megestrol was between 53.7% and 82.9%, respectively. The modified silica gel has been successfully used to analyze steroid hormones in wastewater and surface water.
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Affiliation(s)
- Qiang Li
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, No. 368, Xingke Road, Tianhe District, Guangzhou 510650, Guangdong Province, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jia-Hui Zhao
- CAS Testing Technical Services (Guangzhou) Co. Ltd., Guangzhou 510650, China
| | - Hua-Jie Lai
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, No. 368, Xingke Road, Tianhe District, Guangzhou 510650, Guangdong Province, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Testing Technical Services (Guangzhou) Co. Ltd., Guangzhou 510650, China
- New Materials Research Institute of CASCHEM (Chongqing) Co. Ltd., Chongqing 400714, China
| | - Bo Liu
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, No. 368, Xingke Road, Tianhe District, Guangzhou 510650, Guangdong Province, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Testing Technical Services (Guangzhou) Co. Ltd., Guangzhou 510650, China
- New Materials Research Institute of CASCHEM (Chongqing) Co. Ltd., Chongqing 400714, China
| | - Miao Zhang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, No. 368, Xingke Road, Tianhe District, Guangzhou 510650, Guangdong Province, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ning-Lan Xiao
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, No. 368, Xingke Road, Tianhe District, Guangzhou 510650, Guangdong Province, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao-Dong Wang
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, No. 368, Xingke Road, Tianhe District, Guangzhou 510650, Guangdong Province, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tao Jin
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, No. 368, Xingke Road, Tianhe District, Guangzhou 510650, Guangdong Province, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Testing Technical Services (Guangzhou) Co. Ltd., Guangzhou 510650, China
- New Materials Research Institute of CASCHEM (Chongqing) Co. Ltd., Chongqing 400714, China
- CAS Engineering Laboratory for Special Fine Chemicals, Chinese Academy of Sciences, Guangzhou 510650, China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou 510650, China
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Morozova S, Alikina M, Vinogradov A, Pagliaro M. Silicon Quantum Dots: Synthesis, Encapsulation, and Application in Light-Emitting Diodes. Front Chem 2020; 8:191. [PMID: 32318540 PMCID: PMC7154098 DOI: 10.3389/fchem.2020.00191] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 03/02/2020] [Indexed: 12/29/2022] Open
Abstract
Silicon quantum dots (SiQDs) are semiconductor Si nanoparticles ranging from 1 to 10 nm that hold great applicative potential as optoelectronic devices and fluorescent bio-marking agents due to their ability to fluoresce blue and red light. Their biocompatibility compared to conventional toxic Group II-VI and III-V metal-based quantum dots makes their practical utilization even more attractive to prevent environmental pollution and harm to living organisms. This work focuses on their possible use for light-emitting diode (LED) manufacturing. Summarizing the main achievements over the past few years concerning different Si quantum dot synthetic methods, LED formation and characteristics, and strategies for their stabilization by microencapsulation and modification of their surface by specific ligands, this work aims to provide guidance en route to the development of the first stable Si-based light-emitting diodes.
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Affiliation(s)
- Sofia Morozova
- Laboratory of Inkjet Printing of Functional Materials, SCAMT Institute, ITMO University, Saint-Petersburg, Russia
| | - Mariya Alikina
- Laboratory of Inkjet Printing of Functional Materials, SCAMT Institute, ITMO University, Saint-Petersburg, Russia
| | - Aleksandr Vinogradov
- Laboratory of Inkjet Printing of Functional Materials, SCAMT Institute, ITMO University, Saint-Petersburg, Russia
| | - Mario Pagliaro
- Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Palermo, Italy
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