|
1
|
Materials design and sensing mechanism of novel calix[6]arene composite for sensitively detecting amine drugs. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.01.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
|
2
|
Lai X, Cao K, Shen G, Xue P, Wang D, Hu F, Zhang J, Yang Q, Wang X. Ordered mesoporous NiFe 2O 4 with ultrathin framework for low-ppb toluene sensing. Sci Bull (Beijing) 2018; 63:187-193. [PMID: 36659004 DOI: 10.1016/j.scib.2018.01.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/27/2017] [Accepted: 12/21/2017] [Indexed: 01/21/2023]
Abstract
Highly sensitive and selective detection against specific target gases, especially at low-ppb (part per billion) level, remain a great number of challenges in gas sensor applications. In this paper, we first present an ordered mesoporous NiFe2O4 for highly sensitive and selective detection against low-ppb toluene. A series of mesoporous NiFe2O4 materials were synthesized by templating from mesoporous silica KIT-6 and its framework thickness was reduced from 8.5 to 5 nm by varying the pore size of KIT-6 from 9.4 to 5.6 nm, accompanied with the increase of the specific surface area from 134 to 216 m2 g-1. The ordered mesoporous NiFe2O4 with both ultrathin framework of 5 nm and large specific surface area of up to 216 m2 g-1 exhibits a highest response (Rgas/Rair - 1 = 77.3) toward 1,000 ppb toluene at 230 °C and is nearly 7.3 and 76.7 times higher than those for the NiFe2O4 replica with thick framework and its bulk counterpart respectively, which also possesses a quite low limit of detection (<2 ppb), and good selectivity.
Collapse
Affiliation(s)
- Xiaoyong Lai
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.
| | - Kun Cao
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Guoxin Shen
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Ping Xue
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Dan Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
| | - Fang Hu
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
| | - Jianli Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Qingfeng Yang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Xiaozhong Wang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| |
Collapse
|
|
3
|
Xie J, Wang H, Liu XX, Duan M, Tang J, Wang YY. Selectivity of a QCM gas sensor modified by ZnSn(OH)6via analysis of adsorption thermodynamics and kinetics. RSC Adv 2017. [DOI: 10.1039/c7ra09101j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, a novel analysis approach was employed to achieve the selectivity of a quartz crystal microbalance (QCM) sensor.
Collapse
Affiliation(s)
- J. Xie
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University (SWPU)
- Chengdu 610500
- China
- The Center of New Energy Materials and Technology
| | - H. Wang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University (SWPU)
- Chengdu 610500
- China
- The Center of New Energy Materials and Technology
| | - X. X. Liu
- The Center of New Energy Materials and Technology
- School of Materials Science and Engineering
- Southwest Petroleum University (SWPU)
- Chengdu 610500
- China
| | - M. Duan
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University (SWPU)
- Chengdu 610500
- China
- College of Chemistry and Chemical Engineering
| | - J. L. Tang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University (SWPU)
- Chengdu 610500
- China
- College of Chemistry and Chemical Engineering
| | - Y. Y. Wang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University (SWPU)
- Chengdu 610500
- China
- College of Chemistry and Chemical Engineering
| |
Collapse
|