1
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Double Catalyst-Catalyzed: An Environmentally Friendly Sustainable Process to Produce Methallyl Alcohol. Catal Letters 2020. [DOI: 10.1007/s10562-020-03142-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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2
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Romero FJ, Rivadeneyra A, Becherer M, Morales DP, Rodríguez N. Fabrication and Characterization of Humidity Sensors Based on Graphene Oxide-PEDOT:PSS Composites on a Flexible Substrate. MICROMACHINES 2020; 11:E148. [PMID: 32013153 PMCID: PMC7074611 DOI: 10.3390/mi11020148] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/20/2020] [Accepted: 01/27/2020] [Indexed: 12/14/2022]
Abstract
In this paper, we present a simple, fast, and cost-effective method for the large-scale fabrication of high-sensitivity humidity sensors on flexible substrates. These sensors consist of a micro screen-printed capacitive structure upon which a sensitive layer is deposited. We studied two different structures and three different sensing materials by modifying the concentration of poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT:PSS) in a graphene oxide (GO) solution. The results show that the aggregation of the PEDOT:PSS to the GO can modify its electrical properties, boosting the performance of the capacitive sensors in terms of both resistive losses and sensitivity to relative humidity (RH) changes. Thus, in an area less than 30 mm2, the GO/PEDOT:PSS-based sensors can achieve a sensitivity much higher (1.22 nF/%RH at 1 kHz) than other similar sensors presented in the literature which, together with their good thermal stability, time response, and performance over bending, demonstrates that the manufacturing approach described in this work paves the way for the mass production of flexible humidity sensors in an inexpensive way.
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Affiliation(s)
- Francisco J. Romero
- Pervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, Spain;
- Department of Electronics and Computer Technology, University of Granada, 18071 Granada, Spain;
| | - Almudena Rivadeneyra
- Pervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, Spain;
- Department of Electronics and Computer Technology, University of Granada, 18071 Granada, Spain;
| | - Markus Becherer
- Chair of Nanoelectronics, Technical University of Munich, 80333 München, Germany;
| | - Diego P. Morales
- Department of Electronics and Computer Technology, University of Granada, 18071 Granada, Spain;
- Biochemistry and Electronics as Sensing Technologies Group, University of Granada, 18071 Granada, Spain
| | - Noel Rodríguez
- Pervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, Spain;
- Department of Electronics and Computer Technology, University of Granada, 18071 Granada, Spain;
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3
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Yang Z, Asoh TA, Uyama H. Removal of Cationic or Anionic Dyes from Water Using Ion Exchange Cellulose Monoliths as Adsorbents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190111] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhaohang Yang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Enhancement of catalytic activity by homo-dispersing S 2 O 8 2– -Fe 2 O 3 nanoparticles on SBA-15 through ultrasonic adsorption. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(17)63007-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Ma Z, Meng X, Yang C, Liu N, Zhang Y, Shi L. Study of High-Aluminum-Content Sulfated Zirconia: Influence of Aluminum Content and Washing. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00832] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhiming Ma
- State Key Laboratory of Chemical
Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xuan Meng
- State Key Laboratory of Chemical
Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chao Yang
- State Key Laboratory of Chemical
Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Naiwang Liu
- State Key Laboratory of Chemical
Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yuting Zhang
- State Key Laboratory of Chemical
Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Li Shi
- State Key Laboratory of Chemical
Engineering, East China University of Science and Technology, Shanghai 200237, China
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Xu F, Zhu TT, Rao QQ, Shui SW, Li WW, He HB, Yao RS. Fabrication of mesoporous lignin-based biosorbent from rice straw and its application for heavy-metal-ion removal. J Environ Sci (China) 2017; 53:132-140. [PMID: 28372737 DOI: 10.1016/j.jes.2016.03.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 03/11/2016] [Accepted: 03/25/2016] [Indexed: 06/07/2023]
Abstract
Lignocellulosic biomass offers the most abundant renewable resource in replacing traditional fossil resources. However, it is still a major challenge to directly convert the lignin component into value-added materials. The availability of plentiful hydroxyl groups in lignin macromolecules and its unique three-dimensional structure make it an ideal precursor for mesoporous biosorbents. In this work, we reported an environmentally friendly and economically feasible method for the fabrication of mesoporous lignin-based biosorbent (MLBB) from lignocellulosic biomass through a SO3 micro-thermal-explosion process, as a byproduct of microcrystalline cellulose. BET analysis reveal the average pore-size distribution of 5.50nm, the average pore value of 0.35cm3/g, and the specific surface area of 186m2/g. The physicochemical properties of MLBB were studied by fourier transform infrared spectroscopy (FTIR), attenuated-total-reflection fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), and element analysis. These results showed that there are large amounts of sulfonic functional groups existing on the surface of this biosorbent. Pb(II) was used as a model heavy-metal-ion to demonstrate the technical feasibility for heavy-metal-ion removal. Considering that lignocellulosic biomass is a naturally abundant and renewable resource and SO3 micro-thermal-explosion is a proven technique, this biosorbent can be easily produced at large scale and become a sustainable and reliable resource for wastewater treatment.
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Affiliation(s)
- Fang Xu
- School of Medical Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Ting-Ting Zhu
- School of Medical Engineering, Hefei University of Technology, Hefei 230009, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei 230026, China
| | - Qing-Quan Rao
- Environmental Monitoring Center of Taizhou, Taizhou 31800, China
| | - Sheng-Wen Shui
- School of Medical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wen-Wei Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei 230026, China
| | - Hong-Bo He
- School of Medical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Ri-Sheng Yao
- School of Medical Engineering, Hefei University of Technology, Hefei 230009, China.
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7
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Wang J, Pan H, Wang A, Tian X, Wu X, Wang Y. Synthesis and characterization of S2O82−/ZnFe Al2−O4 solid acid catalysts for the esterification of acetic acid with n-butanol. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Banas K, Banas A, Gajda M, Kwiatek WM, Pawlicki B, Breese MBH. Performance assessment and beamline diagnostics based on evaluation of temporal information from infrared spectral datasets by means of R Environment for statistical analysis. Anal Chem 2014; 86:6918-23. [PMID: 24960413 DOI: 10.1021/ac500686w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Assessment of the performance and up-to-date diagnostics of scientific equipment is one of the key components in contemporary laboratories. Most reliable checks are performed by real test experiments while varying the experimental conditions (typically, in the case of infrared spectroscopic measurements, the size of the beam aperture, the duration of the experiment, the spectral range, the scanner velocity, etc.). On the other hand, the stability of the instrument response in time is another key element of the great value. Source stability (or easy predictable temporal changes, similar to those observed in the case of synchrotron radiation-based sources working in non top-up mode), detector stability (especially in the case of liquid nitrogen- or liquid helium-cooled detectors) should be monitored. In these cases, recorded datasets (spectra) include additional variables such as time stamp when a particular spectrum was recorded (in the case of time trial experiments). A favorable approach in evaluating these data is building hyperspectral object that consist of all spectra and all additional parameters at which these spectra were recorded. Taking into account that these datasets could be considerably large in size, there is a need for the tools for semiautomatic data evaluation and information extraction. A comprehensive R archive network--the open-source R Environment--with its flexibility and growing potential, fits these requirements nicely. In this paper, examples of practical implementation of methods available in R for real-life Fourier transform infrared (FTIR) spectroscopic data problems are presented. However, this approach could easily be adopted to many various laboratory scenarios with other spectroscopic techniques.
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Affiliation(s)
- Krzysztof Banas
- Singapore Synchrotron Light Source, National University of Singapore , 5 Research Link, Singapore 117603, Singapore
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Ejtemaei M, Tavakoli A, Charchi N, Bayati B, Babaluo A, Bayat Y. Synthesis of sulfated zirconia nanopowders via polyacrylamide gel method. ADV POWDER TECHNOL 2014. [DOI: 10.1016/j.apt.2013.12.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Identification and Characterization of Surface Hydroxyl Groups by Infrared Spectroscopy. ADVANCES IN CATALYSIS 2014. [DOI: 10.1016/b978-0-12-800127-1.00002-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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11
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Song Y, Tian J, Ye Y, Jin Y, Zhou X, Wang JA, Xu L. Effects of calcination temperature and water-washing treatment on n-hexane hydroisomerization behavior of Pt-promoted sulfated zirconia based catalysts. Catal Today 2013. [DOI: 10.1016/j.cattod.2012.07.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Pan H, Wang J, Chen L, Su G, Cui J, Meng D, Wu X. Preparation of sulfated alumina supported on mesoporous MCM-41 silica and its application in esterification. CATAL COMMUN 2013. [DOI: 10.1016/j.catcom.2013.02.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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13
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Kazakov MO, Lavrenov AV, Belskaya OB, Danilova IG, Arbuzov AB, Gulyaeva TI, Drozdov VA, Duplyakin VK. Hydroisomerization of benzene-containing gasoline fractions on a Pt/SO 4 2− -ZrO2-Al2O3 catalyst: III. The hydrogenating properties of the catalyst. KINETICS AND CATALYSIS 2012. [DOI: 10.1134/s0023158412010016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Degirmenci V, Uner D, Cinlar B, Shanks BH, Yilmaz A, van Santen RA, Hensen EJM. Sulfated Zirconia Modified SBA-15 Catalysts for Cellobiose Hydrolysis. Catal Letters 2010. [DOI: 10.1007/s10562-010-0466-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Sulfated alumina and zirconia in isobutane/butene alkylation and n-pentane isomerization: Catalysis, acidity, and surface sulfate species. Catal Today 2010. [DOI: 10.1016/j.cattod.2009.08.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Influence of sulfation conditions on the acidic and catalytic properties of sulfated alumina in isobutane alkylation with butylenes and n-pentane isomerization. Russ Chem Bull 2009. [DOI: 10.1007/s11172-009-0225-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Affiliation(s)
- Guido Busca
- Laboratorio di Chimica delle Superfici e Catalisi Industriale, Dipartimento di Ingegneria Chimica e di Processo “G.B. Bonino”, Università di Genova, P.le Kennedy, I-16129 Genova, Italy
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