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Yang Y, Qi H, Xu Z, Zhang ZC. Evolution of catalytically active species in paired PdCl2-CuCl2/[BMim]Cl for hydrolysis of β-1,4-glycosidic bonds. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02225c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we identified the prevailing catalytically active species evolved from paired PdCl2-CuCl2 in 1-butyl-3-methylimidazolium chloride ([BMim]Cl) that displayed dramatic synergism between the two metal chlorides in catalyzing the...
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Fernando H, Amarasekara AS. The Effect of Dicarboxylic Acid Catalyst Structure on Hydrolysis of Cellulose Model Compound D-Cellobiose in Water. CURRENT ORGANOCATALYSIS 2021. [DOI: 10.2174/2213337208666211129090444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Polycarboxylic acids are of interest as simple mimics for cellulase enzyme catalyzed depolymerization of cellulose. In this study, DFT calculations were used to investigate the effect of structure on dicarboxylic acid organo-catalyzed hydrolysis of cellulose model compound D-cellobiose to D-glucose.
Methods:
Binding energy of the complex formed between D-cellobiose and acid (Ebind), as well as glycosidic oxygen to dicarboxylic acid closest acidic H distance were studied as key parameters affecting the turn over frequency of hydrolysis in water.
Result:
α-D-cellobiose - dicarboxylic acid catalyst down face approach showed high Ebind values for five of the six acids studied; indicating the favorability of down face approach. Maleic, cis-1,2-cyclohexane dicarboxylic, and phthalic acids with the highest catalytic activities showed glycosidic oxygen to dicarboxylic acid acidic H distances 3.5-3.6 Å in the preferred configuration.
Conclusion:
The high catalytic activities of these acids may be due to the rigid structure, where acid groups are held in a fixed geometry.
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Affiliation(s)
- Harshica Fernando
- Department of Chemistry, Prairie View A&M University, Prairie View, Texas 77446, United States
| | - Ananda S. Amarasekara
- Department of Chemistry, Prairie View A&M University, Prairie View, Texas 77446, United States
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Li Y, Hagos FM, Chen R, Qian H, Mo C, Di J, Gai X, Yang R, Pan G, Shan S. Rice husk hydrochars from metal chloride-assisted hydrothermal carbonization as biosorbents of organics from aqueous solution. BIORESOUR BIOPROCESS 2021; 8:99. [PMID: 38650206 PMCID: PMC10991232 DOI: 10.1186/s40643-021-00451-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/29/2021] [Indexed: 11/10/2022] Open
Abstract
Hydrochar a carbon-rich material resulting from hydrothermal carbonization of biomass, has received substantial attention because of its potential application in various areas such as carbon sequestration, bioenergy production and environmental amelioration. A series of hydrochars were prepared by metal chloride-assisted hydrothermal carbonization of rice husk and characterized by elemental analysis, zeta potential, X-ray diffraction, Brunauer-Emmett-Teller measurements, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and scanning electron microscopy. The results reveal that the prepared hydrochars have carbon contents ranging from 45.01 to 58.71%, BET specific areas between 13.23 and 45.97 m2/g, and rich O-containing functional groups on the surfaces. The metal chlorides added in the feedwater could improve the degree of carbonization and show significant effects on the physical, chemical and adsorption properties of the hydrochars. The adsorption of the selected organics on the hydrochars is a spontaneous and physisorption-dominated process. The hydrochars possess larger adsorption capacities for 2-naphthol than for berberine hydrochloride and Congo red, and the modeling maximum adsorption capacities of 2-naphthol are in the range of 170.1-2680 mg/g. The adsorption equilibrium could be accomplished in 10, 40 and 30 min for 2-naphthol, berberine hydrochloride and Congo red, respectively. These results suggest metal chloride-assisted hydrothermal carbonization a promising method for converting biomass waste into effective adsorbents for wastewater treatment.
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Affiliation(s)
- Yin Li
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China.
| | - Fana Mulugeta Hagos
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Rongrong Chen
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Hanxin Qian
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Chengxing Mo
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Jing Di
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Xikun Gai
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China.
| | - Ruiqin Yang
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Genxing Pan
- Institute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Shengdao Shan
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
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Fernando H, Amarasekara AS. Interactions of Cellulose Model Compound D‐Cellobiose with Selected Metal Chlorides in Water: Identification of Chelating Oxygen Atoms. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Harshica Fernando
- Department of Chemistry Prairie View A&M University PO Box 519 Prairie View Texas 77446 USA
| | - Ananda S. Amarasekara
- Department of Chemistry Prairie View A&M University PO Box 519 Prairie View Texas 77446 USA
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Amarasekara AS, Wiredu B, Lawrence YM. Hydrolysis and interactions of d-cellobiose with polycarboxylic acids. Carbohydr Res 2019; 475:34-38. [PMID: 30782551 DOI: 10.1016/j.carres.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 01/30/2019] [Accepted: 02/07/2019] [Indexed: 12/25/2022]
Abstract
The hydrolysis of cellulose model compound d-cellobiose was studied with a series of eight common polycarboxylic acids and two monocarboxylic acids in aqueous medium using 0.500 mmol -COOH/L at 170 °C. The maleic acid showed the highest catalytic activity with turnover frequency (TOF) of 29.5 h-1. The interaction of carboxylic acids with d-cellobiose in DMSO‑d6 was studied by determination of the pseudo first-order rate constant kH of anomeric -OH exchange rate in cellobiose using 1H NMR spectroscopy. The maleic, oxalic and citric acids showed infinitely large kH values indicating very strong interactions with d-cellobiose. The next highest interactions were found with phthalic acid (kH = 248.8 Hz). The FT-IR studies showed significant carboxylic acid C=O stretching frequency shifts (ΔνC=O) of 12, 13 and 10 cm-1 for maleic, oxalic and acetic acids respectively in mixtures with d-cellobiose.
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Affiliation(s)
- Ananda S Amarasekara
- Department of Chemistry, Prairie View A&M University, Prairie View, TX, 77446, USA.
| | - Bernard Wiredu
- Department of Chemistry, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Yen Maroney Lawrence
- Department of Chemistry, Prairie View A&M University, Prairie View, TX, 77446, USA
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Ren Y, Wu B, Wang F, Li H, Lv G, Sun M, Zhang X. Chlorocuprate( i) ionic liquid as an efficient and stable Cu-based catalyst for hydrochlorination of acetylene. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00401g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chlorocuprate(i) ionic liquids can be well-stabilized, low-cost, efficient and green non-mercury catalysts for hydrochlorination of acetylene.
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Affiliation(s)
- Yanfei Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Botao Wu
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering
| | - Fumin Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Hang Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Guojun Lv
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Mingshuai Sun
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Xubin Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
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Recent progress in homogeneous Lewis acid catalysts for the transformation of hemicellulose and cellulose into valuable chemicals, fuels, and nanocellulose. REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0071] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Abstract
The evolution from petroleum-based products to the bio-based era by using renewable resources is one of the main research challenges in the coming years. Lignocellulosic biomass, consisting of inedible plant material, has emerged as a potential alternative for the production of biofuels, biochemicals, and nanocellulose-based advanced materials. The lignocellulosic biomass, which consists mainly of carbohydrate-based polysaccharides (hemicellulose and cellulose), is a green intermediate for the synthesis of bio-based products. In recent years, the re-engineering of biomass into a variety of commodity chemicals and liquid fuels by using Lewis acid catalysts has attracted much attention. Much research has been focused on developing new chemical strategies for the valorization of different biomass components. Homogeneous Lewis acid catalysts seem to be one of the most promising catalysts due to their astonishing features such as being less corrosive to equipment and being friendlier to the environment, as well as having the ability to disrupt the bonding system effectively and having high selectivity. Thus, these catalysts have emerged as important tools for the highly selective transformation of biomass components into valuable chemicals and fuels. This review provides an insightful overview of the most important recent developments in homogeneous Lewis acid catalysis toward the production and upgrading of biomass. The chemical valorization of the main components of lignocellulosic biomass (hemicellulose and cellulose), the reaction conditions, and process mechanisms are reviewed.
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Cheng J, Wang N, Zhao D, Qin D, Si W, Tan Y, Wei S, Wang D. The enhancement of the hydrolysis of bamboo biomass in ionic liquid with chitosan-based solid acid catalysts immobilized with metal ions. BIORESOURCE TECHNOLOGY 2016; 220:457-463. [PMID: 27611029 DOI: 10.1016/j.biortech.2016.08.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/13/2016] [Accepted: 08/16/2016] [Indexed: 06/06/2023]
Abstract
Three kinds of sulfonated cross-linked chitosan (SCCR) immobilized with metal ions of Cu(2+), Fe(3+) and Zn(2+) individually were synthesized and firstly used as solid acid catalysts in the hydrolysis of bamboo biomass. FTIR spectra showed that metal ions had been introduced into SCCR and the N-metal ions coordinate bound was formed. The particle sizes of these catalysts were about 500-1000μm with a pore size of 50-160μm. All of the three kinds of catalysts performed well for bamboo hydrolysis with 1-butyl-3-methyl-imidazolium chloride used as solvent. The most effective one was sulfonated cross-linked chitosan immobilized with Fe(3+) (Fe(3+)-SCCR). TRS yields were up to 73.42% for hydrolysis of bamboo powder in [C4mim]Cl with Fe(3+)-SCCR at 120°C and 20RPM after 24h. These novel chitosan-based metal ions immobilized solid acid catalysts with ionic liquids as the solvent might be promising to facilitate cost-efficient conversion of biomass into biofuels and bioproducts.
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Affiliation(s)
- Jie Cheng
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China; Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, PR China
| | - Nan Wang
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, KS 66045, United States
| | - Dezhou Zhao
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China; Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, PR China
| | - Dandan Qin
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China; Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, PR China
| | - Wenqing Si
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China; Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, PR China
| | - Yunfei Tan
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China; Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, PR China
| | - Shun'an Wei
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China; Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, PR China
| | - Dan Wang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China; Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, PR China.
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Affiliation(s)
- Ananda S. Amarasekara
- Department of Chemistry, Prairie View A&M University, Prairie View, Texas 77446, United States
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Amarasekara AS, Wiredu B. Interactions of D-cellobiose with selected chloride salts: A ¹³C NMR and FT-IR study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 159:113-116. [PMID: 26836451 DOI: 10.1016/j.saa.2016.01.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/31/2015] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
The interactions of cellulose model compound d-cellobiose with chloride salts of Zn(2+), Ca(2+), Li(+), Sn(2+), La(3+), Mg(2+), K(+) and NH4(+) were evaluated by measuring the (13)C NMR chemical shift changes (Δδ) of the disaccharide due to the addition of salts in D2O. The KCl and NH4Cl showed similar Δδ changes due to interactions only with the Cl(-) anion. Whereas other chloride salts showed interactions with both cation and anion. Among these salts the total interactions are in the order: Zn(2+)>Sn(2+)>Li(+)>Ca(2+)~La(3+)>Mg(2+). The FT-IR spectra of D-cellobiose-chloride salt 1:2 mixtures also indicate that KCl and NH4Cl interacts similarly with D-cellobiose in the solid state.
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Affiliation(s)
- Ananda S Amarasekara
- Department of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA.
| | - Bernard Wiredu
- Department of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA
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Abstract
The metal salt – Brønsted acidic ionic liquid system composed of ZnCl2·1.74H2O-1-(1-propylsulfonic)-3-methylimidazolium chloride can directly hydrolyze untreated cellulose in 78% total reducing sugar and 19% glucose yield at 37 °C, 1 atm in 4.0 days.
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Affiliation(s)
| | - Bernard Wiredu
- Department of Chemistry
- Prairie View A&M University
- Prairie View
- USA
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Wiredu B, Amarasekara AS. 1-(1-Propylsulfonic)-3-methylimidazolium chloride acidic ionic liquid catalyzed hydrolysis of cellulose in water: Effect of metal ion co-catalysts. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.08.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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