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Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1198-1210 doi: 10.1007/s11705-021-2133-z

Abstract: Sulfonic acid functionalized mesoporous silica based solid acid catalysts with different morphology wereThe sulfonic acid functionalized mesoporous silica catalysts of spherical shape and the cube shape werecatalytic biodiesel production reaction over the catalysts were studied by esterification of free fatty acid, oleic acid with methanol.The effect of various reaction parameters such as catalyst concentration, acid/alcohol molar ratio, catalyst

Keywords： solid acid catalyst     mesoporous silica     sulfonic acid     biodiesel     esterification     oleic acid    

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Mesoporous silicon sulfonic acid as a highly efficient and stable catalyst for the selective hydroamination

Jingbin Wen, Kuiyi You, Minjuan Chen, Jian Jian, Fangfang Zhao, Pingle Liu, Qiuhong Ai, He’an Luo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 654-665 doi: 10.1007/s11705-020-1973-2

Abstract: In this work, a new mesoporous silicon sulfonic acid catalyst derived from silicic acid has been successfullyThe physicochemical properties of mesoporous silicon sulfonic acid catalysts have been systematicallyThe results demonstrate that sulfonic acid groups have been grafted on silicic acid by forming a newThe mesoporous silicon sulfonic acid exhibits excellent catalytic performance and stability in the vaporThe developed mesoporous silicon sulfonic acid catalyst shows advantages of low cost, superior acid site

Keywords： mesoporous silicon sulfonic acid     catalytic hydroamination     cyclohexene     dicyclohexylamine     vapor phase    

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One-pot three-component Mannich reaction catalyzed by sucrose char sulfonic acid

Qiong XU, Zhigao YANG, Dulin YIN, Jihui WANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 201-205 doi: 10.1007/s11705-009-0052-5

Abstract: Sucrose char sulfonic acid efficiently catalyzed the one-pot three-component Mannich reaction of ketones

Keywords： One–pot synthesis     b-amino ketone     char sulfonic acid     2-acetylpyrazine     catalysis    

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Amino acid promoted hydrogen battery system using Mn-pincer complex for reversible CO hydrogenation toformic acid

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 697-699 doi: 10.1007/s11708-022-0843-7

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Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 784-794 doi: 10.1007/s11705-022-2278-4

Abstract: biocatalysts; however, it is limited by the conditions of metal–organic framework synthesis and its acid-baseHerein, a biocatalytic platform with improved acid-base stability was constructed via a one-pot methodusing bismuth-ellagic acid as the carrier.Bismuth-ellagic acid is a green phenol-based metal–organic framework whose organic precursor is extractedacid was enhanced, which remained stable over a wide pH range (2–12) and achieved multiple recycling

Keywords： bismuth-ellagic acid     in situ encapsulation     enzyme@MOF biocomposites    

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Discovery of novel ursolic acid derivatives as effective antimicrobial agents through a ROS-mediated

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2101-2113 doi: 10.1007/s11705-023-2361-5

Abstract: In this study, we prepared three series of ursolic acid derivatives and assessed their antibacterialredox system of phytopathogenic bacteria, further demonstrating the unprecedented potential of ursolic acid

Keywords： ursolic acid     antibacterial activities     reactive oxygen species     apoptosis    

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Synergistic scale inhibition of polyaspartic acid composite with magnetic field

LIU Zhenfa, WANG Yanji, GAO Yuhua, ZHANG Lihui

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 261-265 doi: 10.1007/s11705-007-0047-z

Abstract: Polyaspartic acid (PASP) composite, a scale inhibitor, was prepared from PASP, itaconic acid–acrylicacid–acrylic ester (IA-AA-AE) terpolymer and 2-phosphonobutane- 1,2,4-tricarboxylic acid (PBTCA).

Keywords： synergism     magnetic     PBTCA     dynamic     acid–acrylic acid–acrylic    

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Abiotic association of phthalic acid esters with humic acid of a sludge landfill

Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 778-783 doi: 10.1007/s11783-012-0434-7

Abstract: The abiotic association between phthalic acid esters (PAEs) and humic substances (HS) in sludge landfillthe abiotic association of two abundant PAEs (diethyl phthalate and di- -butyl phthalate) with humic acid

Keywords： abiotic association     phthalic acid esters (PAEs)     humic acid     sludge     landfill    

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New perspectives in free nitrous acid (FNA) uses for sustainable wastewater management

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11783-024-1786-5

Abstract:

● The historical development of free nitrous acid (FNA) technologies

Keywords： Free nitrous acid     Acid-tolerant ammonia oxidizer     In situ generation     Wastewater management    

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Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1751-1760 doi: 10.1007/s11705-022-2211-x

Abstract: Poly-γ-glutamic acid is an extracellular polymeric substance with various applications owing toHowever, the ability of natural strains to produce poly-γ-glutamic acid is low.licheniformis CGMCC 2876, and a mutant strain M32 with an 11% increase in poly-γ-glutamic acidplipastatin synthase subunit C and glutamate, which might contribute to the higher poly-γ-glutamic acidThe maximum poly-γ-glutamic acid yield of 14.08 g·L–1 was finally reached with 30 g

Keywords： ARTP mutagenesis     Bacillus licheniformis     poly-γ-glutamic acid     metabolomics    

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Proline-2′-deoxymugineic acid, a phytosiderophore analog, drives beneficial rhizobacterial community

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023531

Abstract:

● Proline-2′-deoxymugineic (PDMA) significantly altered the bacterial community in the peanut rhizosphere.

Keywords： rhizobacteria recruitment     peanut     plant-soil micronutrition enhancement     proline-2′-deoxymugineic acid    

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Untargeted metabolomic analysis of pregnant women exposure to perfluorooctanoic acid at different degrees

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1628-x

Abstract:

● Metabolome can distinguish pregnant women exposure to PFOA at different degrees.

Keywords： Perfluorooctanoic acid     Exposure     Pregnant women     Metabolomic     GSH     Microbiota metabolism    

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Design of nanocarriers for efficient cellular uptake and endosomal release of small molecule and nucleic acid

Vaibhav Mundra, Ram I. Mahato

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 387-404 doi: 10.1007/s11705-014-1457-3

Abstract: challenges in developing efficient and target specific delivery systems of small molecule and nucleic acid

Keywords： nanocarrier     cellular uptake     endosomal release     nucleic acid drug    

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Growth and abscisic acid responses of

Yue LI, Liqiang WAN, Yufei WANG, Xianglin LI

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 80-86 doi: 10.15302/J-FASE-2017199

Abstract: The abscisic acid (ABA) concentration in the roots of Aohan and Zhongmu No.1 increased under water stress

Keywords： abscisic acid     alfalfa     drought response     growth stage     water deficit    

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Effects of humic acid on residual Al control in drinking water treatment plants with orthophosphate addition

Wendong WANG, Hua LI, Zhenzhen DING, Xiaochang WANG, Rui LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 470-476 doi: 10.1007/s11783-012-0422-y

Abstract: This study aimed to investigate the effects of humic acid (HA) on residual Al control in drinking water

Keywords： coagulation     drinking water     humic acid     orthophosphate     residual Al    

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Title Author Date Type Operation

Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Journal Article

Mesoporous silicon sulfonic acid as a highly efficient and stable catalyst for the selective hydroamination

Jingbin Wen, Kuiyi You, Minjuan Chen, Jian Jian, Fangfang Zhao, Pingle Liu, Qiuhong Ai, He’an Luo

Journal Article

One-pot three-component Mannich reaction catalyzed by sucrose char sulfonic acid

Qiong XU, Zhigao YANG, Dulin YIN, Jihui WANG

Journal Article

Amino acid promoted hydrogen battery system using Mn-pincer complex for reversible CO hydrogenation toformic acid

Journal Article

Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Journal Article

Discovery of novel ursolic acid derivatives as effective antimicrobial agents through a ROS-mediated

Journal Article

Synergistic scale inhibition of polyaspartic acid composite with magnetic field

LIU Zhenfa, WANG Yanji, GAO Yuhua, ZHANG Lihui

Journal Article

Abiotic association of phthalic acid esters with humic acid of a sludge landfill

Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO

Journal Article

New perspectives in free nitrous acid (FNA) uses for sustainable wastewater management

Journal Article

Genomic and metabolomic analysis of with enhanced poly--glutamic acid production through atmospheric

Journal Article

Proline-2′-deoxymugineic acid, a phytosiderophore analog, drives beneficial rhizobacterial community

Journal Article

Untargeted metabolomic analysis of pregnant women exposure to perfluorooctanoic acid at different degrees

Journal Article

Design of nanocarriers for efficient cellular uptake and endosomal release of small molecule and nucleic acid

Vaibhav Mundra, Ram I. Mahato

Journal Article

Growth and abscisic acid responses of

Yue LI, Liqiang WAN, Yufei WANG, Xianglin LI

Journal Article

Effects of humic acid on residual Al control in drinking water treatment plants with orthophosphate addition

Wendong WANG, Hua LI, Zhenzhen DING, Xiaochang WANG, Rui LIU

Journal Article