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Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 673-687 doi: 10.1007/s11705-019-1800-9

Abstract: Intercalation of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membraneA similar increment was obtained for the membrane flux, which was due to the synergistic effect of the

Keywords： amine functionality     nanoporous membrane     adsorption isotherm     thermodynamic parameters     landfill leachate    

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Building a Highly Stable Ultrathin Nanoporous Layer Assisted by Glucose for Desalination Article

Yanqiu Zhang, Fan Yang, Hongguang Sun, Yongping Bai, Songwei Li, Lu Shao

Engineering 2022, Volume 16, Issue 9,   Pages 247-255 doi: 10.1016/j.eng.2020.06.033

Abstract:

Although nanoporous membranes are of great interest in desalination, it is still challenging to constructhighly permeable nanoporous membranes with excellent rejections for an efficient desalination processIn this work, highly permeable nanoporous membranes were built from renewable resources, assisted byOur novel ultrathin (~44 nm) nanofiltration (NF) membrane exhibits ultra-high Na2SO4membrane materials.

Keywords： Nanoporous membrane     Renewable resources     Nanofiltration     Desalination     Glucose    

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Largely reduced cross-plane thermal conductivity of nanoporous In

Dongchao XU, Quan WANG, Xuewang WU, Jie ZHU, Hongbo ZHAO, Bo XIAO, Xiaojia WANG, Xiaoliang WANG, Qing HAO

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 127-136 doi: 10.1007/s11708-018-0519-5

Abstract: In recent year, nanoporous Si thin films have been widely studied for their potential applications inAlong this line, a high thermoelectric figure of merit (ZT) is also anticipated for other nanoporousNumerous thermoelectric studies have been carried out on Si-based nanoporous thin films, whereas cost-effectiveIn this work, the cross-plane thermal conductivities of nanoporous In Ga N thin films with varied porousIn contrast to previous studies using dry-etched nanopores with amorphous pore edges, the measured nanoporous

Keywords： nanoporous film     thermoelectrics     phonon     mean free path     diffusive scattering    

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Progress in the Physisorption Characterization of Nanoporous Gas Storage Materials Review

Katie A. Cychosz,Matthias Thommes

Engineering 2018, Volume 4, Issue 4,   Pages 559-566 doi: 10.1016/j.eng.2018.06.001

Abstract:

Assessing the adsorption properties of nanoporous materials and determining their structural characterizationhave been achieved both in the knowledge of the adsorption and phase behavior of fluids in ordered nanoporousfew important and central features of the underlying adsorption mechanisms of fluids in a variety of nanoporous

Keywords： Adsorption     Characterization     High-pressure adsorption     Nanoporous materials    

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Transport in Nanoporous Media

Weiyao Zhu,Bin Pan,Zhen Chen,Wengang Bu,Qipeng Ma,Kai Liu,Ming Yue

Engineering 2024, Volume 32, Issue 1,   Pages 139-152 doi: 10.1016/j.eng.2023.05.014

Abstract:

Fluid flow at nanoscale is closely related to many areas in nature and technology, e.g., unconventional hydrocarbon recovery, carbon dioxide geo-storage, underground hydrocarbon storage, fuel cells, ocean desalination and biomedicine. At nanoscale, interfacial forces dominate over bulk forces, and nonlinear effects are important, which significantly deviate from conventional theory. During the past decades, a series of experiments, theory and simulations have been performed to investigate fluid flow at nanoscale, which has advanced our fundamental knowledge of this topic. However, a critical review is still lacking, which has seriously limited the basic understanding of this area. Therefore herein, we systematically review experimental, theoretical and simulation works on single- and multi- phases fluid flow at nanoscale. We also clearly point out the current research gaps and future outlook. These insights will promote the significant development of nonlinear flow physics at nanoscale and will provide crucial guidance on the relevant areas.

Keywords： Transport in nanoporous media     Multi-phase fluid dynamics     Nonlinear flow mechanisms     Nonlinear flow conservation    

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Overcoming oral insulin delivery barriers: application of cell penetrating peptide and silica-based nanoporous

Huining HE, Junxiao YE, Jianyong SHENG, Jianxin WANG, Yongzhuo HUANG, Guanyi CHEN, Jingkang WANG, Victor C YANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 9-19 doi: 10.1007/s11705-013-1306-9

Abstract: Oral insulin delivery has received the most attention in insulin formulations due to its high patient compliance and, more importantly, to its potential to mimic the physiologic insulin secretion seen in non-diabetic individuals. However, oral insulin delivery has two major limitations: the enzymatic barrier that leads to rapid insulin degradation, and the mucosal barrier that limits insulin’s bioavailability. Several approaches have been actively pursued to circumvent the enzyme barrier, with some of them receiving promising results. Yet, thus far there has been no major success in overcoming the mucosal barrier, which is the main cause in undercutting insulin’s oral bioavailability. In this review of our group’s research, an innovative silica-based, mucoadhesive oral insulin formulation with encapsulated-insulin/cell penetrating peptide (CPP) to overcome both enzyme and mucosal barriers is discussed, and the preliminary and convincing results to confirm the plausibility of this oral insulin delivery system are reviewed. In vitro studies demonstrated that the CPP-insulin conjugates could facilitate cellular uptake of insulin while keeping insulin’s biologic functions intact. It was also confirmed that low molecular weight protamine (LMWP) behaves like a CPP peptide, with a cell translocation potency equivalent to that of the widely studied TAT. The mucoadhesive properties of the produced silica-chitosan composites could be controlled by varying both the pH and composition; the composite consisting of chitosan (25 wt-%) and silica (75 wt-%) exhibited the greatest mucoadhesion at gastric pH. Furthermore, drug release from the composite network could also be regulated by altering the chitosan content. Overall, the universal applicability of those technologies could lead to development of a generic platform for oral delivery of many other bioactive compounds, especially for peptide or protein drugs which inevitably encounter the poor bioavailability issues.

Keywords： insulin     cell penetrating peptide     mucoadhesive composites     oral delivery    

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Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

SUI Pengzhe, WEN Xianghua, HUANG Xia

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 362-367 doi: 10.1007/s11783-007-0062-9

Abstract: In this study, ultrasound was used to control the membrane fouling online in an anaerobic membrane bioreactorThe experimental results indicated that when the crossflow velocity was more than 1.0 m/s, membrane foulingWhen ultrasound was applied, an ultrasonic power range of 60–150 W was suitable for the membrane foulingThe experimental results showed that the membrane fouling was controlled so well that membrane filtration

Keywords： membrane filtration     filtration resistance     different     feasible ultrasonic     anaerobic membrane    

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Novel membrane separation technologies and membrane processes

Yanying Wei, Gongping Liu, Jianquan Luo, Libo Li, Zhi Xu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 717-719 doi: 10.1007/s11705-021-2053-y

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A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1729-6

Abstract:

● Fundamentals of membrane fouling are comprehensively reviewed.

Keywords： Membrane fouling     Thermodynamic mechanism     XDLVO theory     Flory-Huggins theory     Fouling migration    

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A review on membrane distillation in process engineering: design and exergy equations, materials and

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 592-613 doi: 10.1007/s11705-021-2105-3

Abstract: Further advances in the field of desalination can be provided by innovative processes such as membraneenhanced research activities and allowed a deeper understanding of mass and heat transport phenomena, membranewetting, polarization phenomena and have encouraged the use of materials particularly suitable for membraneThis work summarizes recent developments in the field of membrane distillation, studies for module lengthoptimization, commercial membrane modules developed, recent patents and advancement of membrane material

Keywords： membrane distillation     recent developments     heat and mass transfer     wetting     membrane material    

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Pilot plants of membrane technology in industry: Challenges and key learnings

Colin A. Scholes

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 305-316 doi: 10.1007/s11705-019-1860-x

Abstract: Membrane technology holds great potential in gas separation applications, especially carbon dioxide captureTo achieve this potential, the outputs from global research endeavours into membrane technologies mustbe trialled in industrial processes, which requires membrane-based pilot plants.These pilot plants are critical to the commercialization of membrane technology, be it as gas separationHere, the author reports on his experience of operating membrane-based pilot plants for gas separation

Keywords： membrane gas separation     membrane contactors     carbon capture     pilot plants     key learnings    

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Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 634-660 doi: 10.1007/s11705-021-2107-1

Abstract: In particular, membrane bioreactor (MBR) technology demonstrated high removal efficiency toward organicmicrofiltration) into the MBR units (hybrid MBRs) or the MBR as a pretreatment step and integrating other membraneprocesses as subsequent secondary purification step (integrated MBR-membrane systems).Then, an in-depth analysis was provided into the recent development of hybrid MBR and integrated MBR-membraneknowledge gaps in the field, highlighting the potential contribution of hybrid MBRs and integrated MBR-membrane

Keywords： membrane technology     membrane bioreactor     hospital wastewater     hybrid MBR     integrated MBR-membrane system    

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Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1606-1615 doi: 10.1007/s11705-022-2200-0

Abstract: In this work, the base nonwoven layer of the wasted reverse osmosis membrane was successfully modifiedinto the hydrophobic membrane via surface deposition strategy including TiO2 and 1H,1H,2HThe optimally modified membrane displayed good hydrophobicity with a contact angle of 135.2° ± 0.3°,This work might provide a new avenue for recycling the wasted reverse osmosis membrane used in oily wastewater

Keywords： oil–water separation     wasted reverse osmosis membrane     hydrophobic modification    

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Aggravation of membrane fouling and methane leakage by a three-phase separator in an external anaerobicceramic membrane bioreactor

Chao Pang, Chunhua He, Zhenhu Hu, Shoujun Yuan, Wei Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 4, doi: 10.1007/s11783-019-1131-6

Abstract: itemcontent>

The existence of three-phase separator aggravated membrane

Keywords： Anaerobic membrane bioreactor     Three-phase separator     Membrane fouling     Methane leakage     Sludge property    

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Recent advances in membrane bioreactor technology for wastewater treatment in China

Xia HUANG, Kang XIAO, Yuexiao SHEN

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 245-271 doi: 10.1007/s11783-010-0240-z

Abstract: Since the introduction of the membrane bioreactor (MBR) in China in the early 1990s, remarkable progressSince membrane fouling is a critical operational problem with MBR processes, this paper also proposes

Keywords： membrane bioreactor (MBR)     municipal wastewater treatment     industrial wastewater treatment     membrane fouling    

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Title Author Date Type Operation

Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Journal Article

Building a Highly Stable Ultrathin Nanoporous Layer Assisted by Glucose for Desalination

Yanqiu Zhang, Fan Yang, Hongguang Sun, Yongping Bai, Songwei Li, Lu Shao

Journal Article

Largely reduced cross-plane thermal conductivity of nanoporous In

Dongchao XU, Quan WANG, Xuewang WU, Jie ZHU, Hongbo ZHAO, Bo XIAO, Xiaojia WANG, Xiaoliang WANG, Qing HAO

Journal Article

Progress in the Physisorption Characterization of Nanoporous Gas Storage Materials

Katie A. Cychosz,Matthias Thommes

Journal Article

Transport in Nanoporous Media

Weiyao Zhu,Bin Pan,Zhen Chen,Wengang Bu,Qipeng Ma,Kai Liu,Ming Yue

Journal Article

Overcoming oral insulin delivery barriers: application of cell penetrating peptide and silica-based nanoporous

Huining HE, Junxiao YE, Jianyong SHENG, Jianxin WANG, Yongzhuo HUANG, Guanyi CHEN, Jingkang WANG, Victor C YANG

Journal Article

Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

SUI Pengzhe, WEN Xianghua, HUANG Xia

Journal Article

Novel membrane separation technologies and membrane processes

Yanying Wei, Gongping Liu, Jianquan Luo, Libo Li, Zhi Xu

Journal Article

A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

Journal Article

A review on membrane distillation in process engineering: design and exergy equations, materials and

Journal Article

Pilot plants of membrane technology in industry: Challenges and key learnings

Colin A. Scholes

Journal Article

Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

Journal Article

Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Journal Article

Aggravation of membrane fouling and methane leakage by a three-phase separator in an external anaerobicceramic membrane bioreactor

Chao Pang, Chunhua He, Zhenhu Hu, Shoujun Yuan, Wei Wang

Journal Article

Recent advances in membrane bioreactor technology for wastewater treatment in China

Xia HUANG, Kang XIAO, Yuexiao SHEN

Journal Article