Maicun Deng

Maicun Deng
Chinese Academy of Sciences | CAS · Dalian Institute of Chemical Physics

About

44
Publications
2,596
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1,613
Citations
Citations since 2017
13 Research Items
960 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150

Publications

Publications (44)
Article
A series of Pebax 2533/triglyceride (20 wt%) blend membranes were prepared to study the influence of triglyceride structure on Pebax-based membrane for the first time. The microstructure and morphology of blend membranes were characterized by XRD and SEM. The interaction and compatibility between Pebax and triglyceride were characterized by ATR-FTI...
Article
To provide insight into the formation process of carbon molecular sieve (CMS) hollow fiber membranes (HFMs), P84 co-polyimide HFMs were thermally treated at 200, 250, 300, 350, 400, 550, 650, and 800 °C. TG-MS was used to study the weight loss and released gases at all temperatures. In situ SEM, HIM (helium ion microscope) and in situ XRD were used...
Article
Block polymers with thermal annealing are attractive routes to produce 6FDA-based polyimide membranes with enhanced gas separation performance. However, some 6FDA-based polyimide membranes exhibit different gas separation behavior trends under the thermal annealing process. In this work, Two 6FDA-DETDA/DMMDA block polyimide membranes with different...
Article
In this paper, ethyl phthalyl ethyl glycolate (EPEG) was first introduced into Pebax to prepare Pebax/EPEG MMMs for CO2 separation. The thermal properties and the gas permeation properties of the MMMs were investigated. The micro-nano structure of the MMMs and the interaction between Pebax and EPEG were studied with fourier transform infrared spect...
Article
Poly(ether-block-amide) (Pebax)/tricaproin (TCP) gel membranes were prepared for the first time with TCP content varying from 0 to 80 wt.%. And the effect of structure change from Pebax polymeric membrane to Pebax/TCP gel membrane on CO2 separation was studied. Membrane morphology and crystallinity was characterized by scanning electron microscope...
Article
The incorporation of metal-organic frameworks (MOFs) into mixed-matrix membranes (MMMs) is gaining widespread attention because of the combined advantages of easy processability and superior separation performance. In this paper, submicrometer-sized [Ni3(HCOO)6] frameworks were incorporated into BTDA-TDI/MDI (P84) matrix as filler material to separ...
Article
In this paper, BTDA-TDI/MDI (P84) co-polyimide hollow fiber membranes (HFMs) were prepared by dry-jet wet spinning technique. The P84 HFMs were thermally annealed below and above P84 Tg (321.5 °C) to investigate their mechanical properties and gas separation properties. Thermally annealing at different temperature below and above Tg influenced the...
Article
Fullerenol C60(OH)24 derived from the surface hydroxylation of fullerene was incorporated into the Pebax matrix for the first time to fabricate Pebax-C60(OH)24/PAN thin film composite membranes (TFCMs) via dip coating method. To fully understand the behavior of Pebax-based TFCMs, the corresponding dense membranes were prepared and characterized by...
Article
Polyether‐block‐amide (Pebax)/glycerol triacetate (GTA) blend membranes with various compositions were prepared with a solution‐casting method. The gas‐separation performance, thermal stability, and storage stability of the prepared membranes were investigated at different pressures and temperatures. The Arrhenius equation was used to describe the...
Article
In this paper, Pebax and Pebax-Tripropionin (TPP) blend multilayer composite membranes were firstly prepared with the aids of low-temperature plasma treatment, and the CO2/N2 separation properties of the prepared composite membranes were studied. For multilayer composite membranes, PDMS gutter layer was modified with low-temperature plasma of air....
Article
Membranes from block copolymer poly (amide-12-b-ethylene oxide) (Pebax1074) and its blends with different molecular weight poly (ethylene glycol) (PEG) (200, 400, 600, 1500, 4600 and 8000) were prepared. The thermal properties and structures of Pebax1074/PEG blend membranes were characterized by DSC and SEM, and the gas permeation properties of CO2...
Article
1-ethyl-3-methylimidazolium hexafluorophosphate ([Emim][PF6]) was incorporated into poly(amide-6-b-ethylene oxide) (Pebax1657) to prepare blend membranes. The physical properties of Pebax1657/[Emim][PF6] blend membranes were characterized by fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and scanning electro...
Article
Pebax®/CNTs (MWNTs, MWNTs-OH and MWNTs-NH2) and Pebax®/MWNTs-NH2/GTA mixed matrix membranes (MMMs) were prepared with solution-casting method. First, the effect of CNTs functionalization on the properties of Pebax®/CNTs MMMs was studied. The functionalization of CNTs promoted their dispersion in Pebax® matrix. The gas permeabilities of Pebax®/CNTs...
Article
Poly(amide-6-b-ethylene oxide) (Pebax1657)/1-butyl-3-methylimidazo-lium bis[trifluoromethyl)sulfonyl]-imide ([Bmim][Tf2N]) blend membranes with different [Bmim][Tf2N] contents were prepared via solution casting and solvent evaporation method. The permeation properties of the blend membranes for CO2, N2, CH4 and H2 were studied, and the physical pro...
Article
Polyether-block-amide (Pebax)/graphene oxide (GO) mixed-matrix membranes (MMMs) were prepared with a solution casting method, and their gas-separation performance and mechanical properties were investigated. Compared with the pristine Pebax membrane, the crystallinity of the Pebax/GO MMMs showed a little increase. The incorporation of GO induced an...
Article
Amino modified multi-walled carbon nanotubes (MWNTs-NH2) were incorporated into poly(amide-6-b-ethylene oxide) (Pebax 1657) to prepare mixed matrix membranes (MMMs). The permeation properties of CO2, N-2, CH4 and H-2 were studied and the physical properties of Pebax/MWNTs-NH2 MMMs were characterized by X-ray diffractometer (XRD), Fourier transform...
Article
In this paper, poly(amide-6-b-ethylene oxide) (Pebax1657)/SAPO-34 mixed matrix membranes (MMMs) were prepared by solvent-evaporation method with acetic acid as a novel solvent. CO2, N-2, CH4 and H-2 permeation properties were investigated, and the physical properties of Pebax/SAPO-34 MMMs were characterized by XRD and SEM. At low SAPO-34 content, i...
Article
In this paper, CO2-philic membranes are prepared with poly(amide-12-b-ethylene oxide) (Pebax1074) and glycerol triacetate (GTA) by polymer blending, which show excellent compatibility for different GTA compositions. The additive GTA into Pebax1074 matrix can improve the chain mobility, induce high CO2-philicity and decrease membrane crystallinity....
Article
In this paper, blend membranes from polyvinyl acetate (PVAc) and block copolymer poly(amide-12-b-ethylene oxide) (Pebax1074) are prepared by solution casting and solvent evaporation method. Although they are homogeneous on a macro-scale, the observations from DSC and SEM indicate micro-phase separation for PVAc/Pebax1074 blend membranes. With the i...
Article
In this study, a microalga Tetraselmis subcordiformis (synonym: Platymonas subcordiformis)based photoanode was prepared by a novel method developed in our lab. The optimal photocurrent density of microalgae photoanode, 37 mu A/cm(2), was achieved under illumination of 145 mu mol s(-1) m(-2) at anode potential of 0.5 V vs Ag vertical bar AgCl vertic...
Article
In this paper, block copolymer poly(amide-12-b-ethylene oxide) (Pebax1074)/poly(ethylene glycol) (PEG1500) blend membranes are prepared by solution casting and solvent evaporation method. According to DSC experiments, the melting temperature for PEO phase in Pebax1074/PEG1500 blend membranes increases with the increase of PEG1500 content, which wil...
Article
In this paper, the effect of hydrogen reduction of silver ions on the performance and structure of new solid polymer electrolyte polyetherimide (PEI)/Pebax2533 (Polynylon12/tetramethylene oxide block copolymer, PA12-PTMO)/AgBF4 composite membranes is investigated. For PEI/Pebax2533/AgBF4 composite membranes prepared with different AgBF4 concentrati...
Article
In this paper, poly(amide-6-beta-ethylene oxide) (PEBA1657) copolymer was used to prepare multilayer polyetherimide (PEI)/polydimethylsiloxane (PDMS)/PEBA1657/PDMS composite membranes by dip-coating method. Permeation behaviors of ethylene, ethane, propylene, propane, n-butane, methane and nitrogen through the multilayer composite membranes were in...
Article
In this paper, block copolymer poly (amide-6-b-ethylene oxide) Pebax® MH 1657 (PEBA1657) is used to prepare multilayer polyetherimide (PEI)/polydimethylsilicone (PDMS)/PEBA1657/PDMS composite membranes according to dip-coating method. The PDMS gutter layer is mainly used for preventing the pore penetration of PEBA1657 solution and the PDMS protecti...
Article
In this paper, poly(amide-6-b-ethylene oxide) (PEBA1657) copolymer was used to prepare polyetherimide (PEI)/PEBA1657 composite membranes and ultra thin multilayer PEI/polydimethylsilicone (PDMS)/PEBA1657/PDMS composite membranes by dip-coating method for sour gas capturing. The gas permeation and transport characteristics of sour gases (CO2, H2S, a...
Article
In this paper, a new solid polymer electrolyte PEI/Pebax2533/AgBF4 composite membrane (PEI: polyetherimide; Pebax2533: Polynylon12/tetramethylene oxide block copolymer, PA12-PTMO) is prepared with complexing method. When the external surface of Pebax2533 layer is immersed into AgBF4 solution, silver salt transfers into Pebax2533 layer according to...
Article
Bioproduction of 13C-labeled trans-resveratrol in plant cell culture has attracted considerable attention with regard to potential applications for human benefit and to better understanding their absorption and in vivo metabolism in humans and animals. In the present work, two elicitors (SA and JA) and adsorbents (HP2MGL) were introduced into the V...
Article
In this paper, asymmetric flat sheet membranes are prepared with polyetherimide (PEI)/N-methyl-2-pyrrolidone (NMP)/nonsolvent (NS, NS = H2O, ethanol (EtOH), glycerin (PG), polyethylene glycol200 (PEG200)) casting solutions by wet phase-inversion process with different approaching ratios. The thermodynamic behavior of PEI/NMP/NS casting solutions is...
Article
In this paper, asymmetric membranes are prepared with P84 (BTDA-TDI/MDI co-polyimide)/N-methyl-2-pyrrolidone (NMP)/γ-butyrolactone (GBL) and polyetherimide (PEI)/NMP/GBL casting solutions by wet phase-inversion process. And the transition of membrane morphology is investigated with different flat sheet and thickness-gradient membranes. For the thic...
Article
Based on the molecular diversity information, seven actinomycete-selective culture media and isolation conditions were modified to isolate and cultivate diverse rare actinomycetes from Hymeniacidon perlevis. Modified, selective cultivation and enrichment media were used, with the addition of an elemental solution of simulating the elemental composi...
Article
In this paper, the thickness-gradient membranes defined as flat sheet membranes with an increasing membrane thickness were prepared using polyetherimide (PEI)/N-methyl-2-pyrrolidone (NMP)/γ-butyrolactone (GBL) casting solutions with the same polymer concentration (15wt% PEI) and two different ratio of NMP/GBL by wet phase-inversion process. With an...
Article
A culture-independent nested polymerase chain reaction (PCR) technique was used to investigate the diversity of actinobacteria communities associated with the sponges Hymeniacidon perleve and Sponge sp. The phylogenetic affiliation of sponge-derived actinobacteria was then assessed by 16S rRNA sequencing of cloned DNA fragments. A total of 196 posi...
Article
Water vapor permeation through a silicone rubber-PSF (polysulfone) resistance composite membrane was studied. The resistance of the asymmetric composite membrane to the permeation of nitrogen, hydrogen, and water vapor is discussed on the basis of a serial resistance model. Compared with nitrogen and hydrogen, the resistance to water vapor is not a...
Article
Uncouplering carbonylcyanide-m-chlorophenylhydrazone [CCCP] can markedly inhibit the photochemical activity of photosystem II and repress the rate of photosynthetic oxygen evolution. As a result, the anaerobic condition can promptly induce hydrogenase expression and accelerate hydrogen photoproduction under the continuous illumination by Chlamydomo...
Article
A novel polysulfone/polyethylene oxide/silicone rubber (PSf/PEO/SR) multilayer composite membrane was fabricated by double coating polysulfone substrate membrane with polyethylene oxide and silicone rubber. Gas permeation experiments were performed at 30 °C for hydrogen and nitrogen. PSf/PEO/SR membrane displayed high and steady performance for H2/...
Article
Marine sponge cell culture is a potential route for the sustainable production of sponge-derived bioproducts. Development of a basal culture medium is a prerequisite for the attachment, spreading, and growth of sponge cells in vitro. With the limited knowledge available on nutrient requirements for sponge cells, a series of statistical experimental...
Article
Full-text available
A marine green microalga, Platymonas subcordiformis, photo-synthetically generates H(2) but only transiently at a negligible yield when exposed to light after a period of dark anaerobic incubation. A protonophore uncoupler, carbonyl cyanide m-chlorophenylhrazone (CCCP) significantly increased the yield of H(2) photo-production. CCCP optimally at 15...
Article
A marine green alga, Platymonas subcordiformis, was demonstrated to photobiologically evolve hydrogen (H2) after the first stage of photosynthesis, when subjected to a two-phase incubation protocol in a second stage of H2 production: anaerobic incubation in the dark followed by the exposure to light illumination. The anaerobic incubation induced hy...
Article
A modified microfiltration membrane has been prepared by blending a matrix polymer with a functional polymer. Cellulose acetate (CA) was blended with polyethyleneimine (PEI), which was then crosslinked by polyisocyanate, in a mixture of solvents. In the membrane, PEI can supply coupling sites for ligands in affinity separation or be used as ligands...
Article
Toward the development of an in vitro cultivation of marine sponge cells for sustainable production of bioactive metabolites, the attachment characteristics of marine sponge cells of Hymeniacidon perleve on three types of microcarriers, Hillex, Cytodex 3, and glass beads, were studied. Mixed cell population and enriched cell fractions of specific c...
Article
The establishment and optimization of in vitro primmorph formation from a Chinese sponge, Stylotella agminata (Ridley), collected from the South China Sea, were investigated. Our aims were to identify the key factors affecting primmorph formation in this species and to optimize the technique for developing an in vitro primmorph culture system. The...
Article
Pt-Mo/SiO 2 bimetallic catalysts of 3wt%Pt-1.1wt%Mo prepared by anchoring ana impregnation technioues are examined and compared. TPR, ESR and TEM measurements and n-pentane conversion are used to characterize the surface properties and the catalytic behavior of different prepration respectively. The results clearly domonstrate the significant effec...
Chapter
Supported platinum catalysts of different activity and selectivity are prepared and studied in relation to the rule of product distribution obtained for the conversion of alkanes. Four mutually dependent reactions, i.e. the cyclization and the cyclic isomerization via 1,5 adsorbed species and the isomerization and hydrogenolysis via 1,3 adsorbed sp...

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