ORCID Profile
0000-0002-3025-7734
Current Organisation
University of Science and Technology of China
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Composite and Hybrid Materials | Functional Materials | Polymers and Plastics | Materials Engineering
Industrial Chemicals and Related Products not elsewhere classified | Plastic Products (incl. Construction Materials) |
Publisher: Elsevier BV
Date: 03-2022
Publisher: Bentham Science Publishers Ltd.
Date: 08-2021
DOI: 10.2174/2665976X02666210114162059
Abstract: Metal-organic Frameworks (MOFs) are a class of porous crystalline materials that are assembled by multiple metal ions and organic linkers, featuring high specific surface area and tailorable structures. MOFs exhibit semiconductor-like behavior due to the inorganic fragment in the framework. Principally, the perfect crystalline structure inhibits the formation of charge recombination centers, and their porous characters facilitate the rapid/efficient utilization of the photogenerated electrons and holes. Therefore, in recent years, MOF based materials have received increasing attention for their applications in photocatalysis. Here, starting from the photocatalytic mechanism toward hydrogen production on MOF based materials, the three key photocatalytic processes: Light absorption, electron- hole separation, and surface redox reactions, will be illustrated according to the recent reports. In addition, MOF derivatives for photocatalytic hydrogen production is briefly introduced. Finally, the conclusions and perspectives are provided for the future development of MOF based photocatalysts.
Publisher: Elsevier BV
Date: 09-2019
Publisher: Elsevier BV
Date: 07-2019
Publisher: MDPI AG
Date: 03-06-2019
Abstract: Fabricating high-performance MXene-based polymer nanocomposites is a huge challenge because of the poor dispersion and interfacial interaction of MXene nanosheets in the polymer matrix. To address the issue, MXene nanosheets were successfully exfoliated and subsequently modified by long-chain cationic agents with different chain lengths, i.e., decyltrimethylammonium bromide (DTAB), octadecyltrimethylammonium bromide (OTAB), and dihexadecyldimethylammonium bromide (DDAB). With the long-chain groups on their surface, modified Ti3C2 (MXene) nanosheets were well dispersed in N,N-dimethylformamide (DMF), resulting in the formation of uniform dispersion and strong interfacial adhesion within a polystyrene (PS) matrix. The thermal stability properties of cationic modified Ti3C2/PS nanocomposites were improved considerably with the temperatures at 5% weight loss increasing by 20 °C for DTAB-Ti3C2/PS, 25 °C for OTAB-Ti3C2/PS and 23 °C for DDAB-Ti3C2/PS, respectively. The modified MXene nanosheets also enhanced the flame-retardant properties of PS. Compared to neat PS, the peak heat release rate (PHRR) was reduced by approximately 26.4%, 21.5% and 20.8% for PS/OTAB-Ti3C2, PS/DDAB-Ti3C2 and PS/DTAB-Ti3C2, respectively. Significant reductions in CO and CO2 productions were also obtained in the cone calorimeter test and generally lower pyrolysis volatile products were recorded by PS/OTAB-Ti3C2 compared to pristine PS. These property enhancements of PS nanocomposites are attributed to the superior dispersion, catalytic and barrier effects of Ti3C2 nanosheets.
Publisher: CRC Press
Date: 20-06-2023
Publisher: MDPI AG
Date: 02-2019
Abstract: Manganese dioxide (MnO2), as a promising green material, has recently attracted considerable attention of researchers from various fields. In this work, a facile method was introduced to prepare binary hybrids by fabricating three-dimensional (3D) zinc hydroxystannate (ZHS) cubes on two-dimensional (2D) MnO2 nanosheets towards excellent flame retardancy and toxic effluent elimination of epoxy (EP) resin. Microstructural analysis confirmed that the morphologies and structures of MnO2@ZHS binary hybrids were well characterized, implying the successful synthesis. Additionally, the morphological characterization indicated that MnO2@ZHS binary hybrids could achieve satisfactory interfacial interaction with the EP matrix and be well dispersed in nanocomposites. Cone calorimeter test suggested that MnO2@ZHS binary hybrids effectively suppressed the peak of heat release rate and total heat release of EP nanocomposites, performing better than MnO2 or ZHS alone. Condensed-phase analysis revealed that MnO2@ZHS binary hybrids could promote the char density and graphitization degree of char residues and thereby successfully retard the permeation of oxygen and flammable gases. Moreover, through the analysis of gas phase, it can be concluded that MnO2@ZHS binary hybrids could efficiently suppress the production of toxic gases during the degradation of EP nanocomposites. This work implies that the construction of 2D/3D binary hybrids with an interfacial interaction is an effective way to fabricate high-performance flame retardants for EP.
Publisher: SAGE Publications
Date: 11-2020
Abstract: The demand for environmentally benign flame retardants for biodegradable polymers has become particularly necessary due to their inherently “green” nature. This work reports intrinsically non-toxic polydopamine (PDA) particles as an efficient and environmentally friendly flame retardant for polylactic acid (PLA). 5 wt% PDA loading resulted in a 22% reduction in the peak heat release rate, 34.7% increase in the fire performance index, and lower CO 2 production compared to neat PLA. A limiting oxygen index (LOI) value of 27.5% and a V-2 rating was achieved in the UL-94 vertical burning test. Highly aggregated amorphous particulate char was formed with the increasing content of PDA, and a significant reduction in evolved pyrolysis gaseous products was achieved for the PLA/PDA composites as compared with control PLA. This work provides important insight into the potential commercial application of PDA alone as an efficiently green, environmentally benign flame retardant for bioplastic PLA.
Publisher: Elsevier BV
Date: 06-2020
Publisher: Elsevier BV
Date: 10-2019
DOI: 10.1016/J.JCIS.2019.06.015
Abstract: Melamine-phytate (MEL-PA) nanoflakes are formed by supramolecular self-assembly technology using melamine (MEL) and bio-based phytic acid (PA) as the building blocks. This work explores the possibility of this two-dimensional nanomaterial as flame retardant. The layered MEL-PA with the loading of 1, 2 and 3 wt% are incorporated into polypropylene (PP) matrix. MEL-PA is dispersed well in the PP matrix. Thermal stability and flame retardant performance of PP/MEL-PA composites are investigated. Compared with neat PP, the addition of 2 wt% MEL-PA decreases the peak heat release rate from 756 to 608 kW/m
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0GC00449A
Abstract: Lignin-derived flame retardants represent one of the most promising directions for next-generation flame retardants due to their sustainability, environmental benefits and comparable efficiency to current non-bio-based counterparts.
Publisher: MDPI AG
Date: 19-04-2019
Abstract: The authors wish to make a change to the published paper [...]
Publisher: Wiley
Date: 10-05-2019
DOI: 10.1002/PAT.4649
Publisher: Elsevier BV
Date: 04-2020
DOI: 10.1016/J.JHAZMAT.2019.122006
Abstract: To date epoxy resins have been extensively used in the field of chemical engineering, aerospace and building materials. Nevertheless, the utilization of flammable epoxy resins has posed a huge threat to lives and properties, which restricted their applications. In this work, manganese-based cuprous oxides two-dimensional nanosheets (Mn@Cu
Publisher: American Chemical Society (ACS)
Date: 02-10-2019
Abstract: Polyimide (PI) aerogels have attracted great attention owing to their low density and excellent thermal stability. However, hydrophobic surface modification is required for PI aerogels to improve their ability in oil/water separation due to their hiphilic characteristic. Two-dimensional MXenes (transition metal carbides/nitrides) can be utilized as nanofillers to enhance the properties of polymers because of their unique layered structure and versatile interface chemistry. Herein, the robust, lightweight, and hydrophobic PI/MXene three-dimensional architectures were fabricated via freeze-drying of polyamide acid/MXene suspensions and thermal imidization. Polyamide acid was synthesized using
Publisher: Elsevier BV
Date: 10-2020
Publisher: Elsevier BV
Date: 08-2019
DOI: 10.1016/J.JCIS.2019.05.003
Abstract: Layered molybdenum disulfide (MoS
Publisher: Elsevier BV
Date: 12-2019
DOI: 10.1016/J.JHAZMAT.2019.120856
Abstract: Poly(lactic acid) (PLA) is an important bioplastic polymer with wide engineering applications, but has relatively low tensile strength and high susceptibility to flames. This manuscript reports the synthesis of a new cyclo-phosphorus-nitrogen flame retardant (FR) - hexaphenyl (nitrilotris(ethane-2,1-diyl))tris(phosphoramidate) (HNETP) for concurrent FR and tensile strength enhancement.
Publisher: Elsevier BV
Date: 02-2021
Publisher: Elsevier BV
Date: 02-2022
Publisher: Elsevier BV
Date: 02-2020
Start Date: 06-2019
End Date: 01-2021
Amount: $407,000.00
Funder: Australian Research Council
View Funded Activity