Lihui Xu

• Tsinghua University

Polyester (PET) textiles, which are widely used in interior furnishings, seating and clothing, are highly flammable and readily produce high temperature melt droplets, which present significant safety hazards in everyday use. To enhance the flame retardant and anti-melt drop properties of PET fabrics, the DOPO derivative (DTA) with benzimidazole st...

Wearable functional textiles have drawn extensive attention in a wide range of industries due to their distinctive advantages. Unfortunately, conventionally developed microwave-absorbing textiles are generally limited in practical applications because of their subpar performance in terms of stability and poor durability. Superhydrophobic and microw...

The increasing demand for electronic products has exacerbated the phenomenon of electromagnetic pollution, which in turn has driven the development of high-performance flexible microwave absorbing materials. In this work, cotton fabrics were first modified with polydopamine (PDA). Afterwards, the polydimethylsiloxane (PDMS) and porous peanut shell...

To address the issue of electromagnetic radiation, it was essential to create a thin, lightweight absorber that possesses a broad bandwidth and superior absorption capabilities. In this study, MoS2/RGO composites with three-dimensional multilayer flower-like structures were synthesized by hydrothermal method with graphene oxide (GO). Effect of hydr...

Biomass-derived carbon materials have attracted considerable attention in electromagnetic wave (EMW) absorption applications due to their advantages of low cost, light weight, and sustainability. Herein, bagasse-based porous carbon (BPC) was prepared by canonization and activation process from natural waste bagasse. The porous flower-like MoS2/BPC...

The emergence of advanced wave-absorbing materials has led to a growing interest in biomass-derived porous carbon due to its abundant availability, low density, and eco-friendly nature. This study utilized peanut shell biomass waste to produce porous carbon material (KPS) through a two-step carbonation-activation process. We investigated the influe...

Durable superhydrophobic fabrics with electromagnetic wave absorption were highly valuable in practical applications. In this work, durable superhydrophobic cotton fabrics with electromagnetic wave absorption were successfully prepared by modifying the cotton fabrics with polydopamine (PDA) and then depositing MoS2/RGO (MR) composites and polydimet...

Graphene/Ag composite aerogels (GA/Ag) with three-dimensional hierarchical porous microstructure were prepared by in-situ formation of silver nanoparticles obtained from AgNO 3 into the porous structure of graphene aerogel. When the used AgNO 3 concentration was 12[Formula: see text]wt.%, the specific surface area of the obtained GA/Ag was 128.6[Fo...

Electromagnetic interference (EMI) shielding fabrics have a wide range of applications for human and equipment protection. However, it is a challenge for single electromagnetic shielding textiles to apply in the harsh practical environments. Herein, superhydrophobic electromagnetic shielding polyester fabric obtained through combining the conductiv...

Durable superhydrophobic fabrics with electromagnetic wave absorption were highly valuable in practical applications. In this work, durable superhydrophobic cotton fabrics with electromagnetic wave absorption were successfully prepared by modifying the cotton fabrics with polydopamine (PDA) and then depositing MoS 2 /RGO (MR) composites and polydim...

In this study, the lignin-based carbon/TiO 2 (LCT) nanocomposite photocatalyst was prepared by the Sol-gel-carbonization method. The raw material of carbon precursor was lignin extracted from coconut by the solvent heating method. The optimal conditions for lignin extraction, such as material ratio, temperature and time, were investigated. The opti...

Due to excellent biocompatibility, sufficient raw material, robust mechanical properties and easy cross‐linking, Silk Fibroin (SF) is a promising protein for 3D printing inks and an ideal candidate for 3D scaffolds in fields like regenerative medicine, bioelectronics and bio‐optics. In order to meet the requirements of print accuracy, mechanical pr...

In the present study, the superhydrophobic cotton fabrics with ultraviolet (UV) resistance and photocatalytic properties were fabricated by polydimethylsiloxane (PDMS) and CuS/reduced graphene oxide (RGO). The CuS/RGO particles enhanced the surface roughness, and PDMS was used to reduce the surface energy of cotton fabrics and increase the adhesion...

This paper showed two bio-based shape-stable composite phase change materials (PCMs) which were prepared through a convenient vacuum impregnation method. Lignin-based ordered porous carbon (LOC) was the porous supporting material, polyethylene glycol (PEG) and paraffin (PA) was the phase change substance in this work. The maximum loading of PCMs in...

A long-lasting power source is crucial for a sustainable operation of implanted medical devices. However, the battery-powered medical electronic devices are at risk of failure due to insufficient power energy. As an emerging energy conversion technologies, the Nanogenerators (NG) that could convert micro-/nano-scale mechanical energy into electrici...

The anatase phase titanium dioxide sols were prepared by hydrothermal method using titanium sulfate as the titanium source. Copper acetate monohydrate was used as the copper source, cubic phase Cu 2 O with matched bandgap TiO 2 was introduced to synthesize hollow spherical nano-TiO 2 /Cu 2 O composites by precipitation method. The powder samples we...

Nowadays, the application range of biomass materials is more and more extensive. In this work, peanut shell powder was used as the raw material. The cellulose nanofibrils was extracted from it by chemical mechanical method. Then, using the sol-gel method, methyltrimethoxysilane (MTMS) was added to the peanut shell cellulose nanofibrils suspension t...

This paper showed two bio-based shape-stable composite phase change materials which were prepared through a convenient vacuum impregnation method. Lignin-based ordered porous carbon (LOC) was the porous supporting material, polyethylene glycol (PEG) and paraffin (PA) was the phase change substance in this work. The maximum loading of PCMs in the ob...

In this study, green cellulose nanofibers-based composites were successfully prepared for efficient wide-band electromagnetic absorber to realize functional and high-value diversified utilization of cellulose nanofibers. Specifically, by the introduction of reduced graphene oxide (RGO) and flower-like copper sulfide (CuS) into CNFs used as raw mate...

In this work, The NiCo2O4 with 3D hierarchical multilayer flower-like structure was prepared by the low-temperature (55 °C) co-precipitation method combined with the calcination process, avoiding the traditional high-temperature hydrothermal synthesis method. The prepared flower-like NiCo2O4 with a large specific surface area was characterized by X...

In this work, graphene/Ag (GA/Ag) composite aerogels with the micro rough porous structure and conductive property and polydimethylsiloxane(PDMS) with the low surface energy were used to prepare super-hydrophobic cotton fabric (GA/Ag/PDMS@cotton) with conductive property was successfully prepared. The surface morphologies, chemical composition, wet...

Lignin-based carbon/zinc oxide (LCZ) composites with excellent porous structures were prepared by a one-step carbonization method using lignin as the carbon source. The effects of different carbonization conditoions (temperature, carbonization time and QAL addition) on the pore structure of the composites were investigated. The results showed that...

Robust superamphiphobic cotton fabrics with antifouling and self-healing performance were prepared via a simple spraying method. With the composite coating of 1H, 1H, 2H, 2H- perfluorodecyltriethoxysilane (FAS), FAS modified silica aerogel (F-SiO2), and polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP), the obtained cotton fabrics showed excel...

Nowadays, the application range of biomass materials was more and more extensive.In this work,peanut shell powder was used as the raw material. The nanocellulose is extracted from it by chemical mechanical method.Then, using the sol-gel method, methyltrimethoxysilane(MTMS) is added to the peanut shell nanocellulose suspension to modify it. Finally,...

In this work, robust superhydrophobic cotton fabrics with ultraviolet (UV) shielding, self-cleaning, photocatalysis, and oil/water separation were successfully prepared based on micro/nano hierarchical ZnO/HNTs (halloysite nanotubes) hybrid particles and silicone elastomer polydimethylsiloxane (PDMS). ZnO/HNTs hybrid particles were prepared by in-s...

Lignin-based porous carbon (LTC), lignin-based hierarchical porous carbon (LTCA) and lignin-based ordered porous carbon (MC) with different pore structures were prepared by template method and chemical activation method using lignin as raw material. The lignin-based carbon composite phase change materials were prepared by vacuum impregnation with p...

Lignin-based carbon/ZnO (LCZ) composites were prepared by one-step carbonization method using lignin as carbon source. The effects of different carbonization conditoions (temperature, carbonization time and QAL addition) on the pore structure of the composites were investigated. The results showed that the obtained LCZ composite had the largest spe...

In this work, graphene/Ag (GA/Ag) composite aerogels with the micro rough porous structure and conductive property and polydimethylsiloxane(PDMS) with the low surface energy were used to prepare super-hydrophobic cotton fabric (GA/Ag/PDMS@cotton) with conductive property was successfully prepared. The surface morphologies, chemical composition, wet...

Smart hydrogels that connect shape memory and self-healing properties through the same interaction are popular research projects. Based on supramolecular action and dynamic covalent bonds, a L-cysteine-Polyvinyl alcohol/hydroxyethyl cellulose(Cys-PVA/HEC) IPN hydrogel with shape memory and self-repair properties was prepared. Cys was grafted onto P...

A novel Z-scheme flower-like Ag2WO4/ Bi2WO6 (AWO/ BWO) photocatalyst with excellent photocatalytic activity for the contaminant degradation was successfully fabricated through a facile hydrothermal-precipitation method. Various characterization techniques and electrochemical measurements were exploited to study the morphology, structure, photoelect...

In this work, robust superhydrophobic cotton fabrics with UV shielding, self-cleaning, photocatalysis, and oil/water separation were successfully prepared based on micro/nano hierarchical ZnO/HNTs (halloysite nanotubes) hybrid particles and silicone elastomer polydimethylsiloxane (PDMS). ZnO/HNTs hybrid particles were prepared by in-situ growth of...

In order to realize the characteristics of new types of wave-absorbing materials, such as strong absorption, broad bandwidth, low weight and small thickness, a hollow-structured flower-like Fe3O4@MoS2 composite was successfully prepared by simple solvothermal and hydrothermal methods in this paper. The structural properties were characterized by X-...

A durable superamphiphobic cotton fabric was obtained by coating SiO2 aerogel particles, polydimethylsiloxane (PDMS), and 1H,1H,2H,2H-perfluorooctyltriethoxysilane (PFTES) on a cotton fabric via the dip-pad-dry process. The surface morphology, chemical composition, and thermal degradation behavior characterization of the as-prepared cotton fabric (...

In this work, superhydrophobic methyltrimethoxysilane (MTMS)-based silica aerogels were fabricated via water-based sol–gel reaction by ambient pressure drying (APD) method in the presence of surfactant. The structure, morphology, and hydrophobic properties of the obtained silica aerogel were characterized by scanning electron microscopy (SEM), Brun...

A modified polyester fabric (MPF) was successfully coated with a sphere-like zinc oxide (ZnO) microstructures in water bath. The characterization of the finished fabric was carried out using SEM, XRD and EDS. UV-vis spectrophotometry was investigated for the UV-blocking property of the as-obtained sample, as well as the photocatalytic behaviour of...

Adsorption treatment of dyes from industrial effluent by hydrogel adsorbent has been a research hotspot, but few high-performance hydrogel adsorbents with high adsorption capacity have been reported. Previously reported poly (acrylic acid) PAA-based hydrogel adsorbents show a low swelling ratio due to the unsatisfactory cross-linked structure, which...

Robust superhydrophobic cotton fabrics with ultraviolet (UV)-proof performance were prepared via a simple one-pot method with composite coating of hierarchical CuS microflower nanoparticles and silicone elastomer polydimethylsiloxane (PDMS). The facile preparation of CuS microflower nanoparticles was conducted via relatively low-temperature reactio...

A novel chitosan derivative, O-acrylamidomethyl-N-[(2-hydroxy-3- dimethyldodecylammonium) propyl] chitosan chloride (NMA-HDCC), was synthesized by reacting chitosan (CTS) with epoxypropyl dodecyl dimethyl quaternary ammonium salt and N-methylolacryl amide (NMA). The chemical structure of the quaternized chitosan was analyzed by FTIR and NMR. The wa...

Superhydrophobic and ultraviolet (UV)-blocking cotton fabrics were prepared by the incorporation of TiO2/SiO2 composite nanoparticles followed by hydrophobization with hexadecyltrimethoxysilane (HDTMS). The TiO2/SiO2 composite nanoparticles were synthesized via sol-gel reaction with tetraethyl orthosilicate (TEOS) as the precursor in the presence o...

Durable superhydrophobic cotton textiles with ultraviolet-blocking property and photocatalytic activity were prepared by coating polydimethylsiloxane (PDMS)/CuS based on the hierarchical flower-like CuS. The hierarchical flower-like CuS with mesoporous structures was composed of self-assembled nanosheets. The treated textiles showed excellent super...

A facile method for the preparation of acid-resistant fabric with the fluoropolymer/SiO2 hybrid materials was presented. The polyester fabric was treated using a dip-dry technique and, subsequently, cured under high temperature. The results showed that the treated fabric displayed remarkable acid repellency with contact angles of 137.1°, 141.2°, an...

A facile method to prepare acid-resistant fabric with fluoropolymer/silicon dioxide (SiO2) nanocomposite is presented in this study. Response surface methodology (RSM) was employed to understand the influence factors of the optimized protocol for the acid-resistant fabric. During the preparation process, the effect level of the factors was agent co...

Anatase nano-TiO2 was synthesized by sol-gel method at a low temperature in this study. The effects of water amount and thermal crystallization treatment on the crystal structure and properties of nano-TiO2 were investigated. Crystal structure of nano-TiO2 was characterized by X-ray diffractometer and high-resolution transmission electron microscop...

A fluoropolymer/silica (FP/SiO2) organic-inorganic nanocomposite was synthesized by copolymerization of butyl acrylate (BA), methyl methacrylate (MMA), 2-hydroxyethyl acrylate (HEA), and dodecafluoroheptyl methacrylate (DFMA) based on vinyl nano-silica (V-SiO2) using emulsion polymerization. The V-SiO2 was prepared via water-based sol-gel reaction...

The hexadecyltrimethoxysilane(HDTMS)-modified silica (H-SiO2) nanocomposite hydrosol was prepared via water-based sol-gel reaction with methyltrimethoxysilane (MTMS) and HDTMS as precursors under alkaline condition in the presence of surfactant. The influences of base catalyst amount and surfactant concentration on the particle size and distributio...

The dispersion property of modified nano-TiO2 particles and its antibacterial properties on cotton fabrics were studied. The nano-TiO2 particles were modified with reactive groups (such as hydroxyl groups, amino groups and silica groups). The modified nano-TiO2 particles were characterized by particle size analyzer, Fourier transform-infrared spect...

A facile method to prepare superhydrophobic fluoropolymer/SiO2 nanocomposites coating on polyester (PET) fabrics was presented. The vinyl nanosilica (VSiO2) hydrosols were prepared via one-step water-based sol-gel reaction with vinyl trimethoxy silane as the precursors in the presence of the base catalyst and composite surfactant. Based on the VSiO...

The successful one-step preparation method of vinyl hybrid nanosilica (V-SiO2) hydrosols was studied. TheV-SiO2 hydrosols were prepared via water-based sol-gel reaction with vinyl trimethoxy silane (VTMS) as the precursors under alkaline condition in the presence of composite surfactant. The formation mechanism of V-SiO2 nanoparticles was explained...

A simple one-step superhydrophobic coating method for cotton fabrics based on a modified silica hydrosol is presented in this study. The modified silica hydrosol was prepared by the co-hydrolysis/co-condensation of methyl trimethoxy silane and a non-fluoro compound, hexadecyltrimethoxysilane, via water-based sol–gel reaction under alkaline conditio...

Superhydrophobic cotton fabrics were prepared by the incorporation of silica nanoparticles and subsequent hydrophobization with hexadecyltrimethoxysilane (HDTMS). The silica nanoparticles were synthesized via sol–gel reaction with methyl trimethoxy silane (MTMS) as the precursor in the presence of the base catalyst and surfactant in aqueous solutio...