Nature Communications
·
2024
·Vol. 15
·期 1
·1-11
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IF 14.7
Liu Xianhu,Zhang Wenrui,Zhang Xin,Zhou Zhengui,Wang Chunfeng,Pan Yamin,Hu Bin,Liu Chuntai,Pan Caofeng,Shen Changyu
The rational use and conversion of energy are the primary means for achieving the goal of carbon neutrality. MXenes can be used for photothermal conversion, but their opaque appearance limits wider applications. Herein, we successfully develop visible-light transparent and UV-absorbing polymer composite film by solution blending the MXene with polyethylene and then vacuum pressing. The resulting film could be quickly heated to 65 °C under 400 mW cm −2 light irradiation and maintained over 85% visible-light transmittance as well as low haze (<12%). The findings of the indoor heat insulation test demonstrate that the temperature of the glass house model covered by this film was 6-7 °C lower than that of the uncovered model, revealing the potential of transparent film in energy-saving applications. In order to mimic the energy-saving condition of the building in various climates, a typical building model with this film as the outer layer of the window was created using the EnergyPlus building energy consumption software. According to predictions, they could reduce yearly refrigeration energy used by 31-61 MJ m −2 , and 3%-12% of the total energy used for refrigeration in such structures. This work imply that the film has wide potential for use as transparent devices in energy-related applications.
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JOURNAL OF MEMBRANE SCIENCE
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2025
·
IF 9
Xuewu Zhu,Wenxin Yan,Hong Peng,Zhe Yang,Zhiwei Zhou,Daoji Wu,Liping Qiu,Daliang Xu,Ning Wang,Feiyong Chen
Regulating the nanofiltration (NF) membrane structure for the simultaneous improvement in permeance and selectivity has attracted extensive attention. In this study, ultraviolet (UV) irradiation was integrated in situ into a typical interfacial polymerization (IP) process to modulate the IP reaction precisely and thus modify the microscopic architecture of NF membranes. UV irradiation was capable of activating trimesoyl chloride (TMC) and inducing photothermal effects. The optimized NF membranes presented thinner and rougher surfaces, as well as an increased negative charge and hydrophilicity. Compared with the control NF membrane (NFM-Con), the optimized NFM-UV40 achieved excellent performance, with 35.5 % greater water permeance and 186.6 % greater Cl − /SO 4 2− separation selectivity. Notably, the UV-assisted NF membranes had better anti-fouling properties than those of commercial NF270. This study proposes a novel strategy for the precise in situ regulation of NF membrane structure and performance, enabling the development of high-performance separation membranes for NF-based water desalination.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Yang Liu,Xiuying Zhu,Mengjie Li,Xiong-Fei Zhang,Zhongguo Wang
Transparent wood films have emerged as sustainable alternatives to petrochemical plastics; however, their practical performance is hindered by insufficient mechanical strength and poor ultraviolet (UV) shielding performance. In this study, we developed a transparent wood film through organic-inorganic interfacial hybridization. Chemical removal of lignin and hemicellulose yields a porous cellulose scaffold, which is infiltrated with a polyvinyl alcohol (PVA)-graphene oxide (GO) suspension. Enabled by the hydrogen-bonded network among PVA, GO, and cellulose, the optimized composite film exhibited a superb tensile strength of 281.3 MPa and toughness of 3.1 MJ/m 3 . The GO-PVA hybrid interface provides dual functionality of optical transparency (58.7 % at 550 nm) and high UV-shielding efficiency (75.4 % UVA and 91.9 % UVB blocking) through synergistic π-π* absorption and light scattering. Furthermore, the film demonstrated antibacterial activity against Staphylococcus aureus and Escherichia coli . Combined the biodegradability, mechanical robustness, and multi-functionality, such wood-derived film represents a sustainable alternative for advanced food packaging and UV-protective applications.
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Journal of Materials Chemistry C
·
2025
·
IF 5.1
Ge Gao,Li Chen,Xingyu Pan,Dingyiran Wu,Dingkang Xiong,Liuting Chen,Bingsuo Zou
All-inorganic lead halide perovskite quantum dots (QDs) have emerged as promising materials for photodetection owing to their exceptional optoelectronic properties. However, solution-processed CsPbBr3 QD films suffer from severe carrier recombination losses and inefficient charge transport. Herein, we address these challenges through rational design of Type-II CsPbBr3/SnS2 nanohybrid heterostructures, where SnS2 nanoparticles serve as electron transport pathways. Systematic characterization reveals that the interfacial energy band alignment enables fast charge separation while suppressing radiative recombination compared to pristine CsPbBr3 QDs. Based on these advantages of the CsPbBr3/SnS2 heterostructure, we demonstrate a self-powered UV photodetector exhibiting high sensitivity with a detectable threshold as low as 0.06 mW cm−2 at zero bias. The optimized device exhibits a high responsivity of 142.5 mA W−1, a remarkable specific detectivity of 1.13 × 1013 Jones, an ultrafast response time of 4 ms and a linear dynamic range of 84.4 dB. The device also exhibits an ultralow dark current in the order of 10−11 A, enabling a light-to-dark current ratio of up to 16 522. These parameters surpass those of most previously reported perovskite QD-based photodetectors. This work provides a viable strategy for engineering perovskite heterostructures toward high-performance optoelectronics, particularly for UV monitoring and industrial process control systems requiring zero-power operation.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Bingqing Fu,Yihua Xu,Jun Yang,Hongyan Li,Fangtao Xiong,Lizheng Sha,Huifang Zhao,Xiaohong Chen,Jing Li
To achieve high-value utilization of lignin, kraft lignin (KL) extracted from eucalyptus pulping black liquor was modified by demethylation using Lewis acids AlCl 3 (AL) and HBr (HL) and used to partially substitute of polypropylene glycol (PPG) to prepare lignin-based waterborne polyurethane (WPU) emulsion by reacting with isophorone diisocyanate (IPDI). The results of 1 H NMR spectra showed that the hydroxyl content of lignin were respectively 10.13 mmol/g and 8.31 mmol/g after demethylation with AlCl 3 and HBr, which were 73.2 % and 43.1 % higher than that of KL. When 20 wt% of PPG was replaced by AL and HL, the prepared ALWPU-20 % and HLWPU-20 % emulsions had good dispersion and storage stability, with an average particle size of 400 nm and a viscosity of 35.3 Pa·s and 24.5 Pa·s, respectively. Both ALWPU-20 % and HLWPU-20 % films had good mechanical strength, thermal stability and biodegradability, and their crosslinking density, tensile strength and natural degradation rate after 100 days’ landfilling were 19.1 mmol/cm 3 and 17.2 mmol/cm 3 , 10.9 MPa and 10.3 MPa, and 19.21 % and 21.21 %, respectively. Moreover, ALWPU-20 % and HLWPU-20 % films had excellent ultraviolet (UV) shielding performance and the UV light transmittance of them was nearly zero. Compared with HL, AL had higher reactivity and ALWPU-20 % emulsion and film had better comprehensive performance.
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Coatings
·
2025
·Vol. 15
·期 5
·505
·
IF 2.8
Qiuli Zhang,Yaning Yu,Jingjing Li,Chengxian Yin,Feng Tian,Jiahui Liu,Jun Zhou
To address the issue of metal corrosion in marine environments, we developed a nanofiller with corrosion resistance and UV absorption capabilities. This nanofiller is prepared using a coprecipitation hydrothermal method and consists of TTA intercalated into an LDH structure with an outer layer containing CeO2, forming a layered double hydroxide (LDH) sandwich structure nanocontainer. TTA can be successfully released in corrosive environments, and the filler exhibits excellent corrosion inhibition and interlayer ion exchange properties. Polarization curve analysis shows that the corrosion inhibition efficiency of MgAl-TTA LDH@CeO2reaches 89.87%. After immersion in a corrosion solution for 60 days, the EP/MgAl-TTA LDH@CeO2coating maintains a high impedance of 3.88 × 108Ω·cm2in the low-frequency region, which is 166 times that of the pure EP coating. Even after 240 h of UV aging, the impedance of the EP/MgAl-TTA LDH@CeO2coating remains high at 3.10 × 108Ω·cm2(20,000 times higher than the pure EP coating). This significantly enhances the coating’s anti-aging and corrosion resistance, providing a feasible method for creating new long-lasting corrosion-resistant coatings in challenging environments.
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SENSORS AND ACTUATORS B-CHEMICAL
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2025
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IF 7.7
Dandan Rong,Gang Meng,Longqing Mi,Meng Li,Ruofan Zhang,Xiaohua Ji,Tiantian Dai,Hongtao Li,Xiaodong Fang,Libing You,Zanhong Deng
Dimethyl sulfide (DMS) is one kind of volatile sulfur compounds (VSCs) possessing disagreeable odor, with a low olfactory threshold around 20 ppb. Highly sensitive detection of DMS at room temperature (RT) is critically needed for emerging application with low power consumption, but it remains a significant challenge owing to its low reactivity. Herein, UV photoactivated titanium dioxide (TiO 2 ) nanoparticles (NPs) have been employed for detecting DMS at RT. An eco-friendly ultrasonic crushing solution spray technique was developed to prepare TiO 2 based sensors. An ultrahigh response of 30–500 ppb DMS and a low experimental limit of detection ( R a / R g = 2.7@50 ppb) could be achieved at RT under UV light activation. This work opens a new avenue to achieve highly sensitive, energy-efficient sensors for trace VSCs detection at RT in ambient odor monitoring.
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ACS Applied Polymer Materials
·
2025
·
IF 4.7
Xianqiang Zeng,Chen Liu,Xue Wang,Peng He,Yan Cao,Huiquan Li,Liguo Wang
Photo adhesives are widely used in various industries due to their high adhesion strength, fast curing and ease of use. However, manufacturing photo adhesives with underwater adhesion is a significant challenge mainly because water molecules can dissolve or swell the adhesive during in situ coacervation, and the hydration layer on the surface of the substrate prevents molecular interactions between the adhesive and the substrate. Herein, an underwater UV-curable adhesive with high adhesion strength and ultrafast curing time is composed of bottlebrush polyethers (BBPs) and poly(acrylic acid) (PAA) complex (BBPs-PAA). The BBPs component not only removes the hydration layer and prevents water intrusion into the adhesive through hydrophobic effect but also enhances adhesion and cohesion strength through hydrogen bonding. The prepared UV-curable adhesives, BBPs-PAA, can be ultrafast cured (10 s) on the surface of the substrate under UV irradiation, exhibiting ultrahigh adhesion strength on glass substrates, both in the air (14.9 MPa) and underwater (13.2 MPa). In particular, the adhesion strength of BBPs-PAA on glass substrates remains above 6.5 MPa after 30 days of immersion in water, salt, acid, and alkali solution environments. This study outlines a viable strategy for developing an instant and strong underwater adhesive, showcasing its substantial potential for diverse applications in aqueous environments.
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Matter
·
2025
·
IF 17.5
Bohan Li,Yongsheng Sun,Yuzhen Wang,Jiance Jin,Kai Han,Yan Xu,Zhiguo Xia
Highly transparent and large-area scintillator film is highly desirable for next-generation X-ray imaging and detection. Herein, we develop a rapid and in situ synthesis strategy to fabricate polymer scintillator film composed of (C 14 H 15 P) 4 Cu 4 I 4 glassy cluster gel (M1-GCG). The large-area M1-GCG film of 20 × 12 cm was obtained by in situ UV photopolymerization within 30 s, showing ∼90% transmittance in the broad spectral region of 400–1,000 nm, in which Cu(I) iodide clusters coordinated by phosphine ligands are generated as a glassy form in the polymer network structure and uniformly distributed under supramolecular interactions, as the polymer monomer is polymerized and cross-linked under ultraviolet light. We develop a brand-new chemical synthesis route toward polymer-based composite scintillator film, and the M1-GCG film with high transparency and scintillation properties, as well as high-resolution X-ray imaging ability, shows extraordinary potential for large-area medical imaging and industrial non-destructive detection.
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WATER RESEARCH
·
2025
·
IF 12.4
Yan Cai,Xiaoci Li,Peizeng Yang,Jing Chen,Junhe Lu,Jean-Marc Chovelon,Yuefei Ji
As one of benzophenone-derived drugs, benzbromarone (BBM) has been widely used to reduce blood uric acid, treat gout, and gouty arthritis. Understanding the transformation and fate of BBM in natural and engineered systems is critical for its ecological risk assessment. In this study, we systematically investigated the photochemical behavior of BBM in aqueous solutions under laboratory UV 254 irradiation. UV-vis spectra show that an aqueous solution of BBM is capable of absorbing UV photons at 200 - 400 nm. Spectroscopic titration indicates that BBM with a p K a value of 4.83 ± 0.17 is present mainly as the phenolate form under circumneutral conditions. BBM undergoes rapid direct photolysis when exposed to UV 254 irradiation and the quantum yields were determined to be 0.0105 and 0.0196 mol E −1 for phenol and phenolate forms, respectively. The heavy atom effect of bromine and spin-orbit coupling effect of aromatic ketone make dibromophenol and carbonyl moieties the critical chromophores accounting for the high photoreactivity of BBM. Laser flash photolysis and electron paramagnetic resonance studies suggest that the photolysis of BBM is initiated by ultrafast photodebromination and Norrish I cleavage. The high yield of bromide determined by ion chromatograph highlights the importance of photodebromination. Due to the light screening effect of wastewater components, the photolysis of BBM in hospital wastewater is inhibited. Photo-induced modification of the dibromophenol moiety of BBM likely generates photoproducts showing toxicity to luminescent bacteria. Overall, our results reveal that photochemical reaction under UV irradiation plays an important role in the attenuation of BBM in engineered water.
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Jiadong Li,Pengyuan Xie,Lei Zhang,Wei Wang,Yingquan Wang,Yu Jia
The development of efficient photocatalysts for indoor air purification remains a significant challenge. In this study, oxygen-deficient indium oxide nanoflowers (In 2 O 3-x NFs) were synthesized via an acetic acid and P123-assisted template method followed by H 2 calcination. The as-prepared In 2 O 3-x NFs possess a hierarchical nanoflower-like morphology with a significantly enlarged specific surface area, which provides abundant active sites for enhanced adsorption of formaldehyde molecules. Moreover, the introduced oxygen defects effectively narrow the bandgap, extending the light absorption into the visible region, and serve as traps to promote the separation and migration of photogenerated charge carriers. As a result, the optimized In 2 O 3-x NFs exhibit remarkably improved photocatalytic activity for gaseous formaldehyde degradation under UV irradiation. After 2 h of illumination, the degradation efficiency achieved by In 2 O 3-x NFs is approximately 2 times and 4.5 times higher than those of pure In 2 O 3 NFs and In 2 O 3 nanoparticles (NPs), respectively. This work offers a feasible defect-engineering strategy for designing high-performance metal oxide photocatalysts toward volatile organic compound removal.
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OPTICAL MATERIALS
·
2025
·
IF 4.2
Jinjie Zheng,Honglie Shen,Yufang Li,Huanlun Tong,Jingzhe Zhang,Zhihong Xie
In this study, a novel fabrication method for a bilayer film consisting of the Bi 2 Mo 3 O 12 :Eu 3+ and CaF 2 was developed. Bi 2 Mo 3 O 12 :Eu 3+ film was prepared using the chemical solution method, eliminating the need for separate phosphor preparation. The excitation spectra of Bi 2 Mo 3 O 12 :Eu 3+ displayed a broad band within the range of 300 and 420 nm. Under ultraviolet (UV) excitation, the material emitted strong red luminescence, with a dominant peak around 615 nm, which coincides with the absorption range of silicon solar cells. Additionally, a CaF 2 anti-reflection layer was introduced to enhance optical transmittance. The average transmittance of the Bi 2 Mo 3 O 12 :Eu 3+ @CaF 2 bilayer film reached 92.3%, representing a 0.7% increase compared to the bare glass substrate (91.6%). As a proof-of-concept, applying Bi 2 Mo 3 O 12 :Eu 3+ @CaF 2 to this bilayer film on photovoltaic modules resulted in an absolute enhancement of 0.19% in power conversion efficiency.
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