CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jianxing Feng,Zhenqing Guo,Runli Li,Chaoqun Zhang,Ting Du,Xiang Li,Xuewei Yang,Junchen Zhuo,Yanmin Liang,Yaru Han,Jianlong Wang,Shuo Shi,Wentao Zhang
Recent advances in functionalized micro-nanostructures have enlightened promising non-thermal-dependent antibacterial strategies with broad applications in preventing agrofood spoilage, clinical infections, and environmental pollution caused by pathogens. These advances highlight the need for precise design of efficient and multi-mode bactericides. Herein, photosensitive vitamin B 2 (VB 2 ) was exploited to functionalize semiconductors with limited visible-light response and intrinsic antibacterial activity, while ZnO served as a paradigm for the fabrication of VB 2 -functionalized zinc oxide (VB 2 -ZnO) with persistent antibacterial effects. The enhanced visible photocatalytic activity and the released Zn 2+ in VB 2 -ZnO contribute to potent antibacterial and anti-biofilm effects by disrupting bacterial structures and inducing oxidative stress. Furthermore, the successful fabrication of composite films incorporating VB 2 -ZnO and natural locust bean gum (LBG) exhibited improved physicochemical properties and persistent antibacterial effects, resulting in the shelf-life extension of perishable berries. This work pioneers a novel approach to functionalizing semiconductor photocatalysts with VB 2 photosensitizer, offering novel solutions for ensuring agrofood safety through multi-mechanism antibacterial materials.
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高影响因子
Small
·
2025
·
IF 12.1
Chen Yang,Zhiguang Guo
Superhydrophobic surfaces are susceptible to structural deformation and damage during use, which significantly impacts their long-term stability and performance in anti-/de-icing applications. To address this challenge, a biomimetic superhydrophobic polyurethane film inspired by Xanthium strumarium (PBXS) is proposed. This film not only delivers efficient anti-/de-icing performance but also demonstrates exceptional long-term durability. Even when the surface structure undergoes deformation or complete fracture, it can quickly self-heal under near-infrared light, restoring its original properties. The results show that, due to the superhydrophobic micron spine array and photothermal effect, PBXS can delay droplet freezing at low temperatures (−10 °C, 2052 s) and enable rapid de-icing (1 sun, 187 s). Moreover, by incorporating the shape-memory properties of thermoplastic polyurethane and self-healing capability, PBXS effectively addresses issues related to surface deformation (after ten deformation-healing cycles, PBXS maintains a water contact angle of 157 ± 1° and a rolling angle of 15.4 ± 1°) and material rupture (after ten fracture-healing cycles, PBXS retains a water contact angle of 152 ± 1° and a rolling angle of 16.1 ± 1°). This innovative approach enhances the long-term performance of anti-/de-icing films and shows significant potential for applications in road transportation, power transmission lines, and other anti-/de-icing fields.
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DOI
PubMed
高影响因子
Advanced Optical Materials
·
2025
·Vol. 13
·期 8
·2402764
·
IF 7.2
Jiaxiang Wang,Zunxian Yang,Ye Chen,Hui Zhang,Yue Chen,Yuting Bai,Xudong Jiang,Benfang Liu,Jiajie Hong,Zhezhou Fang,Jinzhu Gao,Zheyu Zhou,Runsen Yu,Xuanyao Song,Zhiyu Yuan,Tailiang Guo,Fushan Li,Yongyi Chen,Zhenzhen Weng
Perovskite quantum dots (PQDs) have emerged as promising candidates for next-generation high-quality lighting and high-definition displays due to their outstanding luminescence properties, characterized by a narrow emission spectrum and tunable color. However, during the purification process involving polar solvents, ligand detachment from the quantum dot surface often induces crystal defects, thereby compromising their long-term stability. Herein, the effects of various post-processing strategies on PQD performance are systematically explored, including the use of oleic acid (OA), didodecyldimethylammonium bromide (DDAB), and their combinations, alongside OA-assisted synthesis. Furthermore, a synergistic post-processing strategy based on DDAB-NaMeS (sodium methanesulfonate) is proposed to elucidate the mechanism of ligand reconstruction on the quantum dot surface during purification. The resulting PQDs demonstrated excellent stability over a storage period exceeding one month, and the corresponding Quantum Dots Light-Emitting Diodes (QLEDs) achieved a peak external quantum efficiency (EQE) of 9.82%, representing a 1.91-fold improvement over standard devices. These QLEDs exhibited exceptional optoelectronic performance, underscoring their potential for application in other sulfonic acid ligands and perovskite-based materials.
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高影响因子
Materials Today Bio
·
2025
·
IF 10.2
Shaobo Zhai,Jiaqian You,Zheng Yang,Yang Liu,Tianming He,Yuchuan Wu,Xuyan Wei,Mucong Li,Xiaolu Shi,Fengxiang Gao,Shunli Chu
Wound infection is a serious clinical challenge, often accompanied by persistent inflammatory response and the threat of increased bacterial resistance, there is an urgent requirement to develop a wound dressing with potent antimicrobial as well as immunomodulatory effects. In this study, we developed a multifunctional wound dressing to promote healing of infected wounds by doping puerarin-loaded mesoporous polydopamine nanoparticles into a carboxymethyl chitosan/sodium alginate oxide-based hydrogel. The hydrogel has good injectability, adhesion, and self-healing capabilities, and can be well matched to irregular wounds and against external injuries. The loaded PUE is rapidly released from the hydrogel in response to near-infrared (NIR) laser irradiation, which has a controlled release property. In addition, under NIR laser irradiation, the hydrogel with good photothermal properties exerted good antimicrobial properties through localized high temperature, and exhibited good antioxidant, immune microenvironment modulation, and pro-angiogenic effects through accelerated released PUE. In the E. coli-infected full-thickness skin wounds healing experiments, the hydrogel can effectively kill bacteria, regulate the immune microenvironment, promote collagen deposition and angiogenesis, and significantly accelerate the wound healing, showing promising applications.
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PubMed
高影响因子
ENERGY & FUELS
·
2023
·
IF 5.3
Yanfei Zhao,Qi Wang,Congrong Lu,Kuankuan Ren,Shiyan Liu,Chunhe Li,Wei-Dong Dou
The development of photocatalysts with high charge separation efficiency and visible-light-harvesting capacity is still a great challenge. In this work, we report a simple hydrothermal treatment to decorate the CdS nanowires (NWs) with co-catalyst Cu2MoS4 nanosheets (NSs) for photocatalytic H2 evolution reaction (HER). Especially when the molar ratio of Cu2MoS4 to CdS is 3%, the Cu2MoS4/CdS shows excellent visible light-driven H2 evolution activity (1967.83 μmol g–1 h–1), which is 18.8 times higher than that of pure CdS. Structural characterizations demonstrate a well-designed structure of the Cu2MoS4/CdS, in which Cu2MoS4 NSs are tightly attached onto the CdS NWs to form a heterojunction. The optical property reveals that the 3%-Cu2MoS4/CdS nanocomposite displayed distinguished visible-light absorption capacity. Combined with the data analysis of the photoluminescence spectra, photocurrents, and electrochemical impedance spectra, it can be proved that there is effective separation of photogenerated electron–hole pairs in 3%-Cu2MoS4/CdS nanocomposite. All these factors synergistically boost the photocatalytic H2 evolution performance of the Cu2MoS4/CdS, providing a new concept for the rational design of highly efficient visible-light-driven sulfide photocatalysts.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Qianlong Yang,Haifeng Zhu,Xiaomeng Ji,Yaping Zhang,Lianqing Yu
Exploration visible-light-driven photocatalyst is imperative to resolve energy crisis. Hollow structure photocatalyst has attracted increasing attention due to its large surface area can greatly facilitate light harvesting and enrich the reaction sites. Based on this, a hollow core-shelled composite photocatalyst of Zn 0.5 Cd 0.5 S and copper phthalocyanine (CuPc) was synthesized by facile solution method. Under visible-light irradiation (λ > 400 nm), the as-prepared CuPc/Zn 0.5 Cd 0.5 S photocatalyst exhibits eminent hydrogen evolution up to 29.16 mmol/g·h without noble metal co-catalyst modification, which was 3.5 times higher than pristine hollow Zn 0.5 Cd 0.5 S nanoflower (8.42 mmol/g·h). Meanwhile, the lifetime of photo-carriers prolongs from 0.765 s (Zn 0.5 Cd 0.5 S) to 1.05 s (CuPc/Zn 0.5 Cd 0.5 S-4%) based on open-circuit potential calculation, and the apparent quantum yield reaches 6.95% at 400 nm wavelength. In addition, the photocorrosion of Zn 0.5 Cd 0.5 S phase dissolution is greatly restrained, ascribing to p-type CuPc with merits of fast holes transfer and high chemical stability. These results indicate that CuPc/Zn 0.5 Cd 0.5 S heterojunction possesses excellent visible-light absorption capacity and superior photocatalytic hydrogen evolution property. This study presents new insights for designing core-shelled hollow photocatalyst based on organic-inorganic nanoarchitectonics, which displays countless potential for future green energy harvesting.
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高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Xiao-Xue Liu,Guang-Hui Chen,Jun Tao,Jian Zhang,Lei Zhang
Exploring new structural types of polyoxotitanium clusters (PTCs), especially those containing classical polyoxometalates structures, has always been the focus of research in the field of metal-oxo clusters. In this work, we present the synthesis and characterization of three prismatic PTCs: namely, Ti8(μ2-O)3(μ4-O)2(OnPr)6(HOnPr)2(L1)8 (PTC-237; H2L1 = 3,5-di-tert-butylcatechol), Ti12(μ2-O)6(μ3-O)8(OnPr)6(L2)12(L3)2 (PTC-238; HL2 = 1-adamantanecarboxylic acid, HL3 = 2-picolinic acid), and [Ti18(μ2-O)4(μ3-O)16(μ5-O)2(OiPr)18(L3)8](L3)2 (PTC-239). Single-crystal X-ray diffraction analyses indicate that the construction of these prismatic PTCs is based on a stepwise interlayer assembly of {Ti3} and {Ti4} substructures. The diameters of their core skeletons are in the range between 0.9 and 1.3 nm. In particular, lacunary Linqvist-like {Ti4} and {Ti5} building units are found to exist in the structures of PTC-237 and PTC-239. According to the solid-state UV–vis diffuse reflectance measurements, the absorption band of 3,5-di-tert-butylcatecholate-functionalized PTC-237 shifts toward the visible-light region, giving a smaller optical band gap of 1.56 eV in comparison to PTC-238 (3.36 eV) and PTC-239 (3.25 eV).
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高影响因子
Catalysts
·
2021
·Vol. 12
·期 1
·22
·
IF 4.146
Jingfei Luan,Zhijie Wei,Bowen Niu,Guangmin Yang,Cisheng Huang,Bingbing Ma,Wenlu Liu
A new type of Gd2BiTaO7nanocatalyst (GBT) was synthesized by a high-temperature solid-phase method, and a heterojunction photocatalyst, which was composed of GBT and silver phosphate (AP), was prepared by the facile in-situ precipitation method for the first time. The photocatalytic property of GBT or the Ag3PO4/Gd2BiTaO7heterojunction photocatalyst (AGHP) was reported. The structural properties of GBT and AGHP were characterized by an X-ray diffractometer, scanning electron microscope–X-ray energy dispersive spectra, an X-ray photoelectron spectrograph, a synchrotron-based ultraviolet photoelectron spectroscope, a Fourier transform infrared spectrometer, an UV-Vis diffuse reflectance spectrophotometer and an electron paramagnetic resonance spectrometer. The results displayed that GBT was well crystallized with a stable cubic crystal system and space groupFd3m. The lattice parameter or band gap energy of GBT was found to be a = 10.740051 Å or 2.35 eV, respectively. After visible light irradiation of 30 min, the removal rate of bisphenol A (BPA) reached 99.52%, 95.53% or 37.00% with AGHP as the photocatalyst, with Ag3PO4and potassium persulfate (AP-PS) as photocatalysts or with N-doped TiO2(NT) as a photocatalyst, respectively. According to the experimental data, it could be found that the removal rate of BPA with AGHP as a photocatalyst was 2.69 times higher than that with NT as a photocatalyst. AGHP showed higher photocatalytic activity for photocatalytic degradation of BPA under visible light irradiation compared with GBT or AP-PS or NT. The removal rate of total organic carbon (TOC) was 96.21%, 88.10% or 30.55% with AGHP as a photocatalyst, with AP-PS as photocatalysts or with NT as a photocatalyst after visible light irradiation of 30 min. The above results indicated that AGHP possessed the maximal mineralization percentage ratio during the process of degrading BPA compared with GBT or AP-PS or NT. The results indicated that the main oxidation radical was•OH during the process of degrading BPA. The photocatalytic degradation of BPA with AGHP as a photocatalyst conformed to the first-order reaction kinetics. This study provided inspiration for obtaining visible light-responsive heterojunction photocatalysts with high catalytic activity and efficient removal technologies for organic pollutants and toxic pollutants, and as a result, the potential practical applications of visible light-responsive heterojunction photocatalysts were widened. The subsequent research of thin-film plating of the heterojunction catalysts and the construction of complete photoluminescent thin-film catalytic reaction systems, which utilized visible light irradiation, could provide new technologies and perspectives for the pharmaceutical wastewater treatment industry.Keywords:Gd2BiTaO7;Ag3PO4/Gd2BiTaO7heterojunction;potassium persulfate;bisphenol A;photocatalytic degradation;visible light irradiation;N-doped TiO2
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高影响因子
ORGANIC ELECTRONICS
·
2022
·
IF 3.868
Fang Yuan,Feifei Fu,Chunrong Zhu,Xiaoyun Liu,Chenxing Liu,Jinfei Dai,Hua Dong,Bo Jiao,Fanghui Zhang,Zhaoxin Wu
As a star material, to date, hybrid perovskites with green and red emission show high photoluminescence quantum yields , and the external quantum efficiency (EQE) of perovskite light-emitting diodes (PeLEDs) has exceeded 20%. However, due to the poor film quality and large energy level mismatch, the performance of blue PeLEDs still lags far behind. Herein, a π-conjugated tetraphenylethylene (TPE) doping strategy is demonstrated to improve both the efficiency and stability of sky-blue PeLEDs. With proper TPE doping, the defects are passivated and the energy levels of multi-cation perovskite are elevated, resulting in a smooth and dense film with high PLQY (∼27.8%). The champion PeLED shows a brightness of 12,963 cd/cm 2 at 484 nm and maximum EQE of 6.97%. Moreover, after TPE doping, the operational stability of the PeLED increases from 290 s to 960 s under continuous working condition. The π-conjugated molecule doping strategy could open up a new avenue for the design of high-performing blue PeLEDs.
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2022
·Vol. 30
·期 11
·32095-32107
·
IF 5.19
Huang Hua,Tao Xin,Niu Zhirui,Qin Xiaoqian,Ren Jialu,Shan Baoqin,Liu Yu,Ren Jingyu
Visible-light-driven magnetic heterojunction as a promising photocatalysts has received much attention in environmental remediation. In this work, novel Z-scheme heterojunction MnZnFe 2 O 4 @Ag 3 PO 4 (MZFO@APO) magnetic photocatalysts with excellent visible-light-driven photocatalytic activity are successfully constructed and characterized. The photocatalytic activity for phenol degradation is measured, and photodegradation mechanism is investigated with EPR, radical trapping experiments, and LC–MS. It turns out that the heterojunction introduced MZFO exhibits good adsorption effect on visible light and the direct Z-scheme bandgap alignment of MZFO and APO significantly improves charge separation and electron transfer, outperforming that of pure APO. MZFO@APO-40% with 40% APO content shows the rapid photodegradation performance, obtaining a 100% removal efficiency of phenol (25 mg L −1 ) after 12-min visible light irradiation, and its kinetic constants are approximately 25.3 and 4.9 times higher than that of P25 TiO 2 and pure APO, respectively. Especially, MZFO@APO-40% also possesses a high magnetic separation property and can be efficiently reused for 5 cycles. Additionally, EPR and radical trapping experiments confirm that h + , O 2 − , and 1 O 2 are the main active species in the photocatalytic process. Hydroquinone and small molecular organic acids such as maleic acid and oxalic acid are detected by LC–MS, which further indicates that the pathway of phenol degradation involves hydroxylation, open-ring reactions, and mineralization reactions. The novel addition of MZFO in photocatalyst construction has the potential to promote its application in environmental remediation.
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高影响因子
Journal of the American Chemical Society
·
2022
·
IF 16.383
Lei Xie,Miao Yan,Tianyi Liu,Ke Gong,Xin Luo,Beilei Qiu,Jie Zeng,Qirui Liang,Shan Zhou,Yanjun He,Wei Zhang,Yilan Jiang,Yi Yu,Jinyao Tang,Kang Liang,Dongyuan Zhao,Biao Kong
The rational design and controllable synthesis of hollow nanoparticles with both a mesoporous shell and an asymmetric architecture are crucially desired yet still significant challenges. In this work, a kinetics-controlled interfacial super-assembly strategy is developed, which is capable of preparing asymmetric porous and hollow carbon (APHC) nanoparticles through the precise regulation of polymerization and assembly rates of two kinds of precursors. In this method, Janus resin and silica hybrid (RSH) nanoparticles are first fabricated through the kinetics-controlled competitive nucleation and assembly of two precursors. Specifically, silica nanoparticles are initially formed, and the resin nanoparticles are subsequently formed on one side of the silica nanoparticles, followed by the co-assembly of silica and resin on the other side of the silica nanoparticles. The APHC nanoparticles are finally obtained via high-temperature carbonization of RSH nanoparticles and elimination of silica. The erratic asymmetrical, hierarchical porous and hollow structure and excellent photothermal performance under 980 nm near-infrared (NIR) light endow the APHC nanoparticles with the ability to serve as fuel-free nanomotors with NIR-light-driven propulsion. Upon illumination by NIR light, the photothermal effect of the APHC shell causes both self-thermophoresis and jet driving forces, which propel the APHC nanomotor. Furthermore, with the assistance of phase change materials, such APHC nanoparticles can be employed as smart vehicles that can achieve on-demand release of drugs with a 980 nm NIR laser. As a proof of concept, we apply this APHC-based therapeutic system in cancer treatment, which shows improved anticancer performance due to the synergy of photothermal therapy and chemotherapy. In brief, this kinetics-controlled approach may put forward new insight into the design and synthesis of functional materials with unique structures, properties, and applications by adjusting the assembly rates of multiple precursors in a reaction system.
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高影响因子
ACS Applied Electronic Materials
·
2023
·
IF 4.7
Zhiyong Lei,Min Wang,Xiao-Dong Zhang,Kun Cao,Zhaojie Wang,Yanwei Wen,Rong Chen
High-performance blue perovskite quantum dots (PQDs) are of key importance for electroluminescent light-emitting diodes (LEDs) toward full color display in the future. Here, mixed halogen PQDs CsPb(Brx/Cl1–x)3 with a tunable emission wavelength was obtained through a strategy of ligand-assisted anion exchange assisted by didodecydimethyammonium chloride (DDAC) ligand. Surface Br– vacancies of the PQD are passivated by the halogen atoms in the anchored DDAC ligand, enabling a high efficiency emission of blue light from the PQD. Stable anchoring of the ligand also improves the robustness of the PQD during its purification in weak polar solvents. Well-controlled chlorine stoichiometry of the PQD also allows fine-tuning of its photoluminescence and electroluminescence spectra in the range of 424–514 nm and 453–500 nm. The external quantum efficiency of the fabricated PQDs LED device reaches 10.1% at 495 nm, 6.5% at 484 nm, and 5.1% at 470 nm (NTSC pure blue) under a constant current test. Our work provides a facile method without additional purification or ligand separation to achieve highly efficient blue PQDs with a tunable emission wavelength, promoting the advance of blue PQDs LED.
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高影响因子
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