JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
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IF 4.4
Congyang Zou,Jie Tian,Yujie Wang,Ruijie Liu,Minjie Yang
WO 3 /Cu 2 WS 4 heterojunction photocatalyst is fabricated by a solvothermal route. • WO 3 /Cu 2 WS 4 displays strong visible-light photocatalytic activity for gaseous styrene degradation. • Optimized composite delivers better degradation efficiency and reaction kinetics than pure components. • Z-scheme charge transfer mechanism is put forward to interpret the elevated photocatalytic activity. In this work, a Z -scheme heterojunction photocatalyst WO 3 /Cu 2 WS 4 was prepared by loading Cu 2 WS 4 particles on the surface of bulk WO 3 . Under simulated visible light irradiation, the catalyst exhibited excellent photocatalytic oxidation performance toward styrene (200 mg/m 3 ). The optimal WO 3 /CWS-20% composite achieved the highest photocatalytic oxidation efficiency for styrene, with a degradation rate of 97.2% and a corresponding rate constant of 0.03651 min −1 , which was 2.8 and 3.2 times higher than those of pure WO 3 and Cu 2 WS 4 , respectively. Moreover, the material possessed good stability, maintaining 83.4% of its degradation efficiency after four consecutive cycles. The electron transfer and catalytic mechanisms of the catalyst were further investigated via photoelectrochemical measurements. The results indicate that the constructed Z -scheme heterojunction can effectively separate photogenerated charge carriers and facilitate the generation of reactive species such as hydroxyl radicals (·OH) and superoxide anion radicals (·O 2 − ). This work offers a novel strategy for designing high-efficiency heterojunction photocatalysts for the degradation of VOCs under sunlight irradiation. Download: Download high-res image (80KB) Download: Download full-size image
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2026
·Vol. 37
·期 21
·1648
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IF 3.2
Shi Min,Sun Yangang,Li Hao,Zhang Yu,Wen Zhaoxia,Pan Luyao
The remediation of antibiotic-contaminated water relies critically on the rational design and development of high-efficiency photocatalysts capable of operating under visible light. This study aimed to develop calcium-doped BiOCl nanocomposites for visible-light photocatalysis. Samples with adjustable Ca 2+ concentrations were prepared via hydrothermal synthesis followed by calcination, and their effectiveness in decomposing CIP was systematically investigated. The experimental results show a 1.51 times enhancement in CIP degradation efficiency for the Ca-doped sample (BOCl/Ca-10) compared to pristine BOCl. Characterization results reveal that Ca 2+ doping induces beneficial adjustments in the electronic configuration and microstructure of BOCl, thereby optimizing its functional properties. The identification of •O 2 − as the primary reactive species was achieved through radical trapping experiments. Furthermore, calcium doping is established as an effective strategy for modifying BiOCl. As demonstrated by the high-performance BOCl/Ca-10 composite, this approach facilitates the design of efficient photocatalysts for the remediation of antibiotic pollutants in water.
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COLLOID AND POLYMER SCIENCE
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2025
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IF 2.3
Li Hui,Qu Jianbo
Graphene oxide was functionalized by dopamine to synthesize polydopamine-reduced graphene oxide (PDRGO). PDRGO was further applied as a template and reductant to reduce silver ion to form silver nanoparticles (PDRGO-Ag). Then, the PDRGO-Ag was incorporated into waterborne polyurethane (WPU) by in situ emulsification to fabricate the PDRGO-Ag embedded WPU nanocomposite films (WPU/PDRGO-Ag). Herein, the PDRGO-Ag was regarded as a photothermal agent that offers effective and controllable photothermal converters for bactericidal applications. Meanwhile, silver nanoparticles acted as an antibacterial agent that endow synergistically enhanced antibacterial properties to the PDRGO-Ag. The resulting film exhibited exceptional antibacterial performance against both E. coli and S. aureus . Moreover, the WPU/PDRGO-Ag films showed improved mechanical properties. The development of this light-induced functional WPU-based film opens a new pathway to antibacterial composite coatings. Graphical
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COMPOSITE INTERFACES
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2025
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IF 2.4
Yan Hong,Guorui Mou,Yu Zheng,Chong Wang,Guoyun Zhou,Jiujuan Li,Zesheng Wen,Yongqiang Xu,Jianhui Li,Zhikai Huang,Yang Cai,Wei He
The introduction of noble metal nanoparticles effectively improves the photocatalytic performance of TiO2 due to the retarded recombination time of the photo-generated electron-hole pairs as well as raised charge transfer rate at interfaces within the composites. In this study, spherical TiO2 particles were prepared by sol-gel reaction and converted into anatase phase by calcination treatment. Ag nanoparticles were deposited on the spherical TiO2, yielding an optoplasmonic core-satellite composite structure. The coverage of Ag nanoparticles on the TiO2 surface was tuned by altering the duration of electroless plating. Due to the enhanced interaction between metal nanoparticle and dielectric component, the photodegradation of organic dyes was promoted accordingly. It was found that with proper Ag deposition degree, the optoplasmonic particle demonstrates the improved photocatalytic performance under ultraviolet and visible excitation. This composite particle was further evaluated in the experiments of practical copper electroplating solution, in which the optoplasmonic particles exhibit promoted photocatalytic activity. This developed structure is therefore a powerful candidate for the low-cost removal of organic additives.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Shiyu Dong,Guohua Wang,Guoqiang Lu,Keqiang Wang,Ruifen Tang,Jun Nie,Xiaoqun Zhu
Hydrogels exhibiting lower or upper critical solution temperature (LCST/UCST) behavior undergo reversible phase transitions accompanied by volumetric shrinkage or optical switching, are widely used in smart windows, anti-counterfeiting, temperature-sensitive robots, and other fields. Nevertheless, their application is restricted by single-step thermal transitions inherent to isotropic polymer networks, which makes it impossible to accomplish several temperature transitions of hydrogels. Furthermore, compared to single-stimulus response, multiple responses present additional difficulties. To address these challenges, adjustable anisotropic Poly (hydroxypropyl acrylate-co-acryloyloxyethyl trimethyl ammonium chloride)/Poly ( N -isopropyl acrylamide) (HD/NIPAM) hydrogels are prepared by limited domain swelling method. These hydrogels achieve tunable transition temperatures (−1.07°C–36.04°C) and broad transition windows (9.4°C–25.3°C) by modulating NIPAM concentration and limited thickness. Remarkably, 1 HD 20 /N 15 hydrogels exhibit exceptional time and cycle stability during their reversible transparency shift (97% to 1.8%). This performance enables applications in gradient-selective smart windows and soft thermal indicators with spatially resolved signaling. Furthermore, through the transition of matrix hydrogel (poly(hydroxypropyl acrylate-co-acryloyloxyethyl trimethyl ammonium chloride) (HD) hydrogel to poly(hydroxypropyl acrylate-co-acryloxyethyl trimethyl ammonium dysprosium thiocyanate) (HDy) hydrogel), the transition from thermal single stimulus to thermal/light dual stimulus response was achieved due to the Dy element.
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Surfaces and Interfaces
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2025
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IF 6.3
Weijie Yuan,Kanglong Zhang,Minghui Zhu,Jiamin Huang,Xue-Yang Ji,Dafeng Zhang,Junchang Liu,Xipeng Pu
The misuse of tetracycline (TC) poses a significant threat to the natural environment, necessitating the development of efficient methods for its degradation. Heterojunction photocatalysts have emerged as a promising approach for the degradation of such pollutants. This work aims to construct a novel NiWO 4 /Mn 0.3 Cd 0.7 S (NWO/MCS) S-scheme heterojunction using solvothermal coupled with mechanical mixing methods for efficient photocatalytic degradation of TC. The optimized NWO/MCS composite exhibited an 82% removal rate within 40 minutes under visible light irradiation, which represents an 18.4-fold and 1.13-fold improvement compared with pristine NWO and MCS, respectively. Various analytical methods and DFT calculations were utilized to characterize the structure and photophysical properties as well as prove the electron flow of the heterojunction, respectively. This work provides evidence of efficient charge carrier transfer between NWO and MCS within the S-scheme heterojunction, which contributes to the enhanced photocatalytic activity. The rational structural configuration of the S-scheme heterojunction has been shown to improve both the reduction and oxidation capabilities, offering a potential pathway for developing photocatalysts with high antibiotic removal efficiency.
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JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2025
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IF 4.9
Zhaoxia Wen,Yangang Sun,Yu Zhang,Luyao Pan,Song Yao
Rational design of efficient visible-light-responsive photocatalysts is pivotal for antibiotic degradation in aquatic environments. In this work, calcium-doped BiOBr (BOB) nanocomposites with controlled doping ratios were synthesized via a hydrothermal-calcination method and evaluated for ciprofloxacin (CIP) degradation under visible light. Experimental results demonstrate that the BiOBr/Ca-3 (BOB/Ca-3) sample exhibits a 1.64 times enhancement in CIP degradation efficiency compared to pristine BOB. Characterization data revealed that Ca doping optimizes the electronic and structural properties of BOB. Radical trapping experiments confirmed that •O 2 − and h + serve as the dominant reactive species. Cycling tests demonstrated the structural stability and recyclability of BOB/Ca-3. This study demonstrates that Ca-doped BOB modification proves to be an effective strategy for developing high-performance photocatalysts toward antibiotic-contaminated wastewater remediation.
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Regenerative Biomaterials
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2025
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IF 8.1
Zou Weilong,Han Xiyuan,Dai Qiyuan,Lin Zequ,Li Qingtao,Li Zilin,Xu Xinrong,Chen Xinying,Gao Huichang,Cao Xiaodong
Natural bone is a naturally mineralized material with a non-homogeneous porous structure, which is difficult to construct using conventional manufacturing methods. Triply periodic minimal surfaces (TPMS) have emerged as an excellent solution in recent years for constructing porous artificial bone structures, characterized by smooth surfaces, highly interconnected porous structures, and mathematically controllable geometries. In this work, digital light processing (DLP) printing technology was used to construct a non-homogeneous TPMS structure with strontium-doping 13-93 bioactive glass (Sr@BG) prepared by fusion method. The heterogeneous scaffolds were obtained by integrating high-strength I-wrapped package (I) and high-permeability Gyroid (G) units behaving a sufficient compressive strength of 5.8±0.6 MPa, a porosity of ∼63% and a permeability of 0.97 × 10−8 m2, which matched the microstructural parameters of cancellous bone. Meanwhile, the biomimetic structure and Sr doping could cooperatively promote the adhesion, proliferation and differentiation of bone mesenchymal stem cells (BMSCs). In addition, the osteogenic ability of IG scaffolds was verified in rabbit’s femoral condylar defect. In general, heterogeneous IG scaffolds possess desirable bioactivity and mechanical property which meet the functional and structural requirements of bone regeneration
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PubMed
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Nature Photonics
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2026
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IF 32.9
Cao Wei,Tian Sen,Zhong Chao,Qiu Li,Zeng Pan,Chen Zhiming,Zhang Xiancheng,Liu Haitao,Liu Kaitao,Li Jian,Sun Tao,Ning Pingfan,Zhang Delin,Wang Wenhong,Jiang Yong,Cao An,Li Liang,Liu Dilong,Nie Zhihong,Yang Fan,Li Fushan,Li Yue
High pixel resolution is critical for next-generation quantum-dot light-emitting diode (QLED) display technologies. Although advances in quantum-dot patterning have improved resolution, the reduction in pixel size often degrades emission efficiency and pattern uniformity. Here we develop a nanoimprint strategy using nanohole-array moulds to fabricate nano-QLEDs via capillary action-induced self-assembly of quantum dots. We realize pixels as small as sub-100 nm with ultrahigh pixel resolution up to 169,333 pixels per inch over an electroluminescent area of 4 mm 2 . Benefiting from the closely packed light-emitting quantum-dot monolayers, our nano-QLEDs show minimal performance degradation upon reducing the pixel size. Notably, the smallest red, green and blue nano-QLEDs maintain average external quantum efficiencies of 17.0%, 10.5% and 5.7%, respectively. We also demonstrate fabrication on flexible substrates as well as an active-matrix display by imprinting micro-QLEDs on a thin-film-transistor backplane, showing images and videos with a resolution of 100 pixels × 180 pixels. This work provides a powerful method for fabricating ultrahigh-resolution nano-QLED arrays with high external quantum efficiency for next-generation displays.
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WATER SCIENCE AND TECHNOLOGY
·
2023
·Vol. 88
·期 1
·62-74
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IF 2.7
Yang Zhiquan,He Shan,Liu Wanhui,Zou Baosheng,Liao Wenning,Wang Yin,Wang Caiyun,Li Shuai,Niu Xiaojun
View large Download slide View large Download slide Close modal Efficient degradation of uranium(VI) (U(VI)) in wastewater is an urgent problem because of the chemical toxicity and radiotoxicity. In this study, the Ag x –SnS 2 photocatalysts were compounded by a simple hydrothermal method, effectively removing U(VI) under visible light in water. Compared with SnS 2 , the results indicated that Ag x –SnS 2 would decrease the crystallinity without destroying the crystal structure. Moreover, it has excellent photocatalytic performance on the degradation rate of U(VI). Ag 0.5 –SnS 2 exhibited a prominent photocatalytic reduction efficiency of UO 2 2+ of about 86.4% under optical light for 75 min. This was attributed to Ag-doped catalysts, which can narrow the band gap and enhance absorption in visible light. Meanwhile, the doping of Ag promoted the separation of photoinduced carriers, so that more photogenerated charges participated in the photocatalytic reaction. The stability and reusability were verified by the cycle test and the potential photocatalytic mechanism was analyzed based on the experiment. Ag x –SnS 2 material was prepared by a one-step hydrothermal method. Ag-doped SnS 2 has excellent optical adsorption capacity and a narrow band gap. Ag x –SnS 2 showed good performance in the photocatalytic reduction of UO 2 2+ . The mechanism of photocatalytic reduction of U(VI) by Ag x –SnS 2 was proposed.
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Journal of Materials Chemistry A
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2026
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IF 9.5
Junzhou Men,Zeyu Wang,Chen Luo,Ai Zhang,Hui Xian,Tao Jiang,Yating Wang
To address the urgent demand for efficient solar-to-hydrogen conversion, a novel Cu-doped 3D ordered macroporous (3DOM) ZIF-8 photocatalyst was fabricated via polystyrene sphere templating coupled with a dual-solvent method. Systematic characterization confirmed the preservation of the ZIF-8 crystalline structure after ∼2 at% Cu2+ incorporation. The 3DOM framework amplified light absorption via slow-light effects, while Cu2+ doping narrowed the band gap and further intensified the slow-light phenomenon. The optimized Cu-3D-ZIF-325 exhibited a photocatalytic hydrogen evolution rate of 2233.2 µmol g−1 h−1, which is 29 times higher than that of pristine ZIF-8. This performance enhancement originated from synergistic mechanisms: EIS measurements revealed that Cu2+ sites improved charge separation, and the optimized band structure facilitated carrier transport; DFT calculations further verified that Cu2+ optimized the adsorption/dissociation of water and elevated the conduction band potential, strengthening the reductive driving force for H2 production. This work establishes a viable dual-modification strategy for high-efficiency MOF-based photocatalysts.
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WATER SCIENCE AND TECHNOLOGY
·
2020
·Vol. 80
·期 11
·2206-2217
·
IF 1.638
Li Dan,Liu Heng,Niu Chaoqun,Yuan Jiren,Xu Feigao
It was found that mesoporous graphite carbon nitride (mpg-C 3 N 4 ) prepared using melamine as the precursor and ammonium chloride as the bubble template, has good photocatalytic activity under visible light irradiation. In order to improve the photocatalytic performance of mpg-C 3 N 4 , it was combined with metal-organic framework ZIF-8. Taking tetracycline hydrochloride (TC) solution as a model pollutant, the photocatalytic activity of composites was studied to select the optimal composite ratio and pH value. The initial concentration of hydrogen peroxide and active oxidation species were also investigated. The results showed that when the loading of ZIF-8 was 40 wt%, the removal efficiency was the best and 74.8% of TC could be removed. The degradation efficiency of TC was negatively affected under extreme pH conditions, but the composite photocatalyst mpg-C 3 N 4 -ZIF-8 had a relatively higher degradation efficiency on TC at mild pH values (4–8). The removal efficiency was the best at pH 8, and 75.1% of TC could be removed; the adsorption capacity was 430.7 mg·g −1 and the photodegradation capacity was 548.6 mg·g −1 . The order of active species affecting the photocatalytic degradation of TC by mpg-C 3 N 4 -ZIF-8 was hole > superoxide radical > hydroxyl radical.
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