ACS Catalysis
·
2026
·
IF 13.6
Shibin Zhang,Xu Sun,Fenghuan Zhao,Zhipeng Xu,Hongyu Zhao,Shikang Zhang,Bohua Dong,Junjie Qin,Lixin Cao,Chenghui Xia
Efficient photocatalytic H2 evolution in natural seawater is challenged by sluggish interfacial electron extraction, severe carrier recombination, and deteriorated surface reaction kinetics in saline media. Here, we construct a CdS−NiCoSx Schottky heterojunction by integrating snowflake-like CdS with an amorphous hollow NiCoSx cocatalyst, where Ni incorporation simultaneously modulates the spin-related electronic structure of the cocatalyst and the interfacial Schottky energetics. Under visible-light irradiation (λ > 420 nm) in the presence of sacrificial reagents, the optimized photocatalyst delivers an H2 evolution rate of 19.89 mmol g−1 h−1 in natural seawater and 29.44 mmol g−1 h−1 in pure water, outperforming pristine CdS by 8.23-fold and an optimized CdS−Pt benchmark by 2.51-fold under identical conditions while retaining 92% of its initial activity after 16 h in natural seawater. Spectroscopic, photoelectrochemical, magnetic, and theoretical analyses collectively indicate that Ni incorporation increases the work function of the cocatalyst, strengthens band bending at the CdS−cocatalyst interface, and enhances the spin asymmetry of electronic states near the Fermi level. These changes facilitate interfacial electron extraction and suppress charge recombination. In parallel, Ni incorporation improves H2O adsorption and moderates H* binding at Co-centered sites, thereby accelerating the intrinsic kinetics of hydrogen evolution. This work identifies Ni incorporation as an effective means of coupling spin-state modulation with Schottky junction engineering in sulfide cocatalysts and provides a more rigorous framework for designing photocatalysts for sacrificial H2 evolution in natural seawater.
✓ 已验证
DOI
高影响因子
Food Bioscience
·
2026
·
IF 6.2
Hongrui Guo,Rui Du,Zijing Dai,Zhidi Xu,Yanqiu Zhu,Xianxiang Wang
Escherichia coli ( E. coli )-induced diarrhea remains a major health challenge in yaks, leading to substantial economic losses in plateau livestock production. Meanwhile, the widespread use of antibiotics has accelerated the emergence of antimicrobial resistance, underscoring the urgent need for green and sustainable antibacterial alternatives. In this study, copper-doped Coptidis Rhizoma -derived carbon dots (Cu-CR-CDs) were successfully synthesized and systematically evaluated for their antibacterial, antioxidant, and intestinal barrier protective effects both in vitro and in vivo . Cu-CR-CDs exhibited a uniform spherical morphology with an average diameter of 3.48 nm, and copper incorporation markedly enhanced its free radical scavenging capacity and conferred with multiple enzyme-like activities, including peroxidase-, superoxide dismutase-, and glutathione peroxidase-like activities. Compared with CR-CDs, Cu-CR-CDs demonstrated significantly enhanced antibacterial activity against E. coli , primarily by disruption of bacterial membrane integrity, increasing permeability, inducing leakage of intracellular biomolecules, inhibiting biofilm formation, and promoting intracellular reactive oxygen species (ROS) generation. In vitro experiments showed that Cu-CR-CDs effectively protected RAW264.7 macrophages and Caco-2 epithelial cells from H 2 O 2 -induced oxidative stress and lipopolysaccharide-induced inflammatory injury through scavenging intracellular ROS, suppressing pro-inflammatory cytokine production, and restoring tight junction protein expression. In vivo , oral administration of Cu-CR-CDs markedly alleviated E. coli –induced diarrhea in mice, reduced intestinal mucosal damage, restored villus structure, mitigated epithelial barrier function, and attenuated systemic inflammation. Moreover, Cu-CR-CDs reshaped gut microbiota composition by decreasing the relative abundance of harmful bacteria (e.g., Proteobacteria, Deferribacteres, and Desulfovibrio ) while increasing beneficial taxa such as Muribaculum, Prevotellaceae, and Akkermansia . Collectively, these results demonstrate that Cu-CR-CDs, as a multifunctional nanozyme with superior performance over CR-CDs, exhibiting potent antibacterial and therapeutic effects against enteric infections, thereby highlighting their potential as a promising nanotherapeutic strategy for the treatment of bacterial diarrhea.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2026
·
IF 4.4
Mengchao Feng,Yuchang Wang,Xuewei Lang,Feng Wei,Huayan Si,Jianbin Zhang
This work reports the synthesis of a novel ( α / β- CdS)/Ce(OH)CO 3 composite featuring both heterojunction and heterogeneous junction structures via a simple injection titration-stirring method. The as-prepared composite exhibited excellent visible-light-driven photocatalytic activity for the degradation of high-concentration oxytetracycline (OTC) solution. Under optimal conditions determined by single-factor and response surface analyses, 0.0300 g of the composite achieved a 75.26% degradation efficiency for 50 mL of 160 mg/L OTC solution within 120 min of visible light irradiation. Notably, the composite demonstrated remarkable stability, retaining 62.39% of its initial activity after five cycles, and showed enhanced performance under real sunlight for 120 min, with a degradation rate of 78.50%. The improved photocatalytic performance is attributed to the uniform dispersion of CdS nanoparticles with abundant sulfur vacancies, which increase light absorption and facilitate charge carrier separation. Furthermore, the formation of direct Z -scheme heterojunctions and heterogeneous junctions between CdS and Ce(OH)CO 3 promotes efficient separation and transport of photogenerated carriers, thereby enhancing both photocatalytic activity and material stability.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xi Zhou,Yibing Xie,Lu Wang,Langlang Wang,Xiang Li,Ping Ning,Xueqian Wang
Graphene has recently emerged as a nano-functional material with great potential in the field of photocatalysts. Doping graphene quantum dots (GQDs) into CdS by a simple hydrothermal method led to a unique hexagonal CdS prism structure that assembled into nanospheres, simultaneously inducing intergranular Z -Scheme heterojunctions of the (001) and (100) plane families in CdS. As a result, the CdS-GQDs composite exhibited excellent removal efficiencies for gaseous mercury (Hg 0 ), exceeding 95% under visible light and 90% over photocatalytic cycles. Experimental and optical characterization results indicated that the photoresponse of the composite photocatalyst was broadened due to the doped GQDs. Furthermore, density functional theory calculations revealed that the formation of a Z -scheme heterojunction between the two crystal planes of CdS generated an internal electric field in CdS, resulting in a novel carrier transfer channel. Through GQD doping, this work successfully addressed the occurrence of serious photocorrosion in CdS, providing a novel composite dedicated to the efficient removal of Hg 0 from flue gas under visible light.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 7
·1-10
·
IF 5.3
Chen Yunhai,Zhu Xuecheng,Liu Huilin,Sun Baoguo
Thiram, a fungicide used to protect fruits and vegetables from fungal diseases, poses severe health risks due to its residues, so rapid and reliable detection methods are required. Herein, we developed a dual signal sensor based on copper-doped room temperature phosphorescence (RTP) carbon dots (CDs) embedded in a boric acid matrix (Cu-CDs@BA) for detecting thiram in fruits and vegetables. The rigid B 2 O 3 matrix, formed through high-temperature oxidation of boric acid, suppresses non-radiative transitions and oxygen quenching in the carbon dots, stabilizing RTP and enabling simultaneous fluorescence and phosphorescence emissions. Copper ions within the Cu-CDs@BA acted as recognition sites by forming a Cu 2+ -thiram complex. The dual signal quenching mechanism involved photoinduced electron transfer (PET) and inner filter effect (IFE), which concurrently quenched fluorescence and phosphorescence. This dual signal output established an intrinsic self-calibration mechanism, significantly enhancing detection sensitivity by compensating for environmental changes. The sensor exhibits exceptional selectivity for thiram, rapid response (< 5 min), and simplified operation by eliminating the need for exogenous Cu 2+ supplementation. The spiked recovery experiments in real food matrices (banana, carrot) verified the practicality and reliability of the method. This work provided a novel strategy for multi-modal rapid detection of pesticide residues, addressing critical needs in food safety and environmental monitoring. Graphical
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Molecular Catalysis
·
2026
·
IF 4.3
Pengfei Zhu,Longshuai Sun,Maoying Wang,Guanyu Feng,Youyou Ma,Chuanyi Wang,Prasert Reubroycharoen
Photocatalytic CO 2 reduction has been widely recognized as an exceptionally promising technique for converting carbon dioxide into high-value-added chemicals. Metal-organic frameworks (MOFs) have emerged as promising photocatalysts for visible-light-driven CO 2 reduction owing to their unique structural advantages, but the achieved efficiency is still not satisfying. Herein, we successfully constructed CdS/UiO-66(Ce) Z-Scheme heterojunction photocatalysts by in situ growth of CdS nanoparticles on an octahedral UiO-66(Ce) substrate. The morphology, physicochemical properties, and photoelectric characteristics of the prepared samples were systematically characterized in detail. Photocatalytic activity results indicated that the prepared heterostructure could efficiently reduce CO 2 to CO, and its activity was significantly superior to that of pristine UiO-66 (Ce) and CdS. Under illumination of visible light, the optimal as-prepared sample achieved a CO yield of 134.3 μmol g −1 h −1 , which was 168.6 and 2.62 times higher than that of pure UiO-66(Ce) and CdS, respectively. The reinforced photocatalytic CO 2 reduction to CO activity can be ascribed to the obviously improved visible-light harvesting and effectively facilitated the separation and migration of photogenerated charge carriers via a Z-scheme charge transfer. This study may well present a novel design strategy of highly efficient MOFs-based Z-scheme photocatalytic systems for photocatalytic CO 2 reduction.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2026
·
IF 3.4
Yi Xu,Mingyang Lv,Shaoyue Shuai,Xianggui Kong,Wenying Shi
Time-dependent phosphorescence color (TDPC) materials, characterized by persistent luminescence, high quantum yield, and superior optical performance, have attracted increasing attention for information encryption applications. However, achieving high performance room-temperature phosphorescence (RTP) remains challenging, as oxygen readily quenches triplet excitons and nonradiative decay pathways arising from molecular vibrations and rotations further suppress phosphorescence. In this study, we designed and integrated three functional components: luminescent carbon dots (CDs), layered double hydroxides (LDHs), and the polymer matrix poly(vinyl alcohol) (PVA). Owing to the synergistic interplay of multiple interactions, the CDs-LDH composites exhibit pronounced TDPC behavior. The confinement within LDHs and the electrostatic interactions between LDHs and CDs effectively restrict the motion of CDs and suppress aggregation-induced quenching, thereby laying the groundwork for RTP properties. Furthermore, interfacial electrostatic repulsion and hydrogen bonding within the CDs-LDH@PVA system collaboratively generate a rigid architecture that suppresses nonradiative decay pathways of triplet excitons, thereby enhancing TDPC. Benefiting from these synergistic effects, the CDs-LDH@PVA composite demonstrates an ultralong RTP lifetime of 87.81 ms, representing a significant performance breakthrough and providing a novel strategy for the design of high-efficiency organic–inorganic TDPC materials.
✓ 已验证
DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2026
·
IF 8.2
Yifan Liu,Jiayu Chu,Liang Xiao
The precise detection of nitrite as a stable, end product and downstream metabolite of NO is critical for understanding exercise-induced physiological adaptation in athletes. However, typical electrochemical techniques usually have restricted sensitivity, photointerference, and matrix-dependent inaccuracy when detecting biological samples. In this work, we fabricated a PEC platform exploiting an ultrahigh-photocurrent CdS/polyaniline (CdS/PANI) heterostructured film to facilitate accurate and selective nitrite detection as a biologically important health parameter of exercise-induced NO metabolism. When the CdS quantum structure is combined with the conductive PANI, strongly increased visible light absorption efficiency and more rapid charge separation were achieved, and electron-hole recombination was inhibited. Such synergistic effects result in strong photocurrent responses, with nitrite being an efficient electron acceptor and contribute to a substantial concentration-dependent reduction of the photocurrent. It provides an acceptable limit of detection, a wide linear range, good selectivity toward the traditional biological interferents, and stability during use. The proposed CdS/PANI PEC system offers a rapid, cost-effective, and analytically powerful strategy for evaluating exercise-induced metabolic changes and highlights its strong potential for future applications in sports physiology, biomarker detection, and personalized performance monitoring.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2022
·Vol. 33
·期 35
·26313-26321
·
IF 2.779
Wei Song,Luo Xiang,Miao Juhong,Zhang Lei
Cd-based quantum dot light-emitting diodes (QLEDs) have outstanding optical properties, which are promising for a wide range of applications in the fields of lighting and display. However, it is still a research hotspot to prepare high-quality quantum dots (QDs) which can satisfy the requirements of preparing high-performance devices. Here, we develop a facile method to prepare high-quality alloyed CdSeS/CdS/ZnS QDs with a single precursor material, and the as-prepared alloyed QDs have high luminous intensity and narrow size distribution. The alloyed QDs have a uniform and gradient internal structure, there is no abrupt boundary in the final alloyed QDs. This is beneficial to reducing the carrier injection barrier and improving the carrier injection efficiency of electroluminescent devices. The alloyed gradient core/shell QDs-based green QLEDs were fabricated successfully and maximum current efficiency of 33.7 cd/A was obtained. This paper will provide a new strategy to prepare high-performance QLED devices.
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2022
·
IF 6.137
Jin-Yu Wang,Zhong-Zhu Hu,Xin-Ting Sun,Ya-Qin Gao,Jun-Lin Wang,Jie Xu,Gan Jin
Photocatalytic cleavage of lignin C β -O-4 bonds is a very effective method to promote the high-value utilization of lignin because lignin can provide a large number of aromatics. However, the higher carrier recombination rate severely inhibits the efficiency of photocatalytic cleavage of C β -O-4 bonds in lignin model compound. Here, heterojunction photocatalysts CdS-C 3 N 4 were successfully synthesized through the photodeposition of different masses of CdS on the surface of C 3 N 4 . The obtained photocatalyst CdS-C 3 N 4 can effectively break the lignin C β -O-4 bonds in 2-Phenoxy-1-phenylethanol (lignin model compound) and the products formed are mainly phenol (Phol) and acetophenone (Ap). More importantly, the yields of Phol and Ap were up to 86.5% and 74.3%, after only irradiation for 1.5 h, respectively, under optimum conditions. A mechanistic study showed that photocatalytic reaction follows a photogenerated electron-hole coupled mechanism. The high photocatalytic performance of CdS-C 3 N 4 is mainly ascribed to the fast photogenerated electron-hole separation capability and good dispersion of CdS on C 3 N 4 . This work offers an idea for selective cleavage of lignin C β -O-4 bonds by constructing a heterojunction photocatalyst.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Hao Huang,Yonglin Lei,Ling Bai,Yao Liang,Han Yang
The morphology of CdS affects its photocatalytic properties and assembly efficiency of CdS-based heterojunction . In this study, various morphologies of CdS, including sloping plate, spherical, flower, lamellar and leaf were synthesized by adjusting different solvents and crystal control agents in solvothermal process. By comparison of geometric matching and photocatalytic activity of the multi-shaped CdS assembling with MoS 2 , the concept of point-flat-plate microstructure assembly was firstly introduced into construction of ternary quasi 2D/2D CdS/MoS 2 /WS 2 heterojunction. Owing to better geometric configuration, quasi 2D/2D CdS/MoS 2 /WS 2 heterojunction exhibited excellent characteristics of photocatalytic degradation of tetracycline . In this work, 97.2% of tetracycline (20 mg/L, 0.1 g/L dosage) was degraded within 60 min under the irradiation of 150 W Xenon light power, which was superior to other previously reported CdS heterojunctions.The enhancement of photocatalytic performance was due to the faster separation of photogenerated electrons and the lower recombination of electron-hole pairs in point-flat-plate CdS/MoS 2 /WS 2 heterojunction. This study provides a promising way to construct highly efficient photocatalyst and other micro-nano structures for different applications.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 11
·1-9
·
IF 6.408
Luo Jiarong,Luo Junjun,Deng Lei,Yang Minghui,Chen Xiang
A “signal-on” photoelectrochemical (PEC) immunosensor was successfully constructed for determination of human epidermal growth factor receptor 2 (HER2) based on organic–inorganic heterojunction Y6/CdS as photoactive material. Compared with single organic semiconductor, Y6, Y6/CdS exhibited higher photoelectric conversion efficiency due to the formation of heterojunction. In the presence of HER2, sandwich immune structure was formed between HER2 aptamer and anti-HER2 antibody (Ab) by specific recognition. The polydopamine (PDA) nanoparticles were used for signal amplification to enhance photocurrent intensity as PDA can act as electron donor to eliminate holes and promote electron–hole pairs separation. The developed PEC sensor displayed a wide detection range of 5–1000 pg mL −1 and a low detection limit of 2.2 pg mL −1 for HER2 (S/N = 3). The sensor was successfully used for the detection of HER2 in serum with recoveries between 94.8 and 104% and relative standard deviations (RSDs) in the range of 1.2–4.3%. Furthermore, the designed immunosensor possessed good stability, selectivity, and reproducibility, which can find potential clinical applications for disease diagnosis. Graphical abstract A “signal-on” photoelectrochemical sensor was reported for human epidermal growth factor receptor 2 detection based on Y6/CdS organic–inorganic heterojunction
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）