Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Peng Qiao,Jianwei Zhang,Wenyi Wang,Yijie Lin,Meiru Zheng,Xin Guo,Yibo Liu,Yuanyuan Wang,Jiaojing Zhang,Hua Song,Xueqin Wang
Developing semiconductors with optimal bandgaps and enhancing their photocatalytic performance remain key challenges in achieving efficient hydrogen evolution from water splitting. TiO 2 nanoflowers with open architectures, which provide abundant active sites, show significant potential in this field. Additionally, the construction of photocatalysts using S-scheme heterojunctions has been proven to improve redox capacity, while the introduction of oxygen vacancies has been shown to increase efficiency. Therefore, in this study, NiS-loaded TiO 2 nanoflowers were fabricated by a simple template-free solvothermal method. Oxygen vacancies were constructed by partially reducing the composite with a low NiS concentration. The synergistic effect of the oxygen vacancies and heterojunctions greatly improved the visible-light response of the catalyst, and the degradation rate of rhodamine B reached 99.81 % in 3 h under visible light. The transient photocurrent response of 1.0 wt% NiS-TiO 2 nanoflowers was 47.52 μA·cm −2 and the rate of hydrogen evolution achieved 1782.28 μmol·g −1 ·h −1 , approximately 6.5 times higher than that of pristine TiO 2 nanoflowers. The transfer process of electrons was verified by calculation using density functional theory, and an electron transport mechanism for the S-scheme heterojunction is also proposed to illustrate the photocatalytic mechanism. The as-prepared NiS-loaded TiO 2 nanoflowers could be prime candidate for the photocatalytic hydrogen evolution from water splitting and degradation of organic pollutants.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Jing Fan,Shizhen Gao,Yanan Yang,Yuming Dong,Qi Qi,Fenhong Song,Jie Liu
As the world grapples with energy shortages and environmental challenges, photocatalytic CO 2 reduction has emerged as a game-changing solution in sustainable technology. By converting carbon dioxide into high-value hydrocarbon fuels, this innovative approach not only helps combat climate change but also paves the way for a cleaner, greener energy future. Developing high-performance, low-energy-consumption, and long-term stable photocatalysts remains a critical challenge in advancing sustainable technologies. In this study, the plate-like NiO supported ZnCdS nanoparticles with high stability is prepared by solvothermal method. Compared with ZnCdS and NiO, the photocatalytic properties of the composite materials are obviously improved. As a consequence, the 12NiO/ZnCdS composite exhibited CO evolution rates of 71.13 μmol·g -1 ·h -1 , 6.8 times higher than those of pristine ZnCdS. The selectivity toward CO reached 75%. Characterization results confirmed the successful synthesis of the catalyst, where the interfacial interaction between composite components formed a built-in electric field. This mechanism afforded more active sites, enhanced light absorption properties, and promoted carrier migration rate under photoexcitation. The efficient charge separation not only suppressed photo-corrosion but also enhanced the catalyst's reductive capacity for CO 2 reduction. This study establishes a novel design paradigm for engineering highly stable ZnCdS-based photocatalysts toward solar-driven CO 2 conversion, offering compelling inspiration for material innovation. Furthermore, the fundamental principles elucidated herein provide a valuable framework to guide future exploration in related energy-transduction technologies.
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JOURNAL OF NUCLEAR MATERIALS
·
2026
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IF 3.3
Qiang Xian,Weijie Fan,Yulin Gu,Zishan Zhang,Jiaqi Liu,Hui Xian,Li Chen,Hui Dan,Yi Ding
New SnS@SBA-15 was developed for the efficient adsorption and storage of iodine. • The iodine adsorption capacity was up to 2062 mg/g. • The iodine adsorption mechanism was chemical adsorption (SnS + I 2 → SnI 4 + S). • The retention rate of adsorption product SnI 4 was up to 76.5% after storage for 90 d. • Stable iodine storage was due to the in-situ reconstructed hydrophobic environment. Tin-based materials are expected to be excellent iodine adsorbent, but the stability of the adsorption product (SnI 4 ) poses challenge. Herein, a novel strategy based on the in-situ reconstruction of hydrophobic environment was presented for efficient iodine adsorption and storage. Stannous sulfide@mesoporous silica (SnS@SBA-15) was developed and employed for the adsorption of I 2 gas. The optimal material, SnS@SBA-15–50wt%, exhibited an excellent iodine uptake of 2062 mg/g. The adsorption was attributed to a chemical reaction (SnS + 2I 2 = SnI 4 + S). Notably, the retention rate of SnI 4 was as high as 76.5% after storage in air for 90 days due to the in-situ reconstructed hydrophobic environment. The obtained SnS@SBA-15 exhibited efficient iodine adsorption and excellent storage ability. This work presents a novel strategy to design iodine adsorbents, aimed at addressing the storage challenges of iodine adsorption products susceptible to hydrolysis. Download: Download high-res image (214KB) Download: Download full-size image
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CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
C.C. Wang,Y. Zhu,Y.M. Hu,M.R. Dong,J.K. Liu
In this paper, Ag 8 SnS 6 powder was synthesized by the one-pot method, then prepared into Ag 8 SnS 6 and Selenization treated Ag 8 SnS x Se 6-x thin films. The effects brought by the amounts of added Se powder during the annealing process on the product phases, structures, and morphologies are characterized, and the electrochemical property and the cell efficiency as assembled into the counter electrode (CEs) for dye-sensitized solar cells (DSSCs) were investigated. It showed Se into the Ag 8 SnS 6 lattice occupied the site of S to transform into Ag 8 SnS x Se 6-x . And the thin film also became unflatten since the particles became larger after Se doping. The cell efficiency of Ag 8 SnS x Se 6-x CEs reached 4.26%, which was increased by 28.31% compared to that of Ag 8 SnS 6 CEs. Ag 8 SnS x Se 6-x CEs performed lower charge transfer resistance (Rct) and (△EPP), and an increased△E value between the conduction band level of CEs and the redox potential of electrolyte. After 10 cycles, the almost unchanged cathode/anode current density implied the Ag 8 SnS x Se 6-x CEs received good structure stability. Selenization treatment was able to facilitate electron transport and enhance the electrocatalytic activity, and as expected to be a promising method in improving the performance of the DSSCs.
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MOLECULES
·
2023
·Vol. 28
·期 8
·3542
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IF 4.6
Qing Liu,Chao Yan,Yan Wang
Applications of submicron-scale particles are of rising interest in separation science due to their favorable surface-to-volume ratio and their fabrication of highly ordered structures. The uniformly dense packing beds in columns assembled from nanoparticles combined with an electroosmotic flow-driven system has great potential in a highly efficient separation system. Here, we packed capillary columns using a gravity method with synthesized nanoscale C18-SiO2particles having diameters of 300–900 nm. The separation of small molecules and proteins was evaluated in the packed columns on a pressurized capillary electrochromatography platform. The run-to-run reproducibility regarding retention time and peak area for the PAHs using a column packed with 300 nm C18-SiO2particles were less than 1.61% and 3.17%, respectively. Our study exhibited a systematic separation analysis of small molecules and proteins based on the columns packed with submicron particles combined with the pressurized capillary electrochromatography (pCEC) platform. This study may provide a promising analytical approach with extraordinary column efficiency, resolution, and speed for the separation of complex samples.Keywords:submicron scale particles;pressurized capillary electrochromatography;separation
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Applied Materials Today
·
2023
·
IF 8.3
Guiyang Yu,Ke Gong,Lan Hu,Chuanwang Xing,Yujia Hu,Debao Wang,Xiyou Li
The development of mild and environmental method for direct transformation of aromatic alcohol into hydrobenzoin via controlled C‒C coupling is a highly attractive but challenging goal. In this paper, a P-doped g-C 3 N 4 photocatalyst with NiS nanoparticles modification is first reported to apply the visible-light-driven C‒C coupling of aromatic alcohol into hydrobenzoin, as well as integrating with the production of clean H 2 fuel. The synergistic effect of doped P atoms and formed type-II heterojunction between PCN and NiS improves the light absorption ability of g-C 3 N 4 and greatly suppresses the charge recombination. Optimized 2.0% NiS/PCN composite achieves the complete conversion of aromatic alcohol within 6 h reaction time, as far as we known, which is the highest efficiency so far for aromatic alcohol conversion via photocatalytic strategy. Hydrobenzoin is controllably formed with 68% selectivity, together with a highly-efficient H 2 production rate of 994.8 μmol·g −1 ·h −1 . In-situ EPR studies reveal a preferential activation of C‒H bond than O‒H bond in aromatic alcohol by photoexcited holes, forming C 6 H 5 ĊH 2 OH radicals for subsequent coupling. The residual protons interact with photoexcited electrons to generate H 2 . Our study not only offers an efficient g-C 3 N 4 -based photocatalyst for the synthesis of hydrobenzoin under mild conditions, but also opens up a new avenue for manipulating the activation of C‒H or O‒H bonds for high selectivity of hydrobenzoin product.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2023
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IF 4.4
Tong Shao,Xiaolei Song,Yufeng Jiang,Chenchen Wang,Peng Li,Shihao Sun,Dingzhong Wang,Wei Wei
Among various chemiluminescence (CL) systems, luminol-H 2 O 2 system is used extensively due to its cheapness and sensitivity. Herein, 4-hydroxy-3-methoxybenzaldehyde, known as vanillin, was firstly found to be able to catalyze H 2 O 2 very efficiently to produce • OH and O 2 •− , which can be used to enhance the CL of luminol-H 2 O 2 as Co + . In alkaline aqueous solution, vanillin catalyzed the dissociation of H 2 O 2 into active • OH and O 2 •− radicals and accelerated luminol-H 2 O 2 reaction to emit strong CL signal. Combining the stabilizing function of β-CD, CL intensity of luminol-H 2 O 2 was enhanced further. Thus, dual-signal amplification of luminol-H 2 O 2 chemiluminescence based on the catalyzing function of vanillin and the stabilizing function of β-CD was proposed and its mechanism was explored deeply in the manuscript. Interestingly, vanillin is a highly prized flavor compound broadly used as food additive, however, the excessive intake of vanillin is harmful to human and thus the determination of vanillin is very important. On the basis of the luminol-β-CD-H 2 O 2 /vanillin reaction, a low-cost, rapid and simple CL sensor has been established to detect vanillin. The sensor was able to detect vanillin in the range of 1.0 μM ∼ 75 μM with a detection limit of 0.89 μM (S/N = 3). It can also be used for CL imaging detection with satisfactory results.
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Solar RRL
·
2023
·Vol. 7
·期 9
·2300006
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IF 7.9
Yue Jian,Tianliang Xie,Litao Han,Lei Cao,Lijing Wang,Wenhui Zhou,Zhengji Zhou,Dongxing Kou,Yuena Meng,Yafang Qi,Shengjie Yuan,Sixin Wu
Thermally evaporated Se, including the molecules of Se 2 , Se 5 , Se 6 , Se 7 , and Se 8 in the vapor at 550–600 °C, is widely used for the selenization of CZTSSe films. However, active small-molecule Se 2 tends to form large clusters of Se atoms at saturation vapor pressure, resulting in the large Se deficiency and poor crystallization of CZTSSe films. To regulate the time for Se to reach saturation vapor pressure and promote the role of active small-molecule Se, the evaporation area of Se is controlled. Then the corresponding grain growth mechanism of CZTSSe films and device efficiency are systematically investigated. The results demonstrate that the appropriate evaporation area of Se can not only optimize the time for Se vapor to reach saturation, promote the rapid reaction crystallization between the precursor films and active Se 2 , but also inhibit the nucleation at the CZTSSe/Mo interface, thus making the CZTSSe films show a perfect top-down grain growth mode. By preliminary optimization, when the evaporation area of Se is 245 mm 2 , a large-grain spanning monolayer CZTSSe thin film is obtained; meanwhile, a device with a high efficiency of 12.39% is achieved. This study provides a new selenization strategy for improving the crystallinity of CZTSSe thin films.
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APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Fang Chen,JiaYu Liao,Xuan Lu,YuZhi Xu,XiaoHuan Jiang,Mengkui Tian
Exploring efficient and stable water-splitting photocatalysts is critical for realizing conversion solar energy into hydrogen energy. Herein, a unique 2D/2D S-scheme Cd 0.5 Zn 0.5 S/CuInS 2 heterojunction with sulfur vacancies was rationally designed by chemically converting inorganic–organic hybrid ZnS(en) 0.5 into inorganic Cd 0.5 Zn 0.5 S nanosheets and fabricating with CuInS 2 at 350 °C under an N 2 atmosphere. The final Cd 0.5 Zn 0.5 S/CuInS 2 photocatalyst was composed of thin nanosheets with a substantial interfacial contact area, which enhanced light absorption and allowed directional charge transfer and separation. Under visible light irradiation, the photocatalytic H 2 evolution activities of Cd 0.5 Zn 0.5 S nanosheets is 0.79 mmol·g −1 ·h −1 , which is greater than other solid solution materials obtained by varying Cd and Zn ratios. The 2D/2D nanosheets with 8% CuInS 2 exhibit excellent hydrogen evolution activity with yields of 7.73 mmol·g −1 ·h −1 , which are 9.8 and 138 times higher than Cd 0.5 Zn 0.5 S and CuInS 2 . In addition, Cd 0.5 Zn 0.5 S/CuInS 2 photocatalyst demonstrates outstanding stability and activity over the course of 24-hour period. Moreover, the transfer pathway of photogenerated charges were explored by the energy band bending, which proved that an S-scheme heterojunction is synthesized successfully.This work offers a useful methodology for analyzing S-scheme heterojunction with abundant sulfur vacancies, and improving the solar hydrogen evolution performance of Cd 0.5 Zn 0.5 S photocatalyst.
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2023
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IF 4.3
Zhe Yu,Fudan Zhu,Tianxiao Chen,Jiayao Li,Qingliang Feng,Fengchun Yang,Xin Zhang
The establishment of an efficient photoelectrochemical (PEC) assay is of great significance for sensitive detection. The Bi 2 S 3 /Bi 2 WO 6 heterojunction is fabricated as photoactive material with the utilization of ascorbic acid (AA) as a hole-trapping agent for PEC sensing azomycin, an emerging antibiotic contaminant. The Bi 2 S 3 /Bi 2 WO 6 shows an intense photocurrent response, which is due to the hierarchical structure for abundant active sites, regulated electron coupling for charge transfer and the suitable band gap for the enhancement of light absorption. The hole-trapping agent AA is used to promote the separation of photogenerated electron-hole pairs and amplify the generated photocurrent signal. The constructed PEC sensor achieves the excellent performance for azomycin detection with a wide linear range and low detection limit, revealing an enormous potential of this strategy as a PEC platform for the sensitive detection of various targets.
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Scientific Reports
·
2023
·Vol. 13
·期 1
·1-13
·
IF 4.6
Ma Peipei,Li Jinlei,Huang Qing,Wei Shijie,Ge Hurong,Wang Zhizhong
To investigate the potential mechanism of resveratrol in anti-fatigue by network pharmacology and molecular docking, and to investigate the anti-fatigue efficacy of resveratrol through in vitro animal experiments. Resveratrol action targets and fatigue-related targets were obtained using various databases. The anti-fatigue targets of resveratrol were obtained using the Venn diagram, uploaded to the String database, imported into Cytoscape 3.7.1, and constructed into a Protein-protein interaction network. The target genes were then subjected to Gene ontology and Kyoto encyclopedia of gene and genome enrichment analysis. Molecular docking verification was performed on the binding ability of the core target to resveratrol. Using swimming-trained mice as exercise models, exhaustive swimming time and fatigue-related biochemical parameters were used as indicators to investigate the effects of resveratrol on exercise endurance and energy metabolism. 104 anti-fatigue targets and 10 core target genes of resveratrol were obtained. KEGG analysis enrichment included AGE-RAGE signaling pathway in diabetic complications, Human cytomegalovirus infection, and Pathways in cancer. Molecular docking showed that the core target genes TP53, PIK3R1, AKT1, PIK3CA, and MAPK1 had good binding activity to resveratrol. Animal experiments showed that resveratrol could prolong the exhaustive swimming time of endurance-trained mice (P < 0.01), decrease aspartate aminotransferase, alanine aminotransferase, uric acid, blood lactate (P < 0.01), decrease blood urea nitrogen (P < 0.05), increase the liver glycogen, muscle glycogen (P < 0.01). Conclusion: Resveratrol has the characteristics of multiple targets and multiple pathways in anti-fatigue; resveratrol can enhance exercise endurance in mice.
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Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Jiale Zhou,Kunquan Li,Zhuohan Chen,Xiaojing Su,Huali Xie,Lei Yao,Yunhui Wu,Xiaofan Zhang,Lu Chen,Xuting Wu,Wenjian Wu
Functional membranes with electrothermal/photothermal effects are considered an effective method for separating water/viscous crude oil mixtures. However, the loading of photothermal and electrothermal particles in polymeric membranes with poor compatibility will deteriorate the membrane performance, leading to the unstable photothermal/electrothermal effects. Therefore, we prepared a hydrophobic sandwich structure polyvinylidene fluoride/reduced graphene oxide/polydimethylsiloxane (PVDF/rGO/PDMS) composite membrane using a two-step electrospinning process, which improved the binding force between the photothermal/electrothermal particles and the matrix with the composite membrane exhibiting super fast electric heating and photothermal effect. The temperature of the composite membrane surface rapidly reached to 162.5 °C within 30 s at 25 V. In addition, the addition of graphene (GO) improved the mechanical properties of the composite membrane. Meantime, the composite membrane possessed stable hydrophobicity and lipophilicity, which was beneficial for separating water/viscous crude oil mixtures. Owing to the controllable pore structure and special wetting behavior, the water-in-oil emulsion was successfully separated. Importantly, the separation rates of the water/crude oil mixtures under the electrothermal effect was 2340 kg·m −2 ·h −1 ·bar −1 . Thus, this study provides a new method for preparing hydrophobic sandwich-like PVDF/rGO/PDMS composite membrane with electrothermal/photothermal effects, which has significant potential for engineering applications in high-viscosity crude oil removal and water-in-oil emulsion separation.
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