JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2025
·
IF 8.4
Jiayi Wang,Penggang Ren,Ying Zhang,Zihang Cai,Zhengyan Chen,Yanling Jin,Zhengzheng Guo
BiOI is a promising photocatalyst due to its exceptional visible light response and high absorption coefficient; however, its performance is hindered by the rapid recombination of electron-hole (e − -h + ) pairs. Herein, a 2D/3D BiOI/g-C 3 N 4 S-scheme heterojunction catalyst was designed and constructed through the alkali etching strategy and subsequent microwave-assisted hydrothermal strategy. The abundant surface active sites and matched band gap of g-C 3 N 4 prepared through alkali etching facilitates anchoring of BiOI nanosheets, contact with contaminants and construction of heterojunctions. 2D/3D S-scheme heterojunction substantially promote electron-hole (e − -h + ) pairs separation and transfer. Profited from their synergistic effects, the 2D/3D BiOI/g-C 3 N 4 heterojunction delivers superior photocatalytic activity toward four different types of pollutants: methylene blue (91.7 %), tetracycline (91.9 %), eosin y (90.9 %) and methyl orange (97.7 %), and demonstrates excellent cyclic stability after seven methylene blue cyclic degradation experiments. Furthermore, BiOI/g-C 3 N 4 has shown satisfactory practicability in many simulation experiments, such as coexisting cations, different pH and real water. A feasible strategy to prepare a visible-light-driven multidimensional coordinated S-scheme heterojunction photocatalyst is provided in this work.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Building Engineering
·
2024
·
IF 6.7
Baomin Wang,Weigao Ding,Chengcheng Fan,Fei Liu,Wenxin Lu,Haoxiang Yang
C-S-H gel is a complex cementitious system, and the properties present significant difference with various Ca/Si ratios. The immobilization mechanism of three heavy metals in C-S-H gel at various Ca/Si ratios was investigated in this work from the prospect of the physical adsorption and chemical immobilization. Results showed that higher Ca/Si ratios can result in an increase in silicon chain polymerization, and lower BET specific area, and C-S-H gel with various Ca/Si ratios showed the excellent immobilization for heavy metals. Pb(II) and Zn(II) can form hydroxyl complex polyhedra in C-S-H under strongly alkaline environments, and increase the silicon chain polymerization degree similar to the doping of C-S-H gel by Al. However, Cd(II) was immobilized in the C-S-H gel with the formation of a solid solution under the action of ion exchange with Ca(II), rather than in the form of hydroxyl complex polyhedral and cadmium hydroxide coprecipitates. The highest adsorption capacity of Pb(II) was realized in C-S-H gel with a Ca/Si molar ratio of 0.9, reaching 95.6006 mg/g. Pb(II) was mainly immobilized in C-S-H gel via physical and chemical adsorption, and the effect of chemical adsorption tended to be significant as the Ca/Si molar ratio increased. And the formation of Pb 8 Ca(Si 2 O 7 ) 3 can be detected in C-S-H gel with a higher Ca/Si molar ratio.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2025
·
IF 6.1
Zhipeng Xie,Lu Wang,Yuhui Cheng,Qian Guo,Haibo Zhou,Congshu Huang,Jingjing Wang,Weifeng Bu
Improving the performance of antifouling coating under illumination-involved harsh environments is of prime scientific and engineering importance. However, it still remains a big challenge due to the strong photo-corrosion character of cuprous oxide (Cu 2 O) that works as the most widely-used primary antifoulant. To address this issue, a novel heterojunction of Cu 2 O@TiO 2 was constructed by in situ adsorption-hydrolysis approach. The as-designed heterojunction structure endows superior photo-stability with Cu 2 O@TiO 2 , which has been proven to proceed via S-scheme mechanism by a set of complementary characterizations including in situ XPS and EPR. As anticipated, the resulted Cu 2 O@TiO 2 coating manifests excellent stability and antifouling performance under illumination-involved mimetic service conditions such as dry-dock and waterline environments, as substantiated by the bioassays and marine field trials. A dual-target photo-synergized enhancing mechanism for the S-scheme Cu 2 O@TiO 2 could be deduced as to: (i) inhibit the accumulation of holes on Cu 2 O to exert a stabilization effect; (ii) boost the generation of reactive oxygen species (ROS, including HO /O 2 − ) to enhance the antifouling property. The methodology provides a proof-of-concept design to fabricate high photo-stable Cu 2 O-based antifoulant materials, with the gain in understanding the intrinsic failure principle of coatings and the biocidal mechanism of cuprous oxide toward marine application.
研究领域:
材料科学
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海洋生物学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2025
·
IF 11.3
Wenmiao He,Xiu Chen,Shijie Zhou,Zuqiang Fu,Jin Xu,Qian Liu,Francisco Javier Cubero,Zhong Li,Yong Zhou,Dayong Wang,Guibin Jiang,Aihua Gu
Despite the widespread prevalence of BPS in human populations, its potential impacts on offspring and the underlying mechanisms remain poorly understood. In this study, we found that parental exposure to BPS at environmental doses induced lipid accumulation in Caenorhabditis elegans from one-generational parent (P0) to two-generational offspring (F2), even in the absence of BPS exposure in offspring. Mechanistically, BPS-induced transgenerational lipid accumulation was due to the activation of lipogenic genes (fat-5 and fat-7, encoding delta-9 desaturases) and the associated transcriptional regulators (sbp-1 and mdt-15). Knockdown of methyltransferase wdr-5.1 reversed BPS-induced transgenerational inheritance via inhibiting histone H3K4 trimethylation (H3K4me3). Interestingly, germline-specific wdr-5.1/H3K4me3, rather than intestinal, was identified as being responsible for transgenerational inheritance. Our study provides the first evidence elucidating the mechanisms through which environmentally relevant BPS exposure induces lipid accumulation and transmits this effect across generations.
研究领域:
环境毒理学
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表观遗传学
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发育生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Junchang Liu,Weijie Yuan,Minghui Zhu,Sivarasan Ganesan,Nikolai Ivanovich Vatin,Dafeng Zhang,Xue-Yang Ji,Xipeng Pu,Xinghui Liu
The widespread application of antibiotics, such as tetracycline (TC), has led to severe environmental problems. Herein, the rod-like Mn 0.3 Cd 0.7 S (MCS) coupled with flower-like FeNi 8 -LDH self-assembled from nanosheets S-scheme heterojunction is successfully constructed by a simple physical ultrasonic-assisted combined with a grinding method. The optimized MCS/30FeNi 8 -LDH heterojunction exhibits excellent photocatalytic degradation of TC under visible light with a removal rate of 72.5 % within 30 min along with excellent cycling stability, which enhanced 14.5 and 1.68 times compared to those of pristine FeNi 8 -LDH and MCS. The correlation between S-scheme heterojunction and photocatalysis performance clarify the rapidly transfer pathway of photogenerated carriers between MCS and FeNi 8 -LDH. The trapping experiment confirms •O 2 - and h + are the primary active species, with h + playing a dominant role in the degradation process. The enhanced photocatalytic degradation performance can be attributed to the formation of S-scheme heterojunction with well-matched band alignment, which remains the powerful reduction capability of generated electrons of FeNi 8 -LDH and more robust oxidation capability of photogenerated holes of MCS. This work not only provides a potential solution for photocatalysis degrading TC, but also expands the S-scheme heterojunction constructed strategy to the realm of energy storage and conversion .
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Ziyu Qin,Xiaoxiao Song,Junyong Wang,Xiang Li,Congyi Wu,Xiaoxia Wang,Xueqiong Yin,Dawen Zeng
For the important applications of gas identification related to specific diseases in healthcare, flexible gas sensors have attracted more attention. Among them, two-dimensional transition metal dichalcogenides (2D TMDs) have been known as good promising flexible gas-sensitive materials. While how to tightly attach 2D materials on flexible substrates is still challenging. Here, we propose an enhanced room-temperature flexible paper-substrate sensors based on 2D tungsten disulfide (WS 2 ) with S defects, which are facilely synthesized by chemical exfoliation and vacuum filtration method. Structure characterization shows that most of the as-prepared 2D WS 2 are within 3 layers. Spectroscopic characterization proves the existence of S defects on the surface of 2D WS 2 produced by chemical exfoliation. The room-temperature (25 °C) NH 3 gas sensitivity results show that the response intensity of 2D WS 2 with rich S defects is nearly three times higher than the highly crystalline 2D WS 2 . The results of the flexible gas sensitivity indicate the fast response and high stability of our devices in breathing detection and bending experiments. Furthermore, the devices can effectively distinguish bending stress changes and gas-sensitive response signals at the same time, realizing multifunctional sensing detection. Our work will be a reference for fabricating flexible sensors based on 2D materials.
研究领域:
材料科学
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生物医学工程
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气体传感技术
✓ 已验证
DOI
高影响因子
Polymers
·
2018
·Vol. 10
·期 9
·967
·
IF 2.935
Si Gao,Ji Zhao,Xing Wang,Yanzhu Guo,Ying Han,Jinghui Zhou
This study focused on the structural differences of lignin after pyridine–acetic acid–water (PAW) and dioxane–acidic water (DAW) purification processes. These structural differences included the S/G ratio, condensed structure, weight-average (MW) molecular weights, β-O-4 linkages and sugar content. The chemical structure of the isolated crude lignin (CL), PAW purified lignin (PPL) and DAW purified lignin (DPL) was elucidated using quantitative13C NMR, 2D-HSQC NMR spectra, thermogravimetric analysis (TGA), gel permeation chromatography (GPC) and Fourier transform infrared spectroscopy (FTIR). The results showed that the PPL fractions contain fewer condensed structures, higher S/G ratios, more β-O-4 linkages, higher average MWand lower thermal degradation properties compared to the CL and DPL fractions. Furthermore, the PAW process was more selective in removing condensed units and enriching S-type lignin from CL compared to the DAW process. These results provide valuable information for understanding which purification process is more suitable to be applied for lignin.Keywords:lignin purification;structural recognition;condensed lignin;S/G ratio
研究领域:
植物化学
·
生物质能源
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
·
IF 9.4
Ming Xu,Yu Ma,Lei Wang,Shu Huang,Liming Chen,Rong Liu,Zikun Li,Guohui Yuan
Transition metal selenides (TMS) have been used to prepare hundreds of electrode materials for ion batteries due to their superior theoretical capacity, but have been repeatedly limited by the sluggish reaction kinetics and the enormous volume change during the repeated charge/discharge process. Here, we report a facile strategy to fabricate organic–inorganic composites by engineering a unique chemical bonding interface between TMS and conductive polymers. For the first time, poly(3,4-ethylenedioxythiophene) (PEDOT) is utilized to encapsulate iron diselenide (FeSe 2 ) nanoparticles by in situ polymerization, and the Fe-S bonds are meanwhile formed at the interface of FeSe 2 and PEDOT. The experimental analysis demonstrates the stability of Fe-S bonds during the sodiation/desodiation process and after long cycling, which can serve as a “bridge” for fast charge transfer and also serve as a “rivet” to stabilize the composite structure. When used for sodium ion storage, the composite offers an exceptionally long lifetime of up to 17,000 loops at 10 A/g without capacity degradation. In addition, it delivers a high specific capacity of 490.4 mAh/g and retains 60 % when the current density is amplified 150 times. The assembled full cell also exhibits excellent cycling stability. This work will provide a feasible way to improve the metal oxide/sulfide/selenides for long-life ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Yating Ai,Jiajie Hu,Xianqiang Xiong,Sónia A.C. Carabineiro,Yuesheng Li,Nikolay Sirotkin,Alexander Agafonov,Kangle Lv
Efficient interfacial charge transfer and robust interface interactions are crucial to achieve superior spatial separation of carriers and develop advanced heterogeneous photocatalysts . This study describes the synthesis of a novel S-scheme heterojunction of ZnO/In 2 S 3 , with S−O covalent bonds , achieved through a hydrothermal method . The optimized heterojunction shows exceptional photocatalytic activity , achieving a H 2 generation rate of 2488 μmol g −1 h −1 and a degradation efficiency of 86 % for tetracycline hydrochloride (TCH) within 2 h. These values surpass those of In 2 S 3 alone by 35 and 1.4 times, respectively. Various techniques, including electron spin resonance, X-ray photoelectron spectroscopy, Kelvin probe force microscopy and density functional theory calculations confirm the S-scheme heterojunction. The establishment of a chemical S−O bond between In 2 S 3 and ZnO facilitates an atomic level interfacial pathway, enabling efficient transportation of interfacial electrons.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2025
·
IF 5.5
Jiaxue Gao,Hua Lin,Tianwei Wang,Caicheng Song,Rongwen Lu,Shufen Zhang
Nowadays, supercapacitors as energy storage devices have gradually attracted more attention. In this paper, a tailored “staggered reaction” strategy was employed to synthesize the N/S codoped hollow porous carbon nanospheres as an electrode material for high-performance supercapacitors. This manner features the appropriate involvement of the solvent acetone in the reaction within the system, which enables the sequential reaction process to obtain the core–shell structure with different internal and external compositions. Furthermore, the core could be dissolved by soaking in a formic acid solution, thereby achieving a targeted hollow structure. In addition, in situ doping was achieved by selecting suitable precursors (m-phenylenediamine and 2,4-diaminobenzenesulfonic acid) containing N and S, and the effect of N and S content on performance was investigated in detail. The results reveal that with the increase of N and S content, the specific capacitance of carbon nanospheres first increases and then decreases. Ultimately, the maximum specific capacitances of 398 and 277 F·g–1 were obtained under the current density of 0.2 A·g–1 in a three-electrode system and a two-electrode system, respectively. After 10,000 cycles, the specific capacitance can be basically maintained at 100% with excellent cycling stability.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2012
·Vol. 2
·期 7
·2666-2670
·
IF 0
Meina Wang,Xiangyou Liu,Chuanbao Cao,Cui Shi
Cu–In–S ternary nanocrystals (NCs), with an average size of less than 10 nm, were synthesized in an aqueous solution containing bovine serum albumin (BSA). X-Ray powder diffraction (XRD) and selected-area electron diffraction (SAED) analyses showed that these NCs featured a roquesite structure. The composition of the NCs could be adjusted by controlling the molar ratio of the starting Cu/In precursors in the reaction solution, which led to a tunable band gap ranging from 1.48 eV to 2.30 eV. Cytotoxicity testing showed that the BSA-stabilized Cu–In–S NCs had little effect on the cell viability, which suggested that they are user-friendly and environmentally benign. With low cost, minimal energy input and environmental impact, this simple approach shows great potential for industrial applications.
研究领域:
材料科学
·
纳米技术
·
生物学
·
环境科学
✓ 已验证
DOI
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Zi-Yu Zhang,Yi-Yue Feng,Ju Luo,Wei Wang,XianXiu Qiu,Wen-Chao Yang
Developing efficient tools to rapidly diagnose early plant stress becomes increasingly important due to the global food demand and the sustainable intensification of agriculture. Enzymes are highly associated with various environmental stresses in plants, some of which are considered biomarkers. Here, we report a new glutathione S -transferase (GST)-activated fluorogenic sensor (named as FPG ) for in vivo diagnostics of plant stress responses. The developed biosensor exhibits a good capability for in situ real-time fluorescence imaging of GST in living cells. More importantly, it enabled the direct visible, monitoring of plants subjected to various biotic and abiotic stresses in a non-invasive and non-destructive manner. Furthermore, FPG allowed the sensitive indication of fungal ( Sclerotinia sclerotiorum ) and viral (tobacco mosaic virus) diseases in Nicotiana benthamiana . Collectively, it reveals that the developed biosensor holds promise for the future development of high-throughput screening for plant phenotyping and the diagnosis of numerous environmental stresses.
研究领域:
植物学
·
生物技术
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）