Joule
·
2023
·
IF 39.8
Tiancheng He,Haiyan Wang,Bing Lu,Tianlei Guang,Ce Yang,Yaxin Huang,Huhu Cheng,Liangti Qu
Ubiquitous moisture is of particular attraction for sustainable power generation. However, rigorous assembly procedures limit the efficient large-scale integration for moisture-enabled electric generators (MEGs). Herein, we develop fully printed planar MEG (PMEG) arrays using modulated polycation and polyanion inks, which maximize access to moisture and make it free of strict assembly and device packaging. Thus, a PMEG unit (only 0.3 cm 2 ) generates an open-circuit voltage of up to 1.1 V, along with a power density of 2.6 μW cm −2 . A small piece of sheet with 200 PMEG units offers a maximum voltage of 200 V and a current of 1.3 mA. A standard power module is constructed to meet the on-demand power supply requirements of compact electronics. Furthermore, scalable and customizable PMEG arrays can be compatibly integrated with flexible circuits, as demonstrated by a fully printed self-powered functional system including PMEG arrays and energy-storage and electrochromic devices.
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高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Yingqian Zhang,Zhifei Ma,Xianchuan Xie,Daishe Wu,Xing Peng,Jianlong Li
Zero-valent iron (ZVI) is a promising technology for groundwater treatment , and its efficiency primarily depends on the electron transfer . However, there are still some problems such as low electron efficiency of ZVI particles and high yield of iron sludge that limits the performance, which warrant further investigation. In our study, a silicotungsten acidified ZVI composite (m-WZVI) was synthesized by ball milling to activate PS to degrade phenol. m-WZVI has a better performance on phenol degradation (with a removal rate of 91.82%) than ball mill ZVI(m-ZVI) with persulfate (PS) (with a removal rate of 59.37%). Compared with m-ZVI, the first-order kinetic constant (k obs ) of m-WZVI/PS is 2–3 times higher than that of the others. Iron ion was gradually leached in m-WZVI/PS system, being only 2.11 mg/L after 30 min, having to avoid excessive consumption of active substances. The underlying mechanisms of m-WZVI for PS activation mainly include: 1) were elucidated through different characterizations analyses that accounted for silictungstic acid (STA) can be combined with ZVI, and a new electron donor (SiW 12 4− ) was obtained, which improved the transfer rate performance of electrons for activating PS; 2) singlet oxygen ( 1 O 2 ) is the main active substance for phenol degradation, but other radicals also played an important role. Therefore, m-WZVI has good prospects for improving the electron utilization of ZVI.
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高影响因子
TALANTA
·
2023
·
IF 6.1
Feng Luo,Yue Tang,Jia Zheng,Zhengmin Xie,Junjun Wang,Jianli Zhou,Yuangen Wu
Carbendazim (CBZ) is a widely used pesticides, and its excessive intake is serious damage to humans and animals. Herein, a stable and sensitive colorimetric aptasensor for rapid detection of CBZ residue has been established based on the enhancement of CBZ-specific aptamer (CZ-13) on oxidase-mimicking activity of octahedral Ag 2 O nanoparticles (NPs). The CZ-13 aptamer can significantly increase the catalytic activity by promoting the production of superoxide anion (·O 2 − ) on the surface of Ag 2 O NPs and enhancing the affinity of octahedral Ag 2 O NPs to 3,3′,5,5′-tetramethylbenzidine (TMB) molecules. In the presence of CBZ, the quantity of CZ-13 aptamer will be exhausted due to the specific binding to CBZ pesticide. Thus, the rest CZ-13 aptamer no longer enhanced the catalytic activity of octahedral Ag 2 O NPs, which leads to the change in color of sensing solution. The color change of sensing solution can be easily converted to the corresponding RGB value by a smartphone for quantitative and rapid detection of CBZ. The designed aptasensor has excellent sensitivity and specificity, and the limit of detection was determined as low as 7.35 μg L −1 for CBZ assay. Besides, the aptasensor exhibited good recoveries in the spiked cabbage, apple and cucumber, showing that it may have broad application prospects for detecting CBZ residues in agriculture products.
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ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Pengyu Gao,Guotai Li,Zhiguo Wang,Hui Zhang,Yansheng Shan,Xin Yuan,Qiang Shi,Xue Dou,Qihui Zhou,Quanchen Xu
Periodontitis is a chronic inflammatory disease induced by a plaque biofilm, which can lead to the destruction of the periodontal support tissue and even teeth loss. The common strategies of periodontitis treatment are to eliminate bacterial/biofilm-related inflammation and subsequently inhibit alveolar bone resorption, for which antibiotic therapy is the most traditional one. However, impenetrable polymeric substances on bacterial biofilms make it difficult for traditional antimicrobial agents to take effect. In this study, a novel nanoparticle protease-loaded CuS NPs was developed, combining the advances of photodynamic and photothermal therapy from CuS and enzymatic degradation of the biofilm by a protease. The photothermal activity and the reactive oxygen generation capacity of the designed nanoparticles were verified by the experimental results, constituting the basis of antibacterial function. Next, the high antimicrobial activity of CuS@A NPs onFusobacterium nucleatumand its biofilm was demonstrated. The proper hemo/cytocompatibility of CuS-based NPs was demonstrated by in vitro assays. Last, effective treatment against periodontitis was achieved in a rat periodontitis model through the significant efficacy of inhibiting bone resorption and alleviating inflammation. Thus, the developed CuS@A NPs prove a promising material for the management of periodontitis.
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JOURNAL OF HAZARDOUS MATERIALS
·
2023
·
IF 13.6
Yifei Feng,Nan Xu,Lei Peng,Jiayu Shen,Xiangrong Yang
Remediating hexavalent chromium (Cr(VI))-contaminated soils using green synthesized nano-iron (g-nZVI), which merits high reactivity, low cost, and environmental friendliness, has attracted significant attention. However, the broad existence of nano plastics (NPs) could adsorb Cr(VI) and subsequently influence in situ remediation of Cr(VI)-contaminated soil by g-nZVI. To clarify this issue and improve the remediation efficiency, we investigated the co-transport between Cr(VI) and g-nZVI coexisting with sulfonyl-amino-modified nano plastics (SANPs) in water-saturated sand media in the presence of oxyanions (i.e., phosphate and sulfate) at environmentally relevant conditions. This study found that SANPs inhibited the Cr(VI) reduction to Cr(III) (i.e., Cr 2 O 3 ) by g-nZVI, attributed to nZVI-SANPs hetero-aggregates and Cr(VI) adsorption on SANPs. Notably, “nZVI-[SANPs•••Cr(III)]” agglomerate happened via complexation of [–NH 3 •••Cr(III)] between Cr(III) from Cr(VI) reduced by g-nZVI and amino group on SANPs. Further, the co-presence of phosphate (stronger adsorption on SANPs than g-nZVI) remarkably suppressed Cr(VI) reduction. Then, it promoted the co-transport of Cr(VI) with nZVI-SANPs hetero-aggregates, which could potentially threaten underground water. Fundamentally, sulfate would instead concentrate on SANPs, hardly impacting the reactions between Cr(VI) and g-nZVI. Overall, our findings provide crucial insights into understanding the Cr(VI) species transformation during co-transport with g-nZVI in ubiquitous complexed soil environments (i.e., containing oxyanions) contaminated by SANPs.
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ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2023
·
IF 11.4
Li Gong,Jingting Chen,Yao Hu,Kai He,Eric J. Bylaska,Paul G. Tratnyek,Feng He
Chloroform (CF) is a widely used chemical reagent and disinfectant and a probable human carcinogen. The extensive literature on halocarbon reduction with zerovalent iron (ZVI) shows that transformation of CF is slow, even with nano, bimetallic, sulfidated, and other modified forms of ZVI. In this study, an alternative method of ZVI modification─involving simultaneous sulfidation and nitridation through mechanochemical ball milling─was developed and shown to give improved degradation of CF (i.e., higher degradation rate and inhibited H2 evolution reaction). The composite material (denoted as S–N(C)–ZVI) gave synergistic effects of nitridation and sulfidation on CF degradation. A complete chemical reaction network (CRN) analysis of CF degradation suggests that O-nucleophile-mediated transformation pathways may be the main route for the formation of the terminal nonchlorinated products (formate, CO, and glycolic polymers) that have been used to explain the undetected products needed for mass balance. Material characterizations of the ZVI recovered after batch experiments showed that sulfidation and nitridation promoted the formation of Fe3O4 on the S–N(C)–ZVI particles, and the effect of aging on CF degradation rates was minor for S–N(C)–ZVI. The synergistic benefits of sulfidation and nitridation on CF degradation were also observed in experiments performed with groundwater.
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高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-18
·
IF 16.6
Wu Yandi,Huang Tongsheng,Li Xinghui,Shen Conghui,Ren Honglin,Wang Haiping,Wu Teng,Fu Xinlu,Deng Shijie,Feng Ziqi,Xiong Shijie,Li Hui,Gao Saifei,Yang Zhenyu,Gao Fei,Dong Lele,Cheng Jianding,Cai Weibin
Diabetic cardiomyopathy is a primary myocardial injury induced by diabetes with complex pathogenesis. In this study, we identify disordered cardiac retinol metabolism in type 2 diabetic male mice and patients characterized by retinol overload, all-trans retinoic acid deficiency. By supplementing type 2 diabetic male mice with retinol or all-trans retinoic acid, we demonstrate that both cardiac retinol overload and all-trans retinoic acid deficiency promote diabetic cardiomyopathy. Mechanistically, by constructing cardiomyocyte-specific conditional retinol dehydrogenase 10-knockout male mice and overexpressing retinol dehydrogenase 10 in male type 2 diabetic mice via adeno-associated virus, we verify that the reduction in cardiac retinol dehydrogenase 10 is the initiating factor for cardiac retinol metabolism disorder and results in diabetic cardiomyopathy through lipotoxicity and ferroptosis. Therefore, we suggest that the reduction of cardiac retinol dehydrogenase 10 and its mediated disorder of cardiac retinol metabolism is a new mechanism underlying diabetic cardiomyopathy.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Ying Zhao,Qingxu Li,Qiantao Shi,Beidou Xi,Xinyi Zhang,Zhiqiang Jian,Gaoting Zhou,Xiaoguang Meng,Xuhui Mao,Dejun Kang,Bin Gong
Extensive studies have been carried out on phosphate removal by zero valent iron (ZVI). Different mechanisms of phosphate removal by ZVI such as phosphate adsorption and precipitation of ferric phosphate and vivianite (Fe 3 (PO 4 ) 2 ·8H 2 O) have been reported. In this study, attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray powder diffraction (XRD), and X-ray absorption near edge spectroscopy (XANES) were used to elucidate the mechanisms of phosphate removal by micron-scale zero-valent (mZVI). Time-series ATR-FTIR analysis revealed that phosphate was removed by ZVI in two steps: a) adsorption of phosphate in the first 3 days, and b) slow conversion of the adsorbed phosphate into the precipitated form in 6 days. XRD and XANES analysis determined that iron oxides, ferric ion, and ZVI with oxide layer inhibited the formation of vivianite, resulting in the formation of phosphate precipitates, such as H 2 Fe(II)P 2 O 7 . The results suggested that phosphate is removed by ZVI mainly through precipitation under aerobic conditions. The knowledge gained in this study improves the fundamental understanding of the phosphate removal processes via ZVI.
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高影响因子
Journal of Environmental Sciences
·
2023
·
IF 6.9
Hanbing Meng,Shiwen Hu,Zebin Hong,Wenting Chi,Guojun Chen,Kuan Cheng,Qi Wang,Tongxu Liu,Fangbai Li,Kexue Liu,Yang Yang
Zero-valent iron (ZVI) is a promising material for the remediation of Cd-contaminated paddy soils. However, the effects of ZVI added during flooding or drainage processes on cadmium (Cd) retention remain unclear. Herein, Cd-contaminated paddy soil was incubated for 40 days of flooding and then for 15 days of drainage, and the underlying mechanisms of Cd immobilization coupled with Fe/S/N redox processes were investigated. The addition of ZVI to the flooding process was more conducive to Cd immobilization. Less potential available Cd was detected by adding ZVI before flooding, which may be due to the increase in paddy soil pH and newly formed secondary Fe minerals. Moreover, the reductive dissolution of Fe minerals promoted the release of soil colloids, thereby increasing significantly the surface sites and causing Cd immobilization. Additionally, the addition of ZVI before flooding played a vital role in Cd retention after soil drainage. In contrast, the addition of ZVI in the drainage phase was not conducive to Cd retention, which might be due to the rapid decrease in soil pH that inhibited Cd adsorption and further immobilization on soil surfaces. The findings of this study demonstrated that Cd availability in paddy soil was largely reduced by adding ZVI during the flooding period and provide a novel insight into the mechanisms of ZVI remediation in Cd-contaminated paddy soils.
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ENVIRONMENTAL RESEARCH
·
2023
·
IF 8.3
Hao Cheng,Chao Huang,Ping Wang,Dingxun Ling,Xiaoyu Zheng,Haiyin Xu,Chongling Feng,Hao Liu,Min Cheng,Zhiming Liu
The conventional Fenton process has the drawbacks of low efficiency of Fe 3+ /Fe 2+ conversion, low utilization of H 2 O 2 , and narrow range of pH. In this paper, molybdenum sulfide (MoS 2 ) was used as a co-catalyst to boost the nanoscale zero-valent iron (nZVI) based heterogeneous Fenton-like process for the degradation of Rhodamine B (RhB). The catalytic performance, influences of parameters, degradation mechanism, and toxicity of intermediates were explored. Compared with the conventional like-Fenton process, the existence of MoS 2 accelerated the decomposition of H 2 O 2 and the RhB degradation rate constant of MoS 2 /nZVI/H 2 O 2 reached more than six times that of nZVI/H 2 O 2 . In addition, the effective pH range of MoS 2 /nZVI/H 2 O 2 was broadened to 9.0 with 84.9% of RhB being removed within 15 min. The co-catalytic system of MoS 2 and nZVI was stable and had high reusability according to the results of four consecutive runs. Quenching tests and electron paramagnetic resonance (EPR) demonstrated that hydroxyl radical (·OH), superoxide anions (·O 2 − ), and singlet oxygen ( 1 O 2 ) were all involved in MoS 2 /nZVI/H 2 O 2 . Compared with nZVI/H 2 O 2 system, MoS 2 not only increased the corrosion of nZVI but also accelerated the conversion of Fe 3+ /Fe 2+ . ECOSAR analysis suggested that the overall acute and chronic toxicity of the degradation products decreased after treatment. Hence, this MoS 2 co-catalytic nZVI based Fenton-like process can be used as a promising alternative for the treatment of organic wastewater.
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高影响因子
ENVIRONMENTAL ENGINEERING SCIENCE
·
2023
·Vol. 40
·期 4
·127-135
·
IF 1.8
Bing Wang,Shuang Li,Chaoxiao Deng,Wei Ma
In the oil and gas industry, sulfonated drilling fluid, as a water-based drilling fluid, is applied on a large scale. The waste fluid mixed with drilling cuttings forms solid waste-sulfonated drilling waste (SW-SDM). Considering the water-soluble refractory organic matter in SW-SDM and the possible leaching of soil organic matter, processing SW-SDM to protect soil and groundwater from pollution is urgent. The present article systematically investigated the degradation of benzo[a]pyrene (BaP) in SW-SDM by iron (Fe) activated persulfate (PS) oxidation with special attention to revealing the influence of background Fe on degradation. The experimental results demonstrated that BaP in SW-SDM could be partly degraded by the activated PS oxidation system. Parameters such as the pH and dosages of PS and Fe may greatly influence the experimental results. A higher dosage of Fe inhibits degradation, whereas the addition of a small amount of Fe or even no Fe may facilitate the degradation of BaP. Naturally present Fe(II), Fe(III), and dissolved Fe from SW-SDM itself may activate PS for BaP degradation. The feasibility of the SW-SDM treatment was evaluated. Finally, the degradation intermediates of BaP by Fe and PS oxidation in soil were enriched by solid phase extraction and identified by gas chromatography-mass spectrometry to propose a transformed pathway.
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JOURNAL OF MOLECULAR LIQUIDS
·
2023
·
IF 6
Chao Li,Yun Teng,Huanong Cheng,Hongwei Jin,Kangkang Li,Zhou Feng,Zhonghao Li,Xinshun Tan,Shiqing Zheng
The density and viscosity of N-butylmorpholine bromide iron-based ionic liquids ( r FeCl 3 / [Nbmm]Br) with two iron-morpholine ratios ( r = 0.8 and 1.0) mol·mol −1 were measured at 303.15–348.15 K and 101.3 kPa. Density and viscosity data were fitted by empirical correlations for temperature. The average relative errors were less than 0.02 % and 2 %, respectively. The density and viscosity decrease with increasing temperature. The density increases with the increase of r , while the viscosity shows the opposite trend. The gas-liquid equilibrium data of H 2 S in r FeCl 3 /[Nbmm]Br were measured by the isochoric pressure drop method at temperatures of 303.15–348.15 K, pressures of 0–200 kPa, and r of 0.8 and 1.0 mol·mol −1 . The total solubility of H 2 S increases with decreasing temperature, increasing pressure, and decreasing r . The measured solubility data were fitted by the reaction equilibrium thermodynamic model. Chemical reaction equilibrium constant and the Henry's constant at different temperatures and different r were obtained. The average relative error of model fitting is less than 3 %. The results show that the chemical reaction equilibrium constant and the Henry’s constant both decrease with the increase of r , and decrease of temperature. Effect of molecular structure on reaction equilibrium constants was explained by quantum chemistry calculation. The absorption of H 2 S in r FeCl 3 / [Nbmm]Br at low pressure is dominated by chemical absorption. With the increase of pressure, the proportion of physical absorption continues to increase, and gradually occupies the main part.
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