JOURNAL OF HAZARDOUS MATERIALS
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2023
·
IF 13.6
Liangchen Long,Shutao Wang,Zhelu Gao,Shijie You,Liangliang Wei
A comprehensive study was conducted to investigate how ultraviolet (UV) irradiation combined with electrochemistry (EC) can efficiently remove human body fluids (HBFs) related pollutants, such as urea/creatinine/hippuric acid, from swimming pool water (SPW). In comparison with the chlorination, UV, EC, and UV/chlorine treatments, the EC/UV treatment exhibited the highest removal rates for these typical pollutants (TPs) from HBFs in synthetic SPW. Specifically, increasing the operating current of the EC/UV process from 20 to 60 mA, as well as NaCl content from 0.5 to 3.0 g/L, improved urea and creatinine degradation while having no influence on hippuric acid . In contrast, EC/UV process was resilient to changes in water parameters (pH, HCO 3 - , and actual water matrix). Urea removal was primarily attributable to reactive chlorine species (RCS), whereas creatinine and hippuric acid removal were primarily related to hydroxyl radical , UV photolysis, and RCS. In addition, the EC/UV procedure can lessen the propensity for creatinine and hippuric acid to generate disinfection by-products. We can therefore draw the conclusion that the EC/UV process is a green and efficient in-situ technology for removing HBFs related TPs from SPW with the benefits of needless chlorine-based chemical additive, easy operation, continuous disinfection efficiency, and fewer byproducts production.
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Food & Function
·
2023
·
IF 6.1
Jiaxin Shen,Yanping Wu,Teng Wei,Yangzheng He,Xiaoru Liu,Zeyuan Deng,Jing Li
Phospholipids play a crucial role in the growth and neurodevelopment of infants. Currently, soybean phospholipids (SPLs) are the common phospholipid component in most infant formulas (IFs), which, however, shows an obvious difference with the phospholipid (PL) composition of human milk fat. Therefore, in the present study, human milk phospholipid analogs (HMPAs) were prepared by mimicking the composition of PE, PC, PI, PS, and SM in breast milk phospholipids and the composition of the major fatty acids (C16:0, C18:0, C18:1, and C18:2), and their digestion and absorption characteristics were explored using in vitro and mice models. The prepared HMPA contained 26.48% PE, 24.64% PC, 36.19% SM, 6.35% PI, and 6.32% PS, with 40.51% C16:0, 17.02% C18:0, 29.19% C18:1, and 13.26% C18:2, showing different digestive properties relative to SPL. There was little effect on the physical and chemical properties of HMPA under in vitro gastric conditions. The hydrolysis degree, fatty acids release rate, and average particle size decreasing rate of HMPA was significantly higher than that of SPL during digestion in vitro intestine (P < 0.05), showing better digestive process relative to SPL. In terms of the mice model, HMPA had a higher hydrolysis degree in the intestinal tract. Based on the area under curve (AUC) analysis of serum fatty acids, it was found that despite HMPA being absorbed at a slower rate than SPL, it was absorbed more than SPL. In summary, the digestion and absorption of HMPA were preferred to SPL, and these obtained results might provide a theoretical basis for the development and utilization of HMPA in IF.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
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IF 8.6
Kong-Lei Zhu,Ying-Jiao Li,Qiang Ma,Hai-Kui Zou,Guang-Wen Chu,Bao-Chang Sun
Removal of catalyst particles from the fluid catalytic cracking (FCC) slurry oil is of crucial significance for its efficient utilization. In this work, the removal of catalyst particles from FCC slurry oil was performed in a stirring tank reactor (STR) and the optimal operating conditions in STR were obtained. Under the optimal operating conditions (900 rpm, 30 min, 95 °C, 24 h, 500 μg/g settling agent), the ash content in the FCC slurry oil treated by the chemical settling can be reduced from 5620 μg/g to 320 μg/g. These results showed that stirring speed, dosage of the settling agent, and mixing time are important to improve the removal efficiency of catalyst particles. Moreover, a rotating packed bed (RPB), as an intensified micromixing device, was employed to intensify the removal of catalyst particles from FCC slurry oil. The ash content in the FCC slurry oil treated by the chemical settling can be reduced from 5620 μg/g to 270 μg/g in RPB under the optimal operating conditions. The removal efficiency of the ash in RPB was increased by 15.6 % with respect to those obtained in STR. This work could provide relevant guidelines to rationally design efficient route for the removal of catalyst particles from FCC slurry oil.
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Surfaces and Interfaces
·
2023
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IF 6.2
Jiayao Zhang,Danni Xue,Huan Liu,Zhao Wei,Chenjie Gu,Shuwen Zeng,Junhui Jiang,Tao Jiang,Xingfei Zhou,Kerong Wu
Attributed to their structure-dependent chemical enhancement capability and perfect biocompatibility, semiconductors have attracted significant concern in surface enhanced Raman scattering (SERS)-based immunoassay. By continually adjusting the size of red phosphorus (RP) in the transition process from bulk to nanosheet, we investigated in detail about the improvement of high-efficient charge transfer (CT) resonance dependent on the perfect energy level matching within the substrate-molecule combination. The nano-sized RP has achieved an impressive three-fold enhancement in SERS intensity in comparison to the RP nanosheet. Furthermore, the RP-based immunosubstrate was combined with MoS 2 nanoflowers-based immunoprobe to construct a sandwich immunostructure for the accurate and efficient diagnostics of cancer marker prostate-specific antigen. A limit of detection as low as 3.99 × 10 −10 M was obtained in the SERS-based immunoassay with reliable specificity. This study presents an innovative approach to promote the SERS performance of semiconductors, which may find potential biological applications in the early screening of cancer.
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npj Science of Food
·
2026
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IF 9.7
Zhou Yunxiao,Lu Yiguang,Xiang Qing,Song Xiaochao,Yang Wei,Zhao Yangfei,Liang Chen,Bai Jian,Cheng Mengyu,Zhang Jianhai
As a widely distributed hazardous substance in agriculture and food, arsenic has become a global public health concern. Riboflavin is known for its anti-inflammatory and antioxidant properties, but whether it mitigates arsenic-induced male reproductive damage remains unclear. To clarify arsenic’s reproductive toxicity, network toxicology was first used to identify potential targets. Subsequently, thirty-six 4-week-old male mice were administered arsenic trioxide (5 mg/L in drinking water) and/or riboflavin (10 mg/kg in diet) for 22 weeks to establish a riboflavin intervention model. Network toxicology identified that arsenic induces male infertility via multiple signaling pathways, such as the TGF-β signaling pathway. In vivo, arsenic diminished sperm quality, caused histopathological damage, and impaired both blood-testis barrier integrity and Sertoli cell proliferation, while riboflavin effectively mitigated these detrimental effects. In vitro, TM4 cell experiments further confirmed that riboflavin reversed arsenic-induced decline in cell viability and cytoskeletal damage. This study is the first to demonstrate that the protective effect of riboflavin is mainly attributed to its ability to mediate the binding of Bmp4 to Bmpr1α, thereby reversing arsenic-induced toxicity, providing a new perspective for exploring riboflavin’s role in alleviating arsenic toxicity.
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Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 47
·16623-16630
·
IF 6.4
Zhicheng Li,Yu Zhang,Zhongbin Pan,Xu Fan,Hao Wang,Peng Li,Haiming Huang,Weiliang Wang,Jinjun Liu,Jiwei Zhai
Flexible dielectric and electronic materials are widely employed in emerging fields. Dielectric energy storage technologies and materials are needed to simultaneously cope with stringent requirements, such as high-stability and compact-size energy storage. Nonetheless, many mainstream polymer dielectrics prematurely fail under the coupling of rising electric field strength and space charge accumulation. Herein, we constructed a one-dimensional core–shell heterogeneous filler (BiFeO3@Al2O3) and added it to wide HOMO–LUMO gap cyanoethyl cellulose, achieving ultrahigh breakdown strength (∼801 MV m−1) and dielectric constant (∼17.3), thus obtaining a substantial discharged energy density of ∼31.3 J cm−3, accompanied by stabilized cyclic charge/discharge of 105. The superior energy storage performance is ascribed to the shell (Al2O3) having a higher work function, forming built-in electric fields with core (BiFeO3), simultaneously decreasing the density of state and increasing the bandgap of nanofibers. This research provides an optimization technique for crafting advanced polymer dielectrics, catering to the evolving demands of modern energy storage applications.
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EUROPEAN POLYMER JOURNAL
·
2023
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IF 6
Jiayi Wang,Yicen Ge,Yue Wang,Rui Sun,Xiao Yang,Haodan Xue,Xiaoyan Ma,Jinyu Liu,Keling Hu
Pd nanoparticles (NPs) supported by micelles formed with poly(2-(dimethylamino)ethyl methacrylate)- b -poly(lauryl methacrylate) (Pd/PDMAEMA- b -PLMA) were prepared and employed as catalyst in the Suzuki-Miyaura cross-coupling reaction of aryl bromides with arylboronic acids in water. Most reactions proceeded with high efficiency at room temperature with only 0.05 mol% Pd loading in the absence of ligands, which afforded the desired functionalized biaryls in 73–98 % yields after 24 h. After reaction, Pd/PDMAEMA- b -PLMA retained in the aqueous phase was easily separated from the insoluble biaryl product and could be further reused two times without significant loss in catalytic efficiency. Characterization of the catalyst disclosed that sub-2 nm Pd NPs were embedded in the hydrophilic corona of polymeric micelles that served as nanoreactors in water.
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SCIENCE OF THE TOTAL ENVIRONMENT
·
2023
·
IF 9.8
Yi Huang,Junxu Wu,Yuetong Lu,Runchao Wang,Yaqiong Lan,Ning Jia
Behavioral changes in zebrafish are an effective early warning system to determine water quality. However, only a few studies have examined the response of zebrafish to non-chemical stimulus after exposure to a contaminant. Therefore, this study investigated the differences in the behavioral responses of zebrafish to acoustic stimuli before and after exposure to cadmium (Cd). Acoustic escape response sensitivity curves were obtained and analyzed, followed by the determination of sensitive stimulus conditions at 100 Hz and 97 dB with a duration of 30 s and an interval of 30 min. Zebrafish exhibit a significant acoustic escape response, which is significantly reduced after exposure to Cd. The results showed that zebrafish stop demonstrating acoustic escape responses when exposed to higher Cd concentrations or longer acoustic exposures. Based on these results, a novel method for detecting abnormal behavior in zebrafish by acoustic stimulation has been proposed, which is expected to reduce the false alarm rate of this type of water quality technology .
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2023
·
IF 2.5
Nie Liu,Zhang Donghuai,Hu Jie,Sun Jian,Lai Changgan,Guo Zhiliang,Wang Helin,Ji Shuai,Lei Lixu
Lead formate (LF) has been successfully prepared from compounds in spent lead-acid batteries by a simple and low-cost method. The irregular sheets of LF pile up to form agglomerated particles. When it is used as an additive in the negative electrode, it makes the electrode perform better and be able to discharge a capacity of 107 mAh g −1 at 100 mA g −1 to 1.75 V; it still discharges 86.5 mAh g −1 after 1200 cycles. EIS shows that the electrode has lower resistance and higher ion diffusion rates than the one without LF. The reason could be that LF produces formic acid when it meets sulfuric acid, and the formic acid could clear up the oxide on lead alloy grid as well as basic lead sulfate in the electrode, thus making the conduction network grow better.
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Materials Today Communications
·
2023
·
IF 3.8
Wei Chen,Fucheng Yun,Shenyi Zheng,Chen Shi,Jian Han
In this study, a simple two-step preparation method was used to prepare a new type of composite fiber adsorbent, metal–organic framework/chitosan/hydroxyapatite (ZIF-8 @CS/HAP), for the efficient removal of Lead ions（Pb(Ⅱ)）from water. The composite fiber was first characterized, and its surface morphology , functional groups, crystallinity, and pore structure were investigated. Subsequently, its optimal use environment was studied, and results found that the adsorbent could achieve the best effect in Pb(Ⅱ) solution with a starting concentration of 200 mg/L at pH ≥ 6 and a temperature of around 298 K. The presence of coexisting ions (Co 2+ , Sr 2+ , Ni 2+ , Cd 2+ , and Cu 2+ ) had no significant effect on the selective removal of Pb(Ⅱ) by ZIF-8 @CS/HAP. The process of ZIF-8 @CS/HAP adsorbing Pb(II) corresponded to the Langmuir model and the pseudo-second-order kinetic model, according to isotherm and kinetic investigations. The adsorption data fitted with the Langmuir model at 298 K reached a fitting degree (R 2 ) of 0.996, and the largest adsorption capacity up to 1058.2 mg/g, which is better than that in most fiber adsorbents. The adsorption mechanism could be attributed to the complexation of hydroxyl and amino groups on the surface of the composite fiber with Pb(Ⅱ), the coprecipitation of phosphate groups with Pb(Ⅱ), ion exchange, and electrostatic adsorption. This study provides an efficient adsorbent for treating Pb(Ⅱ)-contaminated wastewater. Its preparation process is environmental-friendly and easy to use, and it has a high adsorption capacity. Therefore, it has a wide array of potential applications in the field of water treatment.
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JOURNAL OF HAZARDOUS MATERIALS
·
2023
·
IF 13.6
Xiaoying Zhang,Fangfei Cai,Funing Ma,Paul Reimus,Linlin Qi,Di Lu,Mohamad Reza Soltanian,Zhenxue Dai
Colloids play a crucial role in influencing the mobility of radionuclides in high-level radioactive waste repositories. However, the co-transport behavior of radionuclides and colloids in geological media remains insufficiently understood. This study investigated the transport of Strontium (Sr) in four types of granite minerals (quartz, biotite , K-feldspar, and plagioclase) in the presence and absence of Na-bentonite colloids (Na-BC) using column experiments. Employing a stepwise modeling strategy, this study first determined the basic flow and transport parameters through breakthrough curve analysis of the conservative tracer (Br). Then, the experimental data of Sr in the colloid-free Sr transport experiments and Na-BC in the Sr-colloid co-transport experiments were quantitatively explained using a two-site sorption model and a two kinetic sites model, respectively. Finally, the co-transport behavior of Sr and Na-BC was fitted using the colloid-facilitated solute transport model. The stepwise modeling allowed quantification of the kinetics of Sr sorption onto mobile and immobile Na-BC and highlighted the role of straining in Na-BC retention. In the absence of Na-BC, Sr transport experienced the greatest retardation in biotite, followed by plagioclase, K-feldspar, and quartz, respectively, which positively correlated with the specific surface area of the minerals. Moreover, Na-BC enhanced Sr transport with the same retardation order in all tested minerals, with recovery rate increments of 68.61%, 19.21%, 6.67%, and 4.33%, respectively. The transport of Sr in K-feldspar was found to be less affected by Na-BC compared to the other tested minerals, likely due to the strong cation exchange capacity of K + among the cation components of minerals, making hydrated K + more likely to exchange with Sr 2+ on K-feldspar surfaces. These findings hold significant implications for assessing the risks associated with the transport of radionuclides in deep geological repositories.
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Scientific Reports
·
2023
·Vol. 13
·期 1
·1-14
·
IF 4.6
Du Fu,Liu Liping,Pan Yong,Wu Chuang,Wang Ronghao,Zhao Zeyu,Fan Wenpeng,Song Hao,Shi Youzhi,Wang Jian
A novel composite hydrogel (AM/CMC/B) synthesized from peanut shell biochar effectively adsorbs heavy metal Cd in water and reduces its toxicity to tobacco seedlings. The hydrogel, prepared via hydrothermal polymerization using acrylamide (AM), carboxymethyl cellulose (CMC), and peanut shell biochar (B), exhibited a maximum adsorption capacity of 164.83 mg g −1 for Cd 2+ and followed a pseudo-second-order kinetic model. In pot experiments, the application of exogenous AM/CMC/B mitigated the inhibitory effects of Cd-contaminated soil on tobacco seedling growth. Addition of 10 mg kg −1 Cd resulted in improved phenotype, root system development, enhanced photosynthetic capacity, stomatal conductance (Gs), stomatal number, and increased antioxidant activity while reducing MDA content and leaf cell death. These findings highlight the potential of AM/CMC/B as an environmentally friendly adsorbent for Cd removal from water and for reducing Cd stress toxicity in tobacco and other plants.
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