ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 35
·83545-83557
·
IF 5.8
Xiong Yehan,Zhou Ting,Bao Jianguo,Du Jiangkun,Faheem Muhammad,Luo Liting
Fenton-like oxidation processes are widely used to degrade recalcitrant organic pollutants, but are limited by narrow application pH and low reaction efficiency. This study investigated the synchronous activation of H 2 O 2 and persulfate (PDS) by sulfidated zero valent iron (S-nZVI) in ambient conditions for Fenton-like oxidation of bisphenol S (BPS), an estrogenic endocrine-disrupting chemical. The activation of S-nZVI induced H 2 O 2 or PDS could be greatly enhanced with the assistance of PDS and H 2 O 2 , respectively, even across a wide range of pH value (3–11). The first-order rate constant of S-nZVI/H 2 O 2 /PDS, S-nZVI/PDS and S-nZVI/H 2 O 2 systems was found to be 0.2766 min −1 , 0.0436 min −1 , and 0.0113 min −1 , respectively. A significant synergy between H 2 O 2 and PDS was achieved when the PDS-H 2 O 2 molar ratio was above 1:1, and where sulfidation promoted iron corrosion and decreased solution pH were observed in the S-nZVI/H 2 O 2 /PDS system. Radical scavenging experiments and electron paramagnetic resonance (EPR) investigations suggest that both SO 4 •− and • OH were generated and that • OH played a crucial role in BPS removal. Furthermore, four BPS degradation intermediates were detected and three degradation pathways were proposed in line with the HPLC-Q-TOF–MS analysis. This study demonstrated that compared to the traditional Fenton-like system, the S-nZVI/H 2 O 2 /PDS system could be a more efficient, advanced oxidation technology capable of being used across a broad pH range for emerging pollutants’ degradation.
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ENVIRONMENTAL TOXICOLOGY
·
2023
·
IF 4.5
Peipei Pan,Zina Wen,Feifei Ma,Zhen Lei,Chengshuang Pan,Qianjin Fei,Erpo Tian,Yiyan Wang,Qiqi Zhu,Huitao Li,Xiaoheng Li,Ying Zhong,Ren-Shan Ge,Ren-ai Xu
Bisphenol S (BPS) is a novel bisphenol A (BPA) analogue, a ubiquitous environmental pollutant that disrupts male reproductive system. Whether BPS affects Leydig cell maturation in male puberty remains unclear. Male Sprague–Dawley rats (age of 35 days) were daily gavaged to 0, 1, 10, 100, and 200 mg/kg/day from postnatal days 35–56. BPS at 1–10 mg/kg/day and higher doses markedly reduced serum testosterone and progesterone levels but it at 200 mg/kg/day significantly increased estradiol level. BPS at 100 and 200 mg/kg/day significantly elevated serum luteinizing hormone (LH) levels. BPS at 1–10 mg/kg/day and higher doses significantly reduced inhibin A and inhibin B levels. BPS at 100 and 200 mg/kg/day markedly increased CYP11A1 + Leydig cell number, but did not affect HSD11B1 + (a mature Leydig cell marker) cell number. BPS at 10 mg/kg/day and higher doses significantly downregulated the expression of Cyp11a1 and at 100 and 200 mg/kg/d significantly lowered Cyp17a1 , Hsd11b1 , and Nr5a1 in the testes. BPS at 100 and/or 200 mg/kg/day significantly elevated Lhb in the pituitary. BPS at 100 and 200 mg/kg/day significantly increased the phosphorylation of AKT1, AKT2, and CREB without affecting total AKT1, AKT2, and CREB levels. BPS at 1–100 μM significantly suppressed testosterone production and induced proliferation of primary immature Leydig cells after 24 h of treatment and these actions were reversed by estrogen receptor α antagonist, ICI 182780, and partially reversed by vitamin E. BPS at 0.1–10 μM significantly increased oxidative stress of Leydig cells in vitro. BPS also directly inhibited 17β-hydroxysteroid dehydrogenase 3 activity at 10–100 μM. In conclusion, BPS causes hypergonadotropic androgen deficiency in male rats during pubertal exposure via activating ESR1 and inducing ROS in immature Leydig cells and directly inhibiting 17β-hydroxysteroid dehydrogenase 3 activity.
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EUROPEAN POLYMER JOURNAL
·
2023
·
IF 6
Juan He,Yongliang Ding,Feng Jiang,Zhongkai Wang
Poly(ester amide)s (PEAs) are heterochain polymers consisting of repetitive ester and amide bonds. The development of PEAs derived from renewable biomass has attracted tremendous attention owing to their fascinating applications. In this work, plant oil derived 21-carbon dicarboxylic acid (C21DA) was utilized to achieve high-performance sustainable PEAs with excellent reprocessability. The presence of hydrogen bonding formed by ester, amide, and carboxyl groups can endow PEAs with strong cohesion and interfacial adhesion, which provides great opportunities for PEAs in hot melt adhesive applications. The mechanical properties of PEAs can be systematically manipulated by adjusting the compositions and cross-linking densities. These PEAs are thermally stable and possess extraordinary adhesion behavior, especially under low temperatures. Impressively, such a kind of PEAs shows outstanding tolerance even in liquid nitrogen (-196 °C). The combination of renewable low-value plant oil and PEAs can offer new avenues for designing novel bio-based reusable low-temperature tolerant adhesives.
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Journal of Composites Science
·
2023
·Vol. 7
·期 7
·280
·
IF 3.3
Ge-Ge Zheng,Xin Lin,Zhen-Xing Wen,Yu-Hao Ding,Rui-Hui Yun,Gaurav Sharma,Amit Kumar,Florian J. Stadler
Photocatalytic degradation plays a crucial role in wastewater treatment, and the key to achieving high efficiency is to develop photocatalytic systems that possess excellent light absorption, carrier separation efficiency, and surface-active sites. Among various photocatalytic systems, S-type heterojunctions have shown remarkable potential for efficient degradation. This work delves into the construction of S-type heterojunctions of ternary indium metal sulfide and bismuth ferrite nanofibers with the introduction of sulfur vacancy defects and morphology modifications to enhance the photocatalytic degradation performance. Through the impregnation method, BiFeO3/ZnIn2S4heterojunction materials were synthesized and optimized. The 30% BiFeO3/ZnIn2S4heterojunction exhibited superior photocatalytic performance with higher sulfur vacancy concentration than ZnIn2S4. The in-situ XPS results demonstrate that the electrons between ZnIn2S4and BFO are transferred via the S-Scheme, and after modification, ZnIn2S4has a more favorable surface morphology for electron transport, and its flower-like structure interacts with the nanofibers of BFO, which has a further enhancement of the reaction efficiency for degrading pollutants. This exceptional material demonstrated a remarkable 99% degradation of Evans blue within 45 min and a significant 68% degradation of ciprofloxacin within 90 min. This work provides a feasible idea for developing photocatalysts to deal with the problem of polluted water resources under practical conditions.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Ning Shao,Juan Li,Shenglei Che,Jingwu Zheng,Liang Qiao,Yao Ying,Jing Yu,Wangchang Li
The L -band and S-band electromagnetic waves are widely utilized in radar and satellite communications. This paper reports the successful synthesis of 85.8% content Ba 3 Co 2 Fe 24 O 41 (Co 2 Z) at a relatively low temperature of 1150 °C using the solid-phase method with BaFe 12 O 19 (BaM) and Ba 2 Co 2 Fe 12 O 22 (Co 2 Y) as precursors. The Co 2 Z samples were confirmed to have been successfully synthesized using X-ray diffraction (XRD) and thermogravimetry/differential scanning calorimetry (TG-DSC) spectra. Scanning electron microscopy (SEM) images revealed that the sintered samples exhibited large grains (>10 µm). Vibrating-sample magnetometry (VSM) data indicated that the synthesized Co 2 Z samples possessed distinct soft magnetic properties . X-ray photoelectron spectroscopy (XPS) results showed that the Fe 3+ content decreased with the increase in synthesis temperature. The samples synthesized at 1110 °C − 1280 °C had a permeability of 10–20, a cut-off frequency of approximately 1 GHz, and a dielectric constant of 10–30. When the thickness of the sample synthesized at 1150 °C was 3.9 mm, the frequency range of the reflection loss (RL)< −10 dB was 2.55 GHz (0.98–3.53 GHz), with 1.77 GHz as the center frequency, and RLmin was − 57.8 dB. This observation indicates that the effective absorption bandwidth of the samples covers the entire L and S bands, which significantly satisfies practical applications within the military and civilian sectors.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Lang Pei,Zhenggang Luo,Xusheng Wang,Zhanfeng Ma,Yuhang Nie,Jiasong Zhong,Ding Yang,Sateesh Bandaru,Bao-Lian Su
The conversion of CO 2 into syngas , a mixture of CO and H 2 , via photocatalytic reduction , is a promising approach towards achieving a sustainable carbon economy. However, the evolution of highly adjustable syngas, particularly without the use of sacrifice reagents or additional cocatalysts, remains a significant challenge. In this study, a step-scheme (S-scheme) 0D ZnGa 2 O 4 nanodots (∼7 nm) rooted g-C 3 N 4 nanosheets (denoted as ZnGa 2 O 4 /C 3 N 4 ) heterojunction photocatalyst was synthesized vis a facial in-situ growth strategy for efficient CO 2 -to-syngas conversion. Both experimental and theoretical studies have demonstrated that the polymeric nature of g-C 3 N 4 and highly distributed ZnGa 2 O 4 nanodots synergistically contribute to a strong interaction between metal oxide and C 3 N 4 support. Furthermore, the desirable S-scheme heterojunction in ZnGa 2 O 4 /C 3 N 4 efficiently promotes charge separation, enabling strong photoredox ability. As a result, the S-scheme ZnGa 2 O 4 /C 3 N 4 exhibited remarkable activity and selectivity in photochemical conversion of CO 2 into syngas, with a syngas production rate of up to 103.3 μ mol g −1 h −1 , even in the absence of sacrificial agents and cocatalyst. Impressively, the CO/H 2 ratio of syngas can be tunable within a wide range from 1:4 to 2:1. This work exemplifies the effectiveness of a meticulously designed S-scheme heterojunction photocatalyst for CO 2 -to-syngas conversion with adjustable composition , thus paving the way for new possibilities in sustainable energy conversion and utilization.
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CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yulong Yuan,Minghua Nie,Caixia Yan,Leliang Wu,Wenbo Dong,Mingjun Ding,Peng Wang
This study investigated for the first time the potential of the novel combination of peroxymonosulfate (PMS) and carbonate (CO 3 2− ) toward bisphenol S (BPS) under solar light irradiation. Compared with the Na 2 CO 3 /PMS and solar/PMS system, the solar/Na 2 CO 3 /PMS system significantly reduces the time required for the degradation of BPS. The excellent removal performance is possible due to the synergistic effect between enhanced light absorption and PMS activation, which accelerated the decomposition of PMS to generate more reactive oxygen species. Scavenging tests and electron paramagnetic resonance analysis revealed that the singlet oxygen ( 1 O 2 ) was the dominant oxidant formed and contributed to BPS elimination with a small proportion of superoxide anion radical (O 2 •– ), rather than sulfate radical (SO 4 •− ) and hydroxyl radical (HO•). The addition of Cl − could promote the degradation of BPS, but the addition of HA and a higher HCO 3 − concentration inhibited this process. The presence of SO 4 2− and NO 3 − slightly promote the degradation of BPS. Besides, the solar/Na 2 CO 3 /PMS system represented significant degradation efficiency in a wide initial pH range (5.02–10.96). Such a system is favorable for the application in actual water matrices such as domestic wastewater, river water, lake water, and tap water. Meanwhile, based on the intermediates identified, the possible degradation pathways of BPS were proposed. In addition, most of the degradation intermediates of BPS were less toxic to different organisms than the parent compound. Moreover, the highly efficient degradation of several typical organic contaminants was also achieved using the solar/Na 2 CO 3 /PMS system under simulated and natural solar light irradiation. This study provides a novel idea and demonstrates the great potential for the elimination of organic pollutants in water.
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ACS Applied Nano Materials
·
2022
·
IF 6.14
Tao Xian,Hongqin Li,Xiaofeng Sun,Yashan Huo,Lijing Di,Chenyang Sun,Hua Yang
The In2O3 nanoparticles were homogeneously attached on the BiOBr nanoplate surface to obtain S-scheme In2O3/BiOBr heterojunction photocatalysts by a hydrothermal route. The purity, crystal structure, chemical state, morphology, light absorption property, and photogenerated charge behavior of composites were investigated by XRD, SEM, TEM, HRTEM, XPS, UV–vis DRS, PL, ESR, and electrochemical tests. The removal of dyes (acid orange 7 (AO7), acid orange 10 (AO10), and rhodamine B (RhB)) and Cr(VI) was employed to evaluate the photocatalytic performance of In2O3/BiOBr composites irradiated by simulated sunlight. The results indicate that the photocatalytic performance of BiOBr can be remarkably promoted after the decoration of In2O3 nanoparticles, and the best photocatalytic activity was achieved over an 8% In2O3/BiOBr sample. The 8% In2O3/BiOBr sample also indicates outstanding synergistic photocatalytic performance for the removal of the heavy metal ion/dye mixture (AO7/Cr(VI) and RhB/Cr(VI)). It is found that the decoration of In2O3 nanoparticles can accelerate the transfer and separation of photoinduced electrons and holes in BiOBr nanoplates. The energy band structure, work function, and Fermi level of BiOBr and In2O3 were computed through the density functional theory calculation. Based on the above investigation, the photocatalytic mechanism of the S-scheme In2O3/BiOBr composite was discussed.
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Frontiers in Chemistry
·
2022
·
IF 5.545
Yan Long,Wang Xianjie,Wang Yufei,Li Jian,Liu Qianqian,Zhong Xiang,Chang Yuan,Li Qingchao,Verma Santosh Kumar
Contamination of phenolic compounds has devastating effects on the environment. Therefore, its harmless treatment and recycling have received extensive attention. Herein, a novel method for preparing N-S doped phenolic resin (NSPR) from phenols, N and S groups in semi-coking wastewater, and formaldehyde are developed. The KOH is consequently incorporated into the NSPR through simultaneous carbonization and activation in a single step to produce porous carbon material (NSPC). The as-obtained NSPC exhibits a high specific capacitance of 182 F g−1 at 0.5 A g−1, a high energy density of 9.1 Wh kg−1 at a power density of 0.15 kW kg−1, and remarkable cycling stability in aqueous KOH electrolyte. This outstanding electrochemical performance is attributed to its ultrahigh specific surface area (SSA, 2,523 m2 g−1), enormous total pore volume (Vt, 1.30 cm3 g−1), rational pore structure, and N-S heteroatom self-doping (0.76 at% N and 0.914 at% S), which ensures adequate charge storage, rapid electrolyte ion diffusion, and contributed pseudo-capacitance. This work not only provides a facile method for transforming phenolic wastewater into high-value products but also offers a cost-effective and high-performance porous carbon material for supercapacitors.
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Cells
·
2022
·Vol. 11
·期 18
·2927
·
IF 7.666
Dewei He,Yanting Liu,Jie Li,Hefei Wang,Bojian Ye,Yuan He,Zhe Li,Xiyu Gao,Shoupeng Fu,Dianfeng Liu
Parkinson’s disease (PD) is a neurodegenerative disease in which neuronal apoptosis and associated inflammation are involved in its pathogenesis. However, there is still no specific treatment that can stop PD progression. Isoalantolactone (IAL) plays a role in many inflammation-related diseases. However, its effect and mechanism in PD remain unclear. In this study, results showed that IAL administration ameliorated 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP)-induced PD-related pathological impairment and decreased motor activity in mice. Results from in vitro mechanistic studies showed that IAL regulated apoptosis-related proteins by activating the AKT/Nrf2 pathway, thereby suppressing the apoptosis of SN4741 cells induced by N-methyl-4-phenylpyridinium Iodide (MPP+). On the other hand, IAL inhibited LPS-induced release of pro-inflammatory mediators in BV2 cells by activating the AKT/Nrf2/HO-1 pathway and inhibiting the NF-κB pathway. In addition, IAL protected SN4741 from microglial activation-mediated neurotoxicity. Taken together, these results highlight the beneficial role of IAL as a novel therapy and potential PD drug due to its pharmacological profile.Keywords:isoalantolactone;PD;neuro-protection;neuro-inflammation;apoptosis
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JOURNAL OF POLYMER RESEARCH
·
2022
·Vol. 29
·期 11
·1-13
·
IF 3.061
Xu Jingmei,Meng Lingxin,Shi Qingyuan,Ren Qiang,Wang Zhe
In this study, sulfonated poly (ether ketone sulfone)s polymers with long sulfonic acid alkyl side chains and amino groups were prepared by free radical and polycondensation reaction. Poly (ether ketone)s with carboxyl groups were used for macromolecule crosslinking agent to prepare cross-linked membranes by amidation reaction. This series of membranes were characterized by FT-IR and 1 H NMR. Meanwhile, cross-linked composite membranes possessed excellent mechanical properties, methanol resistance performance and thermal stability. The highest proton conductivity of 0.096 S cm −1 was observed for APD-3/CP at 80 °C. The range of methanol permeation coefficients for the prepared membranes (2.89 × 10 −7 cm 2 s −1 —4.95 × 10 −7 cm 2 s −1 ) was far lower as compared to that of Nafion 117 (24.1 × 10 −7 cm 2 s −1 ). The results of morphology, swelling ratio and proton conductivity showed that the hydrophilic-hydrophobic phase separation structure effectively improved the properties of the membrane namely water uptake, dimensional stability and proton conductivity. Long-side chains functionalized cross-linked sulfonated poly (ether ketone sulfone)s proton exchange membranes had good candidate for application in fuel cells.
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CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Weijie Yang,Kailong Sun,Jun Wan,Yang-Ai Ma,Yu Wang,Lin Liu,Bicheng Zhu,Feng Fu
Solar-driven activation of molecular oxygen (O 2 ) offers an appealing strategy to realize aerobic oxidation catalysis at room temperature, while the efficiency of photocatalytic O 2 activation is severely limited by lacking O 2 adsorption sites and poor carrier utilization. Herein, an efficient Ni 2 P/Bi 3 O 4 Br-OVs heterojunction is firstly proposed to overcome the limitation by the dual-site design of oxygen vacancies (OVs) and on Ni 2 P cocatalyst. By the joint observations from spectroscopic measurements and theoretical simulations, the introduction of OVs and Ni 2 P on Bi 3 O 4 Br nanosheets can not only optimize the light absorption, facilitate the separation and transfer of photogenerated charge carrier through the S-scheme mechanism, but also provide active sites for effective adsorption and activation of oxygen molecules, thereby contributing to highly efficient generation of •O 2 − radicals. Benefiting from the more oxidative active species of •O 2 − and h + , the Ni 2 P/Bi 3 O 4 Br-OVs photocatalyst achieves near-unity conversion rate and selectivity in aerobic oxidation of sulfide to sulfoxide, and it also exhibits outstanding photoactivity in the aerobic degradation of phenolic pollutants under visible light. This study showcases a feasible O 2 activation approach by defect and heterojunction engineering, and provides a new perspective for designing high-performance photocatalysts in the field of aerobic oxidation catalysis.
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