DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.1
Shifeng Ji,Zhuo Li,Yunqing Xing,Nan Yao,Yingjie Zhang,Changbing Ye,Guohua Wang,Maogang Hu,Chunmei Gao
Heterojunction-structured graphitic carbon nitride@bismuth oxyiodide (g-C 3 N 4 @BiOI) nanocomposites were successfully synthesized via a facile solvothermal method. The as-prepared composites were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and UV–visible diffuse reflectance spectroscopy (UV–vis DRS) to elucidate their microstructure, chemical composition, and optical properties. Subsequently, a highly efficient UV/g-C₃N₄@BiOI/H₂O₂ photocatalytic system was developed for the rapid degradation of diethylenetriamine (DETA). Under optimal conditions (initial pH 10.3, 0.4 mL/L H₂O₂, and 0.06 g/L 50 wt% g-C₃N₄@BiOI), the system achieved 95% DETA removal within 30 min under UV irradiation. Notably, cyclic degradation tests coupled with post-characterization revealed the exceptional stability and reusability of the g-C₃N₄@BiOI nanocomposite. Mechanistic studies through radical quenching experiments and electron paramagnetic resonance (EPR) spectroscopy confirmed •OH as the primary reactive species. Furthermore, the degradation pathways were elucidated by combining Gaussian 09 W theoretical calculations with gas chromatography–mass spectrometry (GC–MS) analysis. Finally, the toxicity evaluation model was established by toxicity evaluation software, and the experiments of mung bean germination and zebra fish egg incubation verified the effective detoxification of DETA solution after photocatalytic treatment.
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高影响因子
CURRENT PHARMACEUTICAL BIOTECHNOLOGY
·
2021
·Vol. 22
·期 5
·609-621
·
IF 2.837
Zheng Jing,Changyuan Wang,Shijie Wen,Yue Jin,Qiang Meng,Qi Liu,Jingjing Wu,Huijun Sun,Mozhen Liu
Background: Osteoporosis, characterized by bone loss, usually occurs with the increased bone resorption and decreased bone formation. H2O2-induced MC3T3-E1 cells are commonly used for the study of osteoblastic activities, which play a crucial role in bone formation. Objective: This study aimed to investigate the effects of Phosphocreatine (PCr) on the osteoblastic activities in H2O2-induced MC3T3-E1 cells and elaborate on the possible molecular mechanism. Methods: The Osteoprotegerin (OPG)/Receptor Activator of NF-ΚB Ligand (RANKL) ratio and osteogenic markers were detected to investigate the effects of PCr on osteoblastic activities, and the osteoblastic apoptosis was detected using Hochest staining. Moreover, oxidative stress, Adenosine Triphosphate (ATP) generation and the expression of Sirtuin 1 (SIRT1), Forkhead Box O 1 (FOXO1) and Peroxisome Proliferator-Activated Receptor Γ Coactivator-1α (PGC-1α) were also examined to uncover the possible molecular mechanism in H2O2-induced MC3T3-E1 cells. Result: The results showed that PCr promoted the osteoblastic differentiation by increasing the expression levels of osteogenic markers of Alkaline Phosphatase (ALP) and Runt-related transcription factor 2 (Runx2), as well as increased the OPG/RANKL ratio and suppressed the osteoblastic apoptosis in H2O2-induced MC3T3-E1 cells. Moreover, treatment with PCr suppressed reactive oxygen species (ROS) over-generation and promoted the ATP production as well as increased the PGC-1α, FOXO1 and SIRT1 protein expression levels in H2O2-induced MC3T3-E1 cells. Conclusion: PCr treatment could promote osteoblastic activities via suppressing oxidative stress and increasing the ATP generation in H2O2-induced MC3T3-E1 cells. In addition, the positive effects of PCr on osteoblasts might be regulated by SIRT1/FOXO1/ PGC-1α signaling pathway.
研究领域:
医学
·
分子生物学
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高影响因子
WATER SCIENCE AND TECHNOLOGY
·
2016
·Vol. 73
·期 11
·2747-2753
·
IF 1.064
Kong Wusong,Qu Hongxia,Chen Peng,Ma Weihua,Xie Huifang
In this study, Cu 2 O-CuO/ZSM-5 nanocomposite was synthesized by the impregnation method, and its catalytic performance for the destruction of AO7 in aqueous solutions was investigated. The morphology, structure and surface element valence state of Cu 2 O-CuO/ZSM-5 were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The operating conditions on the degradation of AO7 by Cu 2 O-CuO/ZSM-5, such as initial pH values, concentration of AO7 and catalyst dosage were investigated and optimized. The results showed that the sample had good catalytic activity for destruction of AO7 in the absence of a sacrificial agent (e.g. H 2 O 2 ): it could degrade 91% AO7 in 140 min at 25 °C and was not restricted by the initial pH of the AO7 aqueous solutions. Cu 2 O-CuO/ZSM-5 exhibited stable catalytic activity with little loss after three successive runs. The total organic carbon and chemical oxygen demand removal efficiencies increased rapidly to 69.36% and 67.3% after 120 min of treatment by Cu 2 O-CuO/ZSM-5, respectively.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2011
·
IF 3.723
Hui Wang,Yuming Huang
Prussian-blue (PB)-modified γ-Fe 2 O 3 magnetic nanoparticles (PBMNPs) were successfully synthesized based on electric interactions between negatively charged [Fe(CN) 6 ] 4− and positively charged γ-Fe 2 O 3 nanoparticles. The in situ PB coating was generated by the coordinating reaction between the adsorbed [Fe(CN) 6 ] 4− and the ferric ions on the surface of γ-Fe 2 O 3 NPs. The as-prepared PBMNPs were characterized by FT-IR, XRD, TEM, and used to remove organic pollutants from aqueous solution, namely, using methylene blue (MB) as model compound. The experimental results showed that the target compound could be removed efficiently from solution over a wide pH range from 3 to 10 in the presence of PBMNPs as peroxidase-like catalyst and H 2 O 2 as oxidant. Under optimal conditions, MB could be removed completely after 120 min of reaction at 298 K; the chemical oxygen demand (COD) removal efficiency and the total organic carbon (TOC) abatement efficiency were 53.6% and 35%, respectively. Furthermore, the PBMNPs catalysts showed high magnetization, temperature tolerance, long-term storage and operational stability, and they could be readily separated from solution by applying an external magnetic field. Finally, a possible reaction mechanism for MB degradation was also discussed.
研究领域:
环境科学
·
纳米材料学
·
催化化学
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水处理技术
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环境功能材料
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
·
IF 4.7
Ruxue Ma,Yi Xiong,Fuyou Wang,Zhihao Chen,Xinxin Guan,Xiucheng Zheng
Graphitic carbon nitride (g-C 3 N 4 , CN) is promising in boosting H 2 O 2 photosynthesis at present, but facing huge challenges due to the limitations of common CN (e.g. small specific surface area, low absorption coefficient, and fast recombination of photoinduced carriers). To overcome these drawbacks, herein, the novel type-II heterojunctions are successfully constructed from hexagonal boron nitride (h-BN, abbreviated as BN), melamine, and KCl with the one-pot calcination method. The molten salt effect of KCl and the hard template effect of BN optimize the interlayer spacing, porosity and structural uniformity of CN, thus optimizing the adsorption and photocatalytic properties. Moreover, the constructed heterostructure between BN and modified CN further favors the photoinduced charge transfer. Hence, the resulting composites afford exciting photocatalytic H 2 O 2 synthesis performance. Particularly, catalyzed by MCN/BN-2, the H 2 O 2 production rate is separately 1515.05 μmol g −1 h −1 and 3382.17 μmol g −1 h −1 irradiated by visible light and the simulated solar light, which are significantly higher than those over MCN, BN, and most of CN-based materials previously reported. The results of band potential analyses, relevant radical scavenging experiments, as well as electron paramagnetic resonance measurements verify that the photocatalytic H 2 O 2 production over MCN/BN-2 by using 10 vol% EtOH solution is predominantly through the two-step single-electron oxygen reduction reaction (ORR) process. Also, the one-step two-electron ORR involves in H 2 O 2 formation. This work not only develops a novel broad-spectrum responsive metal-free photocatalyst, but also enriches the deep understanding of the roles played by molten salt engineering and heterostructure in photocatalysis.
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高影响因子
Nanoscale
·
2026
·
IF 5.2
Dan Zhang,Lu Zhang,Xiaodong Ma,Zhiyuan Chen,Tinggang Ma,Ye Wang,Wenxiang Tang
Carbon nitride (CN), a promising polymeric semiconductor and photocatalyst, exhibits photocatalytic activity that is notably influenced by the synthesis temperature. In this work, a series of I, K co-doped carbon nitrides (KICNT) were fabricated under various pyrolysis temperature (450, 500, 550, 600 and 650 °C) conditions and an N2 atmosphere, which were then subsequently applied to catalytic hydrogen peroxide (H2O2) production and tetracycline (TC) degradation. Both oxygen adsorption capacity and photocatalytic activity exhibited an initial increase followed by a decline with rising pyrolysis temperature. The KICN600 sample simultaneously exhibits the highest photocatalytic activity for both H2O2 production and photodegradation capability for TC. KICN600 achieved a H2O2 yield of 4382.1 μmol L−1 via a two-step oxygen reduction process in air after 2 h and 11 013.8 μmol L−1 under an oxygen atmosphere and visible light irradiation. Furthermore, the TC degradation over this state-of-the-art KICN600 photocatalyst can reach 83.9% within only 2 h under ambient air conditions. The characterizations results showed that the exceptional photocatalytic activity of KICN600 can be attributed to the high concentration of K-bridged channels and abundant carbon vacancies. These structural features collectively enhance the oxygen reduction capability and charge carrier separation efficiency.
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PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Yanli Li,Feng Cao,Xiaoyu Deng,Jun Li,Zhouyu Wang,Xiaoqi Yu
The analysis of nutritional components in food samples is complicated by the presence of structurally and functionally similar antioxidants. To address this challenge, fluorescent-colorimetric dual-mode sensor arrays have emerged as a promising solution. In this work, we successfully developed oxidase-like carbon dots (Fe-CDs) through a straightforward Fe-surface modification approach. The Fe sites in Fe-CDs, coordinated with oxygen, lower the activation energy for oxidase catalytic reactions, significantly enhancing the oxidase-like activity. Building on this, a novel H 2 O 2 -independent colorimetric-fluorescent sensor array was constructed for selectively identifying and quantifying total antioxidant capacity (TAC) in both food and biological samples. The system successfully discriminated TAC levels among five common fruit juices and further extended its application to in vitro analysis for distinguishing between normal, senescent, and cancerous cells. At the same time, Fe-CDs demonstrated excellent accuracy performance in detecting ascorbic acid TAC in fruit juice based on colorimetric-fluorescent methods, with detection limits of 0.9 μM and 1.8 μM as well as linear ranges of 2.5–60 μM and 5–100 μM, respectively. This study not only highlighted the development and applications of novel oxidase-like carbon dots but also showed the potential of advancing food nutrition assessment and safety monitoring.
研究领域:
食品科学与技术
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分析化学
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纳米材料
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生物传感器
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营养分析
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DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·Vol. 13
·期 6
·120354
·
IF 7.2
Dan Dang,Xinyi Jiang,Juncheng Zhang,Yichao Wu,Baoxin Zha,Yingying Zhao
The valorization of crude glycerol, a major byproduct of biodiesel production, into high-value chemicals is critical for sustainable biorefineries. Herein, we report a novel alkali-free and homogeneous photocatalytic strategy for selectively converting glycerol to glycolic acid (GLYA) and formic acid (FA) using H 2 O 2 as a radical initiator under 365 nm UV irradiation. By optimizing volume fraction of H 2 O 2 (3.18％), light intensity (10 W), and temperature (35 °C), 99.3 % glycerol conversion with 23.47 % GLYA yield and 22.66 % FA yield was achieved within 2 h at ambient pressure. Crucially, scavenging experiments, post-illumination reactivity studies and the electron paramagnetic resonance (EPR) spectra revealed a synergistic •OH /•O 2 ⁻/ 1 O 2 radical cycle triggered by H 2 O 2 photolysis: (1) •OH initiates glycerol oxidation to glyceraldehyde; (2) •O 2 ⁻ (generated from O 2 reduction or H 2 O 2 decomposition) produces 1 O 2, which drives selective C-C cleavage to GLYA; (3) •OH/•O 2 ⁻/ 1 O 2 cycle enables mutual regeneration of active species, sustaining oxidation even after light cessation. This autocatalytic cycle eliminates the need for strong bases or noble metals, offering a green, energy-efficient route for glycerol upcycling.
研究领域:
催化化学
·
绿色化学
·
可再生能源
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环境科学
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化学工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Chunmu Wang,Chenxi Pang,Jiahua Lu,Jie Zhu,Jujun Ruan
Decapsulation is the first step of recycling waste crystalline silicon photovoltaic (PV) panels. Nowadays, wet decapsulation has been a mainstream decapsulation method. It delivers high-purity decapsulation products and enables full-component recycling of laminates. However, current wet decapsulation technologies suffer from several limitations, including excessively high solvent concentrations and significant environmental risks. Moreover, critical issues such as ineffective decapsulation at low solvent concentrations, undefined waste liquid treatment methods, and uncontrollable decapsulation effect remain to be resolved. In order to solve these problems, this study used p-toluene sulfonic acid (PTSA) and hydrogen peroxide (H 2 O 2 ) to strengthen terpinolene efficiently decapsulating waste crystalline silicon PV laminates. PTSA and H₂O₂ were shown to strengthen terpinolene's decapsulation efficiency, achieving 100 % decapsulation rates even at low terpinolene concentrations. A positive correlation was observed between terpinolene concentration and the degree of silicon layer fragmentation. This paper analyzed the characteristics of the decapsulated waste liquid, such as high calorific value and low metal dissolution capacity. The feasibility of waste liquid combustion treatment was evaluated for the first time from the perspective of environmental impact. Meanwhile, the mechanism by which auxiliary reagents (PTSA and H 2 O 2 ) work in synergy to strengthen the decapsulation of terpinolene was deeply analyzed: PTSA provided acidic conditions, and H 2 O 2 act as a free radical initiator. The two worked together to activate terpinolene to generate more terpinolene free radicals (Terp·). Terp· attacked the main chain and bridging of ethylene-vinyl acetate polymer (EVA), leading to chain breaks and the decapsulation effect. This research provides a theoretical basis for the wet decapsulation of waste crystalline silicon PV laminates, links laboratory innovation with practical application, and offers a sustainable approach for industrial-scale PV recycling. Synopsis The synergistic effect of PTSA and H 2 O 2 strengthens the terpinolene to completely decapsulate the waste crystalline silicon photovoltaic laminates.
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高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Ying Tao,Jiatong Ni,Li Yang,Zhengya Yue,Yue Meng,Neda Anastassova,Tiedong Sun,Lei Wang
Chemodynamic therapy (CDT) is a tumor treatment that converts endogenous H2O2 into toxic reactive oxygen species (ROS) via Fenton or Fenton-like reactants. It has received much attention because it does not require external energy and has few side effects. However, the therapeutic efficiency of CDT is inhibited by the insufficient supply of H2O2 inside the tumor, thus making it difficult to achieve a satisfactory therapeutic effect. Herein, we designed and synthesized an ascorbic acid (AA)-loaded polyoxometalate-based metal–organic framework nanocomposite (NENU-5) with Mo and Cu ions for Fenton-like reaction centers. On the one hand, AA converts O2 to H2O2 in vivo to facilitate enhanced ROS production and accelerates the reaction rate of reducing Mo6+ and Cu2+ in cells; on the other hand, the reduced Mo5+ and Cu+ in NENU-5 activate Fenton-like reactions. Therefore, NENU-5@AA nanocomposites exhibit a significant inhibitory effect on the tumor cells. Hence, this work effectively addresses the challenges of insufficient H2O2 supply and poor Fenton-like agent regeneration in the tumor microenvironment, thus providing a promising strategy for self-enhanced CDT with potential for clinical applications.
研究领域:
癌症治疗
·
纳米医学
·
活性氧
·
无机化学
·
生物医学工程
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Yuxuan Tian,Yaming Qi,Hongjing Han,Xinzhan Luo,Junyao Guan,Sijia Chen,Haiying Wang,Yanguang Chen,Xuzhong Gong
Tight oil is an important unconventional oil resource, but it is difficult to separate oil and water from produced liquid and make efficient use of it. Due to the stable structure of oil–water interface caused by resin, it is difficult to achieve demulsification. In this work, a series of polyether ester demulsifierswith different degree of polymerization were designed by esterification and polymerization. In addition, hydrogen peroxide was used to regulate the structure of resin to enhance the transmission of polyether ester, and the replacement of resin was strengthened through the structural design of polyether ester. The results showed that the molecular weight and dipole moment of resin oxidized by hydrogen peroxide decreased, which was beneficial to the transfer of demulsifier. With the increase of polymerization degree, the oil solubility and surface activity of polyether ester were improved, and the replacement ability of resin was strengthened·H 2 O 2 and demulsifier were used to synergistically promote demulsification, the dehydration rate could be further increased to 99.2%, and the water content in tight oil could be reduced to 0.56%.
研究领域:
化学工程
·
石油工程
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高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2011
·Vol. 25
·期 5
·325-330
·
IF 2.062
Ying Wang,Mei Wang,Lin Wang,Yu Wang,Xiuna Wang,Licheng Sun
The sterically hindered Schiff bases (L 3 –L 5 ), prepared from 3,5-dicumenyl salicylaldehyde and chiral amino alcohols, were used in combination with Ti(O i Pr) 4 for asymmetric oxidation of aryl methyl sulfides with H 2 O 2 as terminal oxidant. Among the ligands L 3 –L 5 , L 4 with a tert -butyl group in the chiral carbon of the amino alcohol moiety gave the best result with 89% yield and 73% ee for the sulfoxidation of thioanisole under optimal conditions [with 1 mol% of Ti(O i Pr) 4 in a molar ratio of 100:1:1.2:120 for sulfide:Ti(O i Pr) 4 :ligand:H 2 O 2 in CH 2 Cl 2 at 0 °C for 3 h]. The reaction afforded good yield (84%) with a moderate enantioselectivity (62% ee ) even with a lower catalyst loading from 1.0 to 0.5 mol%. The oxidations of methyl 4-bromophenyl sulfide and methyl 4-methoxyphenyl sulfide with H 2 O 2 catalyzed by the Ti(O i Pr) 4 –L 4 system gave 79–84% yields and 54–59% ee of the corresponding sulfoxides in CH 2 Cl 2 at 20 °C. The chiral induction capability of the cumenyl-modified sterically hindered Schiff bases for sulfoxidation was compared with the conventional Schiff bases bearing tert -butyl groups at the 3,5-positions of the salicylidenyl unit. Copyright © 2011 John Wiley & Sons, Ltd.
研究领域:
有机化学
·
不对称催化
·
配位化学
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高影响因子
危险品化学品经营许可证（带存储）