ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Bihong Chen,Yuehua Pan,Yuxiang Deng,Yunhao Hou,Haixuan Liang,Nannan Wang,Jun Luo,Kai Chen,Xinpeng Wang
Pyridine heterocyclic covalent organic frameworks (COFs) have attracted widespread attention in the field of photo-driven hydrogen peroxide (H 2 O 2 ) synthesis due to their unique optoelectronic properties and excellent electron affinity. In this study, the microenvironment change of COFs is achieved through the system regulation of pyridine content in its skeleton. Among these COFs, the bipyridine-structured TpDaBp exhibits the best visible-light-driven H 2 O 2 evolution rate of 8156 µmol g −1 h −1 and reveals significant potential for photocatalytic uranium extraction, attributed to its enhanced π–π interactions, improved optoelectronic performance, and enlarged specific surface area. This work not only provided a new strategy for further designing novel pyridine N-heterocyclic-based COFs but also shows its novel advantages of application.
研究领域:
材料科学
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光催化
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有机化学
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能源化学
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环境修复
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Jinyu Gu,Jinxin Xie,Shasha Li,Ge Song,Minghua Zhou
The oxygen-doped carbon nanotubes coated on the carbon felt acted as cathode to enhance the electro-peroxone (OCNT-EP) process. Owing to the introduction of oxygen-containing functional groups and defect sites, the OCNT modified cathode could achieve in-situ H 2 O 2 generation, activation, and catalytic ozonation in the EP process. The OCNT-EP showed a 2.3-folds apparent first-order rate constant ( k ) compared with the EP process using CNT cathode (CNT-EP) for atrazine (ATZ) degradation. According to the processes comparison, quenching experiments, electron paramagnetic resonance (EPR) analysis and determination of hydroxyl radical, it was proved that more . OH and 1 O 2 were generated by the in-situ H 2 O 2 activation and catalytic ozonation in the OCNT-EP process. Especially, this process improved pollutants degradation under acidic condition for the in-situ H 2 O 2 activation and catalytic ozonation, expanding the pH application range of the EP process with a lower energy consumption (0.10 kWh/g ATZ). What’ more, the OCNT modified cathode performed excellent stability with 20 cycle tests, and demonstrated all improved degradation rate (21.7%−78.0%) for various pollutants (carbamazepine, sulfamethazine, phenol and 2,4-dichlorophenol). Therefore, the OCNT-EP process could be considered as a promising and enhanced EP process for wastewater treatment.
研究领域:
环境工程
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水处理
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纳米技术
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化学工程
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DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2025
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IF 4.7
Yun Deng,Shukui Shi,Di Zhao,Mohan Zu,Lu Pang,Xin Li,Zhihao Du,Xiaoli Jin,Zhengdao Li,Fengyun Su,Haiquan Xie
Photocatalytic H 2 O 2 production suffers from severe charge recombination and sacrificial agent dependency. Hydrangea-like Co-doped CdIn 2 S 4 superstructures (Co/CIS (HD)) synthesized via hydrothermal method exhibit hierarchical porous architecture that enhances light harvesting and reactant diffusion. Atomic Co doping introduces mixed-valence Co 2+ /Co 3+ species, reducing the work function from 6.287 to 5.896 eV and extending carrier lifetime. The dual-valent system establishes a self-regenerative redox cycle where Co 3+ mediates photogenerated electron transfer for O 2 activation while Co 2+ scavenges holes to suppress recombination and photocorrosion. Without sacrificial agents, the optimized 6.5-Co/CIS (HD) achieves an exceptional H 2 O 2 production rate of 1952 μmol g −1 h −1 under visible light, 6.33 times higher than pristine CdIn 2 S 4 . The catalyst maintains structural stability over five cycles due to dynamic Co 2+ /Co 3+ regeneration. This work provides a strategic design for efficient photocatalytic H 2 O 2 synthesis via synergistic morphological and electronic engineering.
研究领域:
材料科学
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光催化
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环境化学
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能量转换
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纳米材料
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DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2024
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IF 4.1
Ting Yu,Ying Liang,Zejun Zhou,Fengjie Chen,Yingjun Wang,Yunjun Mei,Mengxi Cao,Bolei Chen,Pu Wang,Yawei Wang
The photocatalytic generation of hydrogen peroxide (H 2 O 2 ) using artificial synthetic methods is promising. However, the sluggish hole-induced water oxidation half-reaction that hinders charge separation severely limits H 2 O 2 generation efficiency. This study used the oxidation half-reaction of tetracycline (C 22 H 24 N 2 O 8 , TC) to accelerate charge separation over GaOOH/In(OH) 3 composites with Type II heterojunctions under sunlight irradiation to increase the H 2 O 2 generation efficiency. The results demonstrated that the H 2 O 2 generation efficiency significantly increased from 74.7 to 389.8 µmol L −1 h −1 as the TC degradation efficiency increased from 0.02 to 0.37 mg L −1 h −1 . Radical quenching experiments further indicated that TC degradation consumed holes, increasing the electron formation rate and enhancing H 2 O 2 generation. A comparison with density functional theory calculations revealed that H 2 O 2 generation was a one-step 2-electron route (O 2 + 2e − + 2H + → H 2 O 2 ). These findings are expected to provide new strategies for promoting photocatalytic synthesis of H 2 O 2 .
研究领域:
环境科学
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化学
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材料科学
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光催化
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产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2016
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IF 8.328
Hongying Zhao,Ying Chen,Qiusheng Peng,Qingning Wang,Guohua Zhao
A novel bifunctional MOF(2Fe/Co)/CA cathode with a high surface possessing area, and good electrocatalytic and photocatalytic activity, was proposed for the solar photo–electro–Fenton (SPEF) process. The optimal nFe: nCo ratio was 2:1 for successfully introducing MOF(2Fe/Co) on the surface of CA, which is due to the specific interaction affinity of FeOOH between MOF(2Fe/Co) and CA. Continuous on–site generation of H 2 O 2 through an oxygen reduction reaction (ORR) was achieved over the CA cathode. The electron transfer number (n) of the ORR with CA was 2.5 in the selected potential range. Moreover, the addition of MOF can behave as the active sites for enhancing the ORR activity and hence can increase the yield of the H 2 O 2 . Simultaneously, the photoinduced electron (e cb − ) of MOF(2Fe/Co) efficiently in–situ decomposed H 2 O 2 to form hydroxyl radicals ( OH). The observation indicated that the e cb − is an efficient and new Fenton–like catalysts that is pH–independent. Efficient photo–electro–catalytic performance was exhibited when applied to degrade Rhodamine B (RhB) and dimethyl phthalate (DMP). Almost 100% RhB removal and 85% DMP removal were reached in 45 min and 120 min, respectively. The MOF(Fe/Co)/CA presented very low iron and cobalt leaching (<0.5 ppm) even in an acidic media, and it retained an efficient degradation efficiency in the wide pH range of 3–9.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Yibing Feng,Kun Qiao,Xiaohan Jiang,Huiling Ji,Jiang Meng,Jigang Wang
A photocatalysis–self-Fenton system (PSFs) offers a viable solution to the continuous hydrogen peroxide (H 2 O 2 ) dosing and insufficient Fe 2 + regeneration challenges in conventional Fenton chemistry. An oxygen-doped g-C 3 N 4 microrod (OCNT)-based PSFs was synthesized via a facile oxalic acid-mediated supramolecular self-assembly route, enabling efficient pollutant degradation. In situ H 2 O 2 production was achieved through a two-electron oxygen reduction reaction (2e − -ORR), with photogenerated electrons accelerating Fe 2+ /Fe 3+ cycling and enhancing H 2 O 2 utilization. The system exhibited an apparent rate constant of 0.071 min −1 for tetracycline (TC) removal, 12.2- and 4.2-fold higher than pristine g-C 3 N 4 and a photo-Fenton system, respectively. Density functional theory (DFT) calculations and experimental results indicated that oxygen heteroatom doping increased the molecular dipole moment and optimized the band structure, while the one-dimensional microrod morphology exposed abundant active sites. These synergistic effects facilitated charge-carrier separation, improved interfacial mass transfer, and promoted the two-electron oxygen-reduction pathway, thereby accelerating Fe 2+ /Fe 3+ cycling and hole oxidation. The platform demonstrated broad pH adaptability, strong anti-interference capability, and long-term operational stability. This work provides an effective strategy for on-site H 2 O 2 generation and utilization in photocatalytic–Fenton systems for the degradation of organic contaminants.
研究领域:
环境化学
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材料科学
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催化
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水处理技术
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物理化学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Mengyuan Yin,Yuqi Wan,Shuai Li,Xiaoting Zhao,Wenwen Zhang,Yun Zhang,Hua Wang
Mesoporous melamine-silver (MA-Ag) nanocomposites doped with carbon nitride quantum dots (CN QDs ) were fabricated simply by the controlled supramolecular self-assembly. It was discovered that the resulting nanoflower-like CN QDs @MA-Ag nanocomposites could exhibit the peroxidase-like catalysis, which could be specifically enhanced by Hg 2+ by forming [email protected] alloys. A double catalysis-based colorimetric method was thereby developed for the fast detecting of Hg 2+ and Hg 0 in wastewater samples, with the levels down to 0.050 nM and 18.3 nM, respectively. Moreover, strong visible-light-driven photocatalysis of the nanocomposites was demonstrated for oxidizing Hg 0 into Hg 2+ through photocatalytic H 2 O 2 production so as to realize the detoxification of Hg 0 in the environmental wastewater. Besides, the fabricated mesoporous CN QDs @MA-Ag nanocomposites with large specific surface areas might facilitate the high Hg adsorption through the powerful MA-Hg chelate interaction, showing the efficient adsorption and/or removal of total Hg. The catalysis-selective colorimetric analysis and photocatalysis-based detoxification removal of total mercury may promise for wide applications in the environmental monitoring and wastewater treatment of toxic heavy metals of mercury.
研究领域:
环境科学
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纳米技术
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分析化学
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材料科学
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废水处理
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
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IF 8.6
Chao Zhang,Mengxiang Ye,Huaimeng Li,Zhenzhen Liu,Zhen Fu,Haimin Zhang,Guozhong Wang,Yunxia Zhang
Heterogeneous electro-Fenton is a promising technology for the degradation of organic contaminants. To ensure its effectiveness, it is in urgent demand to design cathode materials with the integrated capability of sufficient H 2 O 2 generation and subsequent activation into reactive oxygen species (ROS) together with catalytic stability. Herein, a composite constituted by Fe/Fe 3 C nanoparticles embedded into N-doped porous carbon (NPC), designated as Fe/Fe 3 C@NPC, was successfully fabricated from Fe 3+ -loaded poly(imine dioxime) (PIDO) membrane via the thermal treatment in N 2 atmosphere and employed as the heterogeneous electro-Fenton catalyst to degrade bisphenol A (BPA). By optimizing the pyrolysis temperature and loading level of iron species, the catalyst obtained at 800 °C (i.e. Fe/Fe 3 C@NPC-800) achieved almost 100% of BPA removal efficiency within 120 min via the electro-Fenton system, accompanied by 69.2% of the total organic carbon (TOC) removal rate. Furthermore, the proposed composite catalyst also exhibited satisfactory reusability and stability, as reflected by low decrease in removal efficiency after six successive degradation tests and limited iron leaching (<0.5 mg/L). This work might provide valuable instruction for the rational design of highly efficient and stable heterogeneous electro-Fenton catalysts for organic pollutant control.
研究领域:
环境科学
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催化
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水处理
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材料科学
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产品关联
DOI
高影响因子
Biomaterials Science
·
2024
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IF 5.8
Yu Xia,Ming-Kang Zhang,Jing-Jie Ye,Mei-ting Niu,Xin-yi Dai,Zi-yang Wang,Zhi-ling He,Jun Feng
Metabolic disorders of cancer cells create opportunities for metabolic interventions aimed at selectively eliminating cancer cells. Nevertheless, achieving this goal is challenging due to cellular plasticity and metabolic heterogeneity of cancer cells. This study presents a dual-drug-loaded, macrophage membrane-coated polymeric nanovesicle designed to reprogram cancer metabolism with high specificity through integrated extracellular and intracellular interventions. This nanoformulation can target cancer cells and largely reduce their glucose intake, while the fate of intracellular glucose internalized otherwise is redirected at the specially introduced oxidation reaction instead of inherent cancer glycolysis. Meanwhile, it inhibits cellular citrate intake, further reinforcing metabolic intervention. Furthermore, the nanoformulation causes not only H2O2 production but also NADPH down-regulation, intensifying Redox damages to cancer cells. Consequently, this nanoformulation displays highly selective toxicity to cancer cells and minimal harms to normal cells mainly due to metabolic vulnerability of the former. Once administrated into tumor-bearing mice, this nanoformulation is found to induce the transformation of pro-tumor tumor associated macrophages into the tumor-suppressive phenotype and completely inhibit tumor growth with favourable biosafety.
研究领域:
癌症生物学
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纳米技术
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药物科学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-23
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IF 15.7
Wang Yandong,Li Haodong,Lin Junyang,Li Yutang,Zhang Keqin,Li Hui,Fu Qiang,Jiang Yanyan
Conventional immunotherapy exhibits low response rates due to the immunosuppressive tumor microenvironment (TME). To overcome this limitation, this study introduces ZFPG nanoparticles (ZFPG NPs) with ZnFe 2 O 4 @Pt cores and glucose oxidase (GOx) shells. The ZFPG NPs possess five-enzyme activities, good sonosensitivity, and remarkable magnetic targeting properties, which facilitate sono-metallo-immunotherapy for prostate cancer treatment in male mice. Specifically, the magnetic targeting ability effectively improves their accumulation in tumors while still showing enrichment in the liver and kidneys. The multienzyme cascade catalysis and sonosensitivity of these NPs effectively deplete glutathione and glucose, and enhance the generation and utilization of H 2 O 2 , thereby inducing multiple ROS bursts. Furthermore, these comprehensive effects up-regulate the HMOX1 to promote the Fe 2+ and lipid peroxides accumulation, thereby inducing immunogenic ferroptosis. This strategy facilitates anti-tumor immunity by ameliorating the immunosuppressive TME and inhibiting lung metastatic progression. This joint warfare strategy offers a powerful solution to address conventional immunotherapy limitations.
研究领域:
纳米技术
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癌症免疫治疗
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生物医学工程
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分子生物学
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肿瘤学
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产品关联
DOI
PubMed
高影响因子
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