Catalysts
·
2025
·Vol. 15
·期 11
·1037
·
IF 4
Ming Cai,Shaokun Lv,Yuanyuan Li,Wahyu Prasetyo Utomo,Yongsheng Yan,Zhi Zhu,Jun Zhao
Photocatalytic CO2reduction holds great potential for sustainable solar fuel production, yet its practical application is often limited by inefficient charge separation and poor product selectivity. The photothermal effect presents a viable strategy to address these challenges by reducing activation energies and accelerating reaction kinetics. In this work, we report a rationally designed CN-B/Ti3C2heterojunction that effectively leverages photothermal promotion for enhanced CO2reduction. The black carbon nitride (CN-B) framework, synthesized via a one-step calcination of urea and Phloxine B, exhibits outstanding photothermal conversion, reaching 131.4 °C under 300 mW cm−2illumination, which facilitates CO2adsorption and charge separation. Coupled with Ti3C2MXene, the optimized composite (3:1) achieves remarkable CO and CH4production rates of 80.21 and 35.13 μmol g−1h−1, respectively, without any cocatalyst—representing a 2.9-fold and 8.8-fold enhancement over CN-B and g-C3N4in CO yield. Mechanistic studies reveal that the improved performance stems from synergistic effects: a built-in electric field prolongs charge carrier lifetime (3.15 ns) and reduces interfacial resistance, while localized heating under full-spectrum light further promotes CO2activation. In situ Fourier transform infrared (FTIR) spectroscopy confirms the accelerated formation of key intermediates (*COOH and *CO). The catalyst also maintains excellent stability over 24 h. This study demonstrates the promise of combining photothermal effects with heterojunction engineering for efficient and durable CO2photoreduction.
研究领域:
材料科学
·
光催化
·
可再生能源
·
纳米技术
·
环境化学
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 35
·16941-16950
·
IF 3.925
Shuai Wang,Feng Li,Yanxiu Liu,Qiang Zhang,Hua Song
A series of stable N-doped porous carbon encapsulated Ni nanoparticles (Ni@CN) were prepared via direct pyrolysis of Ni-MOF-74(N) and utilized for the catalytic transfer hydrogenation (CTH) of phenol to cyclohexanol with isopropanol as a hydrogen donor. The prepared catalysts were characterized by means of TG, XRD, BET, SEM, TEM and XPS. The effects of preparation and reaction conditions on the CTH performance were investigated. The results showed that the Ni particles of Ni@CN were smaller than that of Ni@C, which reflected that the doping of nitrogen could improve the dispersion of Ni nanoparticles. Moreover, electrons can be redistributed with N-doping. These two factors contribute to better catalytic activity. The Ni@CN-450 catalyst exhibited 99.3% phenol conversion with 100% cyclohexanol selectivity. Moreover, the catalysts could be recycled and reused easily with the help of a magnet and its catalytic performance did not decrease obviously even after five successive cycles.
研究领域:
化学工程
·
材料科学
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Lijing Yan,Xiaomin Zeng,Shu Zhao,Wei Jiang,Zeheng Li,Xuehui Gao,Tiefeng Liu,Zekai Ji,Tingli Ma,Min Ling,Chengdu Liang
Temporally intermittent and spatially dispersed renewable energy sources strongly call for large-scale energy storage devices. Aqueous aluminum-ion batteries show great potential for application due to their safety and low cost. Thus far, however, the ideal full-battery configuration is beyond the scope due to shortcomings with regards to suitable anode and cathode materials. Herein, we report a pioneering aqueous aluminum-ion battery system consisting of a Prussian white cathode, 1 M Al2(SO4)3 aqueous electrolyte, and an organic 9,10-anthraquinone anode. The oxidation capability of the Prussian white cathode during the first charging allows for the fabrication of the full battery without pre-inserting aluminum ions, thus making the rocking-chair-type battery feasible. Importantly, the open-framework structure of the Prussian white and distinct enolization charge storage mechanism of 9,10-anthraquinone ensure fast reaction kinetics. The full battery exhibits cycling stability with a capacity retention of 89.1% over 100 cycles at 500 mA g–1, finishing a cycle in about 10 min. This work provides a pathway for developing rechargeable aqueous aluminum-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121376
·
IF 7.2
Wei Ren,Xiao-Wen Huang,Dongmei Hou,Zhuoyuan Li,Jingenqi Li,Denglong Chen,Yuehong Ma,Chongli Wu,Qian-Qian Tang,Yi Hu,Long-Shuai Zhang,Jian-Ping Zou
Advanced oxidation processes (AOPs) based on peracetic acid (PAA) are widely employed for water purification; however, conventional PAA activation methods often exhibit low efficiency in generating hydroxyl radicals (•OH). Herein, a carbon nitride-supported Fe single atom catalyst (Fe-CN) is employed to activate PAA, achieving efficient degradation of 4-chlorophenol (4-CP). Experimental analyses confirmed that •OH is the predominant reactive species responsible for degradation. Density functional theory (DFT) calculations and in-situ Raman spectroscopy revealed that Fe-CN selectively adsorbs peroxy oxygen atoms from PAA, promoting O-O bond cleavage and •OH formation. The system demonstrated robust stability across a wide pH range, resistance to ionic interference, and high efficiency in natural water matrices. This work provides novel insights into •OH-dominated PAA-based AOPs for sustainable wastewater treatment.
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高影响因子
Energy Storage Materials
·
2021
·
IF 17.789
Ruifa Bai,Jian Yang,Guojie Li,Jiayan Luo,Wenjing Tang
The application needs of small electronic devices and large-scale power grid storage continuously promote the development of a new battery energy system. Rechargeable metal batteries based on aluminum (Al) are of enormous potential due to the abundant Al reserves, the trivalent charge carrier, high theoretical specific capacity (2980 mAh/g), and volumetric energy density (8046 mAh/cm 3 ). However, the passivating oxide layer on the surface of the Al anode blocks the migration of electrons and ions, resulting in the operation difficulty and irreversibility of aluminum-based batteries. Herein we treated Al anode with a deep eutectic solution (DES) and constructed stable solid interface interphase on its surface, which can effectively prevent surface passivation , improve the chemical properties of the interface, promote ion transfer, and enable aqueous Al batteries with superior electrochemical performance . The assembled symmetric cells with treat Al (TAl) can cycle for more than 300 h with a low overpotential (~0.2 V). The TAl anode coupling with the FPB cathode material to assemble the full cells based on the aqueous electrolyte system can deliver a high discharge capacity of 85 mAh/g and exhibit capacity retention of 58 mAh/g after 150 cycles and an average coulombic efficiency of 97.1% at a current density of 100 mA/g. This work provides a novel surface modification strategy of Al metal anode and demonstrates high stability and cost-effective aqueous Al metal battery system, which suggest the significance for the commercialization of Al-metal batteries and their applications in large-scale energy store.
研究领域:
电化学
·
能源材料
·
无机化学
·
储能技术
·
金属负极
·
水系电池
·
界面工程
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DOI
高影响因子
Molecular Catalysis
·
2019
·
IF 2.938
Xin Ge,Meng Ge,Xinzhi Chen,Chao Qian,Xuemin Liu,Shaodong Zhou
The exploration of inexpensive and stable heterogeneous catalysts and application of green solvents for Ullmann C N coupling reaction remain challenging. We present a facile fabrication of copper nanoparticles on hydrochar as prepared from natural, inexpensive and renewable chitosan together with in-situ reduction of copper salt in a one-pot hydrothermal carbonization process. The copper nanoparticles were uniformly dispersed on hydrochar by choosing block copolymer F127 as surfactant. Moreover, maleic acid was introduced to improve the hydrophilicity of hydrochar. The most active copper nanocomposite catalyst, that is, Cu/HCS-MA-F127, exhibited excellent catalytic activity for Ullmann C N coupling reaction in water. The nature of the Cu/HCS-MA-F127 was characterized by FTIR spectroscopy, TG, XRD, SEM and XPS. Moderate to excellent yields of aimed products were gained by using this catalytic strategy. Moreover, the Cu/HCS-MA-F127 catalyst can be reused by simple centrifugal recovery with a stable performance.
研究领域:
化学
·
材料科学
·
催化反应
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 44
·期 27
·11861-11869
·
IF 3.288
Shengnan Yue,Xueguang Wang,Shaoting Li,Yao Sheng,Xiujing Zou,Xionggang Lu,Chunlei Zhang
A highly chemoselective and recyclable ruthenium catalyst for the hydrogenation of halogenated nitroarenes has been prepared via the simple in situ calcination of a mixture of melamine, glucose and ruthenium trichloride. Superfine Ru particles (2.3 ± 0.3 nm) were obtained and highly dispersed in the nitrogen-doped carbon matrix. The Ru/CN catalyst smoothly transforms a variety of halogenated nitroarenes to the corresponding haloanilines with high intrinsic activity (e.g. TOF = 1333 h−1 for p-chloronitrobenzene) and selectivity of more than 99.6%. Furthermore, through an analysis of the products in the reaction process, it was concluded that there are two parallel reaction pathways (a direct pathway and an indirect pathway) for the hydrogenation of aromatic nitro compounds over the Ru/CN catalyst, and the direct pathway was proved to be dominant in catalyzing the intermediates.
研究领域:
催化化学
·
材料科学
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产品关联
DOI
高影响因子
Catalysts
·
2023
·Vol. 13
·期 3
·600
·
IF 3.9
Jiajia Wei,Xing Chen,Xitong Ren,Shufang Tian,Feng Bai
Due to the different electron affinity, the construction of a donor-acceptor (DA) system in the graphitic carbon nitride (g-CN) matrix is an attractive tactic to accelerate photo-induced electron-holes separation, and then further elevate its photocatalytic performance. In this work, perylene tetracarboxylic dianhydride (PTCDA) with magnificent electron affinity and excellent thermal stability was chosen to copolymerize with urea via facile one-pot thermal copolymerization to fabricate g-CN-PTCDA equipped with DA structures. The specific surface area of g-CN-PTCDA would be enlarged and the visible light absorption range would be broadened simultaneously when adopting this copolymerization strategy. A series of characterizations such as electron paramagnetic resonance (EPR), steady and transient photoluminescence spectra (PL), electrochemical impedance spectroscopy (EIS), and photocurrent tests combined with computational simulation confirmed the charge separation and transfer efficiency dramatically improved due to the DA structures construction. When 0.25% wt PTCDA was introduced, the CO evolution rate was nearly 23 times than that of pristine g-CN. The CO evolution rate could reach up to 87.2 μmol g−1h−1when certain Co2+was added as co-catalytic centers. Meanwhile, g-CN-1 mg PTCDA-Co exhibited excellent long-term stability and recyclability as a heterogeneous photocatalyst. This research may shed light on designing more effective DA structures for solar-to-energy conversion by CO2reduction.Keywords:donor-acceptor;graphitic carbon nitride;PTCDA;photocatalysis;CO2reduction
研究领域:
材料科学
·
环境科学
·
化学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Haidong Zhao,Liqin Yang,Zan Zhang,Yashuang Hei,Weitao Li,Zhen Lu,Zhiju Zhao
Creating an efficient, resilient, and low-cost material for hydrogen evolution is a tough task that has paid the attention by many researchers. Here, we present the in situ formation of non-noble metal CN@CoP heterojunction catalysts for photocatalytic hydrogen generation through a simple phosphorization technique. Consequently, the modified CN@CoP photocatalyst demonstrates an enhanced hydrogen evolution rate of 1.818 mol g −1 h −1 and superior hydrogen production stability. The results of UV–vis DRS , PL and EIS indicate that the core-shell CN@CoP heterostructure shows a faster photo-generated charge transfer. The fascinating photocatalytic performance is mainly due to the enhanced charge carrier separation efficiency and the increasing active sites, which are produced by the heterojunction.
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yuxin Tang,Xinyi Yang,Lingyu Zeng,Bili Tan,Fei Qi,Bo Feng,Liang Wang,Guangbo Che
Precise atomic-scale interface engineering across the entire pH range remains a formidable challenge for photocatalytic H 2 evolution. Herein, hexamethylenetetramine (HMT) is introduced as a bifunctional surface modifier that spontaneously constructs Pd-N coordination bridges on g-C 3 N 4 . The interfacial Pd-N bonds collectively down-shift the N-p-band center away from the Fermi level, break intrinsic surface charge symmetry of C/N atoms, and fully expose the originally buried N active sites, thereby steering the hydrogen adsorption free energy (|ΔG H* |) toward thermoneutral. Simultaneously, the Pd-N bond confines Pd cluster growth to ∼5 nm, doubling specific surface area and enriching edge active sites that serve as primary proton reduction centers. Transient photoelectric voltage results reveal that the Pd-N electron transfer channel shortens the carrier transfer path and prolongs photoelectron lifetime, enabling quantitative electron delivery under acidic, neutral, and alkaline environments. As a result, the Pd-CN-HMT sample presents an efficient H 2 evolution rate across the entire pH window. This work advances the field by providing a versatile ligand-based strategy to precisely tailor the interfacial electronic structure via strong chemical bonding, offering a distinct and scalable solution for constructing high-performance pH-universal photocatalysts.
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DOI
高影响因子
Environmental Technology & Innovation
·
2026
·
IF 7.3
Qiuyu Chen,Minquan Feng,Fei Tian
Traditional photoenzymatic systems for dye wastewater face critical bottlenecks, including radical-induced enzyme inactivation, inadequate light/oxygen exposure, and cumbersome catalyst recovery. Herein, a biomimetic floating catalyst (EP-CN-LC) was prepared using porous natural expanded perlite (EP) as the buoyant scaffold. Graphitic carbon nitride (CN) was anchored at the air-water interface, and laccase (LC) was immobilized in the subaqueous region via adsorption-covalent grafting. Successful spatial segregation endows CN with enhanced visible-light absorption (band gap = 2.63 eV), and the porous structure of EP protects LC from radical-induced inactivation. Under optimal conditions (13 mg LC loading, pH 4, 50°C), EP-CN-LC achieved 86.3% Rhodamine B degradation efficiency, 1.25 times higher than pure CN. Radical trapping experiments identified photogenerated holes (h⁺) and superoxide radicals (•O₂⁻) as the dominant active species, with the spatial design confining reactive species to the interfacial region. The catalyst exhibits excellent pH and temperature adaptability. After direct recovery, EP-CN-LC retains a high degradation efficiency of 80.5% over 5 consecutive cycles, demonstrating outstanding reusability. Its inherent floating property enables direct and facile separation during recycling, eliminating cumbersome operations and reducing application costs. This biomimetic design synergistically integrates efficient dye degradation, effective protection of LC from radical damage, and convenient recyclability, providing a green and practical technical solution for refractory dye wastewater treatment.
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Mingxuan Huang,Huafeng Wang,Shicong Gui,Chujia Xu,Yi Chen,Shaohua Hu,Yubo Li
Accurate monitoring of ROS levels is essential for oxidative stress (OS) management, but their low concentration and instability pose significant detection challenges. Here, we developed a highly sensitive and selective electrochemical biosensor for real-time, micro-volume ROS detection in leukemia cells. The sensor was fabricated using ultrathin g-C₃N₄-rGO (CN-rGO) nanosheet synthesized through a calcination and hydrothermal approach. These nanosheets were deposited onto a screen-printed carbon electrode (SPE) and further modified with silver nanoparticles (AgNPs) to construct a CN-rGO@AgNPs/SPE biosensor. The porous nanostructure significantly enhanced the catalytic surface area and electron transfer efficiency, achieving high sensitivities towards H₂O₂ and O₂·⁻ detection. Using a window titration platform, the sensor detected ROS in 0.1 mL lysates of leukemia cell lines (U-937, THP-1, and MOLM-13) with concentrations of 7.38 ± 4.81 μM, 11.74 ± 0.985 μM, 19.84 ± 3.73 μM, respectively. Furthermore, the platform allowed precise monitoring of doxorubicin (DOX)-induced OS, providing valuable insights for guiding leukemia chemotherapy. Additionally, Lipopolysaccharide (LPS) stimulation experiments demonstrated the sensor's exceptional real-time performance, enabling dynamic detection of H₂O₂ release kinetics and ROS generation rates at the cellular level. Combining high sensitivity, low detection limits, and micro-volume analysis capabilities, this sensor holds great potential for clinical auxiliary diagnosis and drug efficacy assessment in leukemia research.
研究领域:
生物传感器
·
电化学
·
纳米技术
·
癌症生物学
·
活性氧物种
·
生物医学工程
·
分析化学
·
白血病研究
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DOI
高影响因子
危险品化学品经营许可证（带存储）