Sustainable Chemistry and Pharmacy
·
2026
·
IF 6.7
Zi-Yi Wang,Yun-Hui Hu,Bin-Yu Gao,Xu Han,Jia-Hao Wang,Yong-Jun Yuan
MoO 3 has been recognized as a potential photocatalyst for photocatalytic ammonia synthesis from N 2 in sacrificial reagent assisted half-reaction system, but is lacking in both sluggish kinetics of N 2 reduction due to the absence of efficient active sites and low practicality originated from high cost sacrificial reagent. Herein, aiming to simultaneously bolster N 2 reduction reaction kinetics and improve practicality, oxygen vacancy-enriched MoO 3-x nanoplates was prepared as photocatalyst for green photocatalytic ammonia synthesis by using abundant cellulose in nature as the sacrificial reagent. Under light irradiation, MoO 3-x photocatalysts simultaneously achieve ammonia production and the conversion of cellulose into high-value chemicals, and the highest NH 3 generation achieves 21.4 μmol g -1 ·h -1 under 300 W Xe lamp irradiation in cellulose solution. The excellent photocatalytic activity of MoO 3-x can be ascribed to the positive role of oxygen vacancy, which provides abundant active sites for ammonia synthesis. Meanwhile, the oxygen vacancy induces the generation of Mo 5+ in MoO 3-x , which inhibits the reduction of MoO 3-x to water-soluble H x MoO 3 , resulting in the high structure stability of MoO 3-x . This work provides new insight for the development of defect-engineered photocatalysts for green ammonia synthesis coupled with sustainable cellulose valorization.
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DOI
高影响因子
AICHE JOURNAL
·
2025
·
IF 4
Ying Tang,Dongsheng Xie,Xiaomin Guo,Lining Fang,Hui Zeng,Zebao Rui
Plasmonic photochemical N 2 fixation has received widespread attention owing to the attractive plasmonic enhancement effects in improving solar-to-NH 3 conversion efficiency. However, the weak N 2 adsorption affinity in metallic plasmonic photocatalysts and insurmountable interfacial barriers in metal–semiconductor plasmonic photocatalysts lead to rapid charge carrier recombination instead of participating in N 2 -to-NH 3 conversion. Herein, a photothermal catalyst Fe-dispersed MoO 3− x /MXene with synergistic plasmon resonance hybridization structure is fabricated for photothermal N 2 fixation. The hybrid plasmon resonance effects derived from MXene and MoO 3− x induce a strong optical response across the ultraviolet–visible-near-infrared range and generation of energetic charge carriers, and the induced photothermal effect further accelerates electron extraction, transport, and surface reaction kinetics. Moreover, the abundant oxygen vacancies and Fe sites can intensify the N 2 adsorption and donate the energetic electrons into the anti-bonding system for the stimulative N H coupling process. A high NH 3 formation rate of 87.1 μmol g −1 h −1 is achieved under solar-level illumination.
研究领域:
材料科学
·
化学工程
·
环境科学
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DOI
高影响因子
DYES AND PIGMENTS
·
2025
·
IF 4.2
Zhaokang Zheng,Zhen Liu,Yujie Ma,Aiwu Wang,Cangtao Zhou,Muhammad Humayun,Mohamed Bououdina
Oxygen vacancies (OVs) govern pollutant adsorption, but quantifying their impact remains challenging. Herein, oxygen-vacancy-rich amorphous MoO 3-x nanostructures (A-MoO 3-x ) were fabricated through a simple one-step hydrothermal route. Compared with previously reported MoO 3 -based adsorbents, A-MoO 3-x exhibits higher adsorption capacity. The Liu model yields a maximum methylene-blue (MB) uptake of 1549.8 mg/g, kinetics obeys a pseudo-second-order model, and thermodynamic analysis confirms a spontaneous, exothermic process. Moreover, A-MoO 3-x selectively removes cationic dyes within a competitive six-dye system (four cationic and two anionic dyes). XPS, EPR and FTIR reveal that cationic dyes are captured via a dual mechanism of electrostatic attraction and electron transfer. When OVs density is deliberately reduced to 76 % of its original value, the adsorption capacity decreases by 66 %, directly evidencing OVs as the dominant active sites. This work elucidates the decisive role of OVs in modulating the adsorption performance of metal oxides.
研究领域:
环境科学
·
材料化学
·
吸附技术
·
纳米材料
·
污染修复
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Hongli Zou,Sijia Li,Zhuo Wang,Zehui Wei,Renquan Hu,Teng Wang,Fu Zhao,Yaoming Zhang,Yong Yang
One-dimensional nanomaterials have become one of the most available nanoreinforcing agents for developing next-generation high-performance functional self-healing composites owing to their unique structural characteristics and surface electron structure. However, nanoscale control, structural regulation, and crystal growth are still enormous challenges in the synthesis of specific one-dimensional nanomaterials. Here, oxygen-defective MoO3–x nanowires with abundant surface dynamic bonding were successfully synthesized as novel nanofillers and photothermal response agents combined with a polyurethane matrix to construct composite elastomers, thus achieving mechanically enhanced and self-healing properties. Benefiting from the surface plasmon resonance of the MoO3–x nanowires and interfacial multiple dynamic bonding interactions, the composite elastomers demonstrated strong mechanical performance (with a strength of 31.45 MPa and elongation of 1167.73%) and ultrafast photothermal toughness self-healing performance (20 s and an efficiency of 94.34%). The introduction of MoO3–x nanowires allows the construction of unique three-dimensional cross-linked nanonetworks that can move and regulate interfacial dynamic interactions under 808 nm infrared laser stimulation, resulting in controlled mechanical and healing performance. Therefore, such special elastomers with strong photothermal responses and mechanical properties are expected to be useful in next-generation biological antibacterial materials, wearable devices, and artificial muscles.
研究领域:
材料科学
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纳米技术
·
聚合物复合材料
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智能材料
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自修复材料
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DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Zewei Liao,Jincheng Liu,Yijun Luo,Wei Cai,Bingjie Li,Xiaoyan Xiang,Yanxiong Fang
Due to the higher susceptibility of alcohols and ketones to oxidation compared to alkanes, converting inert C-H bonds in alkanes into high value-added product KA oil with high selectivity is still a significant obstacle. In this study, flower-like microspheres of MoO 3-x , featuring aligned nanosheets and oxygen vacancies, were combined with nitrogen doped carbon dots (NCDs) to fabricate S-scheme heterojunctions of MoO 3-x -NCDs for boosting the photocatalytic efficiency in oxidizing cyclohexane. Because of the oxygen vacancies-triggered localized surface plasmon resonance (LSPR) and the S-scheme charge transfer mechanism, there was a significant improvement in the absorption of visible light and an enhancement in the efficiency of charge separation. The MoO 3-x -NCDs composites exhibited a notably improved catalytic performance in cyclohexane oxidation. The MoO 3-x -NCDs composite exhibited remarkable selectivity of KA oil in catalyzing cyclohexane oxidation under light exposure, attributed to the substantial increase in cyclohexane adsorption capacity. The highest cyclohexane transformation rate of 9.98 % was achieved by MoO 3-x -NCDs-2 composites with a MoO 3-x /NCDs ratio of 50:1, outperforming bare MoO 3-x by 1.81 times, while exhibiting a KA oil selectivity reaching 93.75 %. The mechanism of selective photocatalytic oxidation was explored using photoelectric examination, analysis of energy bands, and evaluation of active radicals. In this research, green photocatalysts were fabricated through the utilization of NCDs, enabling efficient conversion and selective oxidation of cyclohexane in gentle environments. This innovative approach holds great potential for advancing the field of photocatalysis.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
高影响因子
Molecular Catalysis
·
2026
·
IF 4.3
Bingjie Li,Jincheng Liu,Xiaoyan Xiang,Wenxin Yang,Yang Liang,Lei Li,Yanxiong Fang
The selective oxidation of inert C-H bonds in cycloalkanes to high-value KA oil (the mixture of cyclohexanone and cyclohexanol) is a major industrial challenge, primarily due to the inherent trade-off between conversion and selectivity. To address this, we developed a novel photoelectrocatalyst for the oxidation of cyclohexane under ambient conditions. The catalyst was constructed by first synthesizing blue, oxygen-vacancy-rich MoO 3-x nanowires via a hydrothermal method, followed by the in-situ deposition of AuAg alloy nanoparticles with tunable compositions. Comprehensive characterization confirmed the uniform distribution of the alloy nanoparticles and the formation of a Schottky heterojunction with the MoO 3-x support. This design promotes efficient separation of photogenerated charge carriers and enhances visible-light absorption through the localized surface plasmon resonance (LSPR) effect. During photoelectrocatalytic oxidation, the optimized catalyst (MoO 3-x -Au 20 Ag 20 ) exhibited exceptional performance, achieving a cyclohexane conversion of 30.24% with 93.7% selectivity to KA oil under 2.6 V applied bias and 2 h of irradiation. This represents a 1.9-fold increase in conversion compared to pristine MoO 3-x nanowires. This work provides an efficient and selective pathway for alkane oxidation and advances the strategy for designing synergistic photoelectrocatalytic systems.
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DOI
高影响因子
Small Methods
·
2021
·Vol. 5
·期 11
·2100765
·
IF 14.188
Ruizhe Li,Wujie Dong,Jun Pan,Fuqiang Huang
The transition metal oxides (TMOs) with high volumetric capacities are promising anodes for the future electronics, however, they usually suffer from severe capacity decay and poor rate capability. Carbon hybridization and nanosizing can resolve these challenges, yet these significantly compromise the volumetric capacity. Herein, both high capacity and long cycling stability are simultaneously achieved in the micrometer-sized Mo-based oxide particles by designing the dual conductive MoO 2 /β-MoO 3- x mosaics. The rational combination of the highly electronically conductive MoO 2 with the highly ionically conductive and open-structured β-MoO 3 achieves a promising volumetric capacity of 1742 mAh cm −3 , which is four times higher than the commercial graphite. Simultaneously, both stable cycling performance (87% retention after 500 cycles) and excellent rate capability (outperformed a majority of the MoO 2 -based anodes reported in literature) are obtained in the lithium-ion batteries. For the sodium-ion batteries, the composite exhibits three times higher Na + storage than pure MoO 2 . Moreover, the decisive role of the bond energy on the electrochemical performance of TMOs is also identified. This study may open up new perspectives for choosing and designing the TMO anodes with a high volumetric capacity for the practical applications.
研究领域:
材料科学
·
电化学
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Xintong Yao,Ruiqi Zhang,Minghui Zhu,Dafeng Zhang,Xipeng Pu,Junchang Liu,Hengshuai Li,Peiqing Cai
Some nonstoichiometric semiconductors exhibit excellent near-infrared (NIR) absorption due to their unique localized surface plasmon resonance (LSPR) effect, which is conducive to improving efficiency of light energy conversion to make them promising candidates for efficient photocatalytic hydrogen (H 2 ) evolution. Herein, we constructed a novel 1D/1D MoO 3-x /Mn 0.3 Cd 0.7 S (MO/MCS) S-scheme heterojunction with LSPR and photothermal double effects for boosted full solar spectrum-driven H 2 evolution. The light absorption of MO/MCS was expanded to NIR region through the LSPR effect of MO. Meanwhile, the impressive photothermal effect of MO can increase the surface temperature of the photocatalyst particles under light irradiation, which can further accelerate the photoreaction. According to the experimental and theoretical calculation results, the formation of S-scheme heterojunction was confirmed, which boosted the separation of photo-induced carriers. Consequently, the H 2 evolution performance of judiciously designed MO/MCS composites was significantly enhanced with an optimal H 2 evolution of 2.235 mmol·g −1 ·h −1 , 30.6 times that of pure MCS. This work provides a valuable insight into the development of highly efficient full solar spectrum-driven photocatalysts through utilizing the synergetic effects of LSPR effect, photothermal effect, and S-scheme heterojunction.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yinfen Cheng,Junfeng Du,Nianzhong Ma,Zhong Li,Xinyi Hu,Lieqi Liu,Zhentao Ji,Jian Zhen Ou
The hazards to the ecological environment and human health promote the development of NO 2 monitoring sensors. However, the high operating temperature of traditional metal oxide sensitive materials limits the application of gas sensor-based systems in low power monitoring. Here, we utilize oxygen vacancy enriched 2D MoO 3-x , enabling the high performance optoelectronic NO 2 gas sensing at room temperature. The introduction of oxygen vacancies in MoO 3-x results in the red-shift light absorption from purple light to cyan light and high surface activity with negative potential, thus promoting its application in optoelectronic room temperature gas sensing. Under 365 nm UV light irradiation, oxygen vacancy enriched 2D MoO 3-x based gas sensor shows a good room temperature reversible response towards different concentrations of NO 2 , in which a response factor of 6.46 is achieved towards 10 ppm NO 2 . Moreover, excellent repeatability in six continuous tests, selectivity towards five common gases, and long-term stability for four months were also demonstrated in this sensor. This work provides an effective approach for tuning the electronic structure and surface activity of metal oxide, and demonstrates the application feasibility of oxygen vacancy enriched metal oxide in high optoelectronic gas sensing.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Kai Wei,Jiasheng Zhu,Lufang Fan,Weijie Zhang,Huarui Han,Changchang Ma,Kan Hu,Sheng Feng
Here, we constructed S-scheme CdIn 2 S 4 /MoO 3-x (CISMO) photothermal catalyst with interface Mo-S bond for efficient overall water splitting. As expected, hydrogen (H 2 ) and oxygen (O 2 ) evolution rates of the optimized CISMO reached 554.71 and 277.88 μmol·g −1 ·h −1 , respectively, far higher than that of CdIn 2 S 4 (71.78 and 34.45 μmol·g −1 ·h −1 ) and MoO 3-x (0 and 21.83 μmol·g −1 ·h −1 ). Mechanism analysis revealed that the photogenerated carrier transfer followed an S-scheme route. More importantly, the photocatalytic performance of CdIn 2 S 4 /MoO 3-x was highly relevant with the oxygen vacancies (Ovs) in pristine MoO 3-x . In S-rich environment, the Ovs could be imbedded by sulfur (S) for the formation of interface Mo-S bond during CISMO fabrication. Interface Mo-S bridge facilitated the photogenerated carriers transfer between CdIn 2 S 4 and MoO 3-x . Moreover, the metal-free localized surface plasmon resonance effect, originating from the residual Ovs in CdIn 2 S 4 /MoO 3-x , could further enhance the water splitting performance through photothermal conversion. This work shed light on controllable interface chemical bond formation in heterojunction photocatalysts to signally promote the photocatalytic performance.
研究领域:
光催化
·
材料科学
·
能量转换
·
异质结工程
·
可再生能源
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DOI
高影响因子
BIOMATERIALS
·
2015
·
IF 8.557
Tao Bao,Wenyan Yin,Xiaopeng Zheng,Xiao Zhang,Jie Yu,Xinghua Dong,Yuan Yong,Fuping Gao,Liang Yan,Zhanjun Gu,Yuliang Zhao
Engineering design of plasmonic nanomaterials as on-demand theranostic nanoagents with imaging, drug carrier, and photothermal therapy (PTT) functions have profound impact on treatment of cancer. Here, a facile ‘one-pot’ template-free hydrothermal route was firstly developed for synthesis of plasmonic oxygen deficiency molybdenum oxide hollow nanospheres functionalized by poly(ethylene glycol) (PEG-MoO 3–x HNSs). The as-prepared PEG-MoO 3–x HNSs not only have good biocompatibility but also exhibit obvious localized surface plasmon resonance (LSPR) absorption in the near-infrared (NIR) region. Especially, due to its intrinsic mesoporous properties and effective photothermal conversion efficiency upon 808-nm NIR laser irradiation, the PEG-MoO 3–x HNSs can be applied as a pH/NIR laser dual-responsive camptothecin (CPT) drug delivery nanoplatform for chemotherapy as well as PTT to cancer cells. A remarkably improved synergistic therapeutic effect to pancreatic (PANC-1) tumor-bearing mice was obtained compared to the result of chemotherapy or PTT alone. Apart from its application for drug delivery, the PEG-MoO 3–x HNSs can also be employed as an effective contrast nanoagent for photoacoustic (PAT) imaging because of its high NIR absorption , making it promising as a theranostic nanoagent for PAT imaging-guided chemo-photothermal combinational cancer therapy in the nanomedicine field.
研究领域:
生物医学工程
·
肿瘤治疗
·
纳米医学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Kai Zhang,Qingmei Su,Bin Han,Yvjie Lv,Weihao Shi,Yongle Wang,Pinpin Wang,Zhiyong Wang,Wenqi Zhao,Miao Zhang,Shukai Ding,Shufang Ma,Gaohui Du,Rui Ye,Bingshe Xu
Designing highly efficient nonprecious metal electrocatalyst for the hydrogen evolution reaction (HER) in seawater electrolyte, particularly under ultra-high current density conditions, remains a formidable challenge. In this study, we successfully synthesized a crystalline/amorphous heterostructured CoNi/MoO 3-x electrocatalyst through a facile hydrothermal method followed by a calcination-reduction process. The as-prepared CoNi/MoO 3-x catalyst exhibited remarkable HER catalytic performance in both alkaline water and seawater electrolytes. Notably, the catalyst achieved impressively low overpotentials of 343 mV in 1 M KOH aqueous solution and 294 mV in alkaline natural seawater electrolyte at an ultra-high current density of 4000 mA/cm 2 . Furthermore, the CoNi/MoO 3-x electrocatalyst demonstrated outstanding long-term stability, maintaining robust performance at current densities of 3000 and 2000 mA/cm 2 . Density functional theory calculations revealed that the synergetic effect between crystalline CoNi and amorphous MoO 3-x accelerates water dissociation kinetics and optimizes hydrogen adsorption. These findings not only provide a promising strategy for developing cost-effective, nonprecious metal electrocatalysts with superior HER performance at ampere-level current densities, particularly for seawater splitting applications.
研究领域:
材料科学
·
能源化学
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）