SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Junke Li,Mei Li,Youji Li,Xin Guo,Zhiliang Jin
The exploration of multiple composite with heterojunction structures to replace single catalysts with insufficient capacity is significant for the photocatalytic evolution of high-yield hydrogen. In this case, the Mo 2 S 3 /Bi 2 O 2 CO 3 composite with a unique n-n heterojunction and two-dimensional (2D) spatial structure was successfully prepared for the first time using the hydrothermal-physical mixture method. The percentage of Bi 2 O 2 CO 3 in the composite can be easily adjusted by changing the amount of Bi 2 O 2 CO 3 introduced into the physical mixing process. With a mass percentage of Bi 2 O 2 CO 3 attained 3% to Mo 2 S 3 , the composite Mo 2 S 3 /Bi 2 O 2 CO 3 with n-n heterojunction exhibited the highest photocatalytic effect among all as-prepared samples, with a photocatalytic effect 5 times higher than pure Mo 2 S 3 . The presence of Bi 2 O 2 CO 3 and the synergistic interactions of n-n heterojunction significantly reduced the dispersity of short-rod shaped Mo 2 S 3 , as well as the recombination of photogenerated charge carriers. As a result, electron circulation was improved, and photocatalytic hydrogen evolution activity under visible light was improved. In addition to improving the photocatalytic hydrogen evolution effect, the composite Mo 2 S 3 /Bi 2 O 2 CO 3 has been found to have excellent stability, which is a noteworthy feature. A series of characterization results and semiconductor energy band structure were used to investigate the possible photocatalytic hydrogen evolution mechanism in the Eosin-Y (EY) sensitized Mo 2 S 3 /Bi 2 O 2 CO 3 system.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
ACS Nano
·
2023
·
IF 17.1
Chendong Zhao,Yuqiang Fang,Hao Chen,Shaoning Zhang,Yingjie Wan,Muhammad Sohail Riaz,Zhuang Zhang,Wujie Dong,Lei Diao,Dayong Ren,Fuqiang Huang
Flexible piezosensing electronic skins (e-skins) have attracted considerable interest owing to their applications in real-time human-health monitoring, human–machine interactions, and soft bionic robot perception. However, the fabrication of piezosensing e-skins with high sensitivity, biological affinity, and good permeability at the same time is challenging. Herein, we designed and synthesized Mo2S3 nanowires by inserting ∞1[Mo2+S] chains between MoS2 interlayers. The resulting Mo2S3 nanowires feature high conductivity (4.9 × 104 S m–1) and a high aspect ratio (∼200). An ultrathin (∼500 nm) Mo2S3 nanowire network was fabricated using a simple liquid/liquid interface self-assembly method, showing high piezoresistive sensitivity (5.65 kPa–1), a considerably low pressure detection limit (0.08 Pa), and gratifying air permeability. Moreover, this nanowire network can be directly attached to human skin for real-time human pulse detection, finger movement monitoring, and sign language recognition, exhibiting excellent potential for health monitoring and human–machine interactions.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Huan Xia,Hailan Qin,Yushan Zhang,Hang Yin,Qiang Li,Fei Pan,Dongsheng Xia,Dongya Li,Haiming Xu
Enhance the concentration of singlet oxygen ( 1 O 2 ) to ameliorate the photocatalytic performance is a promising strategy. Therefore, Z-scheme Mo 2 S 3 /BiOCl heterostructure with rational oxygen vacancies (OVs) was successfully synthesized by in-situ template method to tackle these issues. Characterization results reveal that the OVs were efficiently passivated by forming Mo–O bond at the interface of Mo 2 S 3 and BiOCl. Moreover, the photocatalytic mechanism research reflects that the interfacial electric field not only enhance the spatial separation and migration efficiency of the photo-induced carriers but also benefit producing abundant 1 O 2 , and thus TC-HCl was purified 90.8% in 90 min. Meanwhile, the contribution of the reactive oxygen species to the photocatalytic activity and the formation path of 1 O 2 were comprehensively studied for the first time. This work provides a new avenue to study the formation path of 1 O 2 and offer a polishing strategy to mend the photocatalytic activity by modulate the concentration of 1 O 2 .
研究领域:
材料科学
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环境科学
·
光催化技术
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Shang Wu,Xuexue Yang,Tao Cui,Qiaoliang Feng,Sheng Zhou,Xin Xu,Huanlei Zhao,Lan Wu,Yuan He,Quanlu Yang
The tubular-like NiS/Mo 2 S 3 microspheres as electrode material are designed and synthesized by solvothermal method , and match with activated carbon to build a new asymmetric supercapacitor , improving specific energy and cycle life of asymmetric supercapacitors. The NiS/Mo 2 S 3 composite material of tubular-like microspheres possesses excellent specific capacity (199 mAh g −1 at a current density of 1 A g –1 ) and long cycle life (76% of initial capacity after 3000 cycles). In addition, a new asymmetric supercapacitor (ASC) based on NiS/Mo 2 S 3 (positive electrode) and AC (negative electrode) is fabricated, which have high energy storage and excellent cycle stability. The NiS/Mo 2 S 3 -2//AC ASC possesses high specific energy (31.2 Wh Kg −1 ) and specific power (850 W Kg −1 ), its specific capacity still maintains 81.3% after 10,000 cycles. Therefore, the tubular-like NiS/Mo 2 S 3 microspheres may enrich the material system related to nickel-molybdenum bimetal for SCs.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2020
·Vol. 26
·期 9
·4499-4510
·
IF 2.394
Liu Jian,Xu Ying-Ge,Kong Ling-Bin
Herein, molybdenum trisulfide/nickel disulfide-reduced graphene oxide (Mo 2 S 3 /NiS 2 -RGO) composites as anode material for sodium-ion batteries (SIBs) and sodium-ion capacitors (SICs) were synthesized by one-step facile hydrothermal method. Through electron microscopy analysis, it could be observed that the Mo 2 S 3 /NiS 2 nano-rods and nano-balls were dispersed uniformly over the two-dimensional RGO sheets. When tested as an anode material, Mo 2 S 3 /NiS 2 -RGO showed a considerable reversible capacity of 653.1 mA h g −1 at 100 mA g −1 after 50 cycles and capacity retention of 197.5 mA h g −1 at 5000 mA g −1 after 226 cycles. The sodium storage mechanism of Mo 2 S 3 /NiS 2 -RGO was explained by ex situ XPS. Furthermore, as-fabricated SICs delivered an excellent specific energy of 182.7 W h kg −1 (at 1120 W kg −1 ), and SIBs exhibited the discharge capacities of 85 mA h g −1 at 2 C. Overall, the superior electrochemical performances of Mo 2 S 3 /NiS 2 -RGO demonstrated that it was a promising anode materials to construct high-performance full cell.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Catalysis Science & Technology
·
2021
·Vol. 12
·期 4
·1144-1158
·
IF 6.119
Junke Li,Mei Li,Zhiliang Jin
An S-scheme surface heterojunction between Co3S4 and Mo2S3 was constructed successfully via a stepwise hydrothermal method. A rhombic dodecahedral cobalt-based metal–organic zeolite imidazole framework (ZIF-67) is used as the cobalt source and template to participate in the reaction process. ZIF-67 with a dodecahedral structure is first reshaped into cobalt sulfide with a hollow polyhedral structure via a one-step sulfidation reaction. And then, Mo and S species were introduced on the surface of Co3S4 to fabricate Co3S4@Mo2S3 with a hierarchical core–shell structure and S-scheme heterojunction. In comparison, the H2 evolution activity of Co3S4@Mo2S3 is about 7 and 3 times higher than those of pure Mo2S3 and Co3S4. Density functional theory (DFT) calculations were used to construct the molecular model of Co3S4 and Mo2S3, and the sample's energy band structure was also analyzed. Based on the analysis of a series of characterization results, a H2 evolution mechanism of Co3S4@Mo2S3 with a S-scheme surface heterojunction was proposed. The formation of the S-scheme surface heterojunction between Co3S4 and Mo2S3 results in a more developed channel to transfer photogenerated electrons and allows the system to retain a more effective redox potential. Besides, the Mo2S3 nanosheet's criss-cross growth on the Co3S4 surface is beneficial to the improvement of the cycle stability of the Co3S4@Mo2S3 composite. This work uses a ZIF-67 polyhedron as the template to provide a new strategy for preparing a hierarchical S-scheme surface heterojunction photocatalyst based on MOFs.
研究领域:
材料科学
·
化学
·
纳米技术
·
光催化
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·Vol. 11
·期 6
·111477
·
IF 7.7
Siyi Zhou,Fang Zhu,Hao Cheng,Sridhar Komarneni,Jianfeng Ma
In this study, Ni 3 S 2 @Mo 2 S 3 composites were grown on the surface of molybdenum-nickel (Mo-Ni) foam in situ by a one-step hydrothermal method . With p-nitrophenol (PNP) as the target pollutant, the catalyst can produce a good synergistic effect with ozone, and the degradation rate of PNP is more than 96%. Even after five cycles, Ni 3 S 2 @Mo 2 S 3 -NF/O 3 was able to degrade PNP efficiently and stably. In addition, the unique three-dimensional structure of Ni 3 S 2 @Mo 2 S 3 -NF solves the separation and recycling problem of traditional powder catalysts by maintaining the structural stability during the use process and thus, may reduce the cost of water treatment. The degradation process is mainly dominated by non-radical pathways, and the radical pathway, which work synergistically. This work reveals the influencing factors and degradation mechanism of Ni 3 S 2 @Mo 2 S 3 -NF/O 3 system for PNP degradation, which provides a new idea for water treatment and broadens its potential application.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）