Journal of Materials Chemistry A
·
2016
·Vol. 4
·期 36
·13980-13988
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IF 8.262
Zhibin Fang,Xueyan Huang,Yaozhu Wang,Wenhui Feng,Yan Zhang,Sunxian Weng,Xianzhi Fu,Ping Liu
Defective MoS2 nanosheets have been demonstrated to be a superior catalyst for hydrogen evolution; however, mediocre interfacial contact between the MoS2 cocatalyst and the light harvester still impedes the pursuit of composite photocatalyst systems with highly efficient performance. Herein, we propose a dual-defective assembly methodology following the chemical similarity principle to construct effectively-binding MoS2/In2S3 photocatalysts, in which luxuriant defects on layered In2S3 nanosheets serve as in situ growth sites for defective MoS2 layers with abundant exposed edges. The resulting dual-defective system is endowed with improved separation of electron–hole pairs, beneficial interfacial migration and utilization of electrons, and decreased photocorrosion from holes. By this method, the system achieves dramatically enhanced hydrogen evolution activity as well as considerable stability. The imperfections in both MoS2 and In2S3 are indispensable for desirable performance. The present strategy can not only direct the manufacture of defective MoS2-incorporated photocatalysts but may also contribute to the design of other highly active cocatalyst/light harvester systems with effective interfacial contacts.
研究领域:
材料科学
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催化化学
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2024
·
IF 8
Xinlei Li,Zhaoyi Zhang,Shupeng Sun,Nan Wang,Baoyu Huang,Xiaogan Li
Hierarchically structured In 2 S 3 @In 2 O 3 nanorods were synthesized via a two-step hydrothermal method. Compared to single-component In 2 O 3 based sensors, the as-developed In 2 S 3 @In 2 O 3 nanorods based chemiresistive-type sensor exhibited significantly enhanced response and reduced operating temperature. The sensor displayed a response of approximately 51.2 to 3 ppm NO 2 at 120℃, with a response time and recovery time of 76 and 48 seconds, respectively, and a detection limit of NO 2 concentration to 0.014 ppm. By constructing In 2 S 3 @In 2 O 3 heterojunctions, the optimal operating temperature has been effectively lowered from 160℃ to 120℃. The improved sensing performance is attributable to the nano-heterojunctions formed between In 2 S 3 and In 2 O 3 , which increase the specific surface area to provide additional active adsorption sites, and as well, prevent the shielding effect of surface-adsorbed oxygen on NO 2 . Density functional theory (DFT) calculations demonstrated that the introduction of heterojunctions of In 2 S 3 @In 2 O 3 enhances the adsorption energy and charge transfer between NO 2 and the sensing material.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
ACS Omega
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2021
·
IF 3.512
Ze Yuan,Lanlan Yang,Dongni Han,Guorong Sun,Chenyu Zhu,Yao Wang,Qiao Wang,Mikhail Artemyev,Jianguo Tang
High-efficiency photoluminescence quaternary hexagon Zn–Cu–In–S (ZCIS) nanoplatelets (NPls) have been synthesized by a two-step cation exchange method, which starts with the In2S3 NPls followed by the addition of Cu and Zn. It is the first time that In2S3 NPls are used as templates to synthesize ZCIS NPls. In this paper, the reaction temperature of In2S3 is essential for the formation of NPls. The photoluminescence wavelength of NPls can be tuned by adjusting the temperature of Cu addition. To enhance the stability of the resulting NPls and to improve their optical properties, we introduced Zn2+ and obtained ZCIS NPls by cation exchange on the surface. It is worth noting that the obtained ZCIS NPls show a shorter fluorescence lifetime than other ternary copper sulfide-based NPls. This work provides a new way to synthesize high-efficiency, nontoxic, and no byproduct ZCIS NPls.
研究领域:
材料科学
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纳米技术
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光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Linjuan Wang,Siva Krishna Karuturi,Ling Zan
We present one-pot hydrothemal syntheis of SnS 2 -In 2 S 3 p-n heterostructures for photocatalytic reduction of Cr 6+ to Cr 3+ . The conduction bands of In 2 S 3 and SnS 2 serve as the photogenerated electron donors and acceptors, respectively, forming a p-n junction band alignment improving the photogenerated charge separation efficiency. Through a detailed investigation of photocurrent spectra, photoluminescence spectra and electrochemical impedance, the heterojunction formation is shown to enhance the photogenerated charge separation and transport properties. In addition, the analysis of 5,5-Dimethyl-1-pyrroline N-oxide (DMPO) spin trapping electron spin resonance (ESR) spectra and band structure further testify the p-n junction of the composite catalyst that could accelerate the electron transport and change the pathway of photocatalytic process toward Cr 6+ reduction. Furthermore, SnS 2 -In 2 S 3 heterojunction photocatalyst achieved 3 times and 67 times higher efficiency than pure In 2 S 3 and SnS 2 photocatalysts under visible light toward Cr 6+ reduction. Moreover, the SnS 2 -In 2 S 3 p-n heterojunction photocatalyst demonstrates Cr 6+ removal in a weak alkaline solution, breaking through the challenge of Cr 6+ reduction in an alkaline environment.
研究领域:
材料科学
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环境科学
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光催化
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Mei Cai,Chao He,Hulei Yu,Anze Shui
The construction of heterojunction for photocatalysis has garnered much research interest. Herein, we report the successful fabrication of a ternary dual S-scheme ZnO/ZnS/In 2 S 3 heterojunction with a higher photocatalytic capacity via a hydrothermal method . Specifically, the optimized ternary heterojunction ZSI0.35 sample achieves the 100 % photodegradation efficiency of RhB (10 mg/L, 50 mL) within 10 min, approximately 17 and 8 times higher than pure ZnO and ZnO/ZnS binary heterojunction, respectively. Further characterization results confirm the dual S-scheme heterojunction structure in the fabricated ZnO/ZnS/In 2 S 3 ternary heterojunction, and the improvement of photocatalytic properties can be attributed to the enhanced Brunauer Emmett-Teller (BET) surface area, the improved redox capacity of the photocatalyst, and the quick charge transfer. Additionally, the possible photocatalytic mechanism is discussed according to the measurements. This work provides an efficient strategy of promising heterojunction photocatalysts for photocatalytic environmental remediation.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2021
·Vol. 23
·期 19
·3488-3497
·
IF 3.545
Panbing Hu,Yanmei Xin,Congfei Yao,Yuqing Miao
In2S3/BiOI composites were synthesized at room temperature which significantly improved the photocatalytic degradation of tetracycline hydrochloride (TC) under visible light irradiation. Structure and morphology characterization techniques have been performed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction measurements (XRD) and X-ray photoelectron spectra (XPS). The separation ability of photogenerated carriers is enhanced due to the formation of heterojunctions of the composites. The best performance is obtained when the content of In2S3 is 7 wt%. Compared with In2S3 and BiOI alone, 7-In2S3/BiOI has the highest specific surface area and can provide more active sites. Based on the photo-electrochemical characterization and free radical tests, a photocatalytic mechanism of In2S3/BiOI composites in the presence of superoxide radicals (˙O2−) and holes (h+) is reasonably proposed.
研究领域:
材料科学
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环境科学
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光催化技术
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2015
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IF 7.435
Wenwen Gao,Wenxia Liu,Yanhua Leng,Xiaowei Wang,Xingqi Wang,Bin Hu,Dehai Yu,Yuanhua Sang,Hong Liu
We, herein, report the synthesis of the first photocatalyst, tetragonal In 2 S 3 nanoparticles, to display broad-spectrum photocatalytic properties under ultraviolet (UV), visible, and near-infrared irradiation from a simple hydrothermal method. The as-synthesized In 2 S 3 nanoparticles have irregular morphology and possess a primary particle size of 5–20 nm with high photo-degradation abilities under UV (96.2% within 30 min), visible light (95.4% within 3 h) and near-infrared light (67.2% within 3 h), a phenomenon extremely rare in character with respect to a broad class of photocatalysts that have a single crystalline phase. This current work in broadband spectrum photocatalysis affords a new paradigm for the full utilization of solar light.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Junlong Zhang,Jie Wei,Minchuan Xiahou,Zehao Sun,Ao Cao,Youxin Yuanfeng,Yanchun He,Shigeng Song
Novel In 2 S 3 @BiYWO 6 heterojunction photocatalysts were designed and synthesized by a simple two-step hydrothermal method, which exhibit extremely excellent photocatalytic activity for degrading the residual antibiotics in wastewater. Especially, In 2 S 3 @BiYWO 6 composite with mass ratio of 10:1 shows the highest photo-degradation efficiency towards Tetracycline Hydrochloride, which is about 2.46 and 7.55 times than that of pristine In 2 S 3 and BiYWO 6 , respectively. A direct Z-scheme charge transfer mechanism was demonstrated in these heterojunctions through the XPS analysis, radical species trapping experiments and fluorescence detection. Within the framework of this mechanism, the critical built-in electric field ( E i ) formed at the contact interface between In 2 S 3 and BiYWO 6 spatially separates reduction or oxidation sites and thus preserves the photogenerated carriers with stronger redox ability on reaction sites, which ultimately enhances the photocatalytic activity of the heterojunction catalysts. It is commendable that such Z-scheme heterostructures between In 2 S 3 and BiYWO 6 exist in a wide span of component ratios (from 5:1 to 30:1), which is beneficial for the environmental remediation applications. It is believed that this work provides new ideas for design and synthesis of novel Z-scheme heterojunction photocatalysts.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Xiaohong Ma,Danyang Li,Huacheng Jin,Xi Zeng,Jian Qi,Zongxian Yang,Feifei You,Fangli Yuan
Herein, an urchin-like Fe 2 O 3 @In 2 S 3 hybrid composite is designed and synthesized using a facile process. The composite efficiently harvests light in both the ultraviolet and visible regions, and the unique hierarchical structure provides several advantages for photocatalytic applications: (i) a suitable band-matching structure and broadband-light absorbing capacity enable the reduction of CO 2 into hydrocarbon, (ii) the extensive network of interfacial contact between nano-sized Fe 2 O 3 and In 2 S 3 significantly increases the separation of charge carriers and enhances the utilization of photogenerated electron-hole pairs, and (iii) an abundance of surface oxygen vacancies provide numerous active sites for CO 2 molecule adsorption. The optimized Fe 2 O 3 @In 2 S 3 composite generated CO from the photocatalytic reduction of CO 2 at a rate of 42.83 μmol·g −1 ·h −1 , and no signs of deactivation were observed during continued testing for 32 h under 300 W Xe lamp irradiation.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2021
·
IF 6.498
Lin Hu,Dong Mao,Liu-han Yang,Ming-sheng Zhu,Zheng-hao Fei,Shi-xin Sun,Dong Fang
Enhancing photocatalytic performance via electronic modulation have attracted much attention for synergetic photocatalytic degradation of antibiotic pollutant. In this study, a new hetero-structured system is raised, which comprises In 2 S 3 coupled to In-MOF and operates as an efficient photocatalyst for RhB degradation. The formation of hetero-structure and occurred electron modulation of In 2 S 3 /In-MOF hybrid was confirmed by relevant characterizations. Surprisingly, the In 2 S 3 /In-MOF hybrid represented enhanced photocatalytic ability over In-MOF. The photocatalysis of Rhodamine B in presence of In 2 S 3 /In-MOF hybrid has achieved 92.2 % degradation.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2018
·
IF 6.14
Ying-Chu Chen,Hao-Hsuan Chang,Yu-Kuei Hsu
Decoration of CuInS2 (CIS) quantum dots (QDs) on ZnO nanowires (NWs) with an interlayer of In2S3 as photoelectrode has been successfully fabricated on FTO via the simple solution routes for photoelectrochemical (PEC) application. Scanning electron microscopy, transmission electron microscopy, and X-ray diffraction are utilized to systematically analyze the morphology and structure of the CIS QD/In2S3/ZnO NWs heterostructure. The composition of this multilayer heterostructure and the removal of QD ligands by a thermal process are confirmed by X-ray photoelectron spectra. In comparison with CIS QDs/ZnO NWs, the CIS QD/In2S3/ZnO heterostructural photoelectrode displays an efficient charge separation and carrier transport path for photocurrent up to 2.4 mA·cm–2 that is competitive with other Cd- and Pb-free QD-based materials. In addition, Mott–Schottky analysis demonstrates the negative shift of the flat band in the CIS QD/In2S3/ZnO, which benefits the early onset potential. Significantly, this hierarchical photoelectrode shows the improvement the absorption and conversion of solar light in the visible region obtained using a pristine ZnO structure. Our research paves the way for exploring lead-free and lead-free sulfide materials in the new category of solar applications.
研究领域:
材料科学
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太阳能技术
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纳米科技
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2024
·
IF 4.3
Zhou Sheng,Gaoyu Chen,Xueyan Hu,Yue Chen,Dongdong Xu,Caojin Yuan,Xiangxing Xu
The circularly polarized state of light can carry encoding information through polarization modulation and structural information from the emitter or propagation medium. Therefore, the detection of the polarization state of light is a central function in various applications. One of the concise strategies is to transform left- and right-handed circularly polarized light (CPL) directly into distinguishable electronic signals using chiral structured materials. In this study, chiral films of β-In2S3 vertical nanosheet arrays are successfully grown using a facile solvothermal route. Chirality originates from the distortion of nanosheets with left or right-handedness controlled by the introduction of l-/d-cysteine as chiral inducers. Circularly polarized photodetectors based on chiral β-In2S3 films are fabricated. They exhibit good performances with a responsivity (R) of 8.0 A/W, photodetectivity (D*) of 5.0 × 1012 Jones, the photocurrent dissymmetry factor (gIph) of 0.34, and external quantum efficiency (EQE) of 2.2 × 103 (%) for a CPL of 450 nm.
研究领域:
材料科学
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光学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）