JOURNAL OF NANOPARTICLE RESEARCH
·
2017
·Vol. 19
·期 5
·1-15
·
IF 2.02
Cheng Yang,Niu Helin,Chen Jingshuai,Song Jiming,Mao Changjie,Zhang Shengyi,Chen Changle,Gao Yuanhao
The hierarchical flower-like β-In 2 S 3 catalyst assembled from 2D nanosheets was prepared using an organic-component depletion method utilizing inorganic-organic hybrids indium diethyldithiocarbamate (In-DDTC) as a single-source precursor. The crystallization, morphology and composition of the as-synthesized β-In 2 S 3 were characterized by XRD, SEM, TEM, EDS and XPS, respectively. The β-In 2 S 3 possessed high specific surface area of 134.1 m 2 g -1 , adsorption capacity of 195.5 mg g -1 for methylene blue, and extreme photodecolorization speed under visible light irradiation for the complete removal of methyl orange (MO) dye within 15 min and tetracycline within 60 min. Although methyl orange concentration decreased quickly, the total organic carbon (TOC) decreased slowly. UV-vis and mass spectrometry (MS) were applied to analyze the intermediates coming from the photodecolorization of MO. In order to estimate the roles of active species during the decolorization of MO, trapping experiments were conducted to determine the main active species during the decolorization process. The results indicated that . O 2
− radicals and e -1 were the key intermediates. This enhanced activity was attributed to its unique structures assembled from 2D nanosheets with thickness of ca. 5-7 nm, leading to high specific surface area, wide range of pore size distribution and great efficiency in absorbing light and electron/hole separation. The hierarchical flower-like β-In 2 S 3 demonstrated great advantages in the treatment of various wastewater pollutants including textile dyes and antibiotics.
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
Journal of Cleaner Production
·
2022
·
IF 11.072
Zuming He,Muhammad Saboor Siddique,Hanpei Yang,Yongmei Xia,Jiangbin Su,Bin Tang,Lina Wang,Li Kang,Zhengyi Huang
Semiconductor photocatalytic technology is an effective strategy to cope with the current environmental issues . Therefore, the development of low-cost and environment-friendly catalysts with high efficacy has become a research focus and emphasis. Herein, novel Z-scheme In 2 S 3 /Bi 2 WO 6 core-shell structure composites were controllably prepared by template and hydrothermal route. Highly improved photocatalytic degradation of tetracycline hydrochloride (TCH) over In 2 S 3 /Bi 2 WO 6 core-shell composites was observed under visible-light (VL) irradiation (∼96.0%), which was 2.4 and 2.1 folds higher than that of In 2 S 3 and Bi 2 WO 6 , respectively. The excellent oxygen activation and catalytic performance was ascribed to the synergistic effects of built-in electric field to ensure easy charge exchange at the interface of In 2 S 3 and Bi 2 WO 6 , Z-scheme charge transfer path and the extended range of VL absorption . Superoxide radical (·O- 2) and hydroxyl (·OH) radicals were verified to be involved in the photocatalytic reaction by the active species capture experiment and the electron spin response (ESR) detection. The recycling experiments demonstrate the excellent stability and reusability of the In 2 S 3 /Bi 2 WO 6 . In addition, in accordance with the experimental results, the highly efficient Z-scheme photocatalytic mechanism and degradation paths were proposed. This work provided a new way for preparation of Z-scheme core-shell composites which had broad applications prospect in environmental remediation.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Lifang Yang,Aoqi Li,Tan Dang,Yunfei Wang,Liang Liang,Jun Tang,Yanjuan Cui,Zizhong Zhang
S-scheme In 2 S 3 /Zn 3 In 2 S 6 microspheres were successfully prepared through hydrothermal means for enhanced photocatalytic H 2 evolution with simultaneous photodegradation of bisphenol A. The microspheres were assembled by embedding 2D In 2 S 3 nanosheets into 2D-3D Zn 3 In 2 S 6 hierarchical microspheres to enhance visible light absorption and separation/migration of photo-excited charge carriers. In bisphenol A aqueous solution, the photocatalytic H 2 evolution rate on In 2 S 3 /Zn 3 In 2 S 6 shows 15.7 and 7.9-folds improvements against that of the individual In 2 S 3 and Zn 3 In 2 S 6 . Meanwhile, the degradation efficiency of bisphenol A is up to 95.8 %. The S-scheme charge transfer mechanism in In 2 S 3 /Zn 3 In 2 S 6 microspheres maximizes exerting the redox capability of Zn 3 In 2 S 6 for H 2 evolution and In 2 S 3 for bisphenol A degradation.
研究领域:
材料科学
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环境科学
·
化学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Xiaohui Ma,Chaojun Ren,Hongda Li,Xintong Liu,Xinyang Li,Kun Han,Wenjun Li,Yifei Zhan,Ajmal Khan,Zhidong Chang,Changyan Sun,Hualei Zhou
Currently, designing novel noble-metal-free photocatalysts with efficient carriers migration and catalytically active sites have been a researching hotspot in photocatalytic hydrogen evolution. In this paper, a novel noble-metal-free Mo 2 C-In 2 S 3 heterojunction was synthesized by a simple hydrothermal method. Morphology characterization revealed In 2 S 3 was attached to Mo 2 C. Electrochemical results showed Mo 2 C improved the interface conductivity, and promoted the transportation of photogenerated carriers. Under visible light, the optimal Mo 2 C-In 2 S 3 composite achieved a H 2 generation rate of 535.58 μmol h −1 g −1 , which was 175.6 and 25.8 times higher than pristine In 2 S 3 (3.05 μmol h −1 g −1 ) and In 2 S 3 -1% Pt (20.73 μmol h −1 g −1 ). In addition, a reasonable mechanism of the elevated photocatalytic activity was also discussed. This study demonstrates commercial Mo 2 C has an important effect of separating carriers and replacing Pt as co-catalyst in heterojunctions. This research also provides a method to design and synthesize new noble-metal-free photocatalysts for excellent hydrogen production activity.
研究领域:
材料科学
·
能源化学
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DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Junchang Liu,Weijie Yuan,Minghui Zhu,Zhiheng Hu,Di Wu,Xue-Yang Ji,Dafeng Zhang,Xipeng Pu
The overuse of antibiotics has led to severe environmental pollution, thereby making it increasingly important to efficiently degrade them. To address this, a unique S-scheme heterojunction of the In2S3/In2O3 nanocomposite was successfully constructed using hydrothermal coupled with in situ formation in this work. The optimized In2S3/In2O3 nanocomposite exhibited a significant photocatalytic degradation of tetracycline (TC), achieving an 83% removal rate within 60 min, with enhancements of 1.78 times for In2S3 and 1.66 times for In2O3. Characterization, experimental results, and density functional theory (DFT) calculation collectively prove the efficient transfer of photoexcited carriers between In2O3 and In2S3, coupled with the successful construction of the S-scheme heterojunction with a well-arranged band structure. A potential pathway for developing photocatalysts with exceptional antibiotic removal capabilities has been provided by enhancing their reduction and oxidation capabilities of the S-scheme heterojunction through rational structural configuration.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2021
·Vol. 127
·期 2
·1-11
·
IF 2.584
Hu Shuting,He Junfeng,Chen Fuming,Liu Bin,zhai Wangjian,He Qinyu
Constructing Z-scheme heterojunction photocatalyst with strong redox ability to make for enhanced photocatalytic performance and efficient charge separation is extremely attractive but still underdeveloped. Herein, a Z-scheme heterojunction structured La(OH) 3 @In 2 S 3 composite (labeled by “LIS”) with photocatalytic for the methylene orange (MO) degradation under simulated light irradiation has been developed. The as-prepared LIS, together with commercial La(OH) 3 and pure In 2 S 3 fabricated with the identical processing method and starting materials as those of LIS, was characterized by X-ray diffraction, UV–vis diffuse reflectance spectra, scanning electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, photoluminescence spectra and electrochemical impedance spectroscopy. The results show the heterojunction of La(OH) 3 /In 2 S 3 has prolonged the lifetime of the photo-generated carriers. The photocatalytic activity test shows that over only a small amount (0.02 g in 100 ml MO) of LIS, the photodegradation rate of 95% toward MO can be obtained in 90 min, which is about 3.4 times higher than that over pure In 2 S 3 . The active species trapping experiments indicate that there were four active species playing roles in photodegradation as the following order: e – = ∙OH < h + < ∙O 2 – . A mechanism of Z-scheme heterojunction was proposed and well explained the enhanced photocatalytic performance. This work provides a new cost-effective photocatalyst with high photocatalytic properties.
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
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Jushi Weng,Jun Chen,Yifei Xu,Xinru Hu,Chuangyun Guo,Yang Yang,Jingyi Sun,Lianshe Fu,Qing Wang,Jiamin Wei,Tinghai Yang
Increasing the exposure of active sites and improving the intrinsic activity are necessary considerations for designing a highly efficient photocatalyst. Herein, an In 2 S 3 /AgI stable Z-scheme heterojunction with highly dispersed AgI nanoparticles (NPs) is synthesized by the mild self-templated and in-situ ion exchange strategy. Impressively, the optimized In 2 S 3 /AgI-300 Z-scheme heterojunction exhibits superior photodegradation activity (0.020 min −1 ) for the decomposition of insecticide imidacloprid (IMD), which is extremely higher than that of pure In 2 S 3 (0.002 min −1 ) and AgI (0.013 min −1 ). Importantly, the three-dimensional excitation-emission matrix (3D EEMs) fluorescence spectra, high-resolution mass spectrometry (HRMS), the photoelectrochemical tests, radical trapping experiment, and electron spin resonance (ESR) technique are performed to clarify the possible degradation pathway and mechanism of IMD by the In 2 S 3 /AgI-300 composite. The enhanced photocatalytic performance is attributed to the highly dispersed AgI NPs on hierarchical In 2 S 3 hollow nanotube and the construction of In 2 S 3 /AgI Z-scheme heterojunction, which can not only increase active site exposure, but also improve its intrinsic activity, facilitating rapid charge transfer rate and excellent electron-hole pairs separation efficiency. Meanwhile, the practical application potential of the In 2 S 3 /AgI-300 composite is systematically investigated. This study opens a new insight for designing catalysts with high photocatalytic performance through a convenient approach.
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
PubMed
高影响因子
Nanoscale
·
2018
·Vol. 10
·期 16
·7860-7870
·
IF 7.233
Dandan Ma,Jian-Wen Shi,Yajun Zou,Zhaoyang Fan,Jinwen Shi,Linhao Cheng,Diankun Sun,Zeyan Wang,Chunming Niu
A novel flower-like In2S3/CdIn2S4/In2O3 (ICS) ternary heterostructure (HS) is rationally constructed for the first time by a series of carefully designed procedures. In2O3 nanoflakes are the main constituent units which assemble into a flower-like skeleton structure, and CdIn2S4 nanoparticles are in situ generated on the surface of In2O3 nanoflakes through the transformation of CdS quantum dots (QDs) while In2S3 nanoparticles are in situ produced at the region between CdIn2S4 nanoparticles and In2O3 nanoflakes resulting from a synchronous sulfuration procedure. As expected, the rationally designed ICS ternary HSs display significantly enhanced photocatalytic H2 production, especially ICS5 (sulfurized for 5 h) with the highest H2 evolution rate of 20.04 μmol h−1 (10 mg catalyst is used for photocatalytic reaction), which is 26.7 times and 2.6 times higher than that of pure In2O3 (0.75 μmol h−1) and In2S3/In2O3 binary HS (7.88 μmol h−1), respectively. The enhanced photocatalytic activity can be attributed to the multiple interfaces formed in the ICS HSs, including the CdIn2S4–In2O3 interface, the In2S3–In2O3 interface, and the CdIn2S4–In2O3–In2S3 interface, which construct multiple pathways for the transfer of photogenerated charge carriers, effectively promoting the photocatalytic hydrogen production.
研究领域:
材料科学
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化学
·
纳米技术
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光催化
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2014
·
IF 2.726
Chengbin Liu,Deshui Meng,Yue Li,Longlu Wang,Yutang Liu,Shenglian Luo
A unique hierarchical architecture of ZnS–In 2 S 3 solid solution nanostructures onto TiO 2 nanofibers (TiO 2 @ZnS–In 2 S 3 ) has been successfully fabricated by simple hydrothermal method. The ZnS–In 2 S 3 solid solution nanostructures exhibit a diversity of morphologies: nanosheet, nanorod and nanoparticle. The porous TiO 2 nanofiber templates effectively inhibit the aggregation growth of ZnS–In 2 S 3 solid solution. The formation of ZnS–In 2 S 3 solid solution is proved by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) and the intimate contact between TiO 2 nanofibers and ZnS–In 2 S 3 solid solution favors fast transfer of photogenerated electrons. The trinary TiO 2 @ZnS–In 2 S 3 heterostructures exhibit high adsorption capacity and visible light photocatalytic activity for the degradation of rhodamine B dye (RhB), remarkably superior to pure TiO 2 nanofibers or binary structures (ZnS/TiO 2 nanofibers, In 2 S 3 /TiO 2 nanofibers and ZnS–In 2 S 3 solid solution). Under visible light irradiation the RhB photocatalytic degradation rate over TiO 2 @ZnS–In 2 S 3 heterostructures is about 16.7, 12.5, 6.3, 5.9, and 2.2 times that over pure TiO 2 nanofibers, ZnS nanoparticles, In 2 S 3 /TiO 2 nanofibers, ZnS/TiO 2 nanofibers, and ZnS-In 2 S 3 solid solution, respectively. Furthermore, the TiO 2 @ZnS–In 2 S 3 heterostructures show highly stable recycling performance.
研究领域:
材料科学
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环境科学
·
化学工程
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Boyi Yan,Zhongqiao Sun,Yide Han,Hao Meng,Xia Zhang
The construction of a tightly contacted heterojunction consisting of multi-components is proven to be one of the effective strategies to promote the photogenerated charges separation and to develop high-efficient photocatalysts in hydrogen evolution . Herein, a ternary hollow heterostructure of ZnS/ZIS/In 2 S 3 has been fabricated by using a binary MOF@MOF (ZIF-8@MIL-68(In)) as the precursor, and an in-situ sulfurization of ZIF-8@MIL-68(In) is controlled to optimize the photocatalytic performances. The resulting samples are signed as Z@M- t , where the t is pointed to the sulfurization time being varied from 4 h to 48 h. It’s shown that the hierarchical and hollow architecture is formed for Z@M- t , and with the reinforced light harvest ability in both UV and visible light regions. In the subsequent visible-light-induced photocatalytic hydrogen generation, the optimized Z@M-24 manifests significantly improved hydrogen evolution rate of 607.34 μmol g -1 h −1 , which values are evidently higher than that by the single MOF and binary ZIF-8@MIL-68(In) heterostructure. The electrochemical analyses and the electron paramagnetic resonance (EPR) spectrum were analyzed to clarify the charge transfer routes and the enhanced photocatalytic mechanism, in which the contribution of each metal sulfide is also discussed. Finally, the good photocatalytic stability and reusability of Z@M-24 heterostructure are also represented, which define the structure superior brought by the effective heterojunction based on the in-situ sulfurization strategy of binary ZIF-8@MIL-68(In), and determine their prospect applications in the efficient H 2 production under visible light irradiation.
研究领域:
材料科学
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化学
·
光催化
·
纳米技术
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产品关联
DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 8
·4975-4989
·
IF 3.9
Jianrou Li,Zhuangzhuang Yin,Jun Guo,Wei Gan,Ruixin Chen,Miao Zhang,Zhaoqi Sun
In this study, Sb2S3/In2S3/TiO2 (SIT) heterojunction photocatalysts were prepared by a simple two-step hydrothermal method and applied to the photocatalytic degradation of levofloxacin (LEV). After 160 min of reaction under visible light, the SIT heterojunction photocatalyst degraded 10 mg L−1 LEV at a rate of 86.7%. The degradation of LEV follows pseudo-first-order kinetics with a rate constant 1.16 × 10−2 min−1, which is 1.42, 1.22 and 1.05 times higher than that of TiO2, SI and IT, respectively. Meanwhile, the SIT photocatalysts also showed high photocatalytic activity for other antibiotics. The enhanced photocatalytic activity of the ternary heterostructures was attributed to the full-spectrum response and the synergistic effect of the dual Z-type heterojunctions, which improved the visible light absorption and facilitated the charge separation. In addition, ˙OH and ˙O2− play a dominant role in the photodegradation process. This work contributes to the design of novel photocatalytic materials with dual Z-type heterojunctions and efficient photocatalysts for the degradation of antibiotics.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2019
·
IF 5.107
Jingjing Xu,Chen Liu,Junfeng Niu,Mindong Chen
In this work, one kind of novel visible light responsive photocatalysts, In 2 S 3 decorated KNbO 3 nanocubes (KNOIS), were successfully synthesized through a facile in-situ growth method. The performance of the obtained nanocomposites was studied by photocatalytic degradation of tetracycline hydrochloride (TC) and Rhodamine B (RhB) under the irradiation of visible light. Results illustrated that the KNOIS nanocomposites had much higher performance than pure In 2 S 3 and KNbO 3 . The influence of In 2 S 3 amount on the performance of the composites was also studied. Results showed that KNOIS-10 nanocomposite exhibited the best photocatalytic efficiency for TC and RhB degradation. In the degradation of RhB, the apparent rate constant of KNOIS-10 was 0.044 min −1 , which was about 22 and 11 times as that of pure KNO (0.0020 min −1 ) and In 2 S 3 (0.0040 min −1 ), respectively. The trapping experiments suggested that hydroxyl radicals and holes were two main species for the photocatalytic degradation of RhB by KNOIS. Furthermore, the mechanism on the photocatalytic activity enhancement was proposed relied on the experiments and characterization results. The formed p-n heterojunction enhanced the separation efficiency of photo-induced charges. This work would provide a good example for the preparation of niobate based composite photocatalysts with high photocatalytic activity for environmental remediation.
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
危险品化学品经营许可证（带存储）