JOURNAL OF HAZARDOUS MATERIALS
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2021
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IF 10.588
Kailian Zhang,Man Zhou,Kai Yang,Changlin Yu,Ping Mu,Zhenzhen Yu,Kangqiang Lu,Weiya Huang,Wenxin Dai
The low-usage of solar energy and the sluggish separation efficiency of the photogenerated electrons/holes pairs are the obstacles in the practical application of photocatalysts. The integration of upconversion and Z-scheme heterojunction is expected to break the barriers to achieve the efficient charge separation and broaden near-infrared light absorption . Herein, an effective indirect Z scheme AgInS 2 /In 2 S 3 heterostructure with carbon quantum dots (CQDs, as the electron conduction medium) and Lu 3 NbO 7 :Yb, Ho (as upconversion function) has been successfully synthesized. Consequently, the Lu 3 NbO 7 : Yb, Ho/CQDs/AgInS 2 /In 2 S 3 heterostructure exhibited superior photocatalytic activities for Cr(VI) reduction and H 2 O 2 production, reducing 99.9% of Cr(VI)(20 ppm, 15 min) and 78.5% of Cr(VI) (40 ppm, 30 min) with visible light irradiation as well as 94.0% of Cr(VI) (20 ppm, 39 min) under NIR light irradiation. Simultaneously, the heterostructure could generate 902.9 μM H 2 O 2 for 5 h under visible light irradiation. The intensive photocatalytic properties could primarily be attributed to the boosted light absorption capacity, the improved solar-to-energy conversion by the remarkable upconversion capacity of Lu 3 NbO 7 : Yb, Ho/CQDs and the faster charge transfer through a Z-schematic pathway. This work is anticipated to open a novel “window” for designing the efficient photocatalysts by coupling of Lu 3 NbO 7 : Yb, Ho and CQDs.
研究领域:
材料科学
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环境科学
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光化学
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纳米技术
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DOI
PubMed
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Yating Ai,Sónia A.C. Carabineiro,Xianqiang Xiong,Huayue Zhu,Qi Wang,Bo Weng,Min-Quan Yang
Emerging contaminants in water sources present serious environmental and health risks, creating an urgent need for efficient and reliable treatment strategies. Photocatalytic advanced oxidation processes (AOPs) provide rapid reaction rates and strong oxidation capabilities, however, comprehensive evaluations of wastewater treatment, including degradation pathways, toxicity assessments and mechanistic insights, remain underexplored in the literature. This study presents novel S-scheme Mn 0.5 Cd 0.5 S/In 2 S 3 (MCS/IS) photocatalysts for efficient degradation of antibiotic pollutants, with a particular focus on tetracycline hydrochloride (TCH). The optimized MCS/IS photocatalyst demonstrates exceptional degradation efficiency and robust resistance to inorganic anions. Additionally, a continuous-flow wastewater treatment system, using an MCS/IS membrane, demonstrates outstanding stability in TCH photodegradation. Utilizing response surface methodology and Fukui function analysis, the effects of various parameters on photocatalytic degradation rates, along with the associated pathways and intermediate products, have been thoroughly investigated. Toxicity assessments confirm the environmental safety of the treated effluents. Mechanistic studies show that the S-scheme heterojunction in the MCS/IS photocatalyst improves electron-hole separation, thereby enhancing photocatalytic performance. It is expected that this study will serve as a model for advancing the removal of emerging contaminants, further enhancing photocatalytic AOPs as sustainable water purification technologies.
研究领域:
环境科学
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水处理技术
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光催化
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材料科学
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毒理学
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化学工程
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DOI
高影响因子
Surfaces and Interfaces
·
2024
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IF 5.7
Bing Lv,Qi Wang,Yuhong He,Lanlan Zhang,Wenzhong Wang
In this study, we demonstrate for the first time a promising photoanode of Fe 2 V 4 O 13 /In 2 S 3 (FVO/IS) nanoparticles (NPs) for photoelectrochemical (PEC) water splitting. Most importantly, this work presents the first application of X-ray photoelectron spectroscopy in tracking electron flow direction within FVO/IS to reveal the formation of heterojunction having the electron flow from IS to FVO. Mott-Schottky measurement confirms that the modification of IS NPs establishes the type II heterojunction between FVO and IS, favorable for the transport and separation of carriers. Spectral measurements of electrochemical impedance spectroscopy , photoluminescence and Bode diagram confirm the effective separation of carriers and the prolongation of the charge lifetime in the FVO/IS heterojunction photoanode. Moreover, the electrochemical measurements evidently demonstrate the substantial enhancement in the charge separation efficiency ( η separation ) and charge transfer efficiency ( η transfer ) of the photoanode, leading to significantly enhanced PEC water splitting capability. As a result, in contrast with the pure FVO NPs photoanode, the photocurrent density of the constructed FVO/IS NPs photoanode is increased by 27 times without bias. This study paves a new approach for boosting the PEC water splitting activity of FVO photoanodes by constructing heterostructures through modification with other semiconductors.
研究领域:
材料科学
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电化学
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光电化学
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纳米技术
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2019
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IF 14.229
Huichang Xu,Yu Wang,Xiaoli Dong,Nan Zheng,Hongchao Ma,Xiufang Zhang
The synthesis of a novel In 2 O 3 /In 2 S 3 microsphere heterostructures is conducted through a well-designed two-step hydrothermal method. These composites are first applied for efficient fixation of N 2 to NH 3 under mild conditions without any organic scavengers and precious-metal cocatalysts. Here the In 2 S 3 flakes are in situ generated and uniformly assembled on In 2 O 3 microsphere. The phase structures, morphologies and oxygen vacancies of the samples are systematically characterized by X-ray powder diffraction (XRD), field-emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–vis diffuse-reflectance spectroscopy (DRS), and photoluminescence spectroscopy (PL), Raman, electron spin resonance (ESR) spectroscopy and photoelectrochemistry. Meanwhile, the investigation of photocatalytic performance can confirm that the nitrogen fixation rate of In 2 O 3 /In 2 S 3 (III) heterostructure is 40.04 μmol g −1 h −1 , which is about 4.7 and 6.0 times higher than that of pure In 2 O 3 and In 2 S 3 , respectively.
研究领域:
材料科学
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催化
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化学工程
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光化学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
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IF 8.6
Yuxin Liu,Yiqiang He,Chunguang Li,Zhan Shi,Shouhua Feng
Photocatalytic technology is considered a sound solution to exploit hydrogen energy. Currently, photocatalytic hydrogen production and organic synthesis under simulated sunlight simultaneously have enormous practical significance. Herein, we synthesized Ni@C metal nanoparticles cocatalyst to form a composite photocatalyst with Indium-vacancy-rich In 2 S 3 by the electrostatic self-assembly method. The composite exhibited a hydrogen production rate of 3.52 mmol·g −1 ·h −1 and coupling of benzylamine 8.37 mmol·g −1 ·h −1 . X-ray photoelectron spectroscopy and density functional theory explored the reaction process and mechanism. The charge density difference of the heterojunction surface revealed that the Ni@C interacted with the substrate via both electrostatic interaction and chemical bonds. This confirmed that the electrons rapidly transferred to the cocatalyst under the irradiation of visible light, which was conducive to the surface reduction reaction and greatly inhibited the photogenerated carrier recombination. Moreover, hydrogen adsorption energy further explained the synergistic effect of co-modification of the defect and the fact that noble-metal-free cocatalyst could improve photocatalytic efficiency. This work offers insights into the preparation of new types of photocatalysts which produce hydrogen and high-value chemicals in the future.
研究领域:
材料科学
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化学工程
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催化
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能源材料
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光化学
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DOI
高影响因子
ACS Applied Nano Materials
·
2023
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IF 5.9
Shi Kun Wang,Ao Chen Wang,Chao Yue Zhang,Qian Yu Liu,Jun Di Cheng,Yan Chun Wang,Xiu Ping Gao,Qing Feng Xie,Zhen Xing Zhang,Geng Zhi Sun,Xiao Jun Pan,Jin Yuan Zhou
Core–shell heterojunction nanostructure-based sensors often suffer from the blocking effect from the shell layer. Here, a type of sandwich-structured hollow nanofiber of In2S3/In2O3/In2S3 (ISOS HNF) was designed via an electrospinning technique combining with postvulcanization treatments. The resultant ISOS HNF possesses double In2S3/In2O3 heterointerfaces at both sides of In2O3 tube walls, which highly enhance the junction effect on the electron transport during the gas-sensing processes. Also, the two In2S3 coatings are particle-filled and porous, which often allows the target gas to easily diffuse through them to the In2O3 core. As a result, toward 100 ppm ethanol at a work temperature of 200 °C, the ISOS HNF sensors show a high response improved by 23% and 76% compared to those of the In2S3/In2O3 core–shell NF and In2O3 HNF ones, respectively. Moreover, the ISOS HNF sensors also exhibit a fast response/recovery rate (<1 s/25 s) and a good gas selectivity property. Series analysis indicates that this highly improved response is mainly due to the double In2S3/In2O3 heterointerfaces and increased O vacancies, the accelerated response/recovery rate is due to the double-constructed heterojunction and the suitable mesopores in the coatings, and the improved gas selectivity is due to the In2S3 shell.
研究领域:
材料科学
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传感器技术
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DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2019
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IF 2.291
Hongjun Fang,Yusong Pan,Minyun Yin,Linfeng Xu,Yuan Zhu,Chengling Pan
Ternary Ti 3 C 2 –OH/ln 2 S 3 /CdS composites with an efficient visible-light-driven photocatalytic performance have been prepared via a facile hydrothermal synthesis method. The photo-degradation experiments verified that Ti 3 C 2 –OH/ln 2 S 3 /CdS composite with a large surface area of 68.2 m 2 /g exhibited an enhanced photocatalytic activity and adsorption capacity towards Rhodamine B under visible light irradiation , which was higher than that of the naked CdS and ln 2 S 3 , respectively. Furthermore, Ti 3 C 2 –OH/ln 2 S 3 /CdS composite showed robust degradation efficiency for mixture dyes of RhB and Methyl Orange (MO), and its catalytic ability was superior to that of ternary GO/ln 2 S 3 /CdS composite. The trapping experiments for active species revealed that hole (h + ) and • O 2 − species played a critical role in the removal of organic pollutants. In summary, the enhanced photocatalytic performance of Ti 3 C 2 –OH/ln 2 S 3 /CdS photocatalyst was derived from an excellent charge carrier separation and transfer of Ti 3 C 2 –OH MXene and the synergistic effect between CdS and ln 2 S 3 which resulting in strong visible light response.
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
Nature Communications
·
2025
·Vol. 16
·期 1
·10501
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IF 15.7
Zhu Qiong,Su Jingjing,Lin Guoan,Li Guisheng,Zhuo Zhiwen,Wang Weiyi,Li Jialin,Xu Xiaoxiang
Photocatalytic oxygen reduction reaction (ORR) represents a green and cost-effective means to produce the high-value industrial compound H 2 O 2 . However, the efficient H 2 O 2 synthesis awaits in-depth knowledge of the ORR mechanisms for the design of highly active photocatalysts. In this work, surface indium vacancies (denote hereafter as V In ) have been introduced into In 2 S 3 , which significantly boosts the photocatalytic activity for H 2 O 2 production, with an optimal H 2 O 2 generation rate of 4.77 ± 0.05 mmol·h −1 ·g cat. −1 under visible light illumination (λ ≥ 420 nm) and an apparent quantum efficiency (AQE) of 7.49 ± 0.01% at 420 ± 20 nm. Mechanistic analysis reveals the multifunctionality of V In , such as enlarging the chemisorption capacity of O 2 , enriching photo-generated electrons for ORR, endorsing high reducing power to photo-generated electrons, and promoting H 2 O 2 desorption. These findings justify that surface cation vacancies open up new possibilities for H 2 O 2 photosynthesis by leveraging their reaction dimensions in ORR.
研究领域:
材料科学
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光催化
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环境化学
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能量转换
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DOI
PubMed
高影响因子
ACS Applied Nano Materials
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2025
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IF 5.5
Jin Li,Zhujun Chen,Xin Li,Bingshuang Li,Pengxuan Wu,Xiaoxi Huang
Indium sulfide-based electrocatalysts often suffer from the reduction of In3+ to In0 species in the electrocatalytic CO2 reduction reaction (CO2RR), and this dynamic transformation leads to undesired hydrogen evolution reaction. Promoting the stability of high-valent In3+ species under operating conditions is a challenging but important task for maintaining their excellent electrocatalytic activity. In this work, In2S3 electrocatalysts with controllable crystallinity are synthesized by a hydrothermal reaction at a tunable temperature. The low-crystalline In2S3-1 exhibits more abundant defective and amorphous/crystalline interface structures compared with the high-crystalline ones, thus endowing the low-crystalline In2S3-1 with a higher formate faradaic efficiency (FEformate) of 91.6% at −1.45 V vs RHE in the H-type cell compared with the high-crystalline In2S3-3 (FEformate = 79.3%). This improved electrocatalytic activity can be attributed to its abundant defect structures and amorphous/crystalline interface structures with robustly high-valent In3+ species under the operating conditions. In situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy results reveal the *OCHO reaction pathway. Density functional theory (DFT) calculations indicate that defective structures, such as sulfur vacancies, play an important role in lowering the energy barrier for the key intermediate *OCHO formation. This work provides important insight into defect engineering to promote CO2RR.
研究领域:
材料科学
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电化学
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环境科学
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DOI
高影响因子
ELECTROANALYSIS
·
2023
·Vol. 35
·期 12
·e202300242
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IF 3
Zhishan Zhang,Fan Cai,Shijia Wu,Shimu Luo,Yao Lin,Tingjin Zheng
This work presents a split-type photoelectrochemical (PEC) immunoassay platform for ultrasensitive determination carcinoembryonic antigen (CEA) using In 2 O 3 /In 2 S 3 nanocolumn as the photoactive matrix. Initially, In 2 O 3 /In 2 S 3 nanocolumn with high photocurrent response was obtained by vulcanizing metal-organic framework-derived hollow In 2 O 3 nanomaterials for surface modification. Subsequently, sandwich immunoreactions were conducted utilizing an alkaline phosphatase-labeled secondary antibody that served as a signal pointer. A large amount of ascorbic acid was produced by the biocatalytic reaction, which enhanced the anodic photocurrent of the In 2 O 3 /In 2 S 3 nanocolumn-modified electrode. Under optimized conditions, the In 2 O 3 /In 2 S 3 nanocolumn-based PEC immunoassay exhibited a promising photocurrent response to the target CEA in the operational scope of 0.02 ng/mL to 10 ng/mL, with a limit of detection of 8.4 pg/mL. Benefiting from the excellent photoelectrochemical response of In 2 O 3 /In 2 S 3 nanocolumn to ascorbic acid and the separated detection operation, the constructed PEC immunosensing platform has the advantages of great precision and strong anti-jamming capability, and the detection results are comparable to those of commercial ELISA kits. Collectively, this study not only offered an efficacious semiconducting surface modification strategy to enhance photocurrent response activity, but also offered a novel thought for the sensitive measurement of a marker of cancer.
研究领域:
分析化学
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生物分析化学
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纳米材料
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生物传感器
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癌症诊断
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Bo Yu,Yuxuan Wu,Fanming Meng,Qian Wang,Xueqiang Jia,Muhammad Wasim Khan,Caimei Huang,Shuyi Zhang,Li Yang,Hao Wu
Employing photocatalytic technology to promote CO 2 photoreduction into carbon fuels is of great significance to the field of renewable energy. Herein, the hierarchical Bi 2 MoO 6 @In 2 S 3 heterostructured nanotubes rich in surface oxygen vacancies (SOVs) are synthesized by a multi-step control strategy for visible-light-driven CO 2 reduction. The combination of density functional theory (DFT) calculations and in-situ X-ray photoelectron spectroscopy (ISI-XPS) confirms the existence of the S-scheme charge transfer mechanism and SOVs, which will accelerate the separation of charges and ameliorate the redox capability. Additionally, the unique hierarchical hollow architectures also effectively promote the efficiency of light utilization and provide abundant reactive sites. Consequently, the optimized Bi 2 MoO 6 -SOVs@In 2 S 3 heterogeneous nanotubes display remarkable activity under visible light irradiation, with the yield rate and selectivity for CO-generation are 28.54 μmol g -1 h −1 and 94.1%, respectively. This work provides new opportunities for the design of hierarchical hollow heterojunctions with an S-scheme charge transfer mechanism for effective photocatalytic CO 2 reduction.
研究领域:
材料科学
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环境科学
·
能源科学
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
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IF 6
Wenhui Yu,Qianglin Hao,Chao Zhang,Duo Sun,Shengping Ruan,Lili Wang
With its distinct layered structure, large specific surface area, and quick charge carrier transport capabilities, two-dimensional (2D) metal sulfide In 2 S 3 has emerged as a very promising gas sensing material. In this work, flower-like In 2 S 3 materials rich in sulfur vacancies (Sv) are generated using a vacancy engineering technique, and their gas-sensing performance for triethylamine (TEA) is thoroughly studied. The number of active sites on the material's surface and the effectiveness of electron transfer were greatly increased by precisely controlling sulfur vacancy defects by the modification of the sulfur source's concentration. With a working temperature as low as 160 °C, a response time of just 4 s, and a response value of 8.2 for 100 ppm TEA, the produced Sv-In 2 S 3 -2 sensor has exceptional TEA detection capabilities. It also demonstrated long-term stability and outstanding selectivity. In order to improve the TEA gas-sensing capabilities of In 2 S 3 materials, this study demonstrates that the addition of sulfur vacancies can yield a large number of Lewis acidic sites and reactive centers.
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高影响因子
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