INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
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IF 8.1
Tian-Long Xi,Li-jun Liu,Qi Liu,Hong-Wei Wang,Lu-Yang Zuo,Hui-Tao Fan,Bo Li,Li-Ya Wang
Semiconductor materials have become the primary photocatalysts for photocatalytic hydrogen production. However, the design and synthesis of effective photocatalytic materials with excellent electron/hole separation efficiency, fast charge transfer, and low carrier recombination rate still face great challenge. Herein, hollow p-n heterojunction MoS 2 @ZnIn 2 S 4 nanoboxes are synthesized for the first time by growing n-type ZnIn 2 S 4 (ZIS) two-dimensional nanosheets on the surface of p-type hollow MoS 2 nanoboxes (MSNBs), which exhibits obvious photocatalytic activity. Among them, 5% MSNBs@ZIS photocatalyst shows the highest hydrogen production efficiency of 22.25 mmol h -1 g -1 , which is 7.3 times that of pure ZIS. The high photocatalytic hydrogen production efficiency of 5% MSNBs@ZIS can be attributed to the formation of hollow structure and p-n heterojunction, which can provide a large number of catalytic active sites, large surface area, and can effectively promote the separation of photogenerated carriers, respectively.
研究领域:
材料科学
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能源科学
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产品关联
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2023
·
IF 4.1
Xuefeng Bai,Han Zhang,Sijia Sun,Jie Wang,Yu Tu,Hao Ding
Defect engineering and heterojunction are the two dominant methods to improve the efficiency of semiconductor photocatalysis . Loading can also improve the performance of photocatalysts and solve the problems of photocatalyst agglomeration and difficult recovery in water. In this paper, a ternary ZnIn 2 S 4 /TiO 2 /MS-SiO 2 composite photocatalyst (EG-ZIS/TS) was constructed by sequentially loading nano-TiO 2 and defective state ZnIn 2 S 4 (EG-ZIS) on industrial by-product SiO 2 microspheres (MS-SiO 2 ). Among them, EG-ZIS was prepared with ethylene glycol as a solvent. Compared with EG-ZIS/T (unloaded MS-SiO 2 ) and ZIS/TS (non-defected state ZnIn 2 S 4 ), the degradation performance of methyl orange (MO) solution and the reduction performance of hexavalent chromium under simulated daylight irradiation were substantially improved. As a result, Zn defects enhanced the photocatalytic performance of ZnIn 2 S 4 and the heterojunction between ZnIn 2 S 4 and TiO 2 , and this enhancement was achieved by adjusting the work function of the system and promoting interface electronic transmission. The loading of MS-SiO 2 further produced a synergistic effect of enhancing the heterojunction photocatalytic efficiency by improving the dispersion and immobilization of TiO 2 and EG-ZIS. The effect of ethylene glycol on the curvature and surface Zn defectivity of ZnIn 2 S 4 nanosheets was also investigated in this study. This study provides an innovative approach to improve the oxidation and reduction performance of photocatalysts by combining semiconductor defect, heterojunction, and loading on the carrier surface and finds that the loading of photocatalysts on the SiO 2 carrier surface has an enhancement effect on the performance of the formed heterojunction. This thesis is useful and informative for related research.
研究领域:
材料科学
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环境科学
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化学
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纳米技术
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Dong Feng,Tingyuan Zhang,Jiajia Wang,Wei Wang,Keying Lin,Baojun Ma,Fuxiang Zhang
The capacitance effect of semiconductor photocatalysts for hydrogen production is significant; however, the intrinsic role of capacitance in relation to the morphologies of photocatalysts remains unclear. Herein, we designed three different morphologies of ZnIn 2 S 4 semiconductor material—spherical, bulk, and rod-like—to determine their capacitance. In this study, the small capacitance characteristics of spherical ZnIn 2 S 4 (0.363F/g) enabled photoelectrons to quickly transfer to the surface and participated in the photocatalytic hydrogen evolution reaction, leading to a photocatalytic activity of 159 μmol/h/g. When TiVAlC nanoparticle with M n+1 AX n (MAX) nanostructure was employed as efficient co-catalyst, TiVAlC/ZnIn 2 S 4 -S achieved an increased activity of 285 μmol/h/g at 420 nm, which was 1.75 times that of TiVAlC/ZnIn 2 S 4 -B and 2.39 times that of TiVAlC/ZnIn 2 S 4 -R. This enhanced performance was attributed to the synergistic effect of the high-efficiency semiconductor photocatalyst ZnIn 2 S 4 -S with small capacitance and the superior conductivity of the Mxene material TiVAlC.
研究领域:
材料科学
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能源技术
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产品关联
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 11
·4520
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IF 4.6
Xiangrui Feng,Hongji Chen,Hongfei Yin,Chunyu Yuan,Huijun Lv,Qian Fei,Yujin Zhang,Qiuyu Zhao,Mengmeng Zheng,Yongzheng Zhang
ZnIn2S4(ZIS) is widely used in the field of photocatalytic hydrogen production due to its unique photoelectric properties. Nonetheless, the photocatalytic performance of ZIS usually faces problems of poor conductivity and rapid recombination of charge carriers. Heteroatom doping is often regarded as one of the effective strategies for improving the catalytic activity of photocatalysts. Herein, phosphorus (P)-doped ZIS was prepared by hydrothermal method, whose photocatalytic hydrogen production performance and energy band structure were fully studied. The band gap of P-doped ZIS is about 2.51 eV, which is slightly smaller than that of pure ZIS. Moreover, due to the upward shift of its energy band, the reduction ability of P-doped ZIS is enhanced, and P-doped ZIS also exhibits stronger catalytic activity than pure ZIS. The optimized P-doped ZIS exhibits a hydrogen production rate of 1566.6 μmol g−1h−1, which is 3.8 times that of the pristine ZIS (411.1 μmol g−1h−1). This work provides a broad platform for the design and synthesis of phosphorus-doped sulfide-based photocatalysts for hydrogen evolution.Keywords:ZnIn2S4;phosphorus doping;photocatalytic;hydrogen generation
研究领域:
材料科学
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能源科学
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产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2023
·Vol. 42
·期 4
·1195-1204
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IF 8.8
Dong Wei,Zhou Shi-An,Ma Yan,Chi Dian-Jun,Chen Rong,Long Hong-Ming,Chun Tie-Jun,Liu Sheng-Jun,Qian Fu-Ping,Zhang Kui
Designing a heterojunction photocatalyst to improve the separation efficiency of photogenerated electrons and holes is of great significance to improve the hydrogen production efficiency. In this work, we report a rational design to grow ZnIn 2 S 4 on Mo-MOF-derived N-doped C-coated MoO 2 (MOZIS), and it has excellent photocatalytic hydrogen production with triethanolamine (TEOA) as sacrificial agent. N-doped C improves the electron transport efficiency between MoO 2 and ZnIn 2 S 4 . The systematic study shows that MOZIS has good properties to promote the effective separation and transfer of photocatalytic charges, which is attributed to the tight contact interface and good energy band structure between MoO 2 and ZnIn 2 S 4 . The optimized nanocomposites have a high hydrogen production efficiency of 10.89 mmol·g −1 (4 h) under visible light. MOF-derived N-doped C-coated MoO 2 is an effective strategy to improve the photocatalytic hydrogen production efficiency of ZnIn 2 S 4 . Graphical abstract
研究领域:
材料科学
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能源科学
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产品关联
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
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2024
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IF 3.2
Huiqin Ma,Zhuxiang Mao,Wen Liu,Yahao Zhao,Peng Liu,Difu Zhan,Qian Fu,Yizhong Huang,Changcun Han
ZnIn2S4 (ZIS) is an N-type direct bandgap semiconductor material with a visible light response, which exhibits excellent photocatalytic water-splitting performance. To enhance ZIS-based photocatalysts, heterojunction construction and cocatalyst loading methods have been explored extensively. In this research, a Co9S8/ZnIn2S4 (CS/ZIS) heterojunction was successfully synthesized via a solvothermal method, and then Ni(OH)2 nanoparticles were successfully loaded on CS/ZIS by photodeposition, yielding the Ni(OH)2/CS/ZIS photocatalyst. Our findings reveal tight coupling of ZIS nanosheets with the CS surface, establishing an effectively constructed heterojunction structure that enhances interface charge transfer and light absorption. The synergistic effect of CS and Ni(OH)2 significantly boosts the photocatalytic hydrogen production of ZIS composites. The optimum hydrogen production rate of CS/ZIS is 10.06 mmol·h–1·g–1 and that of Ni(OH)2/CS/ZIS reaches 12.92 mmol·h–1·g–1, a 11.9-fold increase over pure ZIS, with exceptional light stability. Furthermore, we discuss the photocatalytic reaction mechanism based on the experimental and characterization results. This work presents a novel approach to designing highly efficient photocatalysts using ZnIn2S4, aimed at enhancing the conversion of solar energy into chemical energy.
研究领域:
材料科学
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能源化学
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纳米技术
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产品关联
DOI
高影响因子
Journal of Energy Chemistry
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2022
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IF 13.599
Wen Li Jia,Wen Jing Li,Hai Yang Yuan,Xuefeng Wu,Yuanwei Liu,Sheng Dai,Qilin Cheng,Peng Fei Liu,Hua Gui Yang
Surface modification by metal ion has been considered a promising strategy to enhance the photocatalytic activity by extending optical response and improving charge separation and transportation. Here, univalent copper species were modified on ZnIn 2 S 4 photocatalyst via an in-situ photodeposition method, exhibiting a much higher H 2 evolution rate of 41.10 ± 3.43 mmol g −1 h −1 and an impressive apparent quantum efficiency (AQE) of 20.81% at 420 ± 15 nm. Our characterizations indicate that the surface modification by copper species can broaden light utilization as well as promote charge separation and transportation. Besides, the density functional theory (DFT) results further exhibit that the energy levels (LUMO and HOMO) for copper-surface modified ZnIn 2 S 4 present spatial separation, locating on the Zn-S and In-S layers, respectively, which can suppress the recombination of electron and hole and thus achieves higher photocatalytic H 2 evolution efficiency.
研究领域:
材料科学
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能源化学
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理论计算
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2023
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IF 6.7
Lijun Liu,Luyang Zuo,Rui Li,Tianlong Xi,Huitao Fan,Bo Li,Liya Wang
Semiconductor photocatalytic hydrogen evolution (PHE) is used to convert solar energy to hydrogen energy. Therefore, a low-cost, effective, and dependable photocatalyst could be a viable solution to environmental and energy crises. However, performing energy-conversion reactions by preparing photocatalysts with suitable photoabsorption and effective charge separation is challenging. Herein, a novel CoMn 2 O 4 -ZnIn 2 S 4 (CMO-ZIS) hollow microcube composite catalyst with a p-n heterojunction is constructed, in which ZnIn 2 S 4 nanosheets are grown in situ on the surfaces of CoMn 2 O 4 hollow microcubes. Surprisingly, 10% CoMn 2 O 4 -ZnIn 2 S 4 (CMO-ZIS-10) exhibits a PHE rate of up to 11.04 mmol h −1 g −1 , which is approximately 3.6 times higher than that of pure ZnIn 2 S 4 . In addition, to maintain the excellent visible light absorption efficiency of ZnIn 2 S 4 nanosheets, the close-contact heterogeneous interface of CMO-ZIS enables easy separation and transfer of the carriers. Furthermore, the hollow structure increases the absorption efficiency of sunlight and provides more active sites, thus increasing the reactivity of photocatalyst. In this paper, we report a workable approach for building heterojunction photocatalysts powered by water splitting.
研究领域:
材料科学
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能源科学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
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IF 8.1
Juan Jia,Xiaomin Guo,Ying Tang,Wenjing Zeng,Hui Zeng,Zebao Rui
Construction of efficient and economically controllable catalysts for photocatalytic hydrogen production to relieve environmental and energy pressures remains an ongoing challenge. Herein, indium zinc sulfide supported carbon dots (CDs) and Ni 3 P hybrid (CDs/Ni 3 P/ZnIn 2 S 4 ) is designed as a robust catalyst for photothermal catalytic hydrogen production by water splitting. The co-introduction of CDs/Ni 3 P on ZnIn 2 S 4 as electron acceptors effectively enhances the photon harvest capacity and separation efficiency of photogenerated charges, and ultimately leads to excellent photothermal catalytic hydrogen production performance. The average hydrogen production rate of CDs/Ni 3 P/ZnIn 2 S 4 reaches 1880.78 μmol g −1 h −1 under 50 °C and full spectrum irradiation of 200 mW cm −2 , which is ∼8.8 times higher than the pristine ZnIn 2 S 4 and ranges among those over noble metal catalysts. Such a work provides a reliable route for the design of non-precious photothermal catalysts for photocatalytic hydrogen production.
研究领域:
材料科学
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能源科学
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产品关联
DOI
高影响因子
RENEWABLE ENERGY
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2017
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IF 4.357
Rongshu Zhu,Fei Tian,Sainan Che,Gang Cao,Feng Ouyang
A series of RGO/La-ZnIn 2 S 4 photocatalysts were successfully synthesized using the hydrothermal method with different amount of RGO (0 wt%, 0.1 wt%, 0.5 wt%, 1.0 wt%, 2.0 wt%, 5.0 wt%) and La (0 wt%, 0.1 wt%, 0.5 wt%, 1.0 wt%, 2.0 wt%, 5.0 wt%) and characterized by various analysis techniques, such as XRD , Raman, SEM, UV–Vis, TEM, BET and PL. The photocatalytic H 2 evolution activities have also been evaluated under visible-light irradiation. The H 2 production activity of RGO/La-ZnIn 2 S 4 was influenced by both La and RGO significantly. The activity reached the best when the amounts of La and RGO were both 1.0 wt%. The hydrogen production rate of 1.0Pt/1.0RGO/1.0La-ZnIn 2 S 4 was 2255 μmol g −1 h −1 and the apparent quantum yield and the energy conversion efficiency were 29.45% and 18.79% at 420 nm respectively. The activity was related to the BET surface area, the pore microstructure and the synergistic effect of RGO and La. On the basis of the characterization of the catalysts, the synergistic effect of RGO and La on the photocatalytic activity of RGO/La-ZnIn 2 S 4 was discussed in detail.
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
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
·
IF 8.1
Ligang Ma,Le Xu,Yihuan Ding,Chao Lin,Yuqing Yang,Xiaoqian Ai
Reasonable design and preparation of effective interface engineering to accelerate charge transfer is the key to achieve the improvement of heterojunction photocatalysts. In this study, a Ti 3 C 2 -MoS 2 -ZnIn 2 S 4 (TMZ) heterojunction was designed and successfully synthesized by sequentially growing MoS 2 and ZnIn 2 S 4 layered structures on highly conductive Ti 3 C 2 using a two-step hydrothermal method. This configuration effectively separated photogenerated carrier, thereby improving the efficiency of photocatalytic hydrogen production. The effects of the amount of Ti 3 C 2 -MoS 2 on the microstructure, morphology, optical properties and photocatalytic H 2 production of TMZ heterojunctions were investigated. Results demonstrated that Ti 3 C 2 , MoS 2 , and ZnIn 2 S 4 intricately interpenetrated to form a tightly bound TMZ heterojunction with a well-defined heterojunctions interface. This interface is beneficial for the separation of photogenerated carriers, thereby boosting the photocatalytic performance. The dynamic process of carrier separation was investigated in detail using photocurrent measurements, EIS Nyquist plots, photoluminescence, and fluorescence lifetime analysis. Additionally, compared to pristine ZnIn 2 S 4 , the absorption edge of TMZ sample exhibited a redshift, indicating an expanded absorption range in the visible spectrum. Finally, the mechanism by which TMZ enhances the efficiency of photocatalytic H 2 production is thoroughly analyzed.
研究领域:
材料科学
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能源科学
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光催化
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产品关联
DOI
高影响因子
Nature Communications
·
2022
·Vol. 13
·期 1
·1-10
·
IF 17.694
Shi Xiaowei,Dai Chao,Wang Xin,Hu Jiayue,Zhang Junying,Zheng Lingxia,Mao Liang,Zheng Huajun,Zhu Mingshan
Single-site cocatalysts engineered on supports offer a cost-efficient pathway to utilize precious metals, yet improving the performance further with minimal catalyst loading is still highly desirable. Here we have conducted a photochemical reaction to stabilize ultralow Pt co-catalysts (0.26 wt%) onto the basal plane of hexagonal ZnIn 2 S 4 nanosheets (Pt SS -ZIS) to form a Pt-S 3 protrusion tetrahedron coordination structure. Compared with the traditional defect-trapped Pt single-site counterparts, the protruding Pt single-sites on h -ZIS photocatalyst enhance the H 2 evolution yield rate by a factor of 2.2, which could reach 17.5 mmol g −1 h −1 under visible light irradiation. Importantly, through simple drop-casting, a thin Pt SS -ZIS film is prepared, and large amount of observable H 2 bubbles are generated, providing great potential for practical solar-light-driven H 2 production. The protruding single Pt atoms in Pt SS -ZIS could inhibit the recombination of electron-hole pairs and cause a tip effect to optimize the adsorption/desorption behavior of H through effective proton mass transfer, which synergistically promote reaction thermodynamics and kinetics.
研究领域:
材料科学
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能源化学
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环境科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）