ACS Applied Energy Materials
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2020
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IF 4.473
Huijuan Han,Yang Yang,Jiafang Liu,Xiuzhen Zheng,Xulin Wang,Sugang Meng,Sujuan Zhang,Xianliang Fu,Shifu Chen
Photocatalytic nitrogen fixation is considered as a very promising technology to solve the high-energy consumption problem in industrial ammonia synthesis. Because of the mildness of reaction conditions, its development is still limited by the low reaction efficiency and unknown reaction mechanism. Inspired by the mechanism of biological nitrogen fixation in nature, Zn3In2S6 with different sulfur sources is prepared to study the effects of cation defects on the adsorption, activation, and reaction in photocatalytic nitrogen fixation. Because of the electron-rich property of zinc vacancies in Zn3In2S6 nanosheets, it can effectively activate the N≡N triple bond, thereby increasing the rate of kinetic reduction. With the activation of N2 molecules on zinc vacancies, the existing protons obtained from methanol (solvent) will greatly accelerate the electron transfer between interfaces during the nitrogen reduction reaction. Notably, Zn3In2S6 with rich Zn vacancies exhibits higher activity (355.2 mg L–1 gcat–1, 15 times) than Zn3In2S6 with poor vacancies in nitrogen fixation. This work describes the contribution of zinc vacancies to the fixation and activation of nitrogen molecules, which is very important to establish a highly effective system of photocatalytic nitrogen fixation.
研究领域:
材料科学
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催化化学
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环境科学
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DOI
高影响因子
CATALYSIS COMMUNICATIONS
·
2019
·
IF 3.674
Li-Li Chu
2D-3D noble-metal-free Ni 2 P/Zn 3 In 2 S 6 hierarchical composites were fabricated firstly by the hydrothermal method and characterized by the relative techniques. The average H 2 evolution rate over the optimized Ni 2 P/Zn 3 In 2 S 6 under simulated sunlight can reach up to 6.4 mmol g −1 h −1 , which is about 3.4 and 2.6 times higher than that of pure Zn 3 In 2 S 6 and Pt/Zn 3 In 2 S 6 hybrid. The excellent photocatalytic performance can be attributed to the interaction between the well-dispersed ultrafine Ni 2 P cocatalyst and the 2D-3D Zn 3 In 2 S 6 hierarchical structure, which contributes to the separation and transportation of the photoinduced charge carriers.
研究领域:
材料科学
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能源科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Huijia Jin,Qian Liu,Matin Naghizadeh,Li Guan,Sheying Dong,Tinglin Huang
The degradation of antibiotics in wastewater poses a critical environmental challenge, necessitating the development of advanced photocatalysts capable of efficiently generating active species. Hence, a novel Zn 3 In 2 S 6 /Bi 3 O 4 Br (ZB) heterojunction enriched with oxygen vacancies (OVs) was designed. The optimized ZB-1 (mass percentage of Bi 3 O 4 Br to Zn 3 In 2 S 6 = 1 %) exhibited the highest nitrofurazone (NFZ) degradation rate constant ( k ) of 0.24 min −1 after 20 min illumination, which was 6.6 and 26.3 folds of the original Zn 3 In 2 S 6 and Bi 3 O 4 Br, respectively. ZB-1 also demonstrated excellent cycling durability and resistance to pH fluctuation. The OVs potentiated O 2 adsorption and drew the photogenerated electrons for oxygen (O 2 ) activation, thereby enhancing carrier mobility. Furthermore, the constructed heterojunction facilitated light absorption and carrier migration for O 2 activation. The OVs and heterojunctions collaboratively meliorated carrier utilization and active species generation. As a result, abundant superoxide radicals ( O 2 − ) were generated and significantly contributed to eliminating NFZ. Meanwhile, the photocatalytic mechanism was clarified by theoretical calculation. The degradation pathway of NFZ and the biotoxicity of its intermediates were systematically conjectured. This research provides a new perspective for designing efficient, durable, and reproducible photocatalysts, which can help address environmental issues related to antibiotic contamination.
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
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Wenqian Luan,Yuye Yan,Jianxiang Wang,Yingxia Zong,Ruiyang Zhao,Jishu Han,Lei Wang
Conversion of water into renewable hydrogen energy using solar energy is one of the ideal methods to address the current environmental pollution and increasing energy demand. Thus developing the photocatalyst with high efficiency, stability, and a low electron-hole recombination rate becomes very important. In this paper, Zn 3 In 2 S 6 microspheres were synthesized by hydrothermal method, and then In-doped CdSe nanoparticles were loaded on the surface of Zn 3 In 2 S 6 microspheres to form Cd 0.9 In 0.1 Se/Zn 3 In 2 S 6 type II heterojunction. Under simulated sunlight irradiation, the photocatalytic hydrogen production of Cd 0.9 In 0.1 Se/Zn 3 In 2 S 6 reached 11.41 mmol h −1 g −1 , which was 4.61 times and 1.97 times that of Cd 0.9 In 0.1 Se and Zn 3 In 2 S 6 , respectively. The experimental results showed that the formation of type II heterojunction could improve the photocatalytic hydrogen production efficiency by shortening the charge transport distance and inhibiting the recombination of electron-hole pairs. This work will provide new ideas and insights for the development of photocatalytic hydrogen production technology.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
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IF 6.7
Yubao Li,Hanke Li,Shuang Li,Ming Li,Ping He,Yao Xiao,Jiufu Chen,Yafen Zhou,Tongyan Ren
Photocatalytic water splitting for hydrogen evolution is viewed as a promising strategy to address the energy and environmental issues. In this study, a series of NiO/Zn 3 In 2 S 6 (NiO/ZIS 6 ) p-n heterojunction photocatalysts have been prepared by the facile ultrasonic assisted deposition method. The as-obtained samples were systematically characterized employing various testing techniques. The photocatalytic performance of the p-n photocatalysts were evaluated by photocatalytic hydrogen production and the effect of different mass ratios of NiO to ZIS 6 on photocatalytic hydrogen evolution performance was also explored. The results indicated that the 25% NiO/ZIS 6 sample demonstrates optimal photocatalytic hydrogen evolution activity with a hydrogen evoluton rate of 21.79 mmol g −1 h −1 , which is 7.65 times higher than that of ZIS 6 . The mechanism exploration proves that the formation of NiO/ZIS 6 p-n heterojunction effectively promotes the separation and migration of photoinduced electrons and holes. Meanwhile, the recombination of charge carriers was restrained observably. This work may shed light on the design and preparation of novel p-n heterojunction photocatalysts with efficient photocatalytic hydrogen evolution performance and high stability.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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2022
·Vol. 23
·期 21
·13221
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IF 6.208
Haohao Huo,Yuzhen Li,Shaojie Wang,Siyang Tan,Xin Li,Siyuan Yi,Lizhen Gao
Herein, Zn3In2S6photocatalyst with (110) exposed facet was prepared by low temperature solvothermal method. On this basis, a highly efficient binary Zn3In2S6/g-C3N4was obtained by low temperature solvothermal method and applied to the degradation of tetracycline (TC). The samples of the preparation were characterized by X-ray diffraction, scanning electron microscope, transmission electron microscope, UV–vis diffuse reflection spectroscopy, and photoluminescence spectroscopy. Furthermore, the degradation performance of photocatalysts on TC was investigated under different experimental conditions. Finally, the mechanism of Zn3In2S6/g-C3N4composite material degrading TC is discussed. The results show that Zn3In2S6and Zn3In2S6/g-C3N4photocatalysts with excellent performance could be successfully prepared at lower temperature. The Zn3In2S6/g-C3N4heterojunction photocatalyst could significantly improve the photocatalytic activity compared with g-C3N4. After 150 min of illumination, the efficiency of 80%Zn3In2S6/g-C3N4to degrade TC was 1.35 times that of g-C3N4. The improvement of photocatalytic activity was due to the formation of Zn3In2S6/g-C3N4heterojunction, which promoted the transfer of photogenerated electron–holes. The cycle experiment test confirmed that Zn3In2S6/g-C3N4composite material had excellent stability. The free radical capture experiment showed that ·O2−was the primary active material. This study provides a new strategy for the preparation of photocatalysts with excellent performance at low temperature.Keywords:Zn3In2S6/g-C3N4;tetracycline;low temperature;photocatalytic
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
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Shuyu Chen,Zhengkai Wu,Xueying Cheng,Lu Chen,Yunning Chen,Yingna Guo,Changhua Wang,Qingkun Shang
In this work, we used a simple hydrothermal method to in-situ grow Zn 3 In 2 S 6 on MIL-100(Fe) octahedra, and obtained a MIL-100(Fe)@Zn 3 In 2 S 6 Z-scheme heterojunction photocatalyst. We systematically studied its performance in degrading phenol and p-nitrophenol (PNP) under visible light. MIL-ZIS 6 -2 can remove 89.1 % of phenol within 120 min and nearly 100 % of PNP within 60 min. Its photocatalytic activity to the degradation of phenol is 30.7 times and 1.7 times higher than that of MIL-100(Fe) and Zn 3 In 2 S 6 , respectively. And the photocatalytic activity to degrade PNP is 18.2 times and 1.4 times higher than MIL-100(Fe) and Zn 3 In 2 S 6 . Further research was conducted on its band structure and photocatalytic response mechanism through photoelectric performance, ultraviolet photo-electron spectroscopy, and electron spin resonance spectrometer testing. The results showed that the formation of Z-scheme heterojunction not only increased the specific surface area of the composite photocatalyst, enabling it to provide more reaction sites, but also effectively suppressed the recombination of photogenerated holes and electrons, improving the redox ability of the photocatalyst. This work provides a new perspective for constructing efficient Zn 3 In 2 S 6 -based composite photocatalysts and addressing environmental issues.
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
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
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IF 9.9
Lifang Yang,Jiangju Si,Liang Liang,Yunfei Wang,Li Zhu,Zizhong Zhang
Photocatalytic water splitting has been identified as a promising solution to tackle the current environmental and energy crisis in the world. However, the challenge of this green technology is the inefficient separation and utilization of photogenerated electron-hole pairs in photocatalysts. To overcome this challenge in one system, a ternary ZnO/Zn 3 In 2 S 6 /Pt material was prepared as a photocatalyst using a stepwise hydrothermal process and in-situ photoreduction deposition. The integrated S-scheme/Schottky heterojunction in the constructed ZnO/Zn 3 In 2 S 6 /Pt photocatalyst enabled it to exhibit efficient photoexcited charge separation/transfer. The evolved H 2 reached up to 3.5 mmol g -1 h - 1 . Meanwhile, the ternary composite possessed a high cyclic stability against photo-corrosion under irradiation. Practically, the ZnO/Zn 3 In 2 S 6 /Pt photocatalyst also showed great potential for H 2 evolution while simultaneously degrading organic contaminants like bisphenol A. It is hoped in this work that the incorporation of Schottky junctions and S-scheme heterostructures in the construction of photocatalysts would lead to accelerated electron transfer and high photoinduced electron-hole pair separation, respectively, to synergistically enhance the performance of photocatalysts.
研究领域:
材料科学
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环境科学
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能源科学
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产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF CATALYSIS
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2020
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IF 6.146
Sujuan Zhang,Shixiang Duan,Gaoli Chen,Sugang Meng,Xiuzhen Zheng,You Fan,Xianliang Fu,Shifu Chen
Enhancing the separation efficiency of photogenerated carriers is propitious for the promotion of photocatalytic hydrogen production from formic acid decomposition. Herein, MoS 2 /Zn 3 In 2 S 6 (MoS 2 /ZIS6) composite photocatalysts containing varying mass percentages of MoS 2 were obtained by a straightforward synthetic method. The results confirmed that MoS 2 , as a cocatalyst, markedly promoted the photogenerated charge separation efficiency and visible light-driven hydrogen production activity of ZIS6 (λ > 400 nm). Specifically, the as-prepared 0.5% MoS 2 /ZIS6 photocatalyst exhibited the highest photocatalytic hydrogen production rate (74.25 µmol·h −1 ), which was approximately 4.3 times higher than that of ZIS6 (17.47 µmol·h−1). The excellent performance of the 0.5% MoS 2 /ZIS6 photocatalyst may be due to the fact that MoS 2 has a low Fermi energy level and can thus enrich photogenerated electrons from ZIS6, and furthermore reduce H + derived from formic acid, to form hydrogen. The structure and morphology of the MoS 2 /ZIS6 photocatalysts and the reactive species were determined by X-ray diffraction, transmission electron microscopy, and field emission scanning electron microscopy, among others; a plausible mechanistic rationale is discussed based on the results.
研究领域:
材料科学
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催化化学
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能源科学
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产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2022
·
IF 6.14
Shouwu Xu,Kaili Zhang,Lili Du,Daming Gong,Guiwu Lu,Ping Qiu
Photocathodic protection has evoked great attention in stainless steel protection; however, it has not been fully studied on carbon steel. This study has prepared a series of TiO2/Zn3In2S6 nanocomposite films by combining anodic oxidation with hydrothermal methods, in which composition and morphology together with optical properties have been characterized. This heterojunction TiO2/Zn3In2S6 has allowed access to visible-light absorbance. Photoelectrochemical tests suggest that this film can supply effective photocathodic protection to carbon steel. The maximum photogenerated potential drop achieved on TiO2/Zn3In2S6-30 coupled to carbon steel is about −0.49 V even after 80 h of illumination, and the corresponding photocurrent is 1.91 mA·cm–2, which is about 5 times higher than that of pure TiO2. This is benefited from the effective photogenerated charge separation by the built-in electric field in the heterojunction. The detailed mechanism has been discussed in the paper.
研究领域:
材料科学
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电化学
·
腐蚀与防护
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
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IF 5.532
Hongfei Yin,Chunyu Yuan,Huijun Lv,Kaiyue Zhang,Xue Chen,Yongzheng Zhang
Environmental crisis aroused from the Cr(VI)-containing wastewater has received much attention, due to the cancer-causing and mutagenic feature of Cr(VI). Photocatalytic technology has been considered to be a favorable contestant for coping with Cr(VI)-containing effluent. In this study, Ti 3 C 2 MXene/Zn 3 In 2 S 6 Schottky junctions with different content of Ti 3 C 2 MXene were prepared for Cr(VI) photoreduction. The inherent physical and photoelectrochemical characters of the obtained Ti 3 C 2 MXene/Zn 3 In 2 S 6 Schottky junctions were fully characterized. Compared with the pure Zn 3 In 2 S 6 , all the nanocomposites showed enhanced photocatalytic performance, the apparent kinetic constant of the optimized sample was 3.17 times the height of the Zn 3 In 2 S 6 . The improved photoreduction performance largely originated from the effectual separation and transfer of the photoexcited charge carriers. In the meantime, the deleterious role of superoxide radicals for Cr(VI) photoreduction was confirmed. It is anticipated this research can deliver a new-fangled vision for constructing efficient photocatalyst for Cr(VI) photoreduction.
研究领域:
环境科学
·
材料科学
·
光化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2017
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IF 9.446
Jinghu Zhang,Sugang Meng,Xiangju Ye,Cancan Ling,Sujuan Zhang,Xianliang Fu,Shifu Chen
Selective oxidation of aromatic alcohols to corresponding carbonyl compounds under mild conditions has a promising prospect in industry. In the paper, we successfully prepared a new mode of photothermocatalyst, Zn 3 In 2 S 6 @ZnO composite, which shows dramatically enhanced activity for selective oxidation of benzyl alcohol to benzaldehyde compared with single Zn 3 In 2 S 6 and ZnO under visible light illumination. The enhancement is due to a synergistic effect of low-temperature thermocatalysis on ZnO and photocatalysis on Zn 3 In 2 S 6 . ZnO could weaken bonds of the C H α and the O H. Then the reactive species ( O 2 − and h + ) generated on Zn 3 In 2 S 6 could be easy for selective oxidation of benzyl alcohol to produce benzaldehyde. The photoelectrochemical and photoluminescence (PL) results and a series of control experiments (e.g. reaction temperature and radical scavenger) prove this synergistic effect and proposed mechanism. Moreover, the stable performance and high activity of Zn 3 In 2 S 6 @ZnO for other aromatic alcohols indicate its applicable potential. This study provides a promising way to combine photocatalysis and thermocatalysis for the design of novel and efficient visible-light-driven catalyst for selective oxidation of aromatic alcohols or other organics under mild reaction conditions.
研究领域:
化学
·
材料科学
·
催化反应
✓ 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）