JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
·
IF 9.9
Shengyu Zhang,Gongxin Zhang,Shuangzhi Wu,Zhongjie Guan,Qiuye Li,Jianjun Yang
Integration of photothermal materials and photocatalysts can effectively improve photocatalytic hydrogen production. However, the synergistic mechanism of photothermal effect and heterojunction still need to be deeply investigated. Herein, Co 3 O 4 @ZnIn 2 S 4 (ZIS) core–shell heterojunction was constructed as a photothermal/ photocatalytic integrated system for photocatalytic hydrogen production. The photothermal effect induced by Co 3 O 4 boosts the surface reaction kinetic of hydrogen evolution with an apparent activation energy decrease from 42.0 kJ⋅mol −1 to 33.5 kJ⋅mol −1 . The photothermal effect also increases the charge concentrations of Co 3 O 4 @ZIS, which ameliorates the conductivity of Co 3 O 4 @ZIS and thus benefits to charge transfer. In addition, a p-n junction forms between Co 3 O 4 and ZIS and provides a built-in electric field to enhance charge separate and prolong charge life time. Benefiting from the synergy of photothermal effect and heterojunction, the photocatalytic performance of Co 3 O 4 @ZIS is significantly improved with a highest hydrogen evolution rate of 4515 μmol⋅g −1 ⋅h −1 , which is about 3.5 times higher than that of pure ZIS. This work offers a full perspective to understand the photothermal/photocatalytic integrated conception for solar hydrogen production.
研究领域:
材料科学
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光催化
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能量转换
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DOI
PubMed
高影响因子
Chemical Science
·
2024
·
IF 7.6
Huitao Fan,Minglin Hu,Yabing Duan,Luyang Zuo,Ronggui Yu,Zhuwei Li,Qi Liu,Bo Li,Liya Wang
The conversion of carbon dioxide (CO2) into carbon-neutral fuels using solar energy is crucial for achieving energy sustainability. However, the high carrier charge recombination and low CO2 adsorption capacity of the photocatalysts present significant challenges. In this paper, a TAPB-COF@ZnIn2S4-30 (TAPB-COFZ-30) heterojunction photocatalyst was constructed by in situ growth of ZnIn2S4 (ZIS) on a hollow covalent organic framework (HCOF) with a hollow core–shell structure for CO2 to CO conversion. Both experimental studies and theoretical calculations indicate that the construction of heterojunctions improves the efficiency of carrier separation and utilisation in photocatalysis. The yield of photoreduction of CO2 to CO by the TAPB-COFZ-30 heterojunction photocatalyst reached 2895.94 μmol g−1 with high selectivity (95.75%). This study provides a feasible strategy for constructing highly active core–shell composite photocatalysts to optimize CO2 reduction.
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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DOI
PubMed
高影响因子
Journal of Energy Chemistry
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2020
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IF 7.216
Jingwen Pan,Gongxin Zhang,Zhongjie Guan,Qianyu Zhao,Guoqiang Li,Jianjun Yang,Qiuye Li,Zhigang Zou
Structure manipulation of photocatalysts at an atomic scale is a promising way to improve its photocatalytic performance. Herein, we realize the anchoring of single Ni atoms on the ZnIn 2 S 4 nanosheets with rich sulfur vacancies. Experimental results demonstrate that single Ni atoms induce the formation of Ni-O-M (Zn/In) atomic interface, which can efficiently promote the carriers separation and prolong the carrier life time. In addition, in situ electron spin resonance spectroscopy (ESR) confirms that the single Ni atoms act as an electron trapping center for protons reduction. As a result, the single Ni atoms decorated ZnIn 2 S 4 nanosheets with rich sulfur vacancies (Ni/ZnIn 2 S 4 -RV s ) shows a hydrogen evolution rate up to 89.4 μmol h −1 , almost 5.7 and 2.3 times higher compared to that of ZnIn 2 S 4 nanosheets with poor sulfur vacancies and rich sulfur vacancies (denoted as ZnIn 2 S 4 -PV s and ZnIn 2 S 4 -RV s ). This work opens up a new perspective manipulating the single-atom cocatalyst and sulfur vacancy on sulfide supports for improving photocatalytic hydrogen evolution.
研究领域:
材料科学
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光催化
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能源化学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2019
·Vol. 30
·期 21
·19137-19146
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IF 2.195
Xiang Ye,Zou Hao,Xu Yifeng,Deng Yuehong,Zhu Jie,Wu Wan,Zhou Yi
In this article, the novel direct Z-scheme ZnIn 2 S 4 @BiOBr-(110) heterojunction structure was firstly synthesized via simple two-step hydrothermal method. The results of XRD and HRTEM indicated that as-prepared BiOBr mainly exposed high energy (110) facet. Simultaneously, the photoelectrochemical measurement was performed to further investigate the photo-induced carrier separation efficiency. The results indicated that Z-scheme heterojunction structure formed by the loading of ZnIn 2 S 4 nanosheets not only promoted the separation of photogenerated carriers and inhibited fast recombination rate of photogenerated electron–hole pairs of pure BiOBr, but also endowed the composite with better redox activity. The degradation efficiency of RhB by BiOBr loaded with 10 mol% ZnIn 2 S 4 has achieved 98% within 18 min under the irradiation of Xe lamp, which demonstrated that the unique direct Z-scheme ZnIn 2 S 4 @BiOBr-(110) composite photocatalytic materials has the potential application in environmental pollution control and energy conversion.
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
LANGMUIR
·
2025
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IF 3.9
Yuxuan Liu,Qianzhi Chen,Xiaoying Feng,JiYan Li,Hanxue Sun,Weidong Liang
With the rapid advancement of industrialization, wastewater pollution has become an increasingly severe environmental issue. The integration of photocatalysis with solar interfacial evaporation technology, which leverages the abundant and clean energy of solar power, has drawn growing attention as effective solutions to this problem. In this study, MoS2 nanosheets with low-dimensional and controllable morphology were successfully grown on layered ZnIn2S4 using a simple template method, resulting in a novel nanoflower heterojunction photocatalyst. This photocatalyst was then combined with sodium alginate, and aerogels were fabricated through directional freezing technology. The ZnIn2S4/MoS2 photocatalytic aerogel demonstrated excellent photocatalytic performance under visible light, efficiently degrading various pollutants such as rhodamine B(RhB)(30 min, 99%), methyl orange(MO)(30 min, 99%), tetracycline(TC)(1h, 88%), and other antibiotics and dyes. Notably, the degradation efficiency for tetracycline remained at 88% even after five cycles of use, highlighting the aerogel’s strong reusability and stability across different pollutants. Additionally, the current aerogel composite exhibits an evaporation rate of up to 1.984 kg m–2 h–1 and a photothermal conversion efficiency of 95.5%. These results demonstrate that the ZnIn2S4/MoS2 photocatalytic aerogel is a promising candidate for sustainable water treatment, with broad applicability and stable photocatalytic degradation efficiency and interfacial evaporation efficiency under different polluted environments.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
Nano Materials Science
·
2024
·
IF 12.6
Mirza Abdullah Rehan,Honghua Liang,Guiqiang Li
The construction of a well-defined and efficient Z-scheme heterostructure with enhanced photogenerated charge carriers and their rapid transfer is vital for realizing efficient photocatalytic hydrogen production, to achieve carbon neutrality. Herein, we study the H 2 evolution reaction by rationally constructing a hybrid Au-anchored UiO-66-NH 2 with localized surface plasmon resonance (LSPR) properties, embedded with ZnIn 2 S 4 /MoS 2 nanosheets. Interestingly, the synergistic effect of excellent heterojunction, tunes additional catalytic active sites, provides effective separation of photogenerated charges at the junction interface and establishes a dedicated microenvironment for the boosted electron transfer. Notably, the optimized hybrid photocatalyst (Au 6 @U6N) 15 /ZIS/MS 5 exhibits highly efficient H 2 generation of 58.2 mmol g −1 h −1 , which is almost 16 and 1.5 folds of the pristine ZIS and MS/U6N/ZIS, correspondingly. It has an apparent quantum efficiency of 19.6% at a wavelength of 420 nm, surpassing several reported MOF-based ZnIn 2 S 4 photocatalytic H 2 evolution activities. Significantly, this research provides insights into the design of interface-engineered plasmonic MOF with layered encapsulated heterostructures that elucidate the role of plasmonic LSPR effect and efficiently regulate the charge transfer with enhanced microchannels, hence boosting the visible-light-driven photocatalytic activity for realizing efficient green energy conversion.
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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DOI
高影响因子
APPLIED SURFACE SCIENCE
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2022
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IF 7.392
Linbo Luo,Sheying Dong,Hao Chen,Huijia Jin,Tinglin Huang
The high recombination rate of photogenerated carriers limited the wide application of ternary metal sulfides with appropriate energy band structure and excellent light absorption properties. In this article, the microflower-like MgIn 2 S 4 /ZnIn 2 S 4 heterojunction was constructed to overcome the above faults. Various characterizations revealed that the loading of MgIn 2 S 4 provided more reactive sites for the photocatalytic reaction, and induced the generation of more photogenerated charge. Meanwhile, the heterostructure forming between MgIn 2 S 4 and ZnIn 2 S 4 significantly reduced the recombination rate of photogenerated carriers. For the 30% MgIn 2 S 4 /ZnIn 2 S 4 (MZ-30) composite, the removal efficiency of tetracycline hydrochloride (TCH) reached 96.21% under the optimal experimental conditions. Surprisingly, it still maintained high removal efficiencies both acidic and alkaline conditions. MgIn 2 S 4 /ZnIn 2 S 4 composite had the advantages like short removal time, wide pH application range, and could efficiently degrade a variety of antibiotics at the same time. Mass spectrometry analysis suggested that TCH molecules eventually turned into carbon dioxide and water by the ring-opening and functional group cracking reactions. Finally, the possible mechanism of photocatalytic degradation of TCH was proposed by combining the band position analysis and active species trapping test.
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
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Hong Yao,Gang Jin,Guozhe Sui,Jinlong Li,Dongxuan Guo,Shuang Liang,Ze Luo,Rongping Xu,Chao Wang,Jing Tang
Z-scheme photocatalytic heterojunction is considered as an effective strategy to promote the photogenerated electron-hole separation for improving the efficiency of photocatalytic hydrogen precipitation from splitting water significantly. Herein, a novel Z-scheme 2D-ZnIn 2 S 4 /NiCoP heterojunction is successfully prepared by coupling NiCoP derived from ZIF-67 through phosphating treatment with 2D-ZnIn 2 S 4 lamellae via a facile hydrothermal method . The Z-scheme heterostructure of ZnIn 2 S 4 /NiCoP could suppress the recombination-rate of photogenerated electron-hole pairs and enhance the visible-light-driven photocatalytic hydrogen production . As a result, the hydrogen production rate of 2D-ZnIn 2 S 4 /NiCoP (10 wt% ZnIn 2 S 4 ) increase to 5098.12 μmol g −1 h −1 significantly with an apparent quantum yield (AQY) of 5.24% at 420 nm, which is 3.07 times than that of bare ZnIn 2 S 4 . The enhancement of photocatalytic performance is attributed to the following issues: 2D-ZnIn 2 S 4 could avoid the agglomeration of tiny ZnIn 2 S 4 , exposing more active sites and shortening the transmission distance of photogenerated carries; the formation of Z-scheme heterostructure could promote the separation of photogenerated electron-hole pairs; the unique hollow structure of NiCoP derived from ZIF-67 could inhibit the recombination of the photogenerated electron-hole. Overall, this work could provide a new idea for designing and preparing of visible-light-driven photocatalysts with high efficiency for photocatalytic hydrogen production.
研究领域:
材料科学
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能源化学
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光催化
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 47
·2208962
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IF 19.924
Chao Cui,Xiaolei Zhao,Xiaowen Su,Ning Xi,Xiaoning Wang,Xiaowen Yu,Xiao Li Zhang,Hong Liu,Yuanhua Sang
The construction of a Z-scheme photocatalytic system is significant in realizing efficient water splitting for hydrogen (H 2 ) evolution. Herein, a novel donor–acceptor covalent organic polymer (COP) is introduced to construct a COP-ZnIn 2 S 4 (ZIS) heterostructure via in situ condensation reaction. The COP-ZIS heterostructure with platinum (Pt) as cocatalyst delivers a high hydrogen evolution rate of 5.04 mmol g −1 h −1 , which is 16 and 3 times higher than ZIS and Pt/ZIS, respectively. The built-in field between the highest occupied molecular orbital of COP and the valence band (VB) of ZIS forms a Z-scheme heterostructure, realizing efficient charge separation. Based on density functional theory calculations, the porphyrin molecule in COP act as electron donor that provides compensating electrons to ZIS. The cocatalyst boosts the utilization of electrons in ZIS. The rate-limiting steps for H 2 evolution with ZIS are overcome by improving charge separation with the Z-scheme heterostructure and speeding up the reaction with cocatalyst. Therefore, the COP-ZIS heterostructure with Pt exhibits optimized H 2 evolution. This study will inspire to construct novel organic and inorganic Z-scheme photocatalysts for efficient green energy production.
研究领域:
材料科学
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能源化学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
·
IF 6.371
Juan Wang,Yuxing Shi,Haoran Sun,Weilong Shi,Feng Guo
Photocatalytic hydrogen production from water splitting is a technology that takes advantage of solar energy to produce clean and green hydrogen energy with wide application prospects. Herein, an S-scheme heterojunction photocatalyst with a nanosheets-on-nanosheets structure was successfully prepared by using a simple low-temperature water bath method and ZnIn 2 S 4 nanosheets are generated in situ on Bi 4 Ti 3 O 12 nanosheets, realizing efficient photocatalytic produce hydrogen under visible light irradiation. The optimal proportion of Bi 4 Ti 3 O 12 /ZnIn 2 S 4 (BTO/ZIS) has extraordinary hydrogen production efficiency of 19.8 mmol h −1 g −1 , 2.1 times that of pristine ZIS (9.2 mmol h −1 g −1 ). The main reasons for the improved activity of BTO/ZIS heterojunction photocatalysts are investigated by a series of photochemical characterization data analyses. Finally, its high photocatalytic performance can be attributed to more reactive active sites provided by the sheet-sheet heterostructure and the formation of S-scheme heterojunction between BTO and ZIS, which promotes the transfer of photogenerated electron-hole pairs.
研究领域:
材料科学
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能源科学
·
光催化技术
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产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2022
·
IF 24.319
Dongxue Zhou,Xiangdong Xue,Xing Wang,Qingjie Luan,Ang Li,Liguo Zhang,Baozhen Li,Wenjun Dong,Ge Wang,Changmin Hou
Element doping is an excellent strategy to promote charge separation and reaction kinetics of photocatalyst, which plays significant role in accelerating the sustainable energy development process. Herein, Ni, In co-doped ZnIn 2 S 4 photocatalyst was prepared by a microwave-assisted solvothermal method. The rapid crystallization of ZnIn 2 S 4 resulted in partial In atoms substituted Zn atom during the formation of [ZnS] 4 layer. In doping in tetrahedral Zn sites increases the electron delocalization around In sites, hence reduces the electronic potential wells along Z axis. Ni doping in tetrahedral Zn sites decreases the negative charge on the S sits, which balances the H adsorption/desorption, further boosting the photocatalytic activity. As a result, Ni, In co-doped ZnIn 2 S 4 possess an optimal photocatalytic H 2 evolution property of 21.94 μmol·h −1 , which is nearly 1.8 and 6.1 times of In-ZnIn 2 S 4 (11.78 μmol·h −1 ) and ZnIn 2 S 4 (3.6 μmol·h −1 ).
研究领域:
材料科学
·
能源化学
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产品关联
DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Ligang Ma,Yuqing Yang,Tianyu Zhu,Yihuan Ding,Chao Lin,Le Xu,Xiaoqian Ai
In this paper, hexagonal ZnIn 2 S 4 nanoflowers were grown in situ on tetragonal WO 3 ·H 2 O nanosheets, yielding a compact ZnIn 2 S 4 @WO 3 ·H 2 O (ZIS@WO) core-shell heterojunction. The formation of the ZIS@WO heterojunction was optimized by meticulously adjusting the quantity of WO 3 ·H 2 O nanosheets incorporated. The crystal structure and microstructure of ZIS@WO were comprehensively examined using XRD, TEM and EDS analyses. The photocatalytic properties of ZIS@WO heterojunctions were evaluated through the degradation of organic pollutants under visible light irradiation. The results demonstrated a marked enhancement in photocatalytic efficiency for the ZIS@WO heterojunction. Further investigation into the separation and transport of photogenerated carriers were performed using PL spectroscopy and photoelectrochemical measurement. Compared to the individual components of ZnIn 2 S 4 nanoflowers and WO 3 ·H 2 O nanosheets, the ZIS@WO heterojunction creates an internal electric field at the interface, along with a compact core-shell configuration. This internal electric field, in conjunction with the band structure of the heterojunction, effectively accelerates the separation of photogenerated electrons and holes. Additionally, a comprehensive analysis of the photocatalytic degradation mechanisms were presented, elucidating the intricate processes.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）