INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Zhiming Ding,Danfeng Wang,Gang Wang,Runjuan Du,Chuanting Fan,Yaheng Zhang,Jie Zhang,Zhiyong Tang
Electrophotocatalysis, a burgeoning and sustainable technique in the field of organic synthesis, faces challenges in practical implementation due to technological and equipment limitations. This work introduces the design and engineering of an electrophotocatalytic flow microreactor for efficient synthesis of phenol from benzene in one step. The study explored the effects of microreactor configuration and various parameters, such as applied voltage, light intensity, and the concentrations of oxidant DDQ and electrolyte TBABF4. The innovative microreactor, characterized by a compact electrode gap and an expansive optical window, achieved a high phenol yield of 21.2% within a short residence time of 10 min, a significant improvement over the 14.3% yield obtained by a batch reactor in 6 h. The microreactor delivered a remarkable phenol productivity of 116.8 mmol h–1 L–1, outperforming all previous electrophotocatalytic synthesis records. Furthermore, a techno-economic analysis demonstrated that small-scale electrophotocatalytic synthesis of phenol reduced the per-unit production cost, displaying economic advantages competitive with the traditional cumene method. This work provides valuable insights into the engineering of flow microreactors for electrophotocatalysis and offers guidance for the potential industrial-scale application of electrophotocatalytic flow reactions.
研究领域:
有机合成
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化学工程
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可持续技术
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Zeping Rao,Yan Yan,Wei Cai,Rong Wang,Zhenhua Wang,Fei Long,Yilong Ma,Chunlin Fu
Constructing ferroelectric hetrojuction and utilizing its piezo-photocatalytic performances is a promising approach for environmental remediation and sustainable energy conversion. However, challenges such as electron-hole recombination and interfacial instability limit the performance of piezoelectric heterojunction photocatalysts. In this study, a novel sandwich-structured heterojunction with a lattice-matched interface constructed by Sr 2 Bi 4 Ti 5 O 18 (SBTO) bismuth Aurivillius phase ferroelectric material and BiOCl (BOC) was developed via a selective etching strategy. This approach minimizes interfacial defects and stress, while ferroelectric polarization modulates charge distribution, enhancing redox activity. Finite element simulations and experimental results demonstrate that the SBTO/BOC heterojunction leverages intrinsic and interfacial electric fields to form dual electron transport pathways, significantly improving charge separation in both bulk and interface regions. The optimized SBTO/BOC heterojunction achieves a piezo-photocatalytic degradation rate of 0.285 min −1 for Rhodamine B, approximately twice that of Sr 2 Bi 4 Ti 5 O 18 under piezo-photocatalysis (0.147 min −1 ) and 13 times higher than photocatalysis alone (0.022 min −1 ). The heterostructure also efficiently degrades dyes, antibiotics, and Cr(VI), offering a robust design for high-performance piezo-photocatalytic systems.
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
CHEMICAL ENGINEERING SCIENCE
·
2024
·
IF 4.1
Zhiming Ding,Yaheng Zhang,Jian Ruan,Chuanting Fan,Runjuan Du,Jie Zhang,Zhiyong Tang
Electrophotocatalytic C-H hydroxylation of benzene is an emerging green technology with high potential for producing phenol in one step. However, it is still limited by efficiency and scale-up challenges in batch process. In this study, a novel electrophotochemical flow microreactor was designed and manufactured using 3D printing technology. Static mixers were incorporated to enhance the mixing. The effect of various parameters, such as electrode materials, reaction time, potential, and reactant concentration, etc., on the continuous synthesis of phenol in the as-developed microreactor was investigated. Furthermore, machine learning (ML) algorithms were employed to explore the impact of these parameters on the reaction efficiency. With cost-effective electrodes, higher phenol productivity was achieved in the present flow microreactor when comparing with batch counterpart and literature value. This study offers insights into the optimization of electrophotochemical microreactor for the hydroxylation of benzene, and provides guidance for exploring sustainable electrophotocatalytic organic synthesis in flow.
研究领域:
化学工程
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环境科学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Xingyu Shi,Li Li,Qingqing Zhu,Cheng Chen,Chunchang Wang
The emergence of piezo-photocatalysis inaugurates a nascent approach aimed at mitigating the rapid recombination of electrons and holes, thus augmenting catalytic efficacy. This work endeavors to fabricate Na 0.5 Bi 0.5 TiO 3 (BNT) nanosphere powders through a simplified hydrothermal method , whereby precise control over the quantity of tetrabutyl titanate , a titanium source, is employed. The piezo-photocatalytic performance of BNT nanospheres is meticulously scrutinized through the degradation of Rhodamine B (RhB) at a concentration of 5 mg/L, utilizing ultrasonic vibration and UV–visible light irradiation . Remarkably, the appropriate oxygen vacancies exerts a profound impact on the efficiency of piezoelectric photocatalytic degradation. Among the investigated catalysts, The material with the best performance exhibits the highest rate of piezo-photocatalytic degradation, boasting a rate constant (k value) of 0.052 min −1 . Furthermore, the BNT nanospheres exhibit commendable stability and reusability in the context of piezo-photocatalytic degradation. Elucidation of the piezo-photocatalytic mechanism of BNT nanospheres is attained through the identification of radicals and intermediates present in the degradation process . This research imparts invaluable guidance for the design and development of state-of-the-art and high-performance piezo-photocatalytic catalysts.
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
WATER AIR AND SOIL POLLUTION
·
2024
·Vol. 235
·期 9
·1-11
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IF 3.8
Wei Hongyan,Li Xuejiao,Chen Lizhu,Li Shujie,Liu Hongxu,Song Tiehong
At present, the visible light (Vis) catalytic oxidation, as a wastewater treatment approach without secondary pollution, has captured the interest of many researchers. However, the efficiency of visible photocatalysis still needs to be continuously improved. In this study, a piezoelectric photocatalyst Bi 2 WO 6 (BWO) responding to both Vis and ultrasound (US) was prepared, characterized, and employed to treat Rhodamine B (RhB) in water. The removal efficiencies of RhB under different systems (Vis/BWO, US/BWO, (Vis + US)/BWO) were investigated and the reuse capacity of BWO were examined. Moreover, the piezoelectric photocatalytic mechanism of (Vis + US)/BWO system on RhB removal was analyzed. The results exhibited that the prepared Bi 2 WO 6 possessed excellent photoresponsive and piezoresponsive properties, and the removal and mineralization of RhB could reach 100% and 77.2% within 60 min, respectively. Under the combined effect of photocatalysis and piezoelectricity, the superoxide radicals, hydroxyl radicals, and photogenerated holes produced, which were responsible for the degradation of RhB in (Vis + US)/BWO system. Graphical Abstract
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
高影响因子
INORGANIC CHEMISTRY
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2025
·
IF 4.7
Jing Xu,Kangle Wan,Jianjie Wu,Yunchao Wu,Wei Yan,Lichuan Zhang,Yuanping Chen,Yingcong Wei
During the piezoelectric photocatalytic process, the surface curvature of the piezoelectric photocatalyst undergoes dynamic changes under the influence of external mechanical forces. However, the correlation between the surface curvature and catalytic performance remains largely unexplored. Here, we demonstrate that decreasing the radius of curvature of MoSe2 significantly enhances its piezoelectric-photocatalytic activity for C–N coupling reactions, enabling imine synthesis from benzylamine. Comprehensive characterization and DFT calculations together show that the piezoelectric effect in the curved MoSe2 structure inhibits photogenerated charge carriers from recombination, improving carrier utilization efficiency. Additionally, the surface curvature effect induced by ultrasonic driving reduces the band gap. It promotes the effective transfer of electrons from Mo atoms in MoSe2 to −NH2 in benzylamine, thereby facilitating the activation of the benzylamine molecule. As a result, the synergistic effects of the piezoelectric and curvature characteristics significantly enhance the photocatalytic performance of MoSe2 toward the C–N coupling of benzylamine. This study not only provides new insights into interfacial reaction mechanisms in piezoelectric photocatalysis but also offers a novel perspective for designing high-performance catalytic systems.
研究领域:
材料科学
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催化化学
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理论计算
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
·
IF 9.4
Jiamin Li,Changheng Chen,Jiangwen Bai,Yuehui Jin,Chongfeng Guo
Although self-polarized piezoelectric semiconductor photocatalysts significantly enhance the separation of internally generated photocarriers, their photocatalytic performance is constrained by insufficient internal polarisation and a wide bandgap. Additionally, the low concentration of oxygen in contaminated water limits the effectiveness of such photocatalysts. To the best of our knowledge, this study was the first to determine that the piezoelectric properties of Bi 2 MoO 6 (BMO), was due to the polarisation displacement of the MoO 6 octahedron that occurred along the x -axis, as revealed through density functional theory (DFT) calculations. Subsequently, the self-polarisation characteristics of BMO were enhanced and the bandgap was reduced through Fe 3+ doping, as confirmed via atomic force microscopy, hysteresis loop measurements and DFT analysis, resulting in an increase in surface potential from 30.41 to 46.80 mV. Furthermore, an S-scheme WO 3 /Bi 2 MoO 6 :Fe 3+ heterojunction was developed to improve the surface separation of photoelectron–hole pairs. The piezoelectric photocatalytic performance of this sample was evaluated through the degradation of rhodamine B (RhB) and oxygen generation. Results indicated that the degradation rate of RhB reached 98.63 % within 25 min under the synergistic influence of light and ultrasound, which was 1.85 and 9.60 times higher than those of Bi 2 MoO 6 and WO 3 , respectively. Furthermore, the optimal oxygen production efficiency was 167.41 µmol·g −1 ·h −1 . This study provides a novel approach for designing more efficient piezoelectric photocatalysts.
研究领域:
材料科学
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环境科学
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理论计算
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
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2025
·
IF 6.3
Lujie Ruan,Honglin Zhou,Xiangyu Li,Yuxuan Wang,Pengfei Luo,Haixuan Wang,Jiangping Ma,Chaogang Ban,Xiaoxing Wang,Jiangjie Ye,Yajie Feng,Jili Yue,Li-Yong Gan,Xiaoyuan Zhou,Ji-Yan Dai
Addressing the growing demand for clean energy necessitates innovative approaches to enhance hydrogen production efficiency. Combining photo-catalysis and piezo-catalysis offers a synergistic strategy for energy conversion, yet the limited charge transfer and separation efficiency in pure Bi 2 WO 6 hinders its catalytic performance. Herein, by adopting Ag nanoparticles deposited on Bi 2 WO 6 nanosheets (Bi 2 WO 6 –2% Ag) as a paradigm, it is demonstrated that the incorporation of Ag significantly enhances charge separation and transfer via improved piezoelectric and electronic interactions. This modification not only boosts the piezoelectric coefficient by 1.78-fold but also promotes the generation of piezo-induced and photogenerated carriers. Consequently, Bi 2 WO 6 –2% Ag achieves a hydrogen yield of 14.3 mmol·g -1 ·h -1 under piezo-catalytic conditions, a 60.7% improvement compared to pristine Bi 2 WO 6 . Under combined piezo-photo-catalytic conditions, the hydrogen yield further increases to 30.9 mmol·g -1 ·h -1 . The enhanced performance is attributed to the synergistic effects of ultrasonic vibration and ultraviolet light, which induce band bending and polarization-driven charge migration, facilitating hydrogen production. This study provides valuable insights into the integration of noble metal deposition and piezo-photo-catalysis, opening a new pathway for the design of advanced catalysts for sustainable hydrogen energy solutions.
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
CERAMICS INTERNATIONAL
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2024
·
IF 5.1
Peng Wang,Shiqi Zhong,Ying Wang,Liyao Zou,Fangyuan Yu,Cong Lin,Mei Lin,Min Gao,Chunlin Zhao,Xiao Wu,Chao Chen
The pursuit of high-performance piezo-photocatalysts through structural modifications has been a focal point of investigation within the realm of related scientific disciplines. In this study, we successfully designed Er-doped Bi 0.5 Na 0.5 TiO 3 –BaTiO 3 combined with rare earth ion doping and solid solution modification, and the prepared particles exhibited homogeneous grain sizes and optimized concentrations of oxygen vacancies ( O V ). The synergistic incorporation of O V (accelerator for catalytic reaction) and Er 3+ results in an impressive 12-fold enhancement of the piezo-photocatalytic rate when degrading the Rhodamine B dye. The optimal composition 0.96BNT-0.04BT-Er demonstrates outstanding electrochemical properties , including a superior photocurrent response and minimal impedance, highlighting its exceptional performance in piezo-photocatalysis. The fundamental enhancement in catalytic performance can be attributed to the reconfiguration of the band structure of 0.96BNT-0.04BT-Er, which has been meticulously calculated utilizing DRS and VB-XPS and the internal mechanism was explained in detail. This research serves as a source of inspiration for the investigation of solid solutions among piezo-photocatalysts and sheds light on the vital role of band structure in governing catalytic performance.
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
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 45
·2205121
·
IF 19.924
Lixuan Zhang,Kai Wang,Yanqi Jia,Liping Fang,Chen Han,Jiaquan Li,Zongping Shao,Xinyong Li,Jieshan Qiu,Shaomin Liu
Piezoelectric polarization portrays a promising technology to regulate the photogenerated charge carrier separation and transfer behaviors, and the design of multifunctional catalysts with piezo-phototronic effect is a key step. One strategy is to prepare a composite catalyst combining the ideal properties from each individual component. Herein, a facial dopant-induced self-assembling strategy is reported to fabricate an ultracompact nanocomposite (LaFeO 3 /ZnFe 2 O 4 /La 2 O 3 ) with enhanced efficiency for piezo-photocatalysis. The composite is synthesized at 800 °C from the one-pot method, thus the self-constructed interface is created during multi-phase formation, providing the intimate grain-to-grain contact between the semiconductive LaFeO 3 and piezoelectric ZnFe 2 O 4 /La 2 O 3 phases. In such a composite, a synergistic effect for oxygen activation is realized via the effective manipulation of the photogenerated charge carrier separation and spatial transportation through the vibration-created piezopotential. A high piezoelectric coefficient (d 33 ) up to 826 pm V −1 and a superior H 2 O 2 yield of 403 µmol g −1 h −1 (in open air and pure water) are achieved on the optimized composite, outperforming most of the reported lead-free piezo-photocatalyst. The ultracompact composite is very robust without any decay in H 2 O 2 -delivering capability after many cyclic tests. This study provides a universal strategy for the rational design of high-performance piezo-photocatalysts.
研究领域:
材料科学
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环境科学
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化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Shishi Xu,Yunxiang Zhang,Yu Wang,Jikun Chen,Chenliang Zhou,Zhichao Mu,Zhe Zhang,Jiali Zhang,Jue Wang,Qinfang Zhang
The development of efficient and stable photocatalysts is of great significance for tailoring energy crisis and environmental pollution. In this study, novelty Sillén-Aurivillius BaBi 4 TiNbO 11 Cl ferroelectric materials were successful synthesized. Results of characterizations exhibit high crystallinity of BaBi 4 TiNbO 11 Cl nanoplates with the less impurity phases were fabricated from NaCl/CsCl molten-salt method due to the sufficient precursor ionic diffusion. This layered crystal structure of BaBi 4 TiNbO 11 Cl nanoplates can promote the separation of photon-generated carriers, and thus its photocatalytic activity is 3.73 and 1.58 times higher than that of other samples, respectively. Since the distortions of [TiO 6 ] and [NbO 6 ] octahedron in [BiTiNbO 7 ] perovskite blocks cause the ferroelectric polarization in BaBi 4 TiNbO 11 Cl, the piezo-photocatalytic performance is also assessed by mechanical force from ultrasound. Further investigations on the piezo-photocatalytic mechanisms of BaBi 4 TiNbO 11 Cl nanoplates, the internal electric fields induced by ferroelectric polarization can promote the efficient separation of free charges effectively, which enhances the catalytic activities of about 4.74 times by the synergistic effect of visible light and ultrasonic excitations. This work focuses on revealing the differences of photocatalytic, piezocatalytic and piezo-photocatalytic mechanisms for BaBi 4 TiNbO 11 Cl nanoplates, which provides a reference to develop other efficient piezo-photocatalysts of Sillén-Aurivillius layered oxyhalide materials.
研究领域:
材料科学
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环境科学
·
能源科学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Gaiying Han,Pei Wang,Xinxin Zhang,Zhaoyang Wang,Haitao Yu,Zhenzi Li,Ying Xie,Wei Zhou
To solve the limited active sites, high carrier recombination rate, and the photo-corrosion issues of layered MoS 2 , a novel chemically bonded BaTiO 3 /MoS 2 (BM-x, x = 2, 5, 10, and 20) dual piezoelectric heterojunction was synthesized. Density functional theory (DFT) calculations combined with experimental characterizations revealed that chemical bonds are formed between the 3d orbitals of Ti in BaTiO 3 and the 3p orbitals of S in MoS 2 . These strong interactions enable BaTiO 3 to be firmly anchored on the surface of 2D MoS 2 sheets and thus enhance the structural stability of the catalyst. Furthermore, the intimate interfacial contact facilitates electron transfer from BaTiO 3 to MoS 2 , while the formed type-II heterostructure induces a built-in electric field that significantly improves the generation and separation of photogenerated charge carriers. Under the synergistic effect of ultrasonic vibration and light irradiation, the valence band maximum (VBM) and conduction band minimum (CBM) of the two phases become tilted, resulting in a significant increase in the planar potential difference between them and therefore enhancing the built-in electric field. Thus, the BM-10 sample achieves a high degradation rate and an excellent Cr(VI) removal efficiency. These findings provide new insights into the structural regulation and the optimization of catalytic activity for MoS 2 -based piezoelectric photocatalysts.
研究领域:
材料科学
·
催化化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）