ACS Catalysis
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2026
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IF 13.6
Pengfei Lv,Zhiru Xie,Guangping Yi,Yiping Zhao,Mengfan Shang,Xiaofan Yang,Sijie Wen,Zhao Jing,Qiang Wang,DongSheng Song,Pengyi Tang
Solar-driven photoelectrochemical hydrogen production is a promising way to achieve carbon neutrality, but severe charge recombination in photoanodes limits the conversion efficiency. Herein, the conjugated polycarbazole framework (CPF-TCB) as the hole transport layer and NiFeOOH as the oxygen evolution cocatalyst are combined to simultaneously enhance the efficiency of charge separation and surface catalytic kinetics in BiVO4 photoanodes. CPF-TCB provides an appropriate energy level for rapid hole extraction while suppressing recombination, whereas NiFeOOH markedly increases the density of intermediate surface states (i-SS) to accelerate the oxygen evolution reaction. Consequently, the constructed BiVO4/CPF-TCB/NiFeOOH photoanode achieves a photocurrent density of 4.25 mA cm–2 at 1.23 VRHE and exhibits photostability for 20 h. This work provides a paradigm for exploiting the synergistic effects of organic hole transport layers and oxygen evolution cocatalysts toward efficient and durable solar-driven hydrogen production.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Mingming Dong,Zewen Huang,Shuyong Yang,Peng Zhou,Shenghui Tu
The growing prevalence of antibiotic residues in aquatic environments, particularly recalcitrant antibiotics like tetracycline (TC), poses significant ecological risks. In this study, a novel Bi 2 WO 6 /Mo-doped BiVO 4 /NH 2 -UiO-66 (BBU) ternary heterojunction photocatalyst was successfully synthesized via a solvothermal method to enhance visible-light-driven TC degradation through component synergy. Systematic characterization revealed that Mo doping induced lattice distortion in BiVO 4 , while the incorporation of NH 2 -UiO-66 drastically increased the specific surface area from 23.647 to 398.804 m 2 ·g −1 , providing abundant active sites. Photoluminescence (PL) and Electrochemical Impedance Spectroscopy (EIS) analyses demonstrated that the optimized BBU-3 sample exhibited the lowest charge carrier recombination rate. Under visible light irradiation for 80 min, BBU-3 achieved 95.2% degradation of TC, with reaction kinetics 8.61, 15.76, and 5.01 times higher than those of pristine Bi 2 WO 6 , BiVO 4 , and binary heterojunctions, respectively. Degradation-trapping experiments and electron paramagnetic resonance (EPR) measurements indicate that h + , 1 O 2 and ·O 2 - are the primary reactive species, suggesting that this system is a synergistic radical-non-radical degradation system. Additionally, possible degradation pathways and intermediate toxicity were evaluated. This work offers a promising strategy for designing efficient bismuth-based MOF heterojunctions for antibiotic remediation in water.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Ze Liu,Yadong Hu,Chengkai Li,Zhenyu Zhang,Tingzhe Shen,Danni Zeng,Rongfeng Guan,Changjian Zhou,Pengyu Dong
Photocatalysis technology can degrade organic pollutants in wastewater, improving the ecological environment and protecting biodiversity. The BiVO 4 stable chemical properties of BiVO 4 make it a robust candidate for photochemical applications. Moreover, its broad light absorption spectrum and optimal band structure further enhance its potential, driving widespread research interest. The introduction of the eco-friendly biperovskite Cs 2 AgBiBr 6 enhanced BiVO 4 ′s surface area and visible light absorbance. Simultaneously, the doping process introduces impurities that modify charge transfer pathways, thereby enhancing the separation efficiency of photogenerated electron-hole pairs. When contrasted with pure BiVO 4 , the W-BiVO 4 /Cs 2 AgBiBr 6 composite demonstrates superior surface area characteristics and exhibits stronger absorption within the visible light spectrum. Within 40 min after exposure to visible light, the efficiency of W-BiVO 4 /Cs 2 AgBiBr 6 photocatalyst to degrade ofloxacin (OFX) and meloxicam (MEL) was 93.15 % and 92.70 %, respectively. Based on the toxicity analyses and antimicrobial assays simulated by the software, no highly toxic substances were found in the degradation intermediate products of OFX and MEL. The catalysts’ energy band structure and photoelectrochemical properties showed that W-BiVO 4 /Cs 2 AgBiBr 6 followed the S-scheme heterojunction charge transfer mechanism. By integrating BiVO 4 with other semiconductors in the form of S-scheme heterojunctions, this study explores a strategy that may effectively improve photocatalytic efficiency, particularly in pollutant degradation applications.
研究领域:
环境科学
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材料科学
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CHEMICAL PHYSICS LETTERS
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2025
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IF 3.1
Tianyuan Xiao,Yong Li,Xiaoya Ding,Guangming Yin
In complex marine environments, the search for efficient antibacterial materials has become a research hotspot to combat marine biofouling. BiOI@BiVO 4 heterojunctions were fabricated by the hydrothermal processes for use in antibacterial field. BiOI@BiVO 4 heterojunction shows superior antibacterial performance to BiVO 4 , with >99.99 % Pseudomonas sp. killed in 4 h. Further photoelectrochemical experiments have shown the unique band structure greatly promotes the separation efficiency of photoinduced charge carriers and lowers the recombination rate of e − -h + , and thereby generates more highly oxidizing free radicals, achieving efficient sterilization. This research furnishes promising concepts and orientations for the evolution of high-efficiency antibacterial materials.
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JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Zhansheng Wu,Yongtao Xue,Xiufang He,Yunfeng Li,Xia Yang,Zhilin Wu,Giancarlo Cravotto
The development of a highly efficient and rapid method for the accurate preparation of photocatalysts with novel morphologies is a hot research topic. The different morphologies of BiVO 4 was prepared using surfactants-assisted microwave method, and demonstrated irregular (no surfactant), octahedral (sodium dodecyl benzene sulfonate), olive-like (polyvinylpyrrolidone) and hollow structures (ethylenediaminetetraacetic acid), respectively. The BiVO 4 -CdS were synthesized using the chemical-bath-deposition method with different morphologies of BiVO 4 as the substrates. The hollow structure of BiVO 4 displayed the highest photocatalytic performance. Moreover, the photodegradation rates of the hollow structure BiVO 4 -CdS on tetracycline hydrochloride and ciprofloxacin were about 1.8 and 1.5 times higher than the corresponding BiVO 4 , indicating that the Z-scheme heterojunction can improve the photogenerated electron pairs separation efficiency. Furthermore, the regulation mechanism of morphology and energy-band position, as produced using the surfactants, has also been thoroughly investigated in this work, which provides a novel insight into the efficient and rapid preparation of photocatalysts with special morphology and high performance.
研究领域:
材料科学
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环境科学
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2022
·Vol. 30
·期 6
·15991-16002
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IF 5.19
Zhang Xueying,Liu Yonggang,Yu Yonghao,Wang Lifen,Lin Yinjun
Here, we report a simple and efficient strategy for evenly in situ growth of Cu 2 (OH) 3 F nanosheets on BiVO 4 spheres as a novel photo-Fenton-like catalyst using hydrothermal method. The Cu 2 (OH) 3 F/BiVO 4 composite catalysts showed great performance for the organic pollutants degradation under visible light irradiation due to the efficient electron transfer and copper species transformation. The synergetic between Cu 2 (OH) 3 F and BiVO 4 not only promoted the separation of electrons and holes but also enhanced the Cu 2+ reduction, thus produced more strong oxidative radicals under a wide pH value range. The activity of Cu 2 (OH) 3 F/BiVO 4 composite for methylene blue degradation was 6.03 and 5.47 times more than that of pristine Cu 2 (OH) 3 F and BiVO 4 , respectively. The composite catalysts were characterized with various methods and their stability and adaptability were also evaluated. Finally, a possible photo-Fenton-like reaction mechanism was also proposed based on the band structure/position and reaction species.
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FOOD CHEMISTRY
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2022
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IF 9.231
Zhengzheng Zhao,Zhifang Wu,Xueling Lin,Fangjie Han,Zhishan Liang,Likun Huang,Mengjiao Dai,Dongxue Han,Lipeng Han,Li Niu
A simple low-cost label-free photoelectrochemical (PEC) biosensing platform based on red blood cell shaped BiVO 4 modified g-C 3 N 4 was designed for tetracycline detection under room temperature. The prepared g-C 3 N 4 /BiVO 4 heterojunction not only demonstrated a high surface area, excellent physicochemical stability and favorable PEC activity, but also can be employed as nanostructure support for aptamers to construct a visible-light-driven PEC aptasensor due to rich π-π accumulation sites. More importantly, the proposed PEC aptasensor showed a favorable linear toward tetracycline in the range from 5 × 10 -9 to 2 × 10 -7 M with a detection limit of 1.6 nM, which well covered the Food Standards Testing requirements. Practical food sample analysis further revealed the accuracy and feasibility of the g-C 3 N 4 /BiVO 4 heterostructure based PEC platform. It is expected that such a label-free and cost-effective PEC strategy should act as a promising candidate for tetracycline determination in food quality control and supervision.
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Materials Today Communications
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2022
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IF 3.662
Yaxi Tian,Dongyun Que,Rongfeng Guan,WenYan Shi
Cu-BiVO 4 photocatalysts with an excellent visible light response were successfully fabricated by modification with a SiO 2 template and Cu doping. The SiO 2 hard template changes the morphology of BiVO 4 from rod to sphere. The structure, chemical composition, and optical and photoelectrochemical properties of the photocatalysts were characterized. The photocatalytic activity was measured through RhB degradation under visible light irradiation. The results indicate that copper is successfully doped in the form of Cu 2+ and Cu + . Copper can be used as electron capture traps, which reduces the carrier recombination rate. Compared with other reports, Cu doping is found to greatly improve the ability of BiVO 4 to degrade RhB. The crystal phase of BiVO 4 is not significantly changed due to Cu doping, and the optimal doping amount is 10%. The RhB degradation rate of the optimal 10% Cu-BiVO 4 sample reaches 99.7% within 70 min. Cu-BiVO 4 exhibits stable degradation activity, and the photocatalytic kinetics follows a pseudo-first-order equation. ·O 2 - and h + play dominant roles in RhB degradation by Cu-BiVO 4 . The mechanism for the enhancement of the BiVO 4 photocatalytic ability was researched with first-principles calculations. The results of band structure and density of states calculations reveal that Cu doping not only promotes electron transitions but also acts as an electron trap to reduce the recombination rate and enhance the efficiency of separation and transfer of photogenerated charge carriers. This work highlights a new way to improve the photocatalytic performance and applications of BiVO 4 .
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Journal of Environmental Chemical Engineering
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2022
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IF 7.968
Haiyang Fan,Guiyun Yi,Zhengting Zhang,Xiuxiu Zhang,Peng Li,Chuanxiang Zhang,Lunjian Chen,Yulong Zhang,Qi Sun
Herein, we successfully fabricated the Ag deposited BiVO 4 (ABVO) electrode via the combination of electrodeposition and photodeposition for efficient photoelectrocatalytic degradation of β-naphthol under visible-light illumination (λ > 420 nm). The photocurrent density of ABVO photoanode was around 1.6 times higher than that of BiVO 4 (BVO) under visible-light irradiation at 1.5 V vs. Ag/AgCl, which was ascribed to the reduced recombination rate of photoinduced electron-hole pairs, as confirmed by electrochemical impedance spectroscopy (EIS) and Mott-Schottky plots. Additionally, the photoelectrocatalytic (PEC) degradation rate of β-naphthol (10 mg L −1 , 300 mL) by ABVO could approximately reach 80%, whose corresponding kinetic constant was 1.56 times higher than BVO. Based on the radical quenching experiments and EPR results, the •OH and •O 2 - radicals played crucial roles in PEC degradation of β-naphthol. The enhanced PEC performance of ABVO can be ascribed to the synergy of photocatalysis , electrocatalysis and the localized surface plasmon resonance (LSPR) effect of deposited Ag particles, which can effectively suppress the recombination of photoinduced electron-hole pairs, thereby prolonging the photo-excited charges lifespans and promoting the PEC performance. Furthermore, the ABVO photoanode possesses excellent recyclability , outstanding stability and strong resistance to acid and alkali, which can be a promising candidate for PEC organic contaminants degradation.
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Journal of Energy Chemistry
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2021
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IF 9.676
Kai Song,Fang He,Ergang Zhou,Lin Wang,Huilin Hou,Weiyou Yang
The sluggish kinetics for water oxidation is recognized as one of the major problems for the unsatisfied photoelectrochemical (PEC) performance. Herein, we developed a feasible strategy based on in-situ selective surface cation exchange, for activating surface water oxidation reactivity toward boosted PEC water oxidation of BiVO 4 photoanodes with fundamentally improved surface charge transfer. The as-constructed Co/BiVO 4 photoanodes exhibit 2.6 times increase in photocurrent density with superior stability, in comparison to those of pristine counterpart. Moreover, the faradaic efficiency of as-fabricated photoanode can be up to ∼ 95% at 1.23 V (vs. RHE). The unique selective replacement of Bi by Co on the surface could modify the electronic structure of BiVO 4 with reduced energy barrier of the deprotonation of OH* to O, thus favoring the overall excellent PEC performance of Co/BiVO 4 photoanode.
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Journal of Environmental Chemical Engineering
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2023
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IF 7.7
Qiang Fu,Yue Meng,Yiyang Yao,Hui Shen,Bo Xie,Zheming Ni,Shengjie Xia
A synergistic strategy of Facet engineering and the construction of Z-scheme heterojunctions is expected to improve internal consumption and insufficient carriers in photocatalysis significantly. In this paper, Fe 2 O 3 nanoparticles were selectively grown on the (110) facet of BiVO 4 , and facet orientation-supported Z-scheme heterojunction of BiVO 4 (110)-Fe 2 O 3 was constructed for the photocatalytic degradation of tetracycline . The effects of catalyst dosage, pH, temperature, and other conditions on the degradation performance were systematically investigated and found to have excellent catalytic activity , structural stability, and reusability. The removal of TC (15 mg·L −1 ) under 60 min visible light irradiation were 57.7%, 81.7%, and 91.5% for single-phase catalyst, non-directionally loaded BiVO 4 -Fe 2 O 3 and directionally loaded BiVO 4 (110)-Fe 2 O 3 Z-scheme heterojunction (0.3 g·L −1 ), respectively. Combining photoelectric testing and DFT calculation, it was confirmed that the presence of the built-in electric field from BiVO 4 (110) pointing to Fe 2 O 3 (110) in BiVO 4 (110)-Fe 2 O 3 Z-scheme heterojunction facilitates the separation and transfer of photogenerated carriers and significantly improves the photodegradation performance of the material. In addition, the intermediates and degradation pathways were investigated in detail.
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NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 40
·18659-18670
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IF 3.3
Zhentao Wang,Waheed Iqbal,Jingjing Wang,Ninghui Chang,Chuanguang Qin
Degrading dye waste using inexpensive synthetic photocatalysts is intriguing since it provides the dual advantage of treating water and managing waste simultaneously. There is considerable interest in the construction of heterojunctions for their efficiency in using solar energy for the degradation of wastewater contaminants and enhancing the solar conversion efficiency. Herein, BiVO4 microspheres and 2D g-C3N4 nanosheets were used to synthesize a direct Z-scheme BiVO4/g-C3N4 heterojunction through a hydrothermal calcination approach. The distinct 0D/2D intimate contact heterostructure displayed a high interfacial area and broader visible-light absorption range together with high photoexcited charge pair mobility. Optimizing the content of the BiVO4 microspheres in the heterostructure led to the maximum efficiency for the visible-light photodegradation of rhodamine B (RhB), which was about 12.5 and 2.4 times higher than that for pure BiVO4 and g-C3N4, respectively. Moreover, the quenching effects of various scavengers demonstrated that ˙O2− and ˙OH radicals were the principal active species responsible for ameliorating the photocatalytic performance for RhB degradation. The demonstrated strategy for boosting the photocatalytic performance with Z-scheme systems may help the advancement of high-performance photocatalysts for sustainable and efficient pollutant degradation and energy applications.
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