NEW JOURNAL OF CHEMISTRY
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2024
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IF 2.7
Ziwei Zhao,Qi Ling,Shangkun Deng,Ziliang Li,Jianguo Lv,Lei Yang,Chunbin Cao,Zhaoqi Sun,Miao Zhang
A type II heterostructured BiVO4/MIL-88B(Fe) composite was successfully synthesised for the photocatalytic degradation of tetracycline hydrochloride (TC-HCl) by a simple hydrothermal method. Thin film materials avoid secondary pollution of powder materials. The samples were characterised by XRD, SEM, TEM, XPS, UV-Vis DRS, and PL. The samples were also characterised for their optoelectronic properties. 3-BV/MIL-88B(Fe) (3 mmol BiVO4) was the most effective catalyst for the degradation of TC-HCl, achieving 92.1% removal at 75 min with a degradation rate constant of 22.79 × 10−3 min−1. Moreover, durability evaluation and TC-HCl degradation potential evaluation were also performed. We looked into how TC-HCl concentration, pH and ions affect the degradation results. In order to determine the active ingredients, experiments for trapping free radicals and EPR tests were performed. The results indicated that the main active species were h+ and ˙OH. It is proposed that a reasonable type-II heterostructure can help to explain the photocatalytic mechanism. The current study creates a stable photocatalytic system by compositing electrocatalytic and photocatalytic materials to achieve efficient antibiotic degradation and provides a viable strategy for future applications.
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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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
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IF 21.1
Yongqian Cui,Xinxin Liang,Qibing Dong,Ximing Li,Yuqing Chen,Jingyi Wang,Ewa Kowalska,Antonio Otavio T. Patrocinio,Chuanyi Wang
Photocatalytic conversion of polylactic acid (PLA) plastic waste into value-added chemicals offers a promising approach for sustainable development. However, achieving high selectivity toward a desired product in the conversion remains challenging due to uncontrolled formation of oxygenated intermediates. Herein, we demonstrate a highly selective strategy for converting lactic acid (LA) derived from PLA hydrolysis into acetic acid, which is achieved by precisely regulating radical generation using a sulfur-doped BiVO 4 /In 2 S 3 (S-BiVO 4 /In 2 S 3 ) S-scheme heterojunction. DFT theoretical calculations and in-situ electron paramagnetic resonance results reveal that sulfur doping reduces the formation energy of V 4+ from V 5+ in BiVO 4 , facilitating electron transfer and O 2 dissociation. This promotes •OH radical generation via a proton-coupled electron transfer process by supplying protons to lower the •OH formation barrier. Consequently, •COCH 3 intermediates selectively interact with •OH radicals to form acetic acid. The optimized S-BiVO 4 /In 2 S 3 catalyst achieves an acetic acid generation rate of 3.97 mmol g −1 h −1 with an apparent quantum efficiency (AQE) of 1.42 % at 360 nm. Moreover, the acetic acid selectivity at S-BiVO 4 /In 2 S 3 reaches 84.3 %, which is significantly higher than that of its counterpart, pristine BiVO 4 (27.3 %). The present work opens a new avenue for designing efficient photocatalysts to selectively convert waste plastics into value-added products.
研究领域:
环境催化
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材料化学
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光化学
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可持续化学
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废物资源化
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表面科学
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纳米催化
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产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
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2024
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IF 5.3
Chuanyun Yang,Xingjian Zhang,Zhengdao Li,Zhishuai Wang,Jiping Shi,Haiquan Xie,Ting Li,Yong Zhou
A series of hybrid films were designed and fabricated by in situ growth of Ag 2 S nanoparticles with varying content on BiVO 4 nanosheets deposited on stainless steel mesh. The formation of a p-n heterojunction between Ag 2 S and BiVO 4 enabled an extended spectral response range and facilitated the separation of charge carriers through a single directional pathway for electron transport. Exploiting these advantages, Ag 2 S/BiVO 4 composites were employed in various photocatalytic applications under simulated solar irradiation. The results demonstrated, in terms of water purification, that the composite not only possessed photocatalytic ability to degrade RhB or Cr(VI) individually but also exhibited significantly enhanced photocatalytic efficiency in simultaneously removing mixed pollutants containing RhB and Cr(VI). In terms of CO 2 conversion, Ag 2 S/BiVO 4 also displayed a stronger photocatalysis capability compared to pure BiVO 4 film. Furthermore, the immobilized Ag 2 S/BiVO 4 film exhibited improved mechanical strength and long-term stability, making it highly suitable for practical applications.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
DIAMOND AND RELATED MATERIALS
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2025
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IF 5.1
Liu Ouyang,Huihu Wang,Lizhong Duan,Jingle Zhang,Shenghao Jiang,Yu Xiong,Chenhuinan Wei,Xing Xiang,Yun Zhao,Qianyu Wang
Tetracycline (TC), a widely detected aquatic pollutant, poses significant ecological risks, necessitating the development of effective remediation strategies. Photocatalytic degradation, which converts TC into harmless CO 2 and H 2 O, offers a promising eco-friendly solution. This study successfully synthesized a novel 2D/3D g-C 3 N 5 /BiVO 4 (N-CN/BiVO 4 ) S-scheme heterojunction via a hydrothermal method. The optimized 5 % N-CN/BiVO 4 exhibited exceptional performance in activating the Fe 2+ /PMS system under visible light, achieving a 96.8 % TC removal efficiency with an apparent rate constant 4.4 times higher than that of BiVO 4 . Mechanistic studies, including ultraviolet photoelectron spectroscopy (UPS) and valence band X-ray photoelectron spectroscopy (VB-XPS), confirmed the S-scheme interfacial charge transfer pathway. Furthermore, radical quenching experiments revealed that the enhanced photocatalytic activity originated from the synergistic contribution of multiple reactive species ( OH, SO 4 − , O 2 − , h + , and 1 O 2 ), validating both the efficient activation of Fe 2+ /PMS and the proposed S-scheme charge transfer mechanism. This work presents an innovative approach for high-performance pollutant degradation by coupling an S-scheme heterojunction with the Fe 2+ /PMS activation system.
研究领域:
环境科学
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光催化
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水污染修复
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材料科学
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化学工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Guanshu Zhao,Jing Ding,Fanyang Zhou,Xueqi Chen,Liangliang Wei,Qingwei Gao,Kun Wang,Qingliang Zhao
Inefficient utilization of photo-induced charge carriers and low recyclability are limitations for photocatalyst to get access to the practical application. A novel ternary BiVO 4 /g-C 3 N 4 /NiFe 2 O 4 composite with dual Z-scheme heterojunction was successfully developed and constructed to enhance the separation of photo-induced charge carriers and the absorption range of visible light. The structure, composition, morphology, magnetic, and optical properties of this photocatalyst were investigated comprehensively. The photocatalytic performance, mechanism, and pathway of ofloxacin degradation under visible light were studied. Results indicated that the internal interaction between different semiconductors presented the successful fabrication of ternary composite, and its red shift of adsorption range of visible light contributed to an enhancement of photocatalytic ability. The as-prepared ternary composite exhibited highest photocatalytic removal rate constant for ofloxacin, which was 3.8, 16.3 and 71.2 times as much as that of the pure BiVO 4 , pure g-C 3 N 4 and pure NiFe 2 O 4 , respectively. The five successive recycling experiments exhibited the high photocatalytic stability of the as-prepared catalyst, with simple recovery operation due to its magnetic property. The holes and superoxide radicals dominated the photocatalytic degradation process of pollutants. A dual Z-scheme heterojunction other than conventional heterojunction was responsible for the enhancement on redox capacity and the separation of charge carriers. Different transformation products during ofloxacin photocatalytic degradation were identified and transformation pathway was put forward. This study provides a promising strategy on the application of visible-light-driven photocatalysts in water treatment.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Liye Shuai,Qun Li,Jia Liu,Jiabin Wu,Xinning Huang,Jianglong Yu,Jinxiao Dou,Huaiguang Li,Xingxing Chen
The rational design of efficient photoanodes is essential for advancing solar-driven water oxidation. This study addresses the intrinsic challenges of bismuth vanadate (BiVO 4 ), such as sluggish charge kinetics and severe surface recombination, through the construction of a ternary composite photoanode via synergistic interfacial modification and cocatalyst integration. A hierarchical architecture was fabricated through sequential low-temperature chemical bath deposition and electrodeposition, integrating a CoFe-layered double hydroxide (CoFe-LDH) interlayer and nickel-hydroxynitrate (Ni 2 (NO 3 ) 2 (OH) 2 ) onto BiVO 4 substrates. The optimized BiVO 4 /CoFe-LDH@Ni 2 (NO 3 ) 2 (OH) 2 photoanode achieves a photocurrent density of 5.57 mA/cm 2 at 1.23 V vs. reversible hydrogen electrode (V RHE ) under Air Mass 1.5 Global (AM 1.5G) illumination, accompanied by a 251 mV cathodic shift in onset potential. Comprehensive characterizations-including X-ray photoelectron spectroscopy (XPS), open-circuit photovoltage (OCP) decay, time-resolved photoluminescence (TRPL) decay, electron paramagnetic resonance (EPR) and Kelvin probe force microscopy (KPFM)-reveal that the oxygen vacancy (O v )-rich CoFe-LDH@Ni 2 (NO 3 ) 2 (OH) 2 layer facilitates efficient charge transfer within BiVO 4 and generates a pronounced built-in electric field, thereby significantly enhancing interfacial charge separation. Concurrently, density functional theory (DFT) calculations demonstrate that the interfacial effect of CoFe-LDH@Ni 2 (NO 3 ) 2 (OH) 2 substantially lowers the thermodynamic barrier for the oxygen evolution reaction (OER). This study offers fundamental insights for fabricating high-efficiency BiVO 4 -based photoanodes.
研究领域:
材料科学
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物理化学
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能源化学
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光催化
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半导体电化学
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产品关联
DOI
高影响因子
CHEMOSPHERE
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2022
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IF 8.943
Lingli Tu,Yiyuan Rong,Zebin Yu,Shuo Chen,Jiangli Sun,Zhihong Li,Jialu Li,Yanping Hou
Efficient photoelectrodes are highly desired in bio-photoelectrochemical systems (BPES). Herein, in this paper, the oxygen defect-rich BiVO 4 /Ni 9 S 8 photoanode was developed and coupled with a biocathode for enhanced chlortertracycline (CTC) degradation and current generation in the self-biased BPES. Characterization results showed that the optimized BiVO 4 /Ni 9 S 8 -7 mg-150 °C NF exhibited the best photocatalytic activity , due to that the rich oxygen vacancies and Ni 9 S 8 could significantly improve light absorption , enhance photo-generated carriers separation, and accelerate charges transfer. CTC (20 mg L −1 ) removal efficiency from the BPES was about 1.3 times (82.3% vs 64.7%) of that from the unilluminated reactor, and current output (0.68 A m −3 ) was about 7.6 times (0.09 A m −3 ). The dominant species in genus level was Geobacter , which is capable of reducing nitroaromatics and in favor of reductive dehalogenation of CTC. Besides, Comamonas and Rhodopseudomonas that are capable of degrading antibiotics were also detected. Possible degradation pathways and mechanism of CTC degradation in the BPES were proposed. This research advances the development of photoelectrode materials for light-driven BPESs and enriches antibiotics degradation mechanism.
研究领域:
环境科学
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微生物学
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材料科学
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DOI
高影响因子
LANGMUIR
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2024
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IF 3.7
Hao Chen,Fanyu Meng,Xiao Feng,Yunhong Zhao,Tengfeng Xie,Dejun Wang,Yanhong Lin
In this work, cobalt-doped oxygen-vacancies-rich BiVO4 (Co/BiVO4-Vo) was successfully synthesized for the degradation of tetracycline (TC) by activated peroxymonosulfate (PMS) under visible light. The morphologies, microstructures, and optical properties of the photocatalysts were analyzed in detail. Co/BiVO4-Vo exhibited significantly enhanced degradation, removing 92.3% of TC within 10 min, which was greater than those of pure BiVO4 (62.2%) and oxygen-vacancies-rich BiVO4 (BiVO4-Vo) (72.0%), respectively. The photogenerated charge separation and transport properties were explored through surface photovoltage (SPV), photoluminescence spectrum (PL), and UV–vis diffuse reflectance spectroscopy (UV–vis DRS) measurements. Additionally, an in-depth investigation was conducted on the photocatalytically assisted advanced oxidation processes based on SO4•– (SR-AOPs) for the degradation of organic pollutants. The experimental results showed that the introduction of oxygen vacancies and Co doping achieved an effective separation of photogenerated carriers, which could accelerate the cycling between Co3+ and Co2+ and further activate PMS. The results of free radical capture experiments and electron spin resonance (ESR) experiments showed that reactive oxygen species (ROSs) such as 1O2, •O2–, and SO4•– played a dominant role in the removal of pollutants. This work provides a novel insight into the further development of efficient and rapid PMS photoactivators for environmental remediation of water bodies.
研究领域:
环境科学
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材料科学
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光化学
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水处理
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Hao Li,Zhiang Hou,Yao Hu,Jinnan Wang,Aimin Li,Philippe François-Xavier Corvini
Although molecular cocatalysts (MCs) have demonstrated significant application potential for photoelectrochemical (PEC) water splitting, the immobilization and stabilization of them for long-term application remains challenging. Herein, an integrated photoanode (BiVO 4 @NM88B(Fe)/Co 4 O 4 ) is developed by immobilizing Co 4 O 4 cubanes onto NH 2 -MIL-88B(Fe) (NM88B(Fe)) decorated BiVO 4 via site-isolation strategy. The unoccupied coordination sites in NM88B(Fe) covalently bound to both Co 4 O 4 and BiVO 4 , which significantly decreases the interfacial charge transfer resistance of BiVO 4 @NM88B(Fe)/Co 4 O 4 and achieve prolonged stability. More importantly, the oxygen evolution cocatalyst (OEC) NM88B(Fe)/Co 4 O 4 remarkably lowered the energy barrier and thermodynamically favored surface water oxidation. Consequently, the photocurrent density of BiVO 4 @NM88B(Fe)/Co 4 O 4 photoanode achieved up to 5.26 mA·cm −2 at 1.23 V RHE , which is 3.73 times higher than that of bare BiVO 4 . This work presents a site-isolation strategy to overcome molecular catalyst stabilization challenges in PEC systems while offering crucial insights into designing efficient charge transfer channels between OECs and semiconductors for enhanced water splitting performance.
研究领域:
材料科学
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光电化学
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可再生能源
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催化
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纳米材料
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2021
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IF 7.312
Guoli Xu,Meiling Du,Tao Li,Yueping Guan,Chen Guo
Nowadays, designing photocatalysts with high activity and recyclability for the degradation of pollutants is still a challenging problem. In this paper, a novel Fe 3 O 4 /BiVO 4 /CdS (FBC) heterojunction photocatalyst was firstly fabricated by simultaneously decorating CdS on the surface of pristine Fe 3 O 4 and BiVO 4 in a low-temperature water bath system. The FBC photocatalyst can enhance the absorption range of visible light and facilitate the separation and transfer of charges. Simultaneously, it can also provide large specific surface area and excellent magnetic response. FBC-3 displayed the highest degradation rate of tetracycline (87.37%) under visible light irradiation. Moreover, the important parameters affecting the photocatalytic activity were investigated to simulate the degradation of TC in real aqueous system. More importantly, the synthesized magnetic photocatalyst exhibited good universal applicability, stability and reusability. The Z-scheme transfer pathway for improving photocatalytic performance was also proposed based on the results of radical trapping experiments, electron spin resonance (ESR) measurement, optical and photoelectrochemical analysis.
研究领域:
材料科学
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环境科学
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纳米技术
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光催化
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DOI
高影响因子
JOURNAL OF CATALYSIS
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2025
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IF 6.5
Huoshuai Huang,Zhidong Wei,Qianxiang Su,Chen Wang,Linlin Ma,Mingxia Chen,Zhi Jiang,Yangzhou Sun,Wenfeng Shangguan
One-step excitation photocatalytic overall water splitting (OWS) is an important reaction for clean energy conversion, but the efficiency is limited by the severe bulk-phase photocarrier recombination. To address this challenge, aluminum loaded tetragonal zircon BiVO 4 -based solid solution, Bi 0.5 Y 0.5 VO 4 , materials (xat%Al-BYV) were successfully prepared in this study. Photocatalytic experiments showed that the optimized xat%Al-BYV exhibited a 11-fold enhancement in OWS performance compared to the pristine BYV. Structural characterizations confirmed that Al existed in the form of γ-Al 2 O 3 and induced distortions of the VO 4 microstructure in the xat%Al-BYV via AlO 4 , which enhanced the material polarization that facilitated the separation of bulk-phase photocarrier. Photoelectrochemical tests and transient absorption spectroscopy (TAS) confirmed the optimized carrier dynamics, and TAS further elucidated the mechanism by which interfacial γ-Al 2 O 3 extracted photogenerated holes to inhibit photocarrier recombination. This work revealed the mechanism of Al loading to optimized BYV bulk-phase carrier dynamics via the synergistic effect of microstructure distortion-carrier extraction, and provided an insight for the design of other one-step excitation semiconductor materials in the future.
研究领域:
材料科学
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光催化
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固态化学
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能量转换
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产品关联
DOI
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2018
·Vol. 32
·期 4
·e4285
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IF 3.581
Zhiquan Yang,Jie Ding,Jinna Feng,Chong He,Ying Li,Xiaowen Tong,Xiaojun Niu,Hongguo Zhang
Because of their desired features, including very specific surface areas and designable framework architecture together with their possibility to be functionalized, Metal Framework (MOF) is a promising platform for supporting varied materials in respect of catalytic applications in water treatment. In this work, a novel visible-light-responsive photocatalyst that comprised BiVO 4 together with MIL-125(Ti), was synthesized by a two-step hydrothermal approach. The characterization of as-obtained samples as performed by X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, Fourier transform infrared spectroscope, X-ray photoelectron spectroscopy and ultraviolet-visible diffuse reflection spectra. Rhodamine B was selected being a target for the evaluation of the photocatalytic function of as-developed photocatalyst. The photocatalytic reaction parameters, for example, the content of BiVO 4 as well as initial concentration of Rhodamine B was researched. The composite photocatalyst possessing Bi:Ti molar ratio of 3:2 brought to light the fact that the greatest photocatalytic activity had the ability to degrade 92% of Rhodamine B in 180 min. In addition to that, the BiVO 4 /MIL-125(Ti) composite could keep its photocatalytic activity during the recycling test. The phenomenon of disintegration of the photo-generated charges in the BiVO 4 /MIL-125(Ti) composite was brought to discussion as well.
研究领域:
材料科学
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环境科学
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催化
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水处理
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）