Catalysts
·
2023
·Vol. 13
·期 11
·1398
·
IF 3.9
Wei Qian,Yi Fang,Hui Liu,Yili Deng,Yingying Li,Yongzheng Zhang,Zenghui Diao,Mingyu Li
The environmental pollution caused by antibiotics is becoming more serious. In this study, the Mn/BiPO4/g-C3N4composite (Mn-BPC) and the Ti/g-C3N4/BiPO4composite (Ti-BPC) were prepared by hydrothermal reaction method and solvent method, respectively, and applied to the degradation of tetracycline (TC) in an aqueous environment. The XRD and HRTEM results showed that these materials had the crystalline rod-like structure of BiPO4and abundant carbon, nitrogen and carbon–oxygen surface functional groups. The degradation of TC by Ti-BPC and Mn-BPC were nearly 92% and 79%, respectively. The degradation processes of TC were well consistent with the pseudo-second-order kinetics model and R2values were closer to 1. The trapping experiment showed that electron holes (h+) were the main reactive species for the degradation of tetracycline, OH· and O2−also have certain effects. Also, the possible photocatalytic degradation mechanism of Ti-BPC and Mn-BPC composites was thereby proposed. TC was firstly adsorbed on the surface of catalysts, and subsequently degraded by reactive species such as h+, OH· and O2−generated under visible light excitation. This study shows that the Ti-BPC and Mn-BPC photocatalysts have great potential in antibiotic degradation and can provide new ideas for antibiotic removal in aqueous environments.Keywords:bismuth phosphate;graphite phase carbon nitride;tetracycline (TC)
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2024
·
IF 2.6
Wu JiaHui,Li Li,Zhai Liying,Zhang Zuxing
BiOI/BiPO 4 photoelectrode was prepared by a two-step electrodeposition method, and the BiOI/BiPO 4 composite material was first applied to the glucose photoelectrochemical (PEC) monitoring platform. The photoelectrodes were characterized by scanning electron microscopy, X-ray diffraction, UV–vis diffuse reflectance spectrophotometer, and photoelectrochemical measurement. The UV–vis diffuse reflectance spectra showed that the BiOI/BiPO 4 nanocomposites had a strong absorption in the visible region. The BiOI/BiPO 4 electrode showed a linear response in the concentration range of 0.1 μM to 10 mM for glucose with a sensitivity of 0.157 μA mM −1 cm −2 , and the detection limit was 0.0499 μM. In addition, the designed BiOI/BiPO 4 PEC sensor has good reproducibility, long-term stability, and selectivity.
研究领域:
生物传感器
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材料科学
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分析化学
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产品关联
DOI
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2024
·Vol. 38
·期 7
·e7542
·
IF 3.7
Zhiwei Liu,Liying Wang,Shanghai Dong,Lu Li,Jingjing Wang,Zhenzhu Cao,Yongfeng Zhang,Lin Cheng,Jucai Yang
Three distinct morphologies of Bi-MOFs were innovatively employed as carriers, facilitating the formation of heterojunctions with BiPO 4 . Among these, the optimal photocatalytic performance was demonstrated by the type II heterojunction BiPO 4 /CAU-17. Bi 3+ competitively coordinated to crucially aid CAU-17's transformation into a heterojunction, enhancing interfacial contact in BiPO4/CAU-17. These photocatalysts effectively degraded dyes (RhB, MO, MB) and tetracycline (TC) under light exposure. RhB degradation was 3.33 times faster with BiPO 4 /CAU-17 than BiPO 4 , 1.45 times faster than FCAU-17, 1.36 times faster than FRCAU-17, and 1.32 times faster than CAU-17. Analyzing carrier density, Fermi level, and band structure through VB-XPS, UV–VIS, and Mott–Schottky provided insights into enhanced separation of photoexcited electron–hole pairs. This study presents a novel approach to tackle the aggregation challenge of the wide-bandgap material BiPO 4 by using suitable MOFs as carriers. It offers valuable perspectives for the design and application of photocatalysts in environmental remediation.
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
OPTICAL MATERIALS
·
2022
·
IF 3.754
Fan Yang,Xiaojiao Yu,Zongbin Liu,Kai Wang,Yuduo Liang,Juan Qiu,Ting Zhang,Jinfen Niu,Jie Zhao,Binghua Yao
BiPO 4 with a prismatic morphology is successfully prepared using a hydrothermal method . The phase of the as-prepared BiPO 4 is a monazite monoclinic phase. The pH of the zero point of charge is approximately 5 for the BiPO 4 . The effects of the catalyst dosage, initial concentration of moxifloxacin, and initial pH of the moxifloxacin solution on the photocatalytic degradation of moxifloxacin over the as-prepared BiPO 4 are first studied. In addition, cations such as K + , Zn 2+ , and Al 3+ and anions such as CO 3 2− , HPO 4 2− , SO 4 2− , F − , and Cl − are introduced into the photocatalytic system to investigate their effects. Furthermore, through reactive species trapping, it is proven that ⋅O 2 − can be converted to ⋅OH and N 2 can be reduced to NH 3 in acidic solution. This work provides an essential study of BiPO 4 for its application in photocatalytic fields.
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
DALTON TRANSACTIONS
·
2013
·Vol. 42
·期 34
·12101-12108
·
IF 3.806
Zhuo Wang,Jing Feng,Min Pang,Shunhao Pan,Hongjie Zhang
In this paper, uniform rice-shaped lanthanide doped BiPO4 upconversion submicron particles have been successfully synthesized via a facile room-temperature co-precipitation reaction and subsequent calcination route. The morphology, phase transformation and upconversion luminescent properties of synthesized submicron particles (SMPs) were characterized by using different analytical techniques such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetry-differential scanning calorimetry (TG-DSC) and upconversion luminescence (UCL) spectra. The transformation from hexagonal phase to monoclinic phase is crucial for upconversion luminescent properties due to the loss of water molecules in the lattice of hexagonal phase. With different variety and concentration of the dopant Ln3+ (Ln = Yb, Er, Tm and Ho) ions, the obtained samples present bright green, blue, and red upconversion emissions under a 980 nm continual wave laser diode excitation. Multicolor and bright white upconversion emissions have also been obtained by precisely adjusting the dopants concentration in the host lattice.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Qian Fu,Chenxi Wang,Jia Chen,Yilin Wang,Chunyan Li,Yixi Xie,Pengcheng Zhao,Junjie Fei
Dopamine is an important neurotransmitter that has a crucial impact on the physiological health of the human body. Consequently, it is necessary to establish a highly selective and sensitive method for the determination of dopamine levels in serum. In this work, g-C 3 N 4 and BiPO 4 /BiOCl (BPCl) were used as optoelectronic materials to construct a novel dopamine photoelectrochemical sensor. Moreover, the optoelectronic materials were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, UV-Vis diffuse reflectance spectroscopy and steady-state fluorescence spectroscopy . Meanwhile, the photoelectrochemical performance of the modified electrodes with different materials was investigated, and the results showed that BPCl/C 3 N 4 /GCE has excellent photoelectrochemical performance. Concomitantly, the dopamine photoelectrochemical sensor also has a wide detection range (0.05–10 μM) and limit of detection (LOD = 0.023 μM). Furthermore, it has good reproducibility, selectivity and stability, which can be used in the actual sample detection of serum.
研究领域:
生物医学工程
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分析化学
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产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2018
·
IF 11.698
Xiuzhen Zheng,Jinghui Wang,Jianjun Liu,Ziqun Wang,Shifu Chen,Xianliang Fu
Wide–band–gap BiPO 4 (BPO) is a promising candidate for photocatalytic degradation of highly stable benzene exhaust. To reveal the effect of the morphology and the oxygen vacancies of BPO on the degradation of benzene, a series of monoclinic BPO samples with the common reported rod– (BPO–R), sheet– (BPO–S), urchin– (BPO–U), and dendrite–like (BPO–D) morphology were synthesized and some oxygen vacancies were introduced in BPO–D. The samples were then used for photocatalytic degradation of gaseous benzene and the mineralization rate of benzene over the samples decreased in order BPO–D (258.6)> BPO–S (48.0)> BPO–U (21.0)> BPO–R (7.3 μmol h –1 m –2 ). BPO–D with a dendritic morphology showed the highest activity. The highly energetic (002), (012), and (031) facets and the oxygen vacancies make great contributions to the high performance of BPO–D, which favor the absorption of BPO–D in long–wavelength range, the adsorption of reactants, the formation of O 2 –· and eventually the interfacial degradation of benzene. The ESR and scavengers tests indicated that O 2 –· and the photogenerated holes are the main active species responsible for the degradation of benzene. This work suggests that increasing the proportion of high–energy crystal facets and introduction of oxygen vacancies are effective strategies to improve the photocatalytic performance of BPO.
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
DALTON TRANSACTIONS
·
2018
·Vol. 47
·期 30
·10288-10298
·
IF 4.099
Boyuan Li,Zhenhua Cao,Shixuan Wang,Qiang Wei,Zhurui Shen
Herein, we report a BiVO4 quantum dot (QDs)-decorated BiPO4 nanorods 0D/1D heterojunction via an in situ growth method. It showed enhanced visible-light-driven photocatalytic activity for degrading Rhodamine B (Rh B) compared to its pristine counterparts in composite. The mass ratio of BiVO4/BiPO4 was then varied from 3 wt% to 50 wt% and the optimum value was found to be 30 wt%, showing 8.3-fold and 6.3-fold apparent reaction rates higher than those of pristine BiPO4 and BiVO4, respectively. Moreover, all of the reduced Rh B was transformed into CO2 and H2O during the photocatalysis, thus showing the good mineralization ability (almost 100%) of the composite. Furthermore, the photocatalytic mechanism of the composite was also investigated here by the zeta potential, scavenger experiments, electron paramagnetic resonance (EPR), photoluminescence spectroscopy (PL), transient photocurrent and electrochemical impedance spectroscopy (EIS). Results show that (i) ˙OH was the main reactive species and (ii) BiVO4 could form a heterojunction with BiPO4, thus widening the response range to the visible region and accelerating the charge separation and transfer.
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
International Journal of Environmental Science and Technology
·
2020
·Vol. 17
·期 9
·4061-4074
·
IF 2.54
Liu H.,Li D.,Shao L.,Wu D.,Zhang H.,Yuan J.,Xu F.
In this study, a crack-free PDMS–SiO 2 –BiPO 4 (P/Si/Bi) composite was prepared via a solgel-assisted route by dispersing pre-prepared bismuth oxybromide into a solution that was composed of hydroxyl-terminated polydimethylsiloxane (PDMS–OH), tetraethyl orthosilicate and phosphoric acid. Analysis via the FTIR, XRD, XPS and SEM–EDX techniques demonstrated that the nonisolated BiPO 4 particles with a monoclinic crystal phase were uniformly distributed on the surface of the P/Si/Bi composite, which can provide more active sites and a larger surface area for photocatalysis compared with other materials. The photocatalytic activity of the P/Si/Bi composite loaded with various mass ratios of BiPO 4 (9 wt%, 12 wt%, 18 wt% and 27 wt%) was investigated via the degradation of methylene blue (MB, 10 mg/L) under UV light irradiation. It was found that the P/Si/Bi composite loaded with 18 wt% BiPO 4 realized the highest degradation efficiency of MB, and its corresponding apparent rate constant was approximately 2.2 times that of the PDMS–SiO 2 –TiO 2 composite (loaded with 18 wt% TiO 2 ). The effects of inorganic ions on the degradation of MB were also investigated. The static contact angle and photocatalytic activity of the P/Si/Bi composite changed minimally after five cyclic experiments, thereby demonstrating its remarkable durability in sustainable applications. In addition, the photogenerated reactive species that were responsible for the degradation of MB within the P/Si/Bi composite were identified, and a photocatalytic mechanism was proposed.
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
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Yuting Li,Jiaming Song,Juanjuan Yang,Zhuo Wang,Guoshuai Ban,Huaxiong Gao,Honggang Ye,Feng Teng,Xin Zhao
As a sustainable technology that can be utilized for degrading organic pollutants, photocatalysis becomes more and more important in the environment pollution control. One crucial factor that influences the degradation process is the design of photocatalyst. In this study, we utilized a simple hydrothermal method, liquid exfoliation and mechanical mixture to synthesize a novel S-scheme heterojunction based on BiPO 4 /CdPSe 3 . It was found that the optimal molar ratio BiPO 4 : CdPSe 3 = 2: 1 (noted as B 2 C) gave rise to an efficient removal of rhodamine B up to 97.5 % after 30 min dark reaction and 60 min light exposure. This composite also possesses the degradation capacity for other antibiotics and inorganic pollutant. The capture experiments showed that superoxide radicals played the dominant role in the degradation process. Besides, hydroxyl radicals and holes were also important active species. The high photocatalytic degradation performance of B 2 C could be attributed to the increased specific surface area with more active sites, enhanced light absorption in the visible region, and, more importantly, the special S-scheme heterostructure for high photogenerated charge carrier separation, synergistically improved the photocatalyst degradation efficiency. This work provides a new perspective for designing high-efficient photocatalysts applicable in multiple organic and inorganic pollutants degradation.
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
MOLECULES
·
2025
·Vol. 30
·期 3
·729
·
IF 4.6
Heying Chu,Yong Li,Yuanjie Liu,Xueping Chai,Hongzhou Zhang,Jingchuan Zhang
Bismuth-based materials that adhere to the alloy/dealloy reaction mechanism are regarded as highly promising anode materials for potassium-ion batteries due to their high volume-specific capacity and moderate reaction potentials. However, their commercial viability has been limited by the effects of structural collapse due to volume distortion and impeded electron conduction, resulting in rapid capacity decline. In this work, a carbon-coated nanosized BiPO4rod (BiPO4@C) was designed and fabricated to overcome the aforementioned challenges through the architecture engineering and anionic-tuning strategy. In particular, the nanosized nanorods significantly reduce the volume expansion; the incorporation of the bulk and open-skeleton anion PO43−serves to mitigate the considerable volume distortion and generates the high ionic conductivity product (K3PO4) to ameliorate the poor ionic transport due to the structural deformation. The elaborated BiPO4rods exhibit high specific capacity (310.3 mAh g−1, at 500 mA g−1), excellent cycling stability (over 700 cycles at 500 mA g−1) and superior rate performance (137.8 mAh g−1, at 1000 mA g−1). Systematic ex-situ XRD and TEM, as well as kinetic tests, have revealed the “conversion-multistep alloying” reaction process and the “battery-capacitance dual-mode” potassium storage mechanism. Moreover, the thick electrodes showed excellent specific capacity and rate performance, demonstrating their significant application potential in the next generation of SIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
·
2023
·Vol. 70
·期 9
·1784-1795
·
IF 1.8
Hong-jian Zhao,Yan Zhou,Ren-Jang Wu,Zhe Yu,Zhi-qiang Wu,Xu Li,Zheng-bing Han
Objective A highly active and stable composite photocatalyst which can be used in practical environmental remediation was developed. Methods g-C 3 N 4 /SnO 2 /BiPO 4 ternary composites (CN/SO/BPO) were synthesised via simple impregnation, and their texture structure, morphology, and surface composition were deeply characterized. Results In just 25 min under visible-light radiation, CN/SO/BPO almost eliminated rhodamine B, and the observed rate constant for the reaction was almost 36 and 3 times higher in comparison to that of CN/BPO and SO/BPO, respectively. Conclusions On the basis of experimental outcomes and DFT calculation, the direct Z-type structure of CN/SO/BPO lead to the improved photogenerated charge separation efficiency, as confirmed by surface photovoltage spectroscopy, electrochemical impedance spectroscopy, and transient photocurrent responses.
研究领域:
环境科学
·
材料科学
✓ 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）