Journal of Water Process Engineering
·
2025
·
IF 6.7
Zhiwei Zhou,Junyan Chen,Haikuan Yu,Yuantian Zhao,Xing Li,Jiawei Ren
Secondary effluent organic matter (EfOM) significantly contributes to membrane fouling in ultrafiltration (UF) systems, which limits their broader use in municipal wastewater recycle. A modified ceramic ultrafiltration membrane (MCUM) was synthesized via vacuum filtration and thermal treatment and then activated under ultraviolet (UV) irradiation. The results indicated that the MCUM-2.88 exhibited the most excellent removal of EfOM, effectively retained high molecular weight (MW) proteinaceous substances, and converted medium MW humic-like compounds into lower MW derivatives. Through parallel factor analysis in conjunction with the self-organizing map algorithm, it was observed that the MCUM primarily degraded aromatic, high MW fluorescent components, while tryptophan-like substances remained as dominant residues due to their resistance to photodegradation. Additionally, the improved surface roughness and hydrophilicity of the MCUM facilitated fouling mitigation by strengthening interfacial repulsion, which diminished foulant adhesion. The fouling mechanism transitioned from complete and intermediate blocking to predominantly intermediate blocking, accompanied by a reduction in gel layer fouling. Consequently, the reversible fouling resistance of the MCUM was reduced by 76.8 %, and the irreversible resistance by 34.3 %, markedly enhancing antifouling performance. The results underscore the effectiveness of MCUM in advanced municipal wastewater treatment, showcasing enhanced antifouling performance and strong potential for sustainable water reuse applications.
研究领域:
环境工程
·
膜科学
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水处理
·
催化
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2018
·
IF 4.841
Siyi Li,Meng Zhang,Xue Ma,Jing Qiao,Hongbo Zhang,Jun Wang,Youtao Song
In this work, an ortho-symmetric double (OSD) Z-scheme SnO 2 \CdSe/Bi 2 O 3 sonocatalyst is skillfully designed and synthesized via ultrasonic-assisted isoelectric point method and then the sonocatalytic activity is studied under ultrasonic irradiation in the degradation of organic contaminants. The effects of ultrasonic irradiation time, sonocatalyst dosage, initial Rhodamine B concentration, organic dye kind and used times are investigated systemically. The formation of OH and h + are confirmed by using t-BuOH and oxalate, respectively. The Rhodamine B can completely be degraded under given experimental conditions such as 10 mg/L Rhodamine B solution, 1.00 g/L OSD Z-scheme SnO 2 \CdSe/Bi 2 O 3 dosage and 150 min ultrasonic process. The formation of mainly intermediate products is studied by Liquid Chromatography–Mass Spectrometry. Moreover, the sonocatalytic reaction mechanism caused by OSD Z-scheme SnO 2 \CdSe/Bi 2 O 3 is presented.
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
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Yilin Wang,Xi Tang,Zixia Zhao,Zhifang Liu,Caiyu Ge,Kunxiang Deng,Yixi Xie,Pengcheng Zhao,Junjie Fei
Tert -Butylhydroquinone (TBHQ) is a phenolic antioxidant commonly found in edible oils. However, excessive amounts of TBHQ can adversely affect food quality due to its toxic and mutagenic effects, which may cause human injury and present carcinogenic risks. Thus, there is an urgent need to develop a sensitive and accurate analytical method for the rapid detection of TBHQ. In this work, hierarchical flower-structured spherical SnIn 4 S 8 and pyramidal Bi 2 O 3 were combined to obtain the Z-scheme SnIn 4 S 8 /Bi 2 O 3 heterojunction. Under irradiation, the electron transport channel of this heterojunction facilitated the combination of electrons in the conduction band of Bi 2 O 3 with holes in the valence band of SnIn 4 S 8 , which decreased the recombination rate of photogenerated electrons and improved the photoelectric response. After the addition of TBHQ, the adsorption effect on the electrode surface and the oxidation reaction with holes in the valence band of Bi 2 O 3 further promoted the charge transfer and separation of photogenerated electrons and holes, which led to a rapid increase in the photocurrent to realize the detection of TBHQ in environmental and food samples. The increase in photocurrent has been linearly correlated with the logarithm of the concentration of TBHQ in the range of 1.00–500 μM with a limit of detection of 0.526 μM. Furthermore, the sensor showed excellent selectivity in the presence of a wide range of analogs. This study provides a novel scheme for the precise detection of TBHQ and the construction of high-performance photoelectrochemical Z-scheme heterojunctions.
研究领域:
分析化学
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食品科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Man Tian,Hujun Cao,Laijun Liu,Jungu Xu
In this work, a series of multiple lanthanide and tungsten co-doped fluorite structured (Bi 2 O 3 ) 0.95- x (Ho 0.4 Er 0.4 Tm 0.4 Yb 0.4 Lu 0.4 O 3 ) x (WO 3 ) 0.05 ( x = 0.1, 0.2, 0.3, 0.4) and (Bi 2 O 3 ) 0.26 (Ho 0.5 Er 0.5 Tm 0.5 Yb 0.5 O 3 ) 0.48 (WO 3 ) 0.26 materials were prepared by traditional solid-state reaction method. The phases, stabilities, and electrical properties of these materials were thoroughly studied. The results revealed that under high oxygen partial pressure, CO 2 , or inert atmospheres, all these samples had excellent long term thermal stability and chemical stability, and the samples of (Bi 2 O 3 ) 0.95- x (Ho 0.4 Er 0.4 Tm 0.4 Yb 0.4 Lu 0.4 O 3 ) x (WO 3 ) 0.05 ( x = 0.1, 0.2, 0.3, 0.4) with low or mediate configuration entropies showed pure and high oxide ion conductivities, e.g. ∼2.6 × 10 −2 S/cm at 600 °C for the sample x = 0.2. Whereas, for the (Bi 2 O 3 ) 0.26 (Ho 0.5 Er 0.5 Tm 0.5 Yb 0.5 O 3 ) 0.48 (WO 3 ) 0.26 sample with high configuration entropy, pure ionic conduction occurred only within a narrow temperature range (700−750 °C) under the N 2 atmosphere. Under strong reducing condition, only the high-entropy sample (Bi 2 O 3 ) 0.26 (Ho 0.5 Er 0.5 Tm 0.5 Yb 0.5 O 3 ) 0.48 (WO 3 ) 0.26 showed high phase and chemical stabilities, but would introduce strong electronic conduction rise from the reduction of the high content W 6+ . While for (Bi 2 O 3 ) 0.95- x (Ho 0.4 Er 0.4 Tm 0.4 Yb 0.4 Lu 0.4 O 3 ) x (WO 3 ) 0.05 with low or mediate configuration, phase decompositions with impurities of Bi metal and HoH 2 were observed under strong reducing atmosphere, accompany with obviously decreased conductivities. Therefore, we provided here a comprehensive understanding for the multiple components doped Bi 2 O 3 -based materials with configuration entropy from low to high on their phases, stabilities, and electrical properties, and suggested a new strategy for designing and stabilizing bismuth-oxide-based materials.
研究领域:
材料科学
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固体化学
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电化学
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 32
·14522-14531
·
IF 3.591
Liruhua Zhang,Qianhong Shen,SuHua Zheng,LiXin Yu,Feilong Huang,Changteng Zhang,Jiansong Sheng,Hui Yang
A novel Z-scheme mixed-crystal Bi2O3/g-C3N4 composite photocatalyst was successfully prepared by a simple electrospinning–calcination approach. The micromorphology, configuration, chemical interaction and optical properties of the synthesized composite photocatalyst were analyzed and the photocatalytic degradation efficiency was estimated by the photodegradation of antibiotics. The results show that Bi2O3 nanofibers existing as α and β mixed-crystal phases are prepared and mixed with g-C3N4 nanosheets, thus forming a highly efficient α-Bi2O3/β-Bi2O3/g-C3N4 homoheterojunction. Transfer of the photogenerated electrons and holes in the fabricated α-Bi2O3/β-Bi2O3/g-C3N4 homoheterojunction follows a Z-scheme enhanced photocatalytic mechanism, resulting in the effective separation and transfer of photogenerated e− and h+. Moreover, the mixed-crystal Bi2O3/g-C3N4 photocatalyst has an enhanced visible-light absorbance. Therefore, the Bi2O3/g-C3N4 composite displays high photocatalytic properties for degrading tetracycline hydrochloride under 5 W LED visible-light irradiation, and the high photocatalytic activity is maintained even after 5 cycles, indicating the outstanding stability and reusability of the composite photocatalyst.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2025
·
IF 6.6
Xiangjie Duan,Jie Zhao,Shuaida Song,Na Zhou,Jizhuang Fan,Bo Tian,Yunchen Du
The development of non-toxic and flexible polymer-based shielding composites has become a research hotspot due to the severe harm of γ ray to living organisms, mechanical equipment, and environment. However, the γ-ray shielding performance of polymer-based composites in high-energy range remains unsatisfactory. Herein, FLUKA Monte Carlo simulations capable of visualizing γ-photon transport behaviors are investigated in Bi 2 O 3 /PP and WO 3 /PP multi-layer composites with various layered configurations. The simulation results reveal significant anisotropic attenuation effects on shielding characteristics caused by layered configurations and incident path of γ-photons relative to the interface position. Subsequently, single-layer, AB, and sandwich-like ABA composites with a fixed thickness of 2.0 mm are experimentally fabricated via melt-mixing and hot press methods. At 1332 keV, sandwich-like WPPBPPWPP composite (WO 3 /PP outer layers + Bi 2 O 3 /PP core) achieves linear attenuation coefficients and radiation protection efficiency of 0.31 cm −1 and 6 %, respectively, which are 29 % higher than those of single-layer composite. These improvements originate from multiple scattering induced by interlayer interface. Additionally, layered configurations with externally placed high-density fillers (WO 3 ) and internally placed high atomic number fillers (Bi 2 O 3 ) further promote γ-photon attenuation in high-energy range. Experimental results validate the anisotropic shielding trends observed in MC simulations. Moreover, multi-layer composites demonstrate significantly improved energy storage capacity, thermal stability, and oxidation resistance while maintaining comparable to those of single-layer composites. This work provides a scalable strategy for developing non-toxic and flexible shielding materials applicable in nuclear protection, medical devices, and aerospace systems, where lightweight and efficient radiation attenuation are critical.
研究领域:
材料科学
·
核工程
·
辐射防护
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Meixin Li,Zongbo Song,Shanshan Li,Mati Ullah Khan,Yongzhi Wang,Yunsi Xu,Shun Wang,Ling Kong,Zhiwei Chen,Feng Sang
Patulin (PAT), a potent mycotoxin commonly found in fruit and vegetable products, represents a critical threat to food safety and public health. Its cytotoxicity arises from the disruption of intracellular signaling pathways and oxidative balance, leading to gastrointestinal impairment, immune suppression, and systemic toxicity. To mitigate these risks, we present a label-free photoelectrochemical (PEC) aptasensor for ultrasensitive PAT detection, employing an in situ-synthesized Ag 2 S quantum dot (QD)-sensitized BiOI/Bi 2 O 3 heterojunction. The BiOI/Bi 2 O 3 heterostructure enhanced charge carrier separation, while the in situ-anchored Ag 2 S QDs functioned as effective photosensitizers, significantly amplifying the PEC response. Integrated with a PAT-specific aptamer, the sensor demonstrated selective target recognition, achieving a linear detection range from 0.001 to 100 ng/mL and a remarkably low detection limit of 0.56 pg/mL. The aptasensor exhibited high selectivity against structurally similar mycotoxins, excellent stability (94.2% signal retention through 15 on/off light irradiation cycles). Successful PAT quantification in spiked apple juice samples confirmed its practicality for real-world applications. This study establishes a sensitive, cost-effective, and reliable analytical tool for monitoring mycotoxins in food safety protocols.
研究领域:
食品安全
·
分析化学
·
纳米技术
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生物传感器
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毒理学
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光电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Chaogang Ban,Yang Wang,Jiangping Ma,Yajie Feng,Junjie Ding,Youyu Duan,Xue Liu,Bin Zhang,Jinjing Tang,Xiaoping Tao,Liyong Gan,Shuangshuang Tan,Xiaoyuan Zhou
Rational fabricating advanced photocatalysts to recycle CO 2 into solar fuel is one of the most promising approaches to simultaneously address energy shortages and global warming. TiO 2 has been widely used in photocatalytic CO 2 reduction due to its abundant reserves, non-toxicity and harmlessness etc. However, it remains significantly challenging for practical applications due to the fast electron-hole recombination. Herein, we design a direct TiO 2 based Z-Scheme heterojunction by self-assembly of C-doped TiO 2 nanoparticles on 3D hierarchical petal of flower-like β-Bi 2 O 3 (C-TiO 2 /β-Bi 2 O 3 ). In situ electron paramagnetic resonance tests, in situ X-ray photoelectron spectroscopy and theoretical calculations reveal that electrons are transferred from β-Bi 2 O 3 to C-TiO 2 due to the formation of Z-Scheme heterojunction, which greatly accelerates the separation of photogenerated carriers to promote efficient CO 2 photoreduction. Ultimately, the optimal heterojunction shows significantly enhanced photocatalytic activity for CO 2 reduction to CO (31.07 μmol g –1 h −1 ) compared to the pure TiO 2 (3.28 μmol g –1 h −1 ) without using any photosensitizers and sacrificial agents. This work provides a unique insight to design direct Z-Scheme heterojunctions and delivers a promising photocatalyst for overcoming global warming and energy-supply issues.
研究领域:
材料科学
·
环境科学
·
化学工程
·
光催化
✓ 已验证
DOI
高影响因子
MATERIALS & DESIGN
·
2024
·
IF 7.6
Baolong Shi,Bingyu Chen,Xinzhe Yan,Huyue Cao,Hao Sun,Dalei Wang,Changwei Bi,Chao Wang,Yueyue Wang,Chaoqing Dai,Wei Liu
The overuse of tetracycline, a broad-spectrum antibiotic, has posed a severe threat to both the ecological environment and public safety. This paper presents the one-step synthesis of Bi 2 O 2 S/Bi 2 O 3 heterojunctions utilizing a simple and environmentally friendly chemical synthesis method. These heterojunctions were subsequently employed in the fabrication of photoelectrochemical sensors tailored for tetracycline detection. Under optimal conditions, with a bias voltage of 0 V, the sensor manifests exceptional self-powered capability, yielding a photocurrent density of approximately 270nA/cm 2 . The detection sensitivity for tetracycline spans a wide linear range from 0.1 pM to 200 nM, accompanied by a remarkably low detection limit of 0.5 pM (S/N = 3). Furthermore, the photoelectrochemical sensor demonstrates commendable stability, rapid response characteristics, high selectivity, and consistent detection reproducibility. These findings not only offer a novel opportunity for advancing photoelectrochemical sensors but also present a fresh perspective in the realm of photoelectrochemical sensor development.
研究领域:
分析化学
·
环境科学
·
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
Materials
·
2025
·Vol. 18
·期 15
·3528
·
IF 3.2
Lai Liu,Huizhen Yao
Photoelectrochemical devices have garnered extensive research attention in the field of smart and multifunctional photoelectronics, owing to their lightweight nature, eco-friendliness, and cost-effective manufacturing processes. In this work, Bi2S3/Bi2O3/TiO2heterojunction film was successfully fabricated and functioned as the photoelectrode of photoelectrochemical devices. The designed Bi2S3/Bi2O3/TiO2photoelectrochemical photodetector possesses a broad light detection spectrum ranging from 400 to 900 nm and impressive self-powered characteristics. At 0 V bias, the device exhibits an on/off current ratio of approximately 1.3 × 106. It achieves a commendable detectivity of 5.7 × 1013Jones as subjected to a 0.8 V bias potential, outperforming both bare TiO2and Bi2O3/TiO2photoelectrochemical devices. Moreover, the Bi2S3/Bi2O3/TiO2photoelectrode film shows great promise in pollutant decomposition, achieving nearly 97.7% degradation efficiency within 60 min. The appropriate band energy alignment and the presence of an internal electric field at the interface of the Bi2S3/Bi2O3/TiO2film serve as a potent driving force for the separation and transport of photogenerated carriers. These findings suggest that the Bi2S3/Bi2O3/TiO2heterojunction film could be a viable candidate as a photoelectrode material for the development of high-performance photoelectrochemical optoelectronic devices.
研究领域:
光电化学
·
材料科学
·
纳米技术
·
光电子器件
·
环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2018
·
IF 4.61
Limin Hu,Guangshan Zhang,Meng Liu,Qiao Wang,Shuying Dong,Peng Wang
Nickel foam (NF)-functionalized Co 3 O 4 -Bi 2 O 3 nanoparticles (CBO@NF) synthesized using a facile one-step microwave-assistant method were employed as catalysts to activate peroxymonosulfate (PMS) with bisphenol A (BPA) as the target pollutant. The crystallinity , morphology, and chemical valence state of the synthesized CBO@NF were analyzed using XRD, SEM , and XPS, respectively. Moreover, effects of the preparation parameters, including the calcination temperature and calcination time as well as the loading dosage, were evaluated in detail. A degradation efficiency of 95.6% was achieved within 30 min with the optimal degradation system. The CBO@NF/PMS system shows great catalytic activity in a pH range from 3.0 to 11.0. The stability and reusability of the CBO@NF supported catalyst was evaluated through a recycling experiment. In addition, the possible degradation mechanism was also explored using a quenching experiment and electron paramagnetic resonance (EPR) detection. The result shows that both the surface-bound SO 4 − and OH play significant roles during the degradation process, where the electron transfer of Co 2+ /Co 3+ , Bi 3+ /Bi 5+ , and Ni 2+ /Ni 3+ realizes the sustained regeneration of the active radicals. This work provides new insight for the practical applications of sulfate radical-based advanced oxidation processes (SR-AOPs) in wastewater treatment .
研究领域:
环境科学
·
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
OPTICAL MATERIALS
·
2020
·
IF 2.779
Dongxun Chen,Fang Wang,Jianqiang Bi,Weili Wang,Lu Wang,Kangning Sun,Dongqi Tang,Yanjie Liang
Bi 2 O 3 nanospheres co-doped with Yb 3+ /Er 3+ upconverting ions pair have been successfully synthesized via a facile hydrothermal method followed by a heat treatment. The resulting Bi 2 O 3 :Yb 3+ ,Er 3+ nanospheres show a monodisperse spherical morphology with narrow size distribution (~180 nm) and display intense upconversion luminescence under 980 nm laser excitation. It is found that the crystal structure, morphology and upconversion luminescence properties of nanospheres have a direct relationship with the doping concentration of Yb 3+ and the subsequent calcination temperature. These Bi 2 O 3 :Yb 3+ ,Er 3+ nanospheres can be prepared in large quantities and can be easily modified with a layer of biocompatible polyethyleneimine (PEI) molecules. The yielded nanospheres could not only maintain uniform size and morphological characteristics, but also show good water dispersibility and biocompatibility. Remarkably, these Bi 2 O 3 :Yb 3+ ,Er 3+ upconversion nanophosphors could also act as an effective contrast agent for X-ray computed tomography (CT) imaging, which show higher contrast efficacy than commercial iodine-based contrast agent. The proposed facile synthetic route and inexpensive matrix materials pave the way for broad use of these Bi 2 O 3 :Yb 3+ ,Er 3+ nanospheres as ideal dual-mode bioimaging probes in biomedical field.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
光学成像
✓ 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）