Materials Science & Engineering C-Materials for Biological Applications
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2019
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IF 4.959
Zhu Mengting,Tonni Agustiono Kurniawan,You Yanping,Ram Avtar,Mohd Hafiz Dzarfan Othman
Bisphenol A (BPA) is a refractory pollutant presents in water body that possesses serious threats to living organisms. To deal with it, we investigate and evaluate the effectiveness of GO@BiOI/Bi 2 WO 6 composite as a novel photocatalyst for BPA removal from aqueous solutions under UV–vis irradiation. To enhance its removal for BPA, the surface of BiOI/Bi 2 WO 6 is modified with graphene oxide (GO). This composite is named as ‘GO@BiOI/Bi 2 WO 6 ’. Changes in its physico-chemical properties after surface modification with GO are characterized by XRD, FTIR, FESEM-EDS, XPS, PL, and BET methods. Optimized conditions of BPA degradation by the composite are determined under identical conditions. Photodegradation pathways of BPA and its removal mechanisms by the same composite are presented. It is obvious that the GO@BiOI/Bi 2 WO 6 has demonstrated its potential as a promising photocatalyst for BPA removal under UV–vis irradiation. About 81% of BPA removal is attained by the GO@BiOI/Bi 2 WO 6 under optimized conditions (10 mg/L of BPA, 0.5 g/L of dose, pH 7 and 5 h of reaction time). The oxidation by-products of BPA degradation include p -hydroquinone or 4-(1-hydroxy-1-methyl-ethyl)-phenol. In spite of its performance, the treated effluents are still unable to meet the maximum discharge limit of <1 mg/L set by national legislation. Therefore, subsequent biological processes are essential to maximize its biodegradation in the wastewater samples before their discharge into waterbody.
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高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
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2019
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IF 2.29
Wentian Li,Hu Lin,Nan Song,Gaoquan Chen,Xinbao Li,Hongkun Zhao
Solubilities of gimeracil (form P) in aqueous co-solvent mixtures of isopropanol, N,N -dimethylformamide (DMF), ethylene glycol (EG) and dimethylsulfoxide (DMSO) were investigated via the isothermal dissolution equilibrium method at (283.15–328.15) K under ambient pressure p = 101.2 kPa. Experimental solubility was increased with increasing temperature and mass fraction of each co-solvent. The largest solubility was found in neat co-solvents. The solids equilibrated with liquid phase were characterized by X -ray power diffraction, indicating no polymorphic transformation, solvate formation or crystal transition according to the spectral data. The Jouyban-Acree model was adopted to correlate the obtained solubility. The highest RAD and RMSD values were, respectively, 2.61 × 10 −2 and 14.96 × 10 −4 . Quantitative values for the local mole fraction of DMF (EG, DMSO or isopropanol) and water around gimeracil (form P) were acquired by using the Inverse Kirkwood–Buff integrals method. The preferential solvation parameters for isopropanol were positive in the isopropanol mixtures in intermediate and isopropanol-rich compositions, which indicated that gimeracil (form P) was preferentially solvated by isopropanol. Gimeracil (form P) could act mainly as a Lewis acid interacting with proton-acceptor functional group of isopropanol. Within the same region, gimeracil (form P) was not preferentially solvated by DMF, EG and DMSO. Furthermore, the method of linear solvation energy relationships was performed with a suitable combination of solvent polarity descriptors to explain the nature of intermolecular interactions resulting in the solubility variation in the co-solvent mixtures.
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PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
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2013
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IF 2.111
Wang Hongchun,Li Jun,Lv Bo,Lou Yuanlai,Dong Liyao
Herbicide resistance or tolerance in weeds mediated by cytochrome P450 monooxygenase is a considerable problem. However, cytochrome P450 mediated resistance or tolerance in weeds was less studied. Thus, in this work, the role of the cytochrome P450 monooxygenase in the different responses of Poa annua and Alopecurus aequalis to fenoxaprop-P-ethyl was studied. We found that the effect of fenoxaprop-P-ethyl could be synergized by piperonyl butoxide (PBO) in P. annua , but not by malathion. After being treated with fenoxaprop-P-ethyl (containing mefenpyr-diethyl), the contents of cytochrome P450 and cytochrome b 5 in P. annua increased significantly compared to plants treated with mefenpyr-diethyl only or untreated plants. However, the increase was less in A. aequalis , which was susceptible to fenoxaprop-P-ethyl. The activities of ρ-nitroanisole O-demethylase (PNOD), ethoxyresorufin O-deethylase (EROD), ethoxycoumarin oxidase (ECOD) and NADPH-dependent cytochrome P450 reductase mediated by cytochrome P450 monooxygenase increased in P. annua after treatment with fenoxaprop-P-ethyl, especially the activities of ECOD and cytochrome P450 reductase. Besides this, cytochrome P450 monooxygenase activity toward fenoxaprop-P-ethyl in P. annua increased significantly compared to untreated or treated with mefenpyr-diethyl plants and treated or untreated A. aequalis . Cytochrome P450 monooxygenase may play an important role in the different responses to fenoxaprop-P-ethyl in P. annua and A. aequalis .
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Li Liu,Qianqian Wei,Yeqing Lan,Cheng Chen
Efficient purification of the wastewater containing organoarsenic by activated peroxymonosulfate (PMS) usually faces with a great challenge because the degradation of organoarsenic is coupled with the release of its byproduct As(V). Heterogeneous catalysts with catalytic and adsorption functions show great potential in activating PMS for the degradation of organoarsenic and the removal of secondary inorganic arsenic. In this study, Co-CeMnO was designed and fabricated to realize simultaneous elimination of p -arsanilic ( p -ASA) and As(V) in Co-CeMnO (0.2 g/L)/PMS (0.25 mM) system, in which 50 µM p -ASA was almost completely degraded within 5 min and approximately 100% of the produced As(V) was removed within 30 min. The rate constant of the pseudo-first-order kinetics for the p -ASA degradation by PMS mediated with Co-CeMnO was high up to 0.65 min −1 , approximately 6.5 times higher than that in the system of CeMnO/PMS. It was revealed that SO 4 •− , • OH and 1 O 2 acted as the main oxidant species responsible for the oxidation of organics and As(III), and the surface −OH of Co-CeMnO led to the adsorption of As(V) via ion exchange. The excellent reusability and stability of Co-CeMnO was verified by five cycles with high removal efficiencies of p -ASA (>92% within 10 min) and arsenic (>98% within 90 min) and low leached metal ion concentrations (Co ions < 0.27 mg/L; Mn ions < 0.15 mg/L; Ce ions ≈ 0). Under the condition of initial pH 5, p -ASA was degraded completely and over 98% of total arsenic was adsorbed in different water matrices, indicating the practical application potential of Co-CeMnO/PMS system. Thus, the present study provided a reliable PMS activation strategy by constructing bifunctional catalysts to achieve satisfactory treatment of the wastewater containing p -ASA.
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2025
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IF 6.1
Zifang Peng,Shijiao Hou,Qingyun He,Fangcheng Su,Lishun Ren,Congcong Pei,Dan Yin,Yanhao Zhang,Yanjie Huang,Shusheng Zhang,Zongwei Cai
p- Phenylenediamine (PPD) antioxidants and their quinone derivatives (PPDQs), as hot-spot novel contaminants in recent years, have been detected in air fine particulate matters (PM 2.5 ) in multiple regions. However, current research all discussed the pollution of PPDs and PPDQs based on the collected PM 2.5 samples at least in one day (23.5 h). In this work, an innovative study was conducted to investigate their precise daily pollution characteristics and health risks based on high-resolution collected PM 2.5 samples every 1.5 hours in one week in Zhengzhou, a megacity continuously suffers from serious air contamination in central China. The composition patterns and sources of PPDs and PPDQs were discovered and more serious contamination of them were both found at the day-time (07:00–19:00). Almost all daily time intervals with relatively high pollution levels of PPDs and PPDQs were commuting time for majority of workers, which was possibly because of increased rubber tire abrasion induced by huge traffic volume. The highest daily adults’ inhalation risks were also found in 11:30–13:00 and 16:00–17:30 for PPDs and PPDQs in PM 2.5 , respectively. Current study builds the relationship between pollution status of such novel pollutants and human activities, and possibly guides people in central China to take precautions to protect themselves from environmental toxicants at special daily time.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Qi Wang,Lanlan Zhang,Yuhong He,Zonghan Hu,Yangfang Liao,Qingping Dai,Bing Lv,Wenzhong Wang
Rational design and construction of semiconductor heterojunction photoelectrode can effectively improve photoelectrochemical (PEC) water splitting for hydrogen evolution . In this study, for the first time, a novel n-type Fe 2 V 4 O 13 (FVO) nanoparticle-modified p-type CuInS 2 (CIS) nanosheet arrays (NSAs) photocathode is designed and constructed for hydrogen evolution through PEC cell . The CIS/FVO NSAs photocathode simultaneously with type II heterojunction and p-n junction was constructed by growing FVO nanoparticles (NPs) on CIS NSAs through a facile successive ionic layer adsorption and reaction (SILAR) as well as annealing method. The designed and constructed CIS/FVO NSAs photocathode exhibited drastically improved PEC water splitting for hydrogen evolution and generated a photocurrent of −4.8 mA/cm 2 , 9.5 times that of pristine CIS NSAs photocathode at −1.0 V vs. Ag/AgCl. UV–vis absorption spectrum tests demonstrated the outstanding light absorption of CIS/FVO NSAs within the wavelength of 300–800 nm. Electrochemical impedance and photoluminescence measurements evidenced the effective separation of the carriers within the CIS/FVO NSAs. Mott-Schottky tests confirmed the establishment of type II heterojunction between the interface of p-type CIS and n-type FVO. The experimental tests revealed that the enhanced PEC water splitting performance of the CIS/FVO NSAs photocathode is attributed to the outstanding light absorption and the effective charge carrier separation achieved by type II heterojunction and p-n junction. This work provides a new strategy to design and construct CIS-based photocathode for highly efficient PEC water splitting hydrogen evolution.
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FUEL
·
2024
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IF 6.7
Guosheng Li,Yu Ding,Xiaohan Li,Kunhong Li,Xinrui Yin,Liang Zhao,Shenyong Ren,Chunming Xu,Baojian Shen
Regulation of electronic structure of metal active phase for catalysts has been known as efficient in promoting its catalytic activity; however, manipulating the activity of catalysts via controllable metal active phase electronic structure is still challenging. A non-equilibrium electronic structure Fe-based bulk catalyst has been developed via controllably adding P species, where the non-equilibrium electronic structure of Fe species is formed through the electron transfer from the Zn species through the P electronic channel. As a result, the catalytic activity of the modified Fe-based bulk catalysts has increased by 24.4–50.4%. Meanwhile, the sulfurization degree (SD) of the modified Fe-based bulk catalysts has increased by 5.6–25.9%. In addition, the HDS reaction rate constant ( k HDS ) has increased by about 2.0 times, and the DDS reaction rate constant ( k DDS ) has increased by about 2.4 times. The P modifying can regulate the directional transfer of unpaired free electrons between Fe and Zn species to form a more non-equilibrium electronic structure of Fe species, which can reduce the energy barrier of the C–S bond adsorbed on the P-modified Fe-based bulk catalysts. Importantly, the P species can be used as an active site to adsorb S-containing compounds in the modified Fe-based bulk catalysts, which is conducive to generating more coordinatively unsaturated sites (CUSs). The former can promote the formation of the more non-equilibrium electronic structure of Fe species, and the latter can adjust the adsorption active site of S-containing on the catalyst surface. Therefore, an electron transfer channel is formed among Fe, Zn, and P species, and another one is formed among Fe, P, and S-containing compounds, which form a dual-channel electron transfer behavior. Furthermore, the specific surface area, total pore volume, and reducibility of the modified Fe-based bulk catalysts have also shown varying degrees of improvement via the controllable addition of P species.
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JOURNAL OF CHROMATOGRAPHY A
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2025
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IF 4
Xu Zhang,Xiangbo Ji,Zifang Peng,Yanhao Zhang,Zongwei Cai,Shusheng Zhang
Due to the complicated sample matrix and low concentration, analysis of small-molecule emerging environmental pollutants generally required complex sample preparation and long instrumental detection. It guarantees the sensitivity but is not conducive to rapid screening. In this work, a p -aminoazobenzene ( p -AAB) with excellent energy absorption capability was used to modify multilayer Ti 3 C 2 T X (MXene) to prepare novel material p -AAB/MXene. The modification significantly improved the laser absorption of original material, and made p -AAB/MXene could be employed as matrix for surface-assisted laser desorption/ionization-time of flight-mass spectrometry (SALDI-TOF MS) analysis of small-molecule emerging pollutants. More importantly, p -AAB/MXene could be used as adsorbent to enrich target compounds, then directly sent to SALDI-TOF MS detection without any other sample pre-treatment. Dual characteristics of enrichment material and matrix made p -AAB/MXene-based SALDI-TOF MS method successfully be applied to rapid and accurate detection of emerging environmental pollutants, p -phenylenediamine-quinones (PPDQs) and diamide insecticides (DAIs), in food (beverage) and environmental (PM 2.5 ) samples. High sensitivity (LOD at ng mL -1 level) and satisfactory precision (RSD < 11%) indicated the qualified analytical performance of developed approach. The determined concentrations also elucidated the broad occurrence of PPDQs and DAIs in beverages and PM 2.5 . The results further confirmed the SALDI-TOF MS using p -AAB/MXene as both adsorbent and matrix had considerable potential for efficient and time-saving analysis of trace and ultra-trace small-molecule emerging environmental organic pollutants in complicated samples.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Lei Ding,Dandan Li,Sihang Zhang,Shuo Zhang,Zhaoyang Wang,Fanghui Du,Pengfang Zhang,Feng Yang
Lithium metal batteries (LMBs) attract widespread attention under current high energy density developments. However, wild Li dendrite propagations owing to chaotic Li depositions raise challenges for LMB blossoming. Separators with specific demands thus should be involved when smoothly transferring into LMBs. In this research, a fascinating P(TPC@Lys-Li) separator is prepared by the turbulent interfacial polymerization and electrospinning to ingeniously clarify dependencies of Li + transfer dynamics on double electric layer thickness (DELT) regulations within porous skeletons. P(TPC@Lys-Li) enables negatively charged porous skeleton surface and compresses DELT, which constructs high-efficiency Li + fast-transfer channels on porous skeletons and accelerates Li + transfer speed by 18.3 times. Especially, P(TPC@Lys-Li) supplies extra Li + for stable formations of solid electrolyte interphase (SEI) layer, homogenizing nucleation and growth behaviors during Li depositions. Remarkable C-rate capacity and cycle stability thus arise for assembled LMBs, holding 87.2 % capacity retention after 700 cycles at 0.5C even under high cathode loading and lean electrolyte conditions. P(TPC@Lys-Li) also maintains constant physical scale and unabated mechanical strength even at elevated temperatures approaching 200 °C, which provides excellent battery security as LMBs encounter uncontrollable thermal runaway. Above attractive features enable P(TPC@Lys-Li) separator to be potentially applied in LMBs demanding sufficient security, high-capacity density, and fast charge technology.
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Journal of Cleaner Production
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2024
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IF 9.7
Feifei Wang,Sizhi Xu,Nannan Wang,Toyohisa Fujita,Shunyan Ning,Yuezhou Wei,Xinpeng Wang
A silica-based adsorbent (P507@COF-TpAzo/SiO 2 ) with nitrogen and phosphorus donors was prepared for industrial separation and recovery of Sn(IV) by in-situ growth of covalent organic framework (COF) on a silica substrate combined with vacuum impregnation. The materials were tested and analyzed by the scanning electron microscope (SEM), X-ray diffraction (XRD) and other characterization techniques, which demonstrated that the adsorbent has an enormous specific surface area, excellent heat resistance, and a regular morphological structure. The static experimental results showed that the adsorbent displayed remarkable selectivity for Sn(IV) in high HCl and HNO 3 concentration environments, with excellent kinetics (∼60 min) and outstanding adsorption capacities (60.02 mg/g in 3 M HCl, 92.59 mg/g in 3 M HNO 3 ) in different media at 3 M acidity. Cycle performance testing demonstrated that the adsorbent exhibited excellent stability (cycle times ≥8). Analysis using Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) showed that the synergistic adsorption results of N and P were reflected, mainly by the synergistic complexation of P=O and N=N-C. The potential sites for the adsorption of the adsorbent towards Sn(IV) were predicted by density functional theory (DFT) calculations, and the adsorbent demonstrated a more stable binding energy with Sn(IV). Finally, dynamic separation and efficient enrichment (>210) of Sn(IV) in highly acidic wastewater were realized by designing a penetrating column separation process. P507@COF-TpAzo/SiO 2 satisfied the requirements of the dynamic adsorption experiments, bridging the research gap of dynamic separation, and provides a new strategy for the industrial removal and recovery of Sn(IV), as well as a way for environmental protection and industrial green production.
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ChemistrySelect
·
2025
·Vol. 10
·期 30
·e01615
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IF 2
Bing Wang,Pinliang Lai,Jian Zhang,Guomin Li,Rao Fu,Hui Liu
Graphical The AgPCN+APS photocatalytic system was constructed in situ and its performance in degrading dyes in complex water environments was systematically investigated. It is of vital importance to develop highly efficient photocatalysts capable of removing dyes from actual wastewater environments. In this study, we constructed a in-situ, novel P-doped g-C 3 N 4 /Ag 3 PO 4 Z-scheme heterojunction photocatalyst (AgPCN) to degrade rhodamine B(RhB) in wastewater activated by persulfate (APS). Without the addition of persulfate, the kinetic degradation constant of RhB degraded by AgPCN can reach 0.53619 min −1 . Under the activation with a specific amount of persulfate, the kinetic degradation constant of RhB in the AgPCN + APS photocatalytic system can reach 0.78844 min −1 , which is 1.47 times higher than that of pure AgPCN. This is attributed to the structural defects of AgPCN itself and the energy level transformation caused by doping. Additionally, the activation of APS stimulates the generation of free radicals such as SO 4 · 2− , O 2 · − , and ·OH during the degradation process of AgPCN. It is worth noting that the AgPCN + APS system has a wide pH tolerance, indicating its application potential in complex actual wastewater environments. After three cycles of experiments, it still maintained a degradation efficiency of over 95%. Therefore, the AgPCN + APS system features excellent stability and wide applicability, providing a promising technical approach for the industrial treatment of dye wastewater.
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CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Wangman Yin,Xinman Tu,Xinding Lv,Li Zhang,Tingting Li,Xiaojun Wang,Jianping Zou
The photocatalytic fuel cell (PFC) can treat the increasingly severe pollution from flotation wastewater in the mining industry by simultaneously converting the chemical energy of pollutants into electricity. The inherent thermodynamic and kinetic differences in degradation pathways are crucial for governing pollutant mineralization and electricity generation in the PFC system. However, achieving simultaneous contaminant elimination and maximum energy recovery through rational pathway modulation remains challenging. Herein, oxygen vacancy-enriched heterostructured BiPO 4 /Bi 2 MoO 6 photoanode by B/P co-doping, denoted as BPO/BP-BMO, is constructed via a one-step acid-mediated solvothermal method. The in-situ heterojunction and oxygen vacancies induced by heteroatom doping effectively modulate electronic/band structures, optimize interfacial charge transfer, and enhance electron-hole pair separation efficiency. The optimal BPO/BP-BMO photoanode exhibits enhanced production of singlet oxygen ( 1 O 2 ) under visible-light irradiation, which is critical for regulating the degradation pathways of sodium isopropyl xanthate (SIPX). Experimental and theoretical studies have shown that 1 O 2 preferentially targets the -O-CSS- bond in SIPX, leading to the rapid formation of isopropanol, a compound that mineralizes quickly, while minimizing the buildup of unreactive intermediates such as ROCS₂O − . The isopropanol-oriented degradation pathway endows the BPO/BP-BMO-PFC system with 92 % degradation efficiency within 90 min and a power density of 9.7 μW cm −2 , with the latter being 1.8 times that of the Bi 2 MoO 6 -PFC system. This study demonstrates an advanced photoanode, progressing from rational defect/heterojunction design to degradation pathways regulation, thereby establishing a more effective PFC system for sustainable wastewater-to-energy conversion processes.
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危险品化学品经营许可证（带存储）