CHEMICAL ENGINEERING JOURNAL
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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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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2025
·
IF 4.6
Yi-Xi Chen,Zhenhua Tang,Le-Yan Feng,Liu-Ling Liang,Deng-Hui Shang,Hui-Qing Li,Xiao-Hai Chen,Feng-Ming Li,Xin-Gui Tang,Shang-Xian Chen
Nowadays, heavy metal pollutants have emerged as a significant global environment affecting human health. Herein, in this work, a highly sensitive and selective dual-signal ratiometric fluorescent sensor for heavy metal Pb 2+ ions detection in aquatic environments was developed by employing the combined highly fluorescent nitrogen and sulfur co-doped carbon dots (N,S-CDs) with rhodamine B (RhB) as a new dual-signal fluorescent probe. The nanostructure, optical properties and a self-calibration mechanism based on the intensity ratio of dual emission peaks were discussed, and, the co-doping of nitrogen and sulfur increased the electron transfer rate and enhanced the coordination interaction between the N,S-CDs and Pb 2+ ions were revealed in the dual-signal ratiometric fluorescent sensor. Moreover, the new sensor exhibited a robust linear response to Pb 2+ ions within the 0–180 μM range, achieving a limit of detection (LOD) of 0.45 μM (93 μg/L) in the actual measurement environment, which is observed to be commensurate with the Grade I standard limit for lead as prescribed in China's “Integrated Wastewater Discharge Standard” (100 μg/L). Furthermore, specificity experiments demonstrated the sensor's superior recognition of Pb 2+ ions over other common metal ions (e.g., Cu 2+ , Fe 3+ , Al 3+ ). In practical industrial wastewater analysis, spike recoveries of 94.20–97.53 % were achieved, with relative standard deviations (RSDs) below 1.32 %, thus validating the method's reliability. This work has been recognized to provide significant potential for environmental monitoring applications.
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PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2017
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IF 3.012
Mingdang Li,Ping Wang,Fubin Pei,Haoxuan Yu,Peng Chen,Yunhui Dong,Yueyun Li,Qing Liu,Degang Li
In this work, a highly sensitive sandwich-type electrochemical immunosensor was fabricated by using the gold nanorods (Au NRs) as the substrate material and the mesoporous Au@Pd@Pt core-shell nanospheres (m-Au@Pd@Pt) as the label of the detection antibodies (Ab 2 , Ab 2 label) for detecting Hepatitis B surface antigen (HBs Ag). The Au NRs with excellent conductivity and biocompatibility can accelerate the electron transfer on the electrode interface and enhance the load capacity of capture antibodies (Ab 1 ). The m-Au@Pd@Pt with mesoporous structure can not only provide high specific surface area and abundant catalytically active sites, but also offer great pore accessibility of guest species from outside. The detection signal of the immunosensor was effectively improved by the novel Ab 2 label. With the good cooperation between Au NRs and Ab 2 label, a linear relationship between current signal and the logarithm of the HBs Ag concentration was obtained in the wide range of 20 fg/mL to 200 ng/mL and the detection limit of HBs Ag was 6.7 fg/mL (signal-to-noise ratio of 3). Besides, the designed immunosensor shows good reproducibility, long-term stability and high specificity. Crucially, the sensitive and selective response to HBs Ag in real human serum samples confirms that the designed immunosensor will be promising in the clinical diagnosis of biomarkers.
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JOURNAL OF MICROENCAPSULATION
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2019
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IF 2.04
Yingting Wang,Along Zuo,Xiaoyan Huang,Ying Ying,Xinsheng Shu,Xianxiong Chen,Yatao Yang,Junxian Ma,Guimiao Lin,Xiaomei Wang,Lin Mei,Gan Liu,Yingying Zhao
Taxane-based chemotherapy-loaded drug delivery systems have great potential for cancer treatment. The docetaxel (DTX)-loaded PAMAM-based poly (γ-benzyl-l-glutamate)-b-d-α-tocopheryl polyethylene glycol 1000 succinate (PAM-PBLG-b-TPGS) nanoparticles and the docetaxel (DTX)-loaded PAMAM-based poly (γ-benzyl-l-glutamate) (PAM-PBLG) nanoparticles were designed using a modified nanoprecipitation method. The particle size, encapsulation efficiency (EE), and in vitro release characteristics of the nanoparticles were tested. The effects of the two nanoparticles on the cellular uptake and cell viability on human cervical cancer cell line Hela and the human breast cancer cell line MCF-7 were compared. Furthermore, their antitumor efficiency was evaluated through in vivo tumour growth experiment in comparison with free DTX. PAM-PBLG-b-TPGS nanoparticles displayed high EE, smaller diameter, and a nice releasing profile. Besides, based on the high EE and ‘self-controlled’ drug release of the DTX-loaded PAM-PBLG-b-TPGS nanoparticles, they exhibited stronger cytotoxicity (lower survival rate) and higher uptake rate than DTX-loaded PAM-PBLG nanoparticles in Hela cells and MCF-7 cells. Furthermore, compared with DTX-loaded PAM-PBLG nanoparticles and free DTX, DTX-loaded PAM-PBLG-b-TPGS nanoparticles produced a potent anti-tumour effect. Thus, the DTX-loaded PAM-PBLG-b-TPGS nanoparticles provide a novel attractive nanocarrier for the DTX delivery of chemotherapy to human breast cancer cells and human cervical cancer cells.
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PubMed
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2026
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IF 5.3
WeiHang Yao,JunYi Ye,PingPing Shen,Richa Raj,BoYang Yu,Xiaorong He,Jian Zhang
This study aims to expand the application of handheld near-infrared spectroscopy combined with machine learning in quantitative analysis of Epimedium . After establishing and evaluating several promising models: Gradient Boosting Regression (GBR), Extra Trees (ET), Extreme Gradient Boosting (eXGB), Support Vector Regression (SVR), Random Forest (RF), Partial Least Squares Regression (PLSR), we selected PLSR and SVR for further optimization due to their excellent performance in terms of R 2 and RMSE. Employing the NIPPY library for data preprocessing and a genetic algorithm for feature selection, models for predicting the contents of four active components in Epimedium were successfully established. The GA-SVR hybrid model delivered the following predictive performance for the four target components: icariin (R 2 :0.9556, RMSE:0.0031, Avg. MAPE:2.07%), epimedin A (R 2 :.9586, RMSE:0.0004, Avg. MAPE:3.60%), epimedin B (R 2 :0.9432, RMSE:0.0003, Avg. MAPE:3.58%) and epimedin C (R 2 :0.9232, RMSE:0.0182, Avg. MAPE:2.33%). These findings establish a novel paradigm for high-throughput analysis and quality assessment of food and traditional Chinese medicine active ingredients.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 4
·123412
·
IF 7.5
Jiahao Ouyang,Yulin Chen,Xiaonuo Li,Jiahao Li,Qiu Xia,Kai Huang,Guangyang Wang,Yong Ye
To address enzyme inactivation upon immobilization and the underutilization of surplus glycerol from biodiesel production, a near-infrared (NIR)-responsive bioconjugate was developed which comprised Candida antarctica lipase B (CALB) immobilized on a CuS/Cu-TCPP support. In this design, Cu-TCPP (a porphyrin-based metal-organic framework) provides a high-surface-area scaffold, CuS nanoparticles act as NIR photothermal converters, and hydrophobic surface modification enhances lipase adsorption. XRD, XPS, SEM, and TEM confirmed the formation of covellite-structure CuS on Cu-TCPP and successful enzyme immobilization. The system achieves a photothermal conversion efficiency of 22.70% (defined as the ratio of heat generated to absorbed laser energy), retains 99.52% of its initial activity at 70 °C, and preserves 74.20% activity after five reuse cycles. During glycerol esterification under NIR irradiation (808 nm) at room temperature, oleic acid conversion reaches 69.2%, representing a 2.42-fold increase compared to the non-irradiated control (28.6%). Bandgap analysis (1.66 eV > 1.53 eV) confirms the absence of reactive oxygen species generation, preventing enzyme oxidative inactivation. This work enables remote, real-time, and precise control of lipase catalysis via localized photothermal heating, offering a green strategy for glycerol valorization.
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Journal of Bioresources and Bioproducts
·
2025
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IF 13
Shuang Qi,Hui Yang,Tian Fang,Tingwei Zhang,Bo Jiang,Sehrish Manan,Chaofeng Zhang,Peng Wang,Caoxing Huang,Wenjuan Wu,Yongcan Jin
Lignin, a natural and renewable aromatic biopolymer, has gained attention in various biomedical applications due to its diverse structure, excellent biocompatibility, and antioxidant activity. However, the effects of lignin with tailored molecular weight on treating type 2 diabetes mellitus (T2DM) remain largely unexplored. In this study, a series of heterogeneous natural phenolic kraft lignin (KL) with tailored molecular weights, derived through an anti-sugar strategy, were prepared by continuous fractionation. The lignin fractions were categorized as F1, F2, and F3, corresponding to high, medium, and low molecular weights, respectively. Their therapeutic effects on T2DM were evaluated using a fractionated lignin culture cell model and intravenous injection into the tail vein of diabetic rats. The results demonstrated that lignin's protective effects in attenuating T2DM progression were molecular weight-dependent. Specifically, F3 reduced fasting blood glucose, reversed insulin resistance, and improved insulin sensitivity by mitigating oxidative stress and inflammatory responses. Mechanistic investigations revealed that F3 positively regulated glucose and lipid metabolism, inhibited hepatic gluconeogenesis, and enhanced hepatic glycogen synthesis by activating the insulin receptor substrate 1/phosphoinositide 3-kinase/protein kinase B (IRS1/PI3K/AKT) signaling pathway. Results revealed that lignin exerts its therapeutic effects on T2DM in a molecular weight-dependent manner, with IRS1/PI3K/AKT signaling as a potential underlying mechanism. This highlights lignin with a defined molecular weight as a promising candidate for T2DM treatment.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 47
·期 4
·1935-1944
·
IF 3.925
Hancheng Tan,Xiaolan Zhou,Haiyan Zhu,Wenxiu Gu
A micro/nano hierarchical flower-like ZnS/FeS2 direct Z-scheme heterojunction visible-light catalyst was in situ derived from a Prussian blue analogue cube (Zn–Fe PBA) using a facile one-pot hydrothermal sulfidation strategy. The as-prepared ZnS/FeS2 catalyst shows extraordinarily boosted visible-light photocatalytic degradability for Rhodamine B (RhB) with the synergism of peroxydisulfate (PDS). Under visible-light illumination, 98.5% degradation efficiency can be achieved within 15 min and 100% within 20 min with excellent structural stability of ZnS/FeS2. The degradation kinetic constant of ZnS/FeS2 + PDS is 9.33 times that of ZnS/FeS2, 23.02 times that of p-ZnS/FeS2, 24.05 times that of FeS2, and 28.25 times that of ZnS, respectively. The ZnS/FeS2 heterojunction shows significant synergistic benefits in the photocatalytic degradation reaction. More advantageously, ZnS/FeS2 + PDS shows excellent photocatalytic degradation performance in a wide pH range (1–10). A reasonable direct Z-scheme heterojunction mechanism for visible-light responsive photocatalytic degradation of RhB with ˙OH, h+, ˙O2−, and ˙SO4− as the crucial active species is recommended for the ZnS/FeS2 + PDS composite system. The micro/nano hierarchical flower-like structure of ZnS/FeS2 simultaneously combines the high activity of nano-materials with the advantages of easy recycling of micro-sized materials. The in situ transformation characteristics of ZnS/FeS2 from the PBA template contribute to the advantageous high performance and structural stability.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Nazir Ahmad,Nisar Muhammad,Hong Chen,Ji Wang,Chaohui Wei,Majid Khan,Ruizhi Yang
Developing improved anode materials is critical to the performance enhancement and the lifespan prolonging of sodium-ion batteries (SIBs). In this context, carbon-based nanostructures have emerged as a promising candidate. In this work, we have synthesized N, B, and P tri-doped carbon (NBPC) spheres using a one-step carbonization method. The as-prepared NBPC exhibits exceptional properties, including an expanded layer space, sufficient structural defects, and enhanced electrical conductivity . These characteristics synergistically contribute to the remarkable rate capability and ultra-long lifespan when NBPC is employed as an anode material for SIBs. The as-prepared NBPC demonstrates a reversible capacity of 290.6 mAh/g at 0.05 A/g, with a capacity retention of 98.4% after 800 cycles. Furthermore, NBPC exhibits an impressively ultra-long cycle life of 2400 cycles at 1.0 A/g with a reversible capacity of 140.2 mAh/g. First principle calculations confirm that the introduction of N, B, and P heteroatoms in carbon enhances the binding strength of sodium ions within NBPC. This work presents a novel approach for fabricating advanced anode materials, enabling the development of long-life SIBs for practical applications.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Pei Su,Ge Song,Xuechun Wang,Qizhan Zhang,Wenyang Fu,Minghua Zhou
To improve the mineralization efficiency of pollutants under wide pH ranges by self-sustained electrochemical advanced oxidation processes (EAOPs) without any reagent addition, a flow-through system based on the bifunctional cathode of B, N-doped carbon nanotubes embedded with nano-Fe 0 particles that loaded on graphite felt (Fe@BN-C/GF) was developed. Dominant by 1 O 2 oxidation, the sulfamethazine (SMT) degradation rate and TOC removal in this recirculated flow-through system were 2.6 ∼ 3.3-folds and 1.4 ∼ 2.4-folds that of the batch system under the pH ranges of 3 ∼ 11, respectively. The SMT degradation performance was found not affected in the presence of HCO 3 – , NO 3 – , Cl - , K + , or humic acid (HA). The Fe@BN-C/GF cathode had more potential to treat enlarged wastewater by 5-folds during 10 h operation, and the SMT and TOC removal was 99% and 70.31%, respectively. The total phosphorus (TP), ammonia nitrogen (NH 3 -N) and TOC in reverse osmosis concentrate and secondary wastewater effluent could be simultaneously removed to <0.01 mg L -1 and 8 mg L -1 by this flow-through system with a low electric energy consumption (EEC) of 0.022 and 0.18 kWh gTOC -1 , respectively. This EAOPs based on the flow-through Fe@BN-C/GF cathode was self-sustained, and had very promising application prospect of high mineralization of pollutants even for low-conductivity wastewater.
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ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Zhen Xu,Yuling Zhang,Bozhen Wang,Zhi Liu,Jinsheng Zhao,Yu Xie
Three novel π-conjugated indolo[3,2-b]carbazole derivatives, 2,8-di(thiophen-2-yl)-5,11-dioctyl-indolo[3,2-b] carbazole (TICZ), 2,8-bis(4-ethylthiophen-2-yl)-5,11-dioctyl-indolo[3,2-b]carbazole (ETICZ) and 2,8-bis(2-(3,4-ethylenedioxythiophene))-5,11-dioctyl-indolo[3,2-b]carbazole (EDTICZ), were synthesized and electrochemically polymerized to afford the corresponding polymers. The effects of different substituent groups on thiophen units in terms of optical, electrochemical, and electrochromic properties and the performance of electrochromic devices (ECDs) were investigated in detail. Electrochemical and optical analysis demonstrated that incorporation of strong auxochromic groups resulted in polymer PEDTICZ with low oxidation potentials, red-shifted absorption peaks and corresponding narrow band gap values but is unfavorable for incorporating ethyl groups . Spectroelectrochemical studies indicated an evident variation in the absorption spectra as well as significant color changes for all of the polymer films upon application of an external potential. PTICZ had high optical contrast with visible light (58.6%), fast switching speed (0.92 s), and satisfactory coloration efficiency (167 cm 2 C −1 ). Of these three systems, the results for PEDTICZ were next best, and those for PETICZ were third. Also, there was a larger contrast (82.7% and 57.8%) in the NIR region (1500 nm) for the PTICZ and PEDTICZ films, respectively. Along with high coloring efficiencies, these results indicate that these systems are favorable for many NIR applications.
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MICROCHIMICA ACTA
·
2017
·Vol. 184
·期 11
·4417-4424
·
IF 4.58
Qu Fei,Liu Yining,Kong Rongmei,You Jinmao
The authors report that the fluorescence of polymer-capped silver nanoclusters (AgNCs) is quenched by MoS 2 nanosheets. However, in the presence of electrolytes such as sodium acetate (50 mM), the nanosheets tend to aggregate, and this causes fluorescence to be restored. If, however, ssDNA is added, it will be adsorbed on the surface of the MoS 2 nanosheets and stabilize them against aggregation. As a result, the emission of the AgNCs (best measured at excitation/emission wavelengths of 375/455 nm) is quenched again. If complementary oligonucleotide is added, a dsDNA will be formed that does no longer prevent aggregation and fluorescence is restored. Similarly, if an aptamer is adsorbed on the MoS 2 nanosheets and its substrate is then added to form a folded state, the fluorescence of the AgNCs also will be restored. As a proof of concept, the DNA sequences of hepatitis B virus and of a dopamine-selective aptamer were chosen as models. The resulting assays have low detection limits and linear ranges that extend from 5 to 30 nM for hepatitis B DNA, and from 0.3 to 1 μM for dopamine. In our perception, this method represents a universal platform for the detection of analytes for which complementary oligomers or aptamers are available.
The blue fluorescence of AgNCs is quenched by MoS 2 nanosheets. MoS 2 nanosheets possess different affinity toward single-stranded DNA (ssDNA) versus double-stranded (dsDNA) and folded DNA. Based on this, multiple targets can be detected through changing the sequence of ssDNA.
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