Nano Life
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2015
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IF 0
Qiong Yi,Ling Li,Lu Fan,Keke Sun,Lebao Mao,Keke Liang,Li Liu
The adsorption of three kinds of azo dyes from aqueous solution on HKUST-1/graphene oxide (GO) composite was studied in view of the removal efficiency, adsorption isotherm, and regenerate of the sorbent. HKUST-1/GO was found to be with higher dyes removal efficiency than HKUST-1. All the adsorption isotherms of azo dyes on HKUST-1/GO composite followed Freundlich isotherm. The adsorbed azo dyes on HKUST-1/GO could be eluted by acetone, so HKUST-1/GO can also be used for enrichment of azo dyes as adsorbent.
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APPLIED SURFACE SCIENCE
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2014
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IF 2.538
Xiuying Liu,Dan Yu,Yingchao Yu,Shujuan Ji
A novel magnetic molecularly imprinted polymer (MMIP) was developed as an adsorbent to selectively remove rhodamine B from real samples. The polymer was characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, and thermo-gravimetric analysis. Static adsorption, kinetic adsorption, and selective recognition experiments were also performed to investigate the specific adsorption equilibrium, kinetics, and selective recognition ability of the MMIP. The MMIPs had outstanding thermal stability, large adsorption capacity, and high competitive selectivity. When they were used as dispersed solid-phase extraction adsorbents in real samples, rhodamine B recovery was 79.97–81.88% and 75.56–79.74% in intra-day and inter-day reproducibility experiments with relative standard deviations lower than 2.62% and 4.28%, respectively. Extraction was optimized for yield and efficiency. Precision, accuracy, and linear working range were determined under optimal experimental conditions. The limits of detection and quantification were 1.05 and 3.49 μg L −1 , respectively. These results suggest MMIPs may be used for determination of rhodamine B in real samples.
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高影响因子
SURFACE REVIEW AND LETTERS
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2013
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IF 0.276
YUDI GUO,DONGYAN TANG,SHUO GU
The dependence of particulate Langmuir–Blodgett (LB) monolayer quality on the surface nature of the substrate was investigated by pretreating the substrates with different methods, and the optimal withdrawal speed was determined by detecting the quality of particulate monolayers deposited at different withdrawal speeds. Furthermore, the effects of stearic acid (SA) concentration on the quality of particulate monolayers were discussed. Results indicated that surface amination would favor the transfer of the floating particulate monolayer from the interface to the substrate, which would be attributed to the formation of chemical bonds between the – NH 2 groups on the substrate surface and the functional groups of – COOH and Si – OH groups on surfaces of particles floating at the interface. And the withdrawal speed of 1 mm ⋅ min -1 was appropriate for the fabrication of high-quality particulate LB monolayer because low withdrawal speed can offer sufficient time to form chemical bonds and expel the subphase from the substrate. Additionally, SEM images illustrated that the SA concentration of 0.40 mg ⋅ mL -1 was suitable for the fabrication of well-ordered particulate LB monolayers composed by the particles of 380 nm.
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高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2025
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IF 4.6
Guangli Li,Nayu Chen,Yafeng Zhang,Tianyu Wang,Rui Zhu,Yuan Jin,Nanke Ma
Rhodamine B (RhB) is highly carcinogenic and is therefore prohibited as a food colorant. Hence, it is necessary to establish a simple but effective technique for the sensitive determination of RhB in foodstuff. Herein, an efficient voltammetric platform was established for the detection of RhB in chili oil based on flower-like β-Bi 2 O 3 microsphere/multiwalled carbon nanotube composites (β-Bi 2 O 3 /MWCNTs). Various microscopic and spectroscopic techniques confirmed the successful formation of β-Bi 2 O 3 /MWCNTs. Owing to the synergistic effect from β-Bi 2 O 3 microspheres and MWCNTs, the β-Bi 2 O 3 /MWCNTs demonstrated superior electrocatalytic activity for the oxidation of RhB as compared to the individual components. Electrochemical kinetics tests confirmed that the RhB electrooxidation was governed by an irreversible and adsorption-controlled process, and involved two electrons one proton transfer pathway. The oxidation peak currents of RhB were linearly correlated with RhB concentrations ranging from 0.05 to 100 μM with a low limit of detection (0.002 μM). The β-Bi 2 O 3 /MWCNT demonstrated strong anti-interfering ability against other azo colorants, and retained robust voltammetric responses for at least 14 days. Moreover, the concentrations of RhB in chili oil were accurately detected by the β-Bi 2 O 3 /MWCNT via second-order derivative linear scan voltammetry with satisfactory recovery. Overall, the β-Bi 2 O 3 /MWCNT/GCE shows great potential for in-situ analysis of trace amounts of RhB in various food matrices.
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高影响因子
Journal of Environmental Chemical Engineering
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2024
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IF 7.4
Chen-Xuan Li,Rui Wang,Wen Sun,Kangping Cui,Xian-Zhong Fu,Minshu Cui,Yihan Chen,Zhi Guo,Yingying Liu
Advanced oxidation systems (AOS) hold promise for tackling refractory dyes in wastewater, yet the quest for efficient systems tailored to the degradation of dye remains a formidable hurdle. Here, a novel visible-light-driven AOS, consisting of biomimetic Fe(III) salen complex (FeL, salen= N, N-bis(salicylidene)ethylenediamine) and peroxymonosulfate (PMS), was proposed for highly efficient degradation of Rhodamine B (RhB), a model dye. The proposed AOS was capable of degrading 94.8 % RhB in 40 min, outperforming the typical Fe 3+ -based system, which achieved only 52.6 % pollutant degradation under identical conditions. As indicated by experimental results and theoretical calculations, the unique Fe-N 2 O 2 coordination structure of FeL facilitated the adsorption of terminal O (O3) at PMS site, thereby enhancing the heterolysis of the O-O bond and generating high-valent iron-oxo species (i.e., Fe Ⅴ =O) rather than radicals (SO 4 •− , HO • ). The system demonstrated robust resistance to interference from environmental anions (Cl − , NO 3 − , HCO 3 − , SO 4 2− ), pH variations (initial pH 3.0–11.0) and humic acid . More attractively, it achieved 87.3 % chroma and 37.6 % chemical oxygen demand (COD) removal in real dye wastewater samples. This work may shed light on the understanding and development of biomimetic Fe complexes-based AOS for wastewater treatment .
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高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Zhen-Wen Zhang,Ao-Jun Qiu,Geng-Jin-Sheng Cheng,Yu Fan,Yu Xiao,Yan-Zhu Liu,Qian-Yong Cao
Tetracycline detection remains an important research topic in the bioenvironmental field today. This paper reports a novel amphiphilic Eu(III) complex DO 3 AC 12 -Eu for single signal and ratiometric fluorescence detection of tetracycline (TC) in aqueous solution. DO 3 AC 12 -Eu can self-assemble micelle-like nano-aggregation in aqueous solution with no fluorescence. After addition of TC, the Eu(III)-based emission was observed for the effective antenna effect from TC to Eu(III) center. In addition, DO 3 AC 12 -Eu can load 4-methylumbelliferone sodium (MU) as a fluorescence reference to form DO 3 AC 12 -Eu/MU co-assembly nano-aggregation with a blue emission at 450 nm. Based on the TC-induced antenna effect and inner filter effect mechanism between TC and MU, DO 3 AC 12 -Eu/MU exhibits a ratiometrically fluorescent response toward TC, with increasing Eu(III)-based emission at 615 nm, and decreasing MU-based emission at 450 nm. Importantly, DO 3 AC 12 -Eu/MU exhibits superior sensitivity and selectivity over DO 3 AC 12 -Eu . The detection limit of DO 3 AC 12 -Eu/MU toward TC is 0.82 nM, far lower than that of DO 3 AC 12 -Eu (9.5 nM). Furthermore, DO 3 AC 12 -Eu/MU assembly has been successfully used for on-site and real-time detection of TC in food samples by using the smartphone-based visualization method and test gel.
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高影响因子
DYES AND PIGMENTS
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2025
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IF 4.2
Zhaokang Zheng,Zhen Liu,Yujie Ma,Aiwu Wang,Cangtao Zhou,Muhammad Humayun,Mohamed Bououdina
Oxygen vacancies (OVs) govern pollutant adsorption, but quantifying their impact remains challenging. Herein, oxygen-vacancy-rich amorphous MoO 3-x nanostructures (A-MoO 3-x ) were fabricated through a simple one-step hydrothermal route. Compared with previously reported MoO 3 -based adsorbents, A-MoO 3-x exhibits higher adsorption capacity. The Liu model yields a maximum methylene-blue (MB) uptake of 1549.8 mg/g, kinetics obeys a pseudo-second-order model, and thermodynamic analysis confirms a spontaneous, exothermic process. Moreover, A-MoO 3-x selectively removes cationic dyes within a competitive six-dye system (four cationic and two anionic dyes). XPS, EPR and FTIR reveal that cationic dyes are captured via a dual mechanism of electrostatic attraction and electron transfer. When OVs density is deliberately reduced to 76 % of its original value, the adsorption capacity decreases by 66 %, directly evidencing OVs as the dominant active sites. This work elucidates the decisive role of OVs in modulating the adsorption performance of metal oxides.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Muhammad Muneeb Ahmad,Yunyun Ma,Vadivel Saravanan,Hira Shahid,Lulu Huang,Munzar Badshah,Qiaosheng Pu
Solar-driven interfacial water evaporation has emerged as a promising strategy to address freshwater scarcity. Several solar evaporators have been explored for photothermal water evaporation but their use is limited due to high cost and low evaporation rates. In this study, a super hydrophilic and highly porous Ti 3 C 2 T x /alginate aerogel solar evaporator is fabricated using a novel and straightforward freeze–thaw and solvent exchange approach. Compared to conventional approaches, such as directional freezing and freeze-drying, the proposed method yields a highly porous structure that enhances photothermal performance while simplifying the fabrication process. MXene in Ti 3 C 2 T x /alginate aerogel improves light absorption while its super hydrophilic surface and porous structure facilitate continuous water transport, significantly boosting the water evaporation rate. The optimal aerogel evaporator (M 40 AA) demonstrated a high-water evaporation rate of 2.09 kg m -2 h −1 under one sun irradiation and an evaporation efficiency of 86.09 %. The 14.63, 14.51, and 13.51 kg m −2 of purified water were collected in 7 h through a simple device in the purification of river water, dyes wastewater, and simulated seawater, respectively. Ti 3 C 2 T x could be recycled, from the aerogel evaporator with only a 7.6 % decline of the evaporation rate up to 5 days of continuous use.
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高影响因子
Cell Reports
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2025
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IF 6.9
Zijia Sun,Yingsheng Wang,Shaorui Liu,Hui Li,Danyang He,Heping Xu
Intrinsic enteric neurons (iENs) form a crucial neuronal network within the myenteric and submucosal plexus of the gastrointestinal tract, primarily responsible for regulating gut peristalsis. The mechanisms by which iENs sense and integrate dietary and microbial signals to regulate intestinal homeostasis and inflammation remain unclear. Here, we showed that environmental sensor aryl hydrocarbon receptor (AHR) was expressed in different iEN subsets in the ileum and colon and that AHR ligands differentially modulated iEN activity in these regions. Genetic perturbation of Ahr in neurons increased iEN activation in the ileum but, conversely, decreased it in the colon in response to different intestinal pathogens. Furthermore, neuronal AHR deficiency enhanced the clearance of bacterial pathogens, which was associated with increased proliferation and abundance of group 3 innate lymphoid cells in the ileum. Together, our findings demonstrate the region-specific functions of AHR in neurons in response to infections.
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PubMed
高影响因子
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