INDUSTRIAL CROPS AND PRODUCTS
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2026
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IF 6.4
Jing Liu,Yongkui Zhang,Yabo Wang
Biomass-derived biochar is a promising adsorbent for removing organic pollutants from wastewater, yet its performance is often constrained by limited pore development. A novel activation strategy using potassium citrate (KCit) was proposed to convert waste baijiu distillers’ grains (BDGs) into high-performance biochar with a hierarchical porous structure for DCF removal. Unlike conventional activators (e.g., KOH or ZnCl 2 ) that are highly corrosive or rely on single pore-forming mechanisms, KCit serves as a green, low-corrosive, and multifunctional agent that simultaneously enables K⁺-induced etching, gas evolution, and molten-salt templating. Multi-technique characterizations (TG-FTIR, N 2 physisorption, mercury intrusion porosimetry, FESEM, etc.) were applied to reveal the critical role of KCit in pore evolution. Both batch adsorption and column test were used to evaluate the performances of the BDGs-derived biochar. The KCit-assisted pyrolysis promoted the formation of abundant micro–mesopores through K⁺-induced etching, gas evolution, and molten-salt templating effects, significantly improving the textural properties and adsorption capacity of the resulting biochar. The optimized sample exhibited superior performance in both batch and continuous adsorption systems, with rapid uptake and prolonged breakthrough time. The adsorption process was mainly governed by π–π interactions, hydrogen bonding, and pore filling. This work highlights the potential of KCit activation for valorizing biomass waste and developing efficient adsorbents for organic pollutant removal from water.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2018
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IF 5.667
Diandian Deng,Hong Yang,Chang Liu,Kang Zhao,Jianguo Li,Anping Deng
In the last years, surface-enhanced Raman scattering based immunochromatographic assay (SERS-ICA) has been getting great attention and been applied for the detection of different target analytes. In this study, a novel SERS-ICA using Ag MBA @SiO 2 -Ab as an immunoprobe has been developed for rapid, quantitative and ultrasensitive detection of a pharmaceutical diclofenac (DCF) residue in water samples. Ag, [email protected] 2 and Ag MBA @SiO 2 nanoparticles (NPs) were synthesized and characterized. The immunoprobe was prepared by sandwiching the Raman reporter mercaptobenzoic acid (MBA) between the core-shell layers and immobilizing the monoclonal antibody (mAb) against DCF on the surface of the [email protected] 2 NPs. Under optimal conditions, the sensitivity and limit of detection (LOD) of the SERS-ICA for DCF were found to be 9 pg mL −1 and 0.07 pg mL -1 , respectively. The detection of the SERS-ICA for DCF was completed within 15 min. Ag MBA @SiO 2 -Ab was stable within four months without significant loss of SERS intensity. The key to success of the SERS-ICA was the employment of the [email protected] 2 NPs as the SERS substrate, which possessed gorgeous SERS enhancement capability, predominant biocompatibility and excellent stability. This SERS-ICA is potential as an ultrasensitive analytical method in point-of-care testing, clinical diagnosis, food inspecting and environmental monitoring.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2020
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IF 5.774
Fangke Yu,Yi Wang,Hongrui Ma,Minghua Zhou
In this study, we demonstrated that hydrothermal synthesized FeS 2 was highly efficient to catalyze the H 2 O 2 decomposition for diclofenac sodium (DCF) degradation in a wide range of initial pH (3–9) by heterogeneous electro-Fenton (EF) process, and this “Pyrite-EF” showed a better performance for the mineralization of DCF in comparison with the classic EF process. Effect of pyrite content on the hydroxyl radicals generation and iron dissolution produced by the decomposition of hydrogen peroxide (H 2 O 2 ), and applied current density on the degradation kinetics and mineralization efficiency were studied. Moreover, toxicity assessment by means of microtox method showed the solution toxicity was removed after treatment. Experimental results revealed that the enhancement of DCF degradation rate in the Pyrite-EF process was attributed to the molecular oxygen activation induced by more surface bound ferrous ions on FeS 2 , generating superoxide anions to accelerate the Fe(II)/Fe(III) cycle on the FeS 2 surface, which favored the H 2 O 2 decomposition to generate more hydroxyl radicals for the DCF degradation via a heterogeneous EF-like process. These findings could provide some new insights into the molecular oxygen activation induced by FeS 2 and the subsequent heterogeneous Pyrite-EF degradation of organic pollutants from wastewater.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2019
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IF 6.393
Tingyan Shi,Zuorui Wen,Lijun Ding,Qian Liu,Yingshu Guo,Caifeng Ding,Kun Wang
A novel photoelectrochemical (PEC) aptasensor for diclofenac detection, based on visible/near-infrared (vis/NIR) light-responsive vanadyl-phthalocyanine/graphitic carbon nitrid nanosheet (VOPc/CN) nanocomposites, was successfully fabricated. In this work, the first coupling of CN and VOPc with a facile solution–phase method was prepared and applied to PEC sensing. The UV–vis diff ;use reflection spectra (DRS) indicated that VOPc is an excellent photosensitizer when applied to the surface of CN. It promoted CN light absorption to the visible-NIR region, which greatly enhanced the light excitation capability. The PEC signal of the VOPc/CN nanocomposites improved 2.7 and 12.42-fold compared with pure VOPc and CN, respectively, indicating that VOPc/CN nanocomposites have good photoelectric activity and enhanced photo-to-current conversion efficiency. As a result, VOPc sensitized CN was introduced as a covalent immobilizing PEC aptasensor for the sensitive and selective determination of diclofenac (DCF). Under optimal conditions, the fabricated PEC biosensor exhibited good PEC performances with high sensitivity, a low detection limit of 0.03 nM (S/N = 3) and a wide linear response, in the range of 0.1-500 nM. This was due to the specific interaction between DCF and the aptamer. It is concluded that VOPc/CN nanocomposites are potentially promising photoactive materials for applications in PEC biosensors, as well as for photocatalysis and other related fields.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2017
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IF 6.216
Ping Chen,Qianxin Zhang,Yuehan Su,Lingzhi Shen,Fengliang Wang,Haijin Liu,Yang Liu,Zongwei Cai,Wenying Lv,Guoguang Liu
A visible light-driven and environmentally compatible photocatalyst is considered to be a potential application for wastewater treatment processes. In the present study, we employed carbon quantum dots (CQDs) to modify BiOCOOH with the aim of negating the UV limit of the photocatalyst, while increasing its photocatalytic activity. The structure, morphologies, and other characteristics of CQDs/BiOCOOH composites were investigated, which confirmed that CQDs were successfully coupled with BiOCOOH. Under visible light irradiation, a very low CQDs content of 2.0% weight resulted in a 4.64-fold more rapid reaction rate in the photodegradation of diclofenac (DCF) than pristine BiOCOOH. The CQDs served to enhance the visible light absorption of BiOCOOH, which significantly improved visible-light harvesting, as well as interfacial charge transfer and separation. Through a new model study it was revealed that O 2 − was predominantly responsible for DCF degradation. Based on mass spectrometry and theoretical calculations, primary intermediates were identified, and the key pathways proceeded mainly through e − reduction, O 2 − attack, and OH addition reactions. The Vibrio fischeri , Desmodesmus subspicatus , and Daphnia magna were selected to evaluate the acute toxicity, which initially increased and further decreased when the total organic carbon and organic chlorine compounds were reduced. The excellent dechloridation, mineralization, and detoxicity properties via the synthetic CQDs/BiOCOOH photocatalysts clearly demonstrated the potential of this strategy.
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高影响因子
MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Dandan Wang,Deng Li,Yingxi Zhu,Xinran Feng,Zhou Li,Die Gao,Jia Zeng,Xiaodan Hu,Dan Li,Jiahao Lin,Panpan Chen,Ruixia Gao,Kezhi Liu,Jianming Wu
A ternary SF-SA-CS biomass sponge (SSC) was fabricated via electrostatic and hydrogen bonding. • SSC exhibits high adsorption capacity and selectivity for DCF-Na. • Mechanism studies confirm enrichment driven by hydrogen bonding and electrostatic forces. • SSC-HPLC method enables sensitive monitoring of DCF-Na pharmacokinetics in mouse plasma. • SSC-HPLC method provides a robust tool for future in vivo pharmacodynamics of drugs. Diclofenac sodium (DCF-Na) is a widely used non-steroidal anti-inflammatory drug. However, monitoring its dynamic behavior in vivo remains challenging due to the complexity of biological matrices. Herein, a novel biomass sponge adsorbent (SSC) was successfully fabricated via the composite of silk fibroin (SF), sodium alginate (SA), and chitosan (CS) through electrostatic and hydrogen bonding interactions. The resulting SSC exhibited a uniform three-dimensional porous architecture with a specific surface area of 8.64 m 2 ·g −1 and a mesoporous structure (average pore size 17.0 nm). Benefiting from the synergistic effect of abundant amino, carboxyl, and hydroxyl groups, SSC achieved rapid adsorption equilibrium within 60 min and a high saturated adsorption capacity of 165.8 mg·g −1 . Kinetic and isothermal studies revealed that chemisorption and monolayer adsorption were the dominant mechanisms. Significantly, SSC demonstrated remarkable selectivity toward DCF-Na and excellent anti-interference capability in complex coexisting systems, as confirmed by comparative adsorption experiments and cluster analysis. Mechanistic investigations combining spectroscopic analysis and molecular simulations verified that the adsorption was primarily driven by hydrogen bonding and electrostatic interactions. Furthermore, an SSC-HPLC method was developed for the determination of DCF-Na in plasma, yielding a wide linear range, high precision ( RSD < 0.793%), and satisfactory accuracy (recovery: 102%–108%). The established method was successfully applied to monitor the plasma drug concentration of DCF-Na in mice via high-performance liquid chromatography. This work presents an efficient, stable, and environmentally friendly sample pretreatment strategy based on a biomass adsorbent for monitoring of drug concentrations in biological matrices. Download: Download high-res image (172KB) Download: Download full-size image
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Junlei Zhang,Wei Zhao,Shanshan Wu,Renli Yin,Mingshan Zhu
Advanced oxidation processes (AOPs) based on heterogeneous catalytic activated peroxymonosulfate (PMS) have been becoming alternatives to conventional wastewater treatment technologies to directly degrade chemical contaminants. To build dual/multi redox cycles of different metal ions may be an effective means for better PMS activation. Herein, this study designed Mn 3 O 4 /CuBi 2 O 4 with dual redox cycles of Mn(III)/Mn(IV) and Cu(I)/Cu(II) to activate PMS for efficiently decomposing and mineralizing diclofenac sodium (DCF). Under optimal reaction conditions, DCF (50 mg/L) was degraded totally within 10 min, and TOC removal rate reached up to 74.3%. The possible mechanism of PMS activation by Mn 3 O 4 /CuBi 2 O 4 was proposed, wherein dual redox cycles of Mn(III)/Mn(IV) and Cu(I)/Cu(II) on Mn 3 O 4 /CuBi 2 O 4 effectively facilitated PMS activation to generate · O 2 − , 1 O 2 , SO 4 · − and · OH, which was responsible for DCF degradation. Moreover, combined with degraded products detected by high resolution liquid chromatography coupled to mass spectrometry and corresponding toxic assessment results, the possible degradation pathways of DCF were proposed and the relative toxicity of degraded products was evaluated. This work may be useful for developing stronger heterogeneous activators of PMS to construct more efficient AOPs for purifying wastewater.
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高影响因子
JOURNAL OF CLUSTER SCIENCE
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2023
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IF 2.8
Gholipour Arsalan,Jahanshahi Mohsen,Emadi Hamid
In the current study, the carbon quantum dots (CDs) were synthesized through a facile, rapid, and one-step microwave method using citric acid monohydrate and urea. The as-prepared CDs were spherical with diameters of 3-4 nm and displayed bright blue fluorescent under an excitation wavelength of 360 nm. Also, the as-prepared CDs had various properties, including high quantum yield (≈18%), favorable solubility in water, different functional groups, significant stability in various environmental conditions, and excellent optical performance. The results indicated that the CDs could be applied as a fluorescent probe for reliable and accurate detection of Diclofenac sodium (DFS) based on the enhancement of their native fluorescent intensity (turn-on). The emission spectra of the as-prepared CDs were strengthened gradually when the DFS concentration increased from 5 to 300 µM. In addition, the linear relationship was fabricated over the concentrations range of 5–300 µM for DFS with the detection limit of 2.33 µM. Furthermore, the findings showed that Fe doped CDs (Fe-CDs) like CDs have a good ability to detect various concentrations of DFS in the wide range of 5–300 µM.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2018
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IF 5.667
Wanlu Chen,Qing Zhu,Qinghui Tang,Kang Zhao,Anping Deng,Jianguo Li
Herein, Pd nanoparticles (PdNPs) and CdSe@CdS QDs decorated poly(etherimide) (PEI)-graphene oxide (GO) (PdNPs/PEI-GO-QDs) and ceria-zinc oxide were prepared and severally applied as probe and substrate to assemble an electrochemiluminescence (ECL) immunosensor for detecting diclofenac (DCF). The carboxyl groups (−COOH) covered Ce:ZnO and PEI-GO were creatively applied in this sensor not only load more CdSe@CdS QDs and accelerate electron conduction to obtain sensitive ECL signal, but also provide large surface for coating antigen and antibody loading. Furthermore, it is worth noting that the rapid Ce 4+ ↔ Ce 3+ reaction in this Ce:ZnO and PdNPs/PEI-GO can increase the rate of electron transfer to achieve multiple signal amplification. A competitive immunoassay strategy was used for determining DCF, where DCF in the sample would compete with the coating antigen for the limited antibodies. The proposed ECL immunoassay had exhibited high sensitivity for DCF detection with a wide linear range from 0.001 to 1000 ng mL −1 and an ultralow detection limit of 0.3 pg mL −1 . This ECL immunosensor had good stability, acceptable fabrication reproducibility and accuracy for detecting DCF in environmental samples, and provided an approach for determining other important small molecules.
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高影响因子
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