检索结果-南通市图书馆

H_(3)PO_(4) activated biochars derived from different agricultural biomasses for the removal of ciprofloxacin from aqueous solution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2023年第4期75卷 217-227页

作者： jinbo ouyang Jian Chen Wenqian Chen Limin Zhou Di Cai Cong Ren Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices East China University of TechnologyNanchang330013China Department of Pharmacy National University of Singapore117544Singapore National Energy Research and Development Center for Biorefinery Beijing University of Chemical TechnologyBeijing100029China

Biochars were prepared by the pyrolysis of various H_(3)PO_(4) activated agricultural biomasses at 600℃and subsequently used as adsorbents for the removal of ciprofloxacin(CIP)from aqueous *** shell-based biochar(PSBC),corncob-based biochar(CCBC)and cotton-based biochar(CTBC)had high surface areas(571.0-1006.3 m^(2)/g),well-developed pore structures(mesopores with large pore volumes)and available adsorption functional groups(C=C,C-N and C-O-C).The CIP adsorption onto the biochars was investigated by batch experiments(kinetics,isotherms,thermodynamics,pH,etc.).Thermodynamics calculations showed the spontaneous(ΔG^(θ)0)nature of the *** particular,CCBC exhibited high adsorption capacity(120.6 mg/g)of CIP in real lake water and it also had significant removal efficiency of other common pharmaceutical contaminants from real lake environ-ment,and even in a coexisting quintuple ***,multiple interaction mechanisms of CIP adsorption onto aromatized biochar were explored combining characterization analysis and theoretical *** of the mechanism of CIP adsorption onto biochar provides new insights into the assessment of the removal of pharmaceuticals from the aqueous environment.

关键词： Biochar Adsorption Pharmaceutical contaminants Ciprofloxacin Water remediation

Thermodynamic study on dynamic water and organic vapor sorption on amorphous valnemulin hydrochloride

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2015年第1期9卷 94-104页

作者： jinbo ouyang Jingkang WANG Yongli WANG Qiuxiang YIN Hongxun HAO School of Chemical Engineering and Technology State Key Laboratory of Chemical Engineering Tianjin University Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)

The sorption of water and organic vapors on valnemulin hydrochloride was determined by dynamic vapor sorption at 25 °C. The adsorption-desorption behavior of water vapor and a series of organic vapors was investigated to probe the structural changes in valnemulin hydrochloride before and after sorption. The isothermal adsorption equilibrium data was evaluated using Guggenheim-Anderson-de Boer(GAB) and Brunauer-Emmett-Teller(BET) models. The BET model is applicable only at low relative pressures(0.1￡RP￡0.4)while the GAB model is applicable in the whole range of RPs(0.1￡RP￡0.9). The sorption kinetics at high RPs was determined by fi tting the sorption data to the Avrami equation and the sorption content vs. time relationship could be predicted by the Avrami equation. Finally, the possible sorption mechanism of valnemulin hydrochloride was also discussed.

关键词： valnemulin hydrochloride water vapor organic vapors sorption kinetics

Estimation of secondary nucleation kinetics of benzoic acid in batch crystallizer

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Particuology 2024年第4期87卷 232-239页

作者： Yan Zhao Weiyuan Zhang jinbo ouyang Guangyang Hou Vamsi Krishna Kamaraju Brian Glennon School of Chemical Engineering Hebei Normal University of Science and TechnologyQinhuangdao066004China Synthesis and Solid State Pharmaceutical Centre School of Chemical and Bioprocess EngineeringUniversity College DublinDublin 4Ireland Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices East China University of TechnologyNanchang330013China APC Ltd Dublin 4Ireland

The nucleation and growth kinetics of benzoic acid were determined in a population balance model,describing the seeded batch antisolvent crystallization *** process analytical technologies(PATs)were utilized to record the evolution of chord length distributions(CLDs)in solid phase together with the concentration decay in liquid phase,which provided essential experimental information for parameter *** model was solved using standard method of moments based on the moments calculated from CLDs and solute concentration.A developed model,incorporating the nucleation and crystal growth as functions of both supersaturation and solvent composition,has been constructed by fitting the zeroth moment of particles and concentration *** determined kinetic parameters were consequently validated against a new experiment with a different flow rate,indicating that the developed model predicted crystallization process reasonably *** work illustrates the strategy in construct a population balance model for further simulation,model-based optimization and control studies of benzoic acid in antisolvent crystallization.

关键词： Benzoic acid Antisolvent crystallization Population balance equation Nucleation Growth

Adsorption removal of sulfamethoxazole from water using UiO-66 and UiO-66-BC composites

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2022年第3期20卷 71-78页

作者： jinbo ouyang Jian Chen Shaoqing Ma Xiaohong Xing Limin Zhou Zhirong Liu Chuntao Zhang Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of TechnologyNanchang 330013China School of Chemistry and Chemical Engineering Wuhan University of Science and TechnologyWuhan 430081China

The adsorption removal of anti-inflammatory drugs from water by diverse materials has drawn great *** study investigated the adsorption of sulfamethoxazole(SMX)by two types of materials,UiO-66 and UiO-66-BC *** porous MOF composites with functional groups were synthesized by combining UiO-66 with corncob-based biochar at different molar *** results showed that macroporosity of UiO-66-BC composites was increased by increasing the ratio of *** was found that UiO-66-BC composites displayed highly improved adsorption performance of SMX relative to pristine ***-66-BC(5%)had the highest SMX adsorption capacity,about 2.4 times those of pristine *** was the high surface area of UiO-66 and redundant functional groups of biochar that increased the adsorption performance of ***,UiO-66-BC can be reused and displayed the competitive adsorption efficiency after successive adsorption,which made it a potential adsorbent for the removal of SMX from water.

关键词： Adsorption UiO-66 Biochar Sulfamethoxazole

Effects of solvent,supersaturation ratio and silica template on morphology and polymorph evolution of vanillin during swift cooling crystallization

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2022年第6期20卷 93-104页

作者： jinbo ouyang Xiaohong Xing Jian Chen Limin Zhou Zhirong Liu Jerry Y.Y.Heng Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices East China University of TechnologyNanchang 330013China Department of Chemical Engineering Imperial College LondonSouth Kensington CampusLondon SW72AZUK

Swift cooling crystallization of vanillin was investigated in water,ethanol,isopropanol and ethyl *** and polymorph evolution of vanillin were discussed in terms of solvent,supersaturation ratio and silica ***,DSC,FTIR and microscope were used to identify polymorphs of *** showed that the nucleated polymorphs of vanillin depended largely on the solvent,supersaturation ratio and silica *** supersaturation ratios favor the nucleation of stable form I in water,and high supersaturation ratio exceeds 7 generating 100%metastable form ***,if the supersaturation ratio is too high(S>8),liquid-liquid phase separation will occur,and no crystals could be *** other solvents such as ethanol,isopropanol and ethyl acetate,only form I was ***,it should be noted that the morphology of form I prepared in ethanol,isopropanol and ethyl acetate is distinct from that obtained in water,the former is flake-like and the latter is *** nucleation of vanillin from different solution was also studied with the presence of SiO_(2),SiO_(2)-NH_(2)and SiO_(2)−COOH templates,which did not change the nucleated polymorph of vanillin,but changed the nucleation and growth rate of stable form I.

关键词： Vanillin Supersaturation ratio Nucleation Polymorph Template

Cocrystals of carbamazepine:Structure,mechanical properties,fluorescence properties,solubility,and dissolution rate

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2024年第7期90卷 20-30页

作者： jinbo ouyang Lishan Liu Yin Li Mingyang Chen Limin Zhou Zhirong Liu Li Xu Hamza Shehzad School of Chemistry and Materials Science East China University of TechnologyNanchang 330013China School of Physics and Materials Science Nanchang UniversityNanchang 330013China School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China

Carbamazepine(CBZ)is an anticonvulsant with very low water solubility,presenting as a white crystalline powder with poor mechanical properties and is hard to *** enhance CBZ's physicochemical properties,such as water solubility and mechanical properties,we selected six cocrystal coformers(CCFs):nicotinamide(NIC),benzamide(BZM),salicylic acid(SCA),fumaric acid(FMA),trimesic acid(TMA),and hesperetin(HPE).Six CBZ cocrystals were successfully prepared using the solution *** transform infrared spectroscopy(FT-IR),powder X-ray diffraction(PXRD),differential scanning calorimetry(DSC),and single crystal X-ray diffraction(SCXRD)were used to characterize the crystal structures and gain comprehensive insights into the six *** mechanical,fluorescence,and solubility properties of the six cocrystals were *** results reveal that most of the prepared cocrystals exhibit improved water solubility and mechanical properties when compared to *** them,the dissolution rate of cocrystals excluded from CBZ-HPE has increased by an average of 3 or 4 times compared to CBZ,while CBZ-HPE exhibits superior mechanical ***,all six cocrystals possess better fluorescence performance than *** thoroughly evaluated the mechanical properties of the cocrystals through both experimental and theoretical *** work provides a new direction for studying drug cocrystals to improve the physicochemical properties of drugs.

关键词： Carbamazepine Cocrystal Mechanical properties Fluorescence performance Dissolution rate

Nitric oxide removal from flue gas coupled with the Fe^(Ⅱ)EDTA regeneration by ultraviolet irradiation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2024年第4期68卷 133-143页

作者： Yuan Xu Ziwei Liu Ying Dai jinbo ouyang Zhuyao Li Yuling Zhu Jianhua Ding Feiqiang He School of Chemistry and Materials Science East China University of TechnologyNanchang 330013China

During wet complexation denitrification of flue gas,Fe^(Ⅱ)EDTA regeneration,also known as reducing Fe^(Ⅱ)EDTA and Fe^(Ⅱ)EDTA-nitric oxide(NO)to Fe^(Ⅱ)EDTA,is *** this paper,ultraviolet(UV)light was used for the first time to reduce Fe^(Ⅱ)*** experimental result demonstrated that Fe^(Ⅱ)EDTA-NO reduction rate increased with UV power increasing,elevated temperature,and initial Fe^(Ⅱ)EDTA-NO concentration ***^(Ⅱ)EDTA-NO reduction rate increased first and then decreased as pH value increased(2.0-10.0).Fe^(Ⅱ)EDTA-NO reduction with UV irradiation presented a first order reaction with respect to Fe^(Ⅱ)*** with other Fe^(Ⅱ)EDTA regeneration methods,Fe^(Ⅱ)EDTA regeneration with UV show more superiority through comprehensive consideration of regeneration rate and ***,NO absorption experiment by Fe^(Ⅱ)EDTA solution with UV irradiation confirmed that UV can significantly promote the NO removal performance of Fe^(Ⅱ)*** oxygen concentration(3%(vol))and acidic environment(pH=4)was favorable for NO *** UV power increasing as well as temperature decreasing,NO removal efficiency *** addition,the mechanism research indicates that NO from flue gas is mostly converted to NO_(2)-,NO_(3)-,NH_(4)^(+),N_(2),and N_(2)O with Fe^(Ⅱ)EDTA absorption liquid with UV *** strengthens NO removal in Fe^(Ⅱ)EDTA absorption liquid by forming a synergistic effect of ***,compared with NO removal methods with Fe^(Ⅱ)EDTA,Fe^(Ⅱ)EDTA combined UV system shows prominent technology advantage in terms of economy and secondary pollution.

关键词： Fe^(II)EDTA Ultraviolet Flue gas Nitric oxide Regeneration Absorption

Fabrication of micro spherulitic particles of carbamazepine-hesperetin cocrystal via QESD with enhanced manufacturability and dissolution

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Particuology 2024年第10期93卷 11-21页

作者： jinbo ouyang Lishan Liu Zichen Ning Zhuoshan Gong Limin Zhou Feiqiang He Zhi Gao Li Xu Shichao Du Huaiyu Yang Jiangxi Province Key Laboratory of Functional Organic Polymers East China University of TechnologyNanchang330013China School of Pharmaceutical Science Qilu University of TechnologyJinan250353China Department of Chemical Engineering Loughborough UniversityLeicestershireLE113TUUK

Granulation is an effective method for improving the flowability of drugs, particularly when they are in needle form. Carbamazepine-hesperetin (CBZ-HPE) cocrystal is a needle-like crystal with low solubility and poor flowability, which limits its application. To address this issue, this study aimed to obtain CBZ-HPE microspheres using the quasi-emulsion solvent diffusion (QESD) technique. The preparation process was monitored using polarized light microscopy, and the formation mechanism was elucidated using the radial distribution function (RDF). The microspheres were extensively characterized using PXRD, DSC, TGA, and SEM. Furthermore, the effects of surfactants, contents, and rotational speeds on the morphology and particle size distribution of microspheres were analyzed to determine the optimal experimental conditions. Based on these findings, naringenin and quercetin, the active ingredients of traditional Chinese medicine, were chosen to successfully prepare CBZ-HPE multicomponent microspheres. This research provides a foundation for increasing drug powder properties and drug conjugation through the preparation of microspheres.

关键词： Carbamazepine-hesperetin cocrystal Quasi-emulsion solventdiffusion(QESD) technique Microspheres Flowability Dissolution rate

Design spherical particles of potassium peroxymonosulfate compound salt with high stability and good powder properties via an agglomeration-dissolution mechanism

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2023年第9期80卷 157-169页

作者： Shanshan Feng Changyou Yu Shilin Guo jinbo ouyang Fei Yin Xiaodong Zhang Yongjian Zhang Mingyang Chen Dandan Han Junbo Gong Jingkang Wang State Key Laboratory of Chemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin300192China Institute of Shaoxing Tianjin UniversityZhejiang312300China School of Chemistry Biology and Materials ScienceEast China University of TechnologyNanchang330013China Zhejiang Jinke Daily Chemical Materials Co. Ltd.Zhejiang312300China

With the outbreak of COVID-19,disinfection protection has become a necessary measure to prevent *** a new type of disinfectant,potassium peroxymonosulfate compound salt(PMS)has the advantages of good bactericidal effect,non-toxicity,high safety and ***,the current PMS products with irregular particle shapes lead to poor flowability,high hygroscopicity,poor stability of reactive oxygen species(ROS)and serious caking *** this work,an agglomeration-dissolution mechanism was designed to prepare spherical PMS particles with large size(>300μm)and high sphericity(up to 90%),effectively addressing the above ***(dissolution and abrasion)is the key to improving sphericity,which is mainly controlled by the design of the heating mode,residence time and stirring *** with the irregular PMS particles,the large spherical particles present better flowability(angle of repose decreased by 35.80%,Carr's index decreased by 64.29%,Hausner's ratio decreased by 19.14%),lower hygroscopicity(decreased by 38.0%),lower caking ratio(decreased by 84.50%),and higher stability(the monthly loss of ROS was reduced by 61.68%).The agglomeration-dissolution mechanism demonstrates the crystallization,agglomeration,dissolution and abrasion process of inorganic salt crystals,providing an opportunity to prepare high-end inorganic crystal materials with high-quality morphologies.

关键词： Potassium peroxymonosulfate compound salt Spherical crystallization Agglomeration Dissolution Disinfection protection