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Investigation of solar-induced photoelectrochemical water splitting and photocatalytic dye removal activities of camphor sulfonic acid doped polyaniline-WO3-MWCNT ternary nanocomposite

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Journal of Materials Science & Technology 2020年第3期38卷 7-18页

作者： Mir Ghasem Hosseini Pariya Yardani Sefidi Ahmet Musap Mert Solen Kinayyigit Department of Physical Chemistry Electrochemistry Research LaboratoryUniversity of TabrizTabrizIran Engineering Faculty Department of Materials Science and NanotechnologyNear East University99138NicosiaNorth CyprusMersin 10Turkey Laboratory of Nanocatalysis and Clean Energy Technologies Institute of NanotechnologyGebze Technical University41400KocaeliTurkey

The camphor sulfonic acid doped polyaniline-WO3-multiwall carbon nanotube(CSA PANI-WO3-CNT)ternary nanocomposite was synthesized during in-situ oxidative polymerization and characterized by Fourier transform infrared(FTIR)spectroscopy,Raman spectroscopy,X-ray diffraction(XRD),Field emission scanning electron microscopy(FESEM),X-ray photoelectron spectroscopy(XPS),Transmission electron microscopy(TEM),and Energy-dispersive X-ray spectroscopy(EDS).The application of CSA PANIWO3-CNT ternary nanocomposite was investigated as the photocatalyst in the degradation of methylene blue dye(MB)and as the noble metal-free photoanode in photoelectrochemical water splitting under solar light *** degradation percentage of MB dye after 60 min illumination by CSA PANI-WO3-CNT ternary nanocomposite reached 91.40%which was higher than that of pure WO3(43.45%),pure CSA PANI(48.4%)and CSA PANI-WO3 binary nanocomposite(85.15%).The photocurrent density of indium tin oxide(ITO)/CSA PANI-WO3-CNT photoanode obtained 0.81 m A/cm2 at 1.23 V *** hydrogen electrode under illumination which was 1.27,2.13,and 4.26 times higher than that of the ITO/CSA PANI-WO3(0.64 m A/cm2),ITO/pure CSA PANI(0.38 m A/cm2),and ITO/pure WO3(0.19 m A/cm2).Also,the applied bias photon-to-current efficiency(ABPE)of ITO/CSA PANI-WO3-CNT was obtained 0.11%which showed two-fold,four-fold,and five-fold enhancements compared to the ITO/CSA PANI-WO3,ITO/CSA PANI,and ITO/WO3,*** electrochemical impedance spectroscopy,as well as the Mott-Schottky results,confirmed the better photoelectrocatalytic activity of ITO/CSA PANI-WO3-CNT in comparison with ITO/WO3,ITO/CSA PANI,and ITO/CSA *** observed improvement in the photocatalytic and photoelectrocatalytic performances of WO3 in the presence of CSA PANI is due to the formation of type-II heterojunction between WO3 and CSA PANI which allows the separation of charge carriers easier and *** the other hand,MWCNT addition to the CSA PANI-

关键词： Camphor sulfonic acid Polyaniline WO3 Photocatalyst Water splitting

A capacitive sensor based on molecularly imprinted polymers and poly(p-aminobenzene sulfonic acid) film for detection of pazufloxacin mesilate

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Science China Chemistry 2007年第4期50卷 547-553页

作者： ZHOU Lu YE GuangRong YUAN Ruo CHAI YaQin CHEN SuMing College of Chemistry and Chemical Engineering Southwest UniversityChongqing 400715China

A novel capacitive sensor for pazufloxacin mesilate (pazufloxacin) determination was developed by electropolymerizing p-aminobenzene sulfonic (p-ABSA) and molecularly imprinted polymers (MIPs), which was synthesized through thermal radical copolymerization of metharylic acid (MAA) and ethyl-ene glycol dimethacrylate (EGDMA) in the presence of pazufloxacin template molecules, on the gold electrode surface. Furthermore, 1-dedecanethiol was used to insulate the modified electrode. Alter-nating current (ac) impedance experiments were carried out with a Model IM6e to obtain the capaci-tance responses. Under the optimum conditions, the sensor showed linear capacitance response to pazufloxacin in the range of 5 ng·mL-1 to 5 μg·mL-1 with a relative standard deviation (RSD) 5.3% (n=7) and a detection limit of 1.8 ng·mL-1. The recoveries for different concentration levels of pazufloxacin samples varied from 94.0% to 102.0%. Electrochemical experiments indicated the capacitive sensor exhibited good sensitivity and selectivity and showed excellent parameters of regeneration and stabil-ity.

关键词： capacitive sensor molecularly imprinted polymers p-aminobenzene sulfonic acid pazufloxacin mesilate

Effect of Dodecylbenzene sulfonic Acid Used as Additive on Residue Hydrotreating

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China Petroleum Processing & Petrochemical Technology 2015年第1期17卷 82-88页

作者： Sun Yudong Yang Chaohe College of Chemical Engineering China University of PetroleumQingdao

The effect of additive—dodecylbenzene sulfonic acid(DBSA)—on residue hydrotreating was studied in the au toclave. The results showed that the additive improved stabilization of the colloid system of residue, which could delay th aggregation and coke formation from asphaltenes on the catalyst, and make heavy components transformed into light oi The residue conversion in the presence of this additive increased by 1.94%, and the yield of light oil increased by 1.53%when the reaction time was 90 min. The surface properties of the catalyst in the presence of this additive were better tha that of the blank test within a very short time(30 min) and deteriorated rapidly after a longer reaction time due to highe conversion and coke deposition. Compared with the blank test, the case using the said additive had shown that the structur of hydrotreated asphaltene units was smaller and the condensation degrees were higher. The test results indicated that th additive could improve the hydrotreating reactivity of residue via permeation and depolymerization, the heavier componen could be transformed into light oil more easily, and the light oil yield and residue conversion were higher for the case usin the said additive in residue hydrotreating process.

关键词： residue hydrotreating dodecylbenzene sulfonic acid product distribution catalyst properties asphaltenes structure

UV- VIS SPECTRA OF POLYANILINE DOPED WITH CAMPHOR sulfonic ACID IN DIFFERENT ORGANIC SOLVENTS

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Journal of Central South University 1999年第2期11卷 127-129页

作者： Chunming Yang Zheng Fang Pingmin Zhang 1. College of Chemistry and Chemical Engineering Central South University of Technology 410083 Changsha China

The doping reaction of polyaniline with camphor sulfonic acid (CSAH) in different organic solvents was studied by UV Vis spectroscopy. The experimental results show that the polaron band of the species was shifted to shorter wavelength when polyaniline was doped with CSAH in N methyl 2 pyrrolidione (NMP) solvent, while the red shift of polaron band was observed when it was in N, N dimethylformamide (DMF). It indicates that the influence of different processing solvents on the doping property of polyaniline is greatly different. N methyl 2 pyrrolidione is a good solvent for polyaniline, polyaniline chain is unfolded in it. The interaction of NMP with CSAH is so strong that the resulting product is apt to dedoping, while the solubility of polyaniline in DMF is relatively low and polyaniline chain is in partly folded state. Thus the doping reaction is kinetically disadvantageous but thermodynamically advantageous.

关键词： polyaniline dope camphor sulfonic acid UV Vis spectra

Preparation, Characterization and Catalytic Activity of Alkyl Benzene sulfonic Acid Carbon-Based Acid Catalyst

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Journal of Surface Engineered Materials and Advanced Technology 2015年第2期5卷 93-101页

作者： Huoxin Luan Yunqiang Wu Wenxiang Wu Quansheng Chen Hailing Zhang Kang Liu Guangmiao Qu Wei Ding Xinjiang Oilfield Company Xinjiang China Northeast Petroleum University Daqing China

Based on starch and series of alkyl benzene sulfonic acid as the materials, a novel carbon-based solid acid catalyst is synthesized using hydrothermal method. This catalyst exhibits much higher catalytic activity in the reaction of esterification of Mono-fatty alcohol polyoxyethylene maleate esters with 1,4-butanediol. The structure of carbon-based solid acid catalyst was charactered by IR and XRD, characterizations showed that this catalyst exhibited high –SO3H loading. Reusability of the carbon-based solid acid catalyst for esterification showed that after recycling five times the activity remained unchanged.

关键词： Alkyl Benzene sulfonic Acid Carbon-Based Solid Acid Catalyst Esterification

n-Dodecylbenzene sulfonic Acid (DBSA) as a Novel Brønsted Acid Catalyst for the Synthesis of Bis(indolyl)methanes and Bis(4-hydroxycoumarin-3-yl)methanes in Water

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Green and Sustainable Chemistry 2013年第2期3卷 56-60页

作者： Balu Pawar Vinod Shinde Atul Chaskar Department of Chemistry Sanghavi College of Engineering Nashik India Pacific Academy of Higher Education & Research University Udaipur India

n-Dodecylbenzene sulfonic acid (DBSA) as a novel, biodegradable, and efficient Br?nsted acid catalyst used for the reaction of indoles/4-hydroxy coumarin with aldehydes to obtain a bis(indolyl)methanes/bis(4-hydroxycoumarin-3-yl)methanes, respectively. The catalyst exhibited remarkable activity, and tolerated a wide variety of functional groups providing the desired bis(indolyl)methanes and bis(4-hydroxycoumarin-3-yl)methanes in good to excellent yield (70%-96%) in water.

关键词： n-Dodecylbenzene sulfonic Acid (DBSA) Indole Aldehyde Bis(indolyl)methane Bis(4-hydroxycoumarin-3-yl)methanes

新型磺酸功能化吡啶盐酸盐离子液体催化剂用于六氢喹啉合成(英文)

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催化学报 2013年第10期34卷 1936-1944页

作者： Ardeshir Khazaei Mohammad Ali Zolfigol Ahmad Reza Moosavi-Zare Javad Afsar Abdolkarim Zare Vahid Khakyzadeh Mohammad Hassan Beyzavi Faculty of Chemistry Bu-Ali Sina University Department of Chemistry University of Sayyed Jamaleddin Asadabadi Department of Chemistry Payame Noor University Institut für Chemie und Biochemie Freie Universitt Berlin

sulfonic acid functionalized pyridinium chloride [pyridine-SO3 H]Cl has been synthesized as a novel Brnsted acidic ionic liquid and characterized on the basis of its FT-IR,1H and 13C NMR,MS,ther-mogravimetry,and derivative thermogravimetry *** material has also been used as a highly efficient,homogeneous,and reusable catalyst for the preparation of hexahydroquinolines according to the one-pot multi-component condensation of arylaldehydes,dimedone(5,5-dimethylcyclohexane-1,3-dione),β-ketoesters,and ammonium acetate under solvent-free conditions.

关键词： Brnsted acidicionic liquid sulfonic acid functionalized pyridinium chloride [Pyridine-SO3 H]Cl Hexahydroquinoline Solvent-free synthesis

Beneficial effects of nutritional supplements on intestinal epithelial barrier functions in experimental colitis models in vivo

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World Journal of Gastroenterology 2019年第30期25卷 4181-4198页

作者： Hilda Vargas-Robles Karla Fabiola Castro-Ochoa Alí Francisco Citalán-Madrid Michael Schnoor Department for Molecular Biomedicine Cinvestav-IPN

Acute and chronic colitis affect a huge proportion of the population *** etiology of colitis cases can be manifold,and diet can significantly affect onset and outcome of *** many forms of acute colitis are easily treatable,chronic forms of colitis such as ulcerative colitis and Crohn’s disease(summarized as inflammatory bowel diseases)are multifactorial with poorly understood *** bowel diseases are characterized by exacerbated immune responses causing epithelial dysfunction and bacterial *** is no cure and therapies aim at reducing inflammation and restoring intestinal barrier ***,most drugs can have severe side *** in diet and inclusion of nutritional supplements have been extensively studied in cell culture and animal models,and some supplements have shown promising results in clinical *** of these nutritional supplements including vitamins,fatty acids and phytochemicals reduce oxidative stress and inflammation and have shown beneficial effects during experimental colitis in rodents induced by dextran sulphate sodium or 2,4,6-trinitrobenzene sulfonic acid,which remain the gold standard in pre-clinical colitis ***,we summarize the mechanisms through which such nutritional supplements contribute to epithelial barrier stabilization.

关键词： Colitis Dextran sulphate sodium 2,4,6-trinitrobenzene sulfonic acid Tight junction Adherens junction Phytochemicals Butyrate Vitamins Short chain fatty acids Micronutrients

A SUDY ON THE DISCHARGEABILITY OF REACTIVE BLACK DYES ON SILK FABRIC

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苏州大学学报（工科版） 1994年第S2期19卷 43-50页

作者： Wu Zuwang, Lin Li, Wang Guijuan,Yang Lingxian(Department of pine chemicals. Dalian University of Technology. China)

The relationship between the dischargeability and the struetures of reactive dyes havebeen *** dischargeable reactive black dyes for silk were designed and *** exhibit darker black *** wet fastness and excellent disch... 详细信息

关键词： sized fabric affinity shade hasbeen dyeing currently 回队 carboxylic sulfonic