Journal of the chemical society of pakistan最新文献

Photodegradation of Norfloxacin on Ni0.5Cd0.5S/g-C3N4 Composites in Water Ni0.5Cd0.5S/g-C3N4复合材料在水中光降解诺氟沙星的研究

4区化学

Journal of the chemical society of pakistan Pub Date : 2025-01-01 DOI: 10.52568/001643/jcsp/47.02.2025

Q. Chen, Guoxiang Lai, Zhijun Wu, Xia Chen, Jinhui Zhang Jinhui Zhang, Shibiao Wu

{"title":"Photodegradation of Norfloxacin on Ni0.5Cd0.5S/g-C3N4 Composites in Water","authors":"Q. Chen, Guoxiang Lai, Zhijun Wu, Xia Chen, Jinhui Zhang Jinhui Zhang, Shibiao Wu","doi":"10.52568/001643/jcsp/47.02.2025","DOIUrl":"https://doi.org/10.52568/001643/jcsp/47.02.2025","url":null,"abstract":"Widely used in hospital and animal farming, the large amounts of norfloxacin (NORF) were discharged into the water environment which caused severe pollution problems. Photocatalysis technology can decompose, mineralize most organic compounds, including NORF. In this paper, Ni0.5Cd0.5S(NCS), g-C3N4(CN) and their composites were prepared as photocatalysts. The composites were characterized by SEM, energy-disperse X-ray spectroscopy (EDS) and XRD. It was showed that NORF in water can be effectively removed by NCS/CN composites in visible light. The experimental results proved that the composites have better photocatalytic degradation performance than NCS or CN alone. The best photocatalysis reaction condition of pH was 7. There were different performances on the degradation of NORF when the interfere anions, NO3ˉ, Cˉ and HCO3ˉwere mixed in the reactive system. HCO3ˉand Clˉ were the inhibitory substances on the photocatalysis reaction, and NO3ˉ slightly prompted the reaction. In addition, the main active substances produced in the reaction were superoxide radicals (•O2ˉ) and holes (h+) which were confirmed by adding different free radical quenchants in NORF photodegradation reaction system.","PeriodicalId":17253,"journal":{"name":"Journal of the chemical society of pakistan","volume":"47 2","pages":"193-193"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jcsp.org.pk/PublishedVersion/b8584bca-db52-41c0-a424-386a3b1d6eadManuscript no 08, Final Galley Proof of 12812 (Xia Chen).pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147899805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Study of a Novel Visualized Iron Ion Probe 一种新型可视化铁离子探针的合成与研究

4区化学

Journal of the chemical society of pakistan Pub Date : 2025-01-01 DOI: 10.52568/001677/jcsp/47.04.2025

Rong Jiang, Shuiqing Li, Jingwen Zhang Jingwen Zhang, Hengchang Bi, Cairong Li

引用次数: 0

Extraction of Phenolic Compounds from Wild Hemp Stem Using Superheated Water 过热水萃取野生大麻茎中酚类化合物的研究

4区化学

Journal of the chemical society of pakistan Pub Date : 2025-01-01 DOI: 10.52568/001624/jcsp/47.01.2025

Jianhui Zhang, Xuexue Pan, Jin Chen, Valery Wilfried Nguemdjo Chimeze

{"title":"Extraction of Phenolic Compounds from Wild Hemp Stem Using Superheated Water","authors":"Jianhui Zhang, Xuexue Pan, Jin Chen, Valery Wilfried Nguemdjo Chimeze","doi":"10.52568/001624/jcsp/47.01.2025","DOIUrl":"https://doi.org/10.52568/001624/jcsp/47.01.2025","url":null,"abstract":"The innovation of this study consists of using superheat water to extract phenols from Wild hemp stem leaves. First, the effects of three factors were explored on the yield of phenols, and the results showed that these three factors had a dual impact. Then, based on single-factor experiment results, the most significant yield was achieved by the implementation of the three-factor and three-level Box-Behnken design, and it was 84.78and#177;1.24 mg of gallic acid equivalents under optimal conditions (197 ℃, 43 min, 21 mL/g). In addition, quinic and rosmarinic acids were the main components of phenols by liquid chromatography-mass spectrometry analysis. The outcomes of three distinct extraction procedures—ethanol, hot water, and superheat water—were ultimately evaluated. Both extractsand#39; phenolic yield and antioxidant activity (scavenging capacity, ferric reducing power) by superheat water extraction was higher than by water extraction and ethanol extraction. Therefore, extracting phenols from Wild hemp stems by superheating water is feasible","PeriodicalId":17253,"journal":{"name":"Journal of the chemical society of pakistan","volume":"47 1","pages":"07-07"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jcsp.org.pk/PublishedVersion/5469e588-b42e-44b9-9511-244c796de5cf02, Final Galley Proof of 12826 (Xuexue Pan).pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Fabrication of Cobalt-Doped Lignin Base Carbon Nanotubes Composite Material for Energy Storage Applications 用于储能的钴掺杂木质素基碳纳米管复合材料的制备

4区化学

Journal of the chemical society of pakistan Pub Date : 2025-01-01 DOI: 10.52568/001683/jcsp/47.04.2025

Zaib Ullah Khan, Jinghua Jiang, Zahid Ullah, Muhammad Yasir Khan, Asifa Kusar

{"title":"Fabrication of Cobalt-Doped Lignin Base Carbon Nanotubes Composite Material for Energy Storage Applications","authors":"Zaib Ullah Khan, Jinghua Jiang, Zahid Ullah, Muhammad Yasir Khan, Asifa Kusar","doi":"10.52568/001683/jcsp/47.04.2025","DOIUrl":"https://doi.org/10.52568/001683/jcsp/47.04.2025","url":null,"abstract":"The development of high-performance, sustainable, and economical electrodes with superior capacity and cyclic stability is crucial for the advancement of energy storage devices. Carbon nanotubes (CNTs) has garnered considerable interest as a potential electrode material for energy storage applications, owing to its high capacity, natural abundance, cost-effectiveness, and eco-friendliness. In the present study, lignin was combined with CNTs to synthesize a Co-CNTs/lignin composite electrode material via hydrothermal method, for enhance energy storage performance. The structure and surface morphology of the synthesized Co-CNTs/lignin composite is characterized by X-ray diffraction (XRD), RAMAN spectroscopy, X-ray Photoelectron Spectroscopy (XPS), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET). The thermal stability of the composite sample was also studied by thermogravimetric analysis (TGA). The Co-CNTs/lignin composite exhibit enhanced electrochemical kinetics and electrical conductivity compared to pristine Co-CNTs and Co-lignin. The Co-CNTs/lignin composite material has shown remarkable electrochemical performance, it exhibits high specific capacitance, an energy density, and a power density at a low current density. The composite material showed outstanding electrochemical stability, maintaining 98% of its original capacitance and exhibiting an impressive coulombic efficiency of 81% after 1000 charge-discharge cycles at a current density of 5 A g−1. The obtained data indicated that the composite materials exhibit superior performance in energy storage devices.","PeriodicalId":17253,"journal":{"name":"Journal of the chemical society of pakistan","volume":"47 4","pages":"313-313"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jcsp.org.pk/PublishedVersion/1c5bb776-afe3-405a-9bb4-8c63869351ecManuscript no 03, Final Galley Proof of 12846 (Jinghua Jiang).pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147895959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Bleaching Conditions in Refining Process of Camellia Oil with Response Surface Method 响应面法优化茶油精制过程中漂白条件

4区化学

Journal of the chemical society of pakistan Pub Date : 2025-01-01 DOI: 10.52568/001637/jcsp/47.02.2025

Shuai Huang Shuai Huang, Wenbin Jin, Dan Huang, Lina Yu

{"title":"Optimization of Bleaching Conditions in Refining Process of Camellia Oil with Response Surface Method","authors":"Shuai Huang Shuai Huang, Wenbin Jin, Dan Huang, Lina Yu","doi":"10.52568/001637/jcsp/47.02.2025","DOIUrl":"https://doi.org/10.52568/001637/jcsp/47.02.2025","url":null,"abstract":"The objective of this study was to optimize bleaching conditions of camellia oil by minimizing the lovibond yellow color and maximizing the polyphenol content. The experiments of bleaching were conducted using RSM with Box-Behnken design for the camellia oil. RSM was used to investigate the effects of active clay amount (2-6 wt%), heating temperature (30-60 oC) and stirring speed (60-140 rpm) on lovibond yellow color and polyphenol content. An analysis of variance (ANOVA) revealed that active clay amount, heating temperature and stirring speed significantly effect on lovibond yellow color and polyphenol content (p andlt; .05), while the quadratic (X22, X32) and interaction effect of X1X2, X2X3 hardly influence the polyphenol content (p andgt; .05). In addition, the optimized conditions were active clay amount of 4 g/hg, the heating temperature of 40 oC, and the stirring speed of 60 rpm. Under these conditions, the experimental lovibond yellow color and polyphenol content were 8.5 (133.4mm) and 26.74 mg/kg respectively, which were well matched with the predictive values.","PeriodicalId":17253,"journal":{"name":"Journal of the chemical society of pakistan","volume":"47 2","pages":"147-147"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jcsp.org.pk/PublishedVersion/49c36124-29f9-4fcc-a845-7d7bb4969f0dManuscript no 04, Final Galley Proof of 12841 (Jianwu Yu).pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147921763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Synthesis, Crystal Structure and Antifungal Activity of 1-(3,3 -Dimethyl-2-oxobutyl)-N-phenyl-1H-1,2,4-triazole-3-carboxamide 1-（3,3 -二甲基-2-氧丁基）- n -苯基- 1h -1,2,4-三唑-3-羧酰胺的合成、晶体结构及抑菌活性

4区化学

Journal of the chemical society of pakistan Pub Date : 2024-01-01 DOI: 10.52568/001556/jcsp/46.05.2024

Guang Rong Cai Guang Rong Cai, Zhi Fang Li Zhi Fang Li, Yan Gong, Xue Dong and Wen Su Cai Xue Dong and Wen Su Cai

{"title":"Synthesis, Crystal Structure and Antifungal Activity of 1-(3,3 -Dimethyl-2-oxobutyl)-N-phenyl-1H-1,2,4-triazole-3-carboxamide","authors":"Guang Rong Cai Guang Rong Cai, Zhi Fang Li Zhi Fang Li, Yan Gong, Xue Dong and Wen Su Cai Xue Dong and Wen Su Cai","doi":"10.52568/001556/jcsp/46.05.2024","DOIUrl":"https://doi.org/10.52568/001556/jcsp/46.05.2024","url":null,"abstract":"Fungicides play a vital role in protecting crops from fungal damage.However, fungicide re-sistance is one of the most important issues in modern agriculture. Hence, it is very neces-sary to develop new fungicides constinuously.Triazole compounds have received consider-able interest in agricultural chemistry due to a novel action mode, extremely high activity against phytopathogenic fungi, low acute toxicity to mammals, and environmentally benign characteristics. The title compound 1-(3,3-dimethyl -2-oxobutyl)-N-phenyl-1H-1,2,4-triazole-3-carboxamide 5, synthesized using methyl 1H-1,2,4 -triazole-3-carboxylate 1 as the start material, was successfully obtained via multi-ple synthesis route and finally characterized by 1H NMR,13C NMR, HRMS and single-crystal X-ray diffraction. Compound 5 (C15H18N4O2, Mr = 287.1500) belongs to the orthorhombic system, space group Pn21a, with a = 14.49451(11)and#197;, b = 20.34686(18)and#197;, c = 10.17021(9)and#197;, V =2999.38(4) and#197;3, Z = 8, Dc= 1.268 g/cm3, T = 293.55(14) K, μ (CuKα) = 0.710 mm-1, F (000) =1216.0, the final R=0.0448, and wR = 0.1260 with Iandgt;=2σ (I). Fur-thermore, the results from biological assays indicated that the title compound exihibited a similar antifungal activity（EC 50 =8.98 mg. L-1）compared to triadimefon (EC50=5.6 mg.L-1)against G. cingulatal. And had different degrees of weak activity against other phy-topathogenic fungi, including A. solani, S. sclerotiorum, G. saubinetii and T. cucumeris. Po-tentially, the result lay the foundation for the development of novel fungicides","PeriodicalId":17253,"journal":{"name":"Journal of the chemical society of pakistan","volume":"46 5","pages":"485-485"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jcsp.org.pk/PublishedVersion/b48a36be-c7b5-4203-a73b-8f25371dd624Manuscript no 8, Final Galley Proof of 12753 (Guang Rong Cai).pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147904082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Activation of C(SP3)–H Bonds Promoted Oxidation of Sulfides by O2 Under Catalyst-Free Conditions C(SP3) -H键的活化促进了无催化剂条件下硫化物的氧化

4区化学

Journal of the chemical society of pakistan Pub Date : 2024-01-01 DOI: 10.52568/001462/jcsp/46.03.2024

Zufeng Wang Zufeng Wang, Hongyi Wang Hongyi Wang, Zhiying Zhao Zhiying Zhao, Yu Zhu, Youer Deng Youer Deng, Xiaolong Li Xiaolong Li, Dan Zeng Dan Zeng, Yachun Liu Yachun Liu, Chao Zhang and Zaihui Fu Chao Zhang and Zaihui Fu

{"title":"Activation of C(SP3)–H Bonds Promoted Oxidation of Sulfides by O2 Under Catalyst-Free Conditions","authors":"Zufeng Wang Zufeng Wang, Hongyi Wang Hongyi Wang, Zhiying Zhao Zhiying Zhao, Yu Zhu, Youer Deng Youer Deng, Xiaolong Li Xiaolong Li, Dan Zeng Dan Zeng, Yachun Liu Yachun Liu, Chao Zhang and Zaihui Fu Chao Zhang and Zaihui Fu","doi":"10.52568/001462/jcsp/46.03.2024","DOIUrl":"https://doi.org/10.52568/001462/jcsp/46.03.2024","url":null,"abstract":"Oxidation of organic sulfides is a significant reaction due to its application in many fields. Herein, we have developed a novel catalyst-free oxidation of organic sulfides by O2 under relatively mild conditions. The choice of the procedure was based on the well-acknowledged reactivity of the active C(sp3)-H bond of organic compounds to form the corresponding alkyl carbon free radicals (Rand#183;) in the presence of O2. The results showed that hydrocarbons such as tetrahydronaphthalene (THN) and cumene possessing the active C(sp3)-H bonds due to their lower bond dissociation energy (BDE), as a solvent, markedly promoted this catalyst-free sulfoxidation. It has been proved that reactive oxygen species (ROS) in this reaction are alkyl-peroxide radicals that are produced from Rand#183;, which is derived from the homolytic cleavage of the active C(sp3)-H bond with the help of heating and dioxygen, and further its activation of molecular oxygen. On this basis, combined with the DFT calculation of the activation energy of two reaction pathways, a possible reaction mechanism is proposed. The work provided a green synthesis approach of sulfoxide and sulfone compounds, and a scientific basis for a green process of ultra-deep desulfurization of fuel oils.","PeriodicalId":17253,"journal":{"name":"Journal of the chemical society of pakistan","volume":"46 3","pages":"300-300"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jcsp.org.pk/PublishedVersion/7a1f8799-d7ab-45d3-84b4-2e1c0afc774cManuscript no 8, Final Galley Proof of 12691 (Yachun Liu)_compressed.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147887766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Adsorption of Fluoride from Aqueous Solution by Zirconium-Modified Artificial Zeolites: Kinetics, Thermodynamics and Mechanism 锆改性人工沸石对水溶液中氟的吸附：动力学、热力学和机理

4区化学

Journal of the chemical society of pakistan Pub Date : 2024-01-01 DOI: 10.52568/001434/jcsp/46.02.2024

Zanen Wu Zanen Wu, Xia Chen and Shibiao Wu Xia Chen and Shibiao Wu

{"title":"Adsorption of Fluoride from Aqueous Solution by Zirconium-Modified Artificial Zeolites: Kinetics, Thermodynamics and Mechanism","authors":"Zanen Wu Zanen Wu, Xia Chen and Shibiao Wu Xia Chen and Shibiao Wu","doi":"10.52568/001434/jcsp/46.02.2024","DOIUrl":"https://doi.org/10.52568/001434/jcsp/46.02.2024","url":null,"abstract":"Artificial zeolites (AZ) and AZ modified with zirconium cation (AZZ) were fabricated in this work. AZ and AZZ, which were characterized by SEM and XRD, showed that AZZ was the composite of AZ and ZrO2. The adsorption kinetics and isotherms of AZ and AZZ towards fluoride removal in water were consistent with the Langmuir and pseudo-second-order models, respectively. AZZ had better fluoride adsorption capacity than AZ. The maximal adsorption capacity of fluoride onto AZZ reached up to 128.2 mg/g. Moreover, the thermodynamic studies illustrated that the adsorption procedure was spontaneous and endothermic. The effect of solution pH on AZZ fluoride adsorption was also investigated, and the results showed that the more acidic the fluoride solution, the better the fluoride adsorption capacity. After five cycles of regeneration, the adsorption capacity of AZZ was maintained at 78 %. Based on zeta potential measurements, this work proposed that the electrostatic attraction between AZZ and fluoride ions (F-) should be the mechanism for F- adsorption onto AZZ in water.","PeriodicalId":17253,"journal":{"name":"Journal of the chemical society of pakistan","volume":"46 2","pages":"121-121"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jcsp.org.pk/PublishedVersion/ae42a9f3-b2df-4598-8516-4a90dde6f022Manuscript no 1, Final Galley Proof of 12761 (Shibiao Wu)_compressed.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147912410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Crystal Structure, Theoretical Analyses and Thermodynamic Properties of a Ni(II) Complex Based on ONO Donor Tridentate Acylhydrazone 基于ONO供体三齿酰基腙的Ni(II)配合物的晶体结构、理论分析和热力学性质

IF 0.7 4区化学

Journal of the chemical society of pakistan Pub Date : 2023-01-01 DOI: 10.52568/001191/jcsp/45.01.2023

Fengying Chen Fengying Chen, YouYing Di and Guochun Zhang YouYing Di and Guochun Zhang

引用次数: 0

Photocatalytic System using Iron-Based Catalysts: Effect of External Ions on CO2-to-CO Conversion 铁基催化剂光催化体系:外离子对CO2-to-CO转化的影响

IF 0.7 4区化学

Journal of the chemical society of pakistan Pub Date : 2023-01-01 DOI: 10.52568/001199/jcsp/45.01.2023

X. B. L. X B Lu, N. X. L. N X Li, T. W. J. T W Jie, Q. Q. X. A. Z. Y. Q Q Xu and Z Yang

引用次数: 0