Physical Chemistry Research最新文献_第5页

Surface Modification of BiVO4 Using (3-Aminopropyl) Triethoxysilane and Study of the Photocatalytic Properties and Process Optimization (3-氨基丙基)三乙氧基硅烷对BiVO4的表面改性、光催化性能及工艺优化研究

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2021.248702.1835

Ali Mostajabi Gonabad, R. Fazaeli, I. Naser, Hassan Pahlavan Zadeh

引用次数: 1

Using Iron-copper Nanocomposites Prepared by Peanut Vine Extracts for the Removal of Pefloxacin and Enrofloxacin from an Aqueous Solution: Isotherms, Kinetics, and Mechanism 花生藤提取物制备的铁-铜纳米复合物从水溶液中去除培氟沙星和恩诺沙星：等温、动力学和机理

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2021.246397.1825

Yuanyuan Niu, Xiuli Han, Chun Chang, Junying Chen

引用次数: 1

How Co-Precipitation Reaction Parameters Control the Characteristics and Features of Iron Oxide Nanoparticles 共沉淀反应参数如何控制氧化铁纳米颗粒的特性

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2020.251463.1843

Sina Nejabat, S. R. Siadat, Zepiur Tahmasian, Fateme Mirzajani, F. Fatemi, S. Hosseinkhani, M. Abedi

{"title":"How Co-Precipitation Reaction Parameters Control the Characteristics and Features of Iron Oxide Nanoparticles","authors":"Sina Nejabat, S. R. Siadat, Zepiur Tahmasian, Fateme Mirzajani, F. Fatemi, S. Hosseinkhani, M. Abedi","doi":"10.22036/PCR.2020.251463.1843","DOIUrl":"https://doi.org/10.22036/PCR.2020.251463.1843","url":null,"abstract":"The main purpose of this study was to find a simple reaction condition for reproducible synthesis of water-soluble superparamagnetic iron oxide nanoparticles (SPIONs) through the co-precipitation method. For this purpose, the effect of alkali solution, working atmosphere and final reaction temperature on type, size and magnetic properties of synthesized particles were examined. The results reveal that from two different tested alkali precipitants including ammonia and 1M NaOH, samples synthesized using ammonia demonstrate proper magnetic properties, while the latter agent leads to production of nonmagnetic brown suspensions in all reaction conditions. UV-Vis and XRD showed the typical magnetite pattern for samples synthesized using ammonia as the alkali precipitant. In addition, the results show that higher reaction temperatures lead to the production of smaller size black particles with lower oxidation level, better crystallization, and higher saturation magnetization. The optimal results were obtained when the ammonia was used as an alkali precipitant and the reaction temperature was set to 80 C under N2 atmosphere. Furthermore, particles which were made under the air condition at 80 C using 25% ammonia, showed satisfactory dimensional and magnetic properties. The simple reaction condition used in this study could be applicable for large scale synthesis of stable SPIONs.","PeriodicalId":20084,"journal":{"name":"Physical Chemistry Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47607315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Application of Agricultural Wastes as a Low-cost Adsorbent for Removal of Heavy Metals and Dyes from Wastewater: A Review Study 农业废弃物作为低成本吸附剂去除废水中重金属和染料的研究进展

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2021.256683.1852

A. Farhadi, Abolhasan Ameri, Sajad Tamjidi

{"title":"Application of Agricultural Wastes as a Low-cost Adsorbent for Removal of Heavy Metals and Dyes from Wastewater: A Review Study","authors":"A. Farhadi, Abolhasan Ameri, Sajad Tamjidi","doi":"10.22036/PCR.2021.256683.1852","DOIUrl":"https://doi.org/10.22036/PCR.2021.256683.1852","url":null,"abstract":"Water chemical pollution originates from a wide range of toxic derivatives, especially heavy metals and dyes. Its destructive effects on humans and the ecosystem have been considered as a serious environmental disaster. Therefore, there is a need to develop technologies to remove toxic pollutants from the environment. Adsorption is one of the most common methods of removing contaminants from wastewater among all the proposed methods. Adsorption is an optional method for industrial sewage treatment and a useful instrument for environmental protection. In recent years, numerous studies have been conducted to achieve low-cost, efficient, and environmentally friendly adsorbents. Among the low-cost adsorbents, the application of agricultural waste, as bio-adsorbent, is the most widely used for removing heavy metals and dyes. The advantages of using these compounds are low cost, good efficiency, minimal energy, simple maintenance and high adsorption capacity. This study deals with the risks, effects, and resources of manufacturers of heavy metal and dyes in addition to examination of agricultural wastes as low-cost adsorbents. Moreover, equilibrium, kinetic, and thermodynamic behaviors of the process of adsorption of heavy metal ions and dyes, using Langmuir and Freundlich adsorption isotherms, and Pseudo first and second-order kinetic models, and thermodynamic parameters were studied.","PeriodicalId":20084,"journal":{"name":"Physical Chemistry Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46968268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Relaxation Processes in a Dimethylimidazolium Chloride-methanol System 氯化二甲基咪唑甲醇体系中的弛豫过程

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2021.248349.1834

N. Atamas, D. Gavryushenko, M. Bakumenko, K. S. Yablochkova, M. Lazarenko

引用次数: 1

Triton™ X-100 Behaves Similarly to Tyrosine-Containing and Tryptophan-Free Proteins in UV-Vis Spectroscopy Triton™ X-100在UV-Vis光谱中的行为类似于含酪氨酸和不含色氨酸的蛋白质

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2021.241057.1797

H. Nedaei, A. Saboury

引用次数: 0

Measurement, Correlation and Prediction of LLE Data for the Ternary System Water + Lactic Acid + Diethyl Ether at 293.2 K 293.2 K水+乳酸+乙醚三元体系LLE数据的测定、相关性及预测

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2020.250264.1840

S. Shekarsaraee, A. Naimi, Bahareh Bussary

{"title":"Measurement, Correlation and Prediction of LLE Data for the Ternary System Water + Lactic Acid + Diethyl Ether at 293.2 K","authors":"S. Shekarsaraee, A. Naimi, Bahareh Bussary","doi":"10.22036/PCR.2020.250264.1840","DOIUrl":"https://doi.org/10.22036/PCR.2020.250264.1840","url":null,"abstract":"In this study, tie-line points and solubility data were experimentally measured for the ternary mixture (water + lactic acid + diethyl ether) at T = 293.2 K and atmospheric pressure. UNIFAC calculations predicted that lactic acid and diethyl ether do not form an azeotrope. The mass fractions of organic and aqueous layers were determined by acid-base and the Karl Fisher titrations. Cloud point method verified that the LLE behavior of the studied system is Type-1. The reliability of the tie-line points was demonstrated by the Othmer–Tobias and Hand plots. Thermodynamic correlation of tie-line data was done by NRTL model and the obtained binary interaction parameters were tested after validation. The experimental and correlated data had very good accordance (rmsd = 0.88 %). Extraction quality of diethyl ether was investigated using the calculation of distribution coefficients and separation factors over the immiscibility area. Separation factors decreased from 1.93 to 1.13 when aqueous mass fraction of lactic acid increased from 0.070 to 0.305. However, distribution coefficient increased from 0.07 to 0.12 in the same region. The study shows that the extraction of lactic acid is possible in all investigated feeds at 293.2 K.","PeriodicalId":20084,"journal":{"name":"Physical Chemistry Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47912091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Comprehensive Study on Synthesis Parameters of TiO2 Nanotube Arrays: The Effects on Morphology and Photocatalytic Degradation of Para-NitroPhenol TiO2纳米管阵列合成参数的综合研究——对形貌和光催化降解对硝基苯酚的影响

IF 1.2

Physical Chemistry Research Pub Date : 2021-06-01 DOI: 10.22036/PCR.2021.257129.1853

N. Rahimpour, M. Mollavali, F. Rashidi

引用次数: 0

Adsorption Behavior, Electronical and Thermodynamic Properties of Ornidazole Drug on C60 Fullerene Doped with Si, B and Al: A Quantum Mechanical Simulation 奥硝唑类药物在掺杂Si、B和Al的C60富勒烯上的吸附行为、电子和热力学性质：量子力学模拟

IF 1.2

Physical Chemistry Research Pub Date : 2021-03-01 DOI: 10.22036/PCR.2020.244279.1814

M. Fekri, Rahim Bazvand, Mousa Solymani, M. R. Mehr

引用次数: 1

Synthesis of KOH@CaO Catalyst by Sol-gel Method for Highly Efficient Biodiesel Production from Olive Oil 合成KOH@CaO溶胶-凝胶法催化高效生产橄榄油生物柴油

IF 1.2

Physical Chemistry Research Pub Date : 2021-03-01 DOI: 10.22036/PCR.2020.243603.1807

Eshaq Bazhdan, Sajad Tamjidi, P. Rouhi, H. Esmaeili

{"title":"Synthesis of KOH@CaO Catalyst by Sol-gel Method for Highly Efficient Biodiesel Production from Olive Oil","authors":"Eshaq Bazhdan, Sajad Tamjidi, P. Rouhi, H. Esmaeili","doi":"10.22036/PCR.2020.243603.1807","DOIUrl":"https://doi.org/10.22036/PCR.2020.243603.1807","url":null,"abstract":"In this research, biodiesel was produced from olive oil in the presence of KOH-impregnated CaO catalyst (CaO@KOH). To this end, CaO catalyst was produced using the sol-gel method. The percent composition of fatty acids (FAs) in olive oil was measured using gas chromatography (GC) analysis. Also, SEM and BET analyses were performed to evaluate the surface properties of the catalyst. The results indicated that the biodiesel conversion yield of 99±0.2% was obtained under the optimal conditions, i.e. an oil/methanol ratio of 1:15, a catalyst dosage of 1.5 wt.%, a reaction temperature of 65℃, and a reaction time of 4 h, which was the highest biodiesel yield ever achieved from olive oil. The reusability of the catalyst was further investigated through 8 successive cycles of biodiesel generation, and the results indicated that the reduction of biodiesel conversion yield was less than 2% after 4 cycles of reusing the catalyst, confirming the high potential of the aforementioned catalyst. Also, the production cost of the KOH/CaO catalyst was calculated to be 108.45 USD/Kg, which had a reasonable cost. Moreover, the physical properties of the produced biodiesel were within the standard range.","PeriodicalId":20084,"journal":{"name":"Physical Chemistry Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42583272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3