Benjamin Raj, Kishor Kumar Sahu, M. Mohapatra, A. K. Padhy
{"title":"N-doped ZnO: Efficient Photocatalyst for Decomposition of Methylene Blue","authors":"Benjamin Raj, Kishor Kumar Sahu, M. Mohapatra, A. K. Padhy","doi":"10.2174/2405520413666200224113901","DOIUrl":"https://doi.org/10.2174/2405520413666200224113901","url":null,"abstract":"\u0000\u0000Herein, we have synthesized nitrogen doped zinc oxide (N-ZnO) by\u0000using imidazole derivative as an organic precursor.\u0000\u0000\u0000\u0000The metal oxide nanoparticles were characterized by scanning electron microscope\u0000(SEM), and UV-visible spectroscopic techniques. The surface area and pore size distribution\u0000were also measured by the BET surface area analyzer. The enhanced surface area\u0000reveals that the synthesized materials have better active sites for the amputation of organic\u0000dyes.\u0000\u0000\u0000\u0000The photocatalytic degradation of methylene blue was chosen to\u0000evaluate the photocatalytic activity of N-ZnO nanoparticles, with results indicating that the\u0000material exhibited higher activity towards the degradation of methylene blue.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42833692","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}
{"title":"The Opportunities and Challenges of Preformed Particle Gel in Enhanced Oil Recovery","authors":"I. Akbar, Zhou Hongtao","doi":"10.2174/2405520413666200313130911","DOIUrl":"https://doi.org/10.2174/2405520413666200313130911","url":null,"abstract":"\u0000\u0000Enhanced Oil Recovery (EOR), is a technique that has been used to recover the\u0000remaining oil from the reservoirs after primary and secondary recovery methods. Some reservoirs\u0000are very complex and require advanced EOR techniques that containing new materials\u0000and additives in order to produce maximum oil in economic and environmentally friendly\u0000manners. Because of EOR techniques, in this work previous and current challenges have\u0000been discussed, and suggested some future opportunities. This work comprises the key factors,\u0000such as; transport of Preformed Particle Gels (PPGs), Surface wettability and conformance\u0000control that affect the efficiency of PPGs. The conduits, fractures, fracture-like features\u0000and high permeability streaks are the big challenges for EOR, as they may cause early water\u0000breakthrough and undesirable water channeling. Hence, the use of PPGs is one of the exclusive\u0000commercial gel inventions, which not only increases the oil production but also decreases\u0000the water cut during the oil production. Moreover, different studies regarding PPG, surfactants,\u0000and Silica nanoparticle applications, such as the effect of salinity, particle size, swelling\u0000ratio, gel strength, wettability, and adsorption were also discussed. Future work is required\u0000in order to overcome the conformance problems and increase the oil recovery.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45288629","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}
Zhengnan Sun, Jing Zhang, G. Jing, Yang Liu, Shuo Liu
{"title":"Research Progress and Discussion of Waxy Crude Pour Point Depressants: A Mini Review","authors":"Zhengnan Sun, Jing Zhang, G. Jing, Yang Liu, Shuo Liu","doi":"10.2174/2405520413666200316162139","DOIUrl":"https://doi.org/10.2174/2405520413666200316162139","url":null,"abstract":"\u0000\u0000The crude oils exploited in oilfields are mainly high-wax crude oils. Paraffins\u0000precipitate, crystallize, and form a three-dimensional network structure, when the temperature\u0000falls below the Wax Appearance Temperature (WAT), which decreases crude oil fluidity.\u0000This poses huge challenges to oil exploitation and transportation, as well as cost control.\u0000To date, the addition of chemical pour point depressants has been a convenient and economical\u0000method to improve low-temperature fluidity in crude oils. This article reviews the types\u0000of pour point depressants of crude oil and their performance mechanisms, and introduces the\u0000main research methods and progress made in the study of the performance mechanisms of\u0000pour point depressants in waxy crude oils. Finally, the development direction of pour point\u0000depressants is prospected.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45844035","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}
Željka Petrović, Jozefina Katić, A. Šarić, I. Despotović, Nives Matijaković, D. Kralj, M. Leskovac, M. Petković
{"title":"Influence of Biocompatible Coating on Titanium Surface Characteristics","authors":"Željka Petrović, Jozefina Katić, A. Šarić, I. Despotović, Nives Matijaković, D. Kralj, M. Leskovac, M. Petković","doi":"10.2174/2352094910999200407095723","DOIUrl":"https://doi.org/10.2174/2352094910999200407095723","url":null,"abstract":"\u0000\u0000 Nowadays investigations in the field of dental implants engineering are focused\u0000on bioactivity and osseointegration properties.\u0000\u0000\u0000\u0000In this study, the oxide-covered titanium was functionalized by vitamin D3 molecules via a\u0000simple self-assembly method with the aim to design more corrosion-resistant and at the same time\u0000more bioactive surface.\u0000\u0000\u0000\u0000Surface properties of the D3-coated titanium were examined by scanning electron microscopy,\u0000attenuated total reflectance Fourier transform infrared spectroscopy, and contact angle measurements,\u0000while long-term corrosion stability during immersion in an artificial saliva solution was\u0000investigated in situ by electrochemical impedance spectroscopy.\u0000\u0000\u0000\u0000Results of all techniques confirmed a successful formation of the vitamin D3 layer on the\u0000oxide-covered titanium. Besides very good corrosion resistivity (~5 MΩ cm2), the D3-modified titanium\u0000surface induced spontaneous formation of biocompatible bone-like calcium phosphates (CaP).\u0000\u0000\u0000\u0000 Observed in vitro CaP-forming ability as a result of D3-modified titanium/artificial saliva\u0000interactions could serve as a promising predictor of in vivo bioactivity of implant materials.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75642654","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}
{"title":"Stress Corrosion Cracking of Structural Nuclear Materials: Influencing Factors and Materials Selection","authors":"R. A. Antunes, M. C. L. de Oliveira","doi":"10.2174/2352094909666191030111523","DOIUrl":"https://doi.org/10.2174/2352094909666191030111523","url":null,"abstract":"\u0000\u0000Stress Corrosion Cracking (SCC) plays a central role in the development of improved\u0000structural nuclear materials. Complex interactions between microstructure, alloy composition, manufacturing\u0000and environmental factors make the understanding of this phenomenon difficult. This\u0000work aimed at reviewing the scientific literature on the SCC behavior of structural nuclear materials\u0000in order to identify the main factors that govern this phenomenon. Additionally, the interaction between\u0000these factors and materials selection is discussed in order to provide a comprehensive basis\u0000for the successful design of metallic materials with improved resistance to SCC.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":"122 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82472800","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}