Onesmus Mulwa Munyao, J. Thiong’o, J. Wachira, D. K. Mutitu, M. Romano, Genson Murithi
{"title":"Use of Bacillus Species Bacteria in Protecting the Concrete Structures from Sulphate Attack- A Review","authors":"Onesmus Mulwa Munyao, J. Thiong’o, J. Wachira, D. K. Mutitu, M. Romano, Genson Murithi","doi":"10.33945/sami/jcr.2019.4.5","DOIUrl":"https://doi.org/10.33945/sami/jcr.2019.4.5","url":null,"abstract":"Deleterious ions in the environment such as sulfates may degrade the concrete structures. The interaction of cement hydration products with these destructive agents contributes to severe durability threat of the concrete structures. External sulfate attack is well-known for causing permanent changes in concrete. Microbially induced calcium carbonate (MICP) precipitation has been considered as a unique technique in enhancing the durability properties of concrete. This review paper discusses the possibility of bio-deposition from MICP process as a barrier in microbial treated concrete against the penetration of sulfate ions in a sulfate- rich environment. The effect associated with chemical and physical sulfate attack is discussed in line with the mechanical properties of cement such as compressive strength whereas microscopic evaluation is based on scanning electron microscopy studies. The shortcomings associated with sulfate ions in cement-based materials and the positive effects of incorporating bacillus species bacteria in sulfate rich areas is discussed. This review found that, MICP can significantly reduce the ingress of sulfate ions in cement-based materials, which results in improving the mechanical properties of the cement mortar/concrete.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"1‐40 S1‐139","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120833632","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":"Overview of Borophene as a Potential Candidate in 2D Materials Science for the Energy Applications","authors":"N. Powar, R. Pandav","doi":"10.33945/sami/jcr.2019.4.3","DOIUrl":"https://doi.org/10.33945/sami/jcr.2019.4.3","url":null,"abstract":"Energy problem is one of the serious concerns in modern society; therefore, we have to take hastily an effective action. Hence, researchers are looking for some attractive materials with low-cost, lightweight, and environmentally effective. Recently, 2D materials have taken notable recognition in the field of materials science for multiple energy application, because of its unique electronic and optical properties; and borophene is one of the 2D material which is commendatories than graphene. However, it has not much experimentally explored yet. This review discusses the synthesis process of borophene and discussed energy-related application such as energy storage, optoelectronic, photocatalytic activity, and hydrogen storage. Moreover, this work provides a summary of each application that could help to understand the importance of borophene materials for energy applications.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128734093","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":"Comparative Analysis of Methods Employed in Rhodium Recovery","authors":"T. Shyam, Hazel Dhruve","doi":"10.33945/sami/jcr.2019.4.4","DOIUrl":"https://doi.org/10.33945/sami/jcr.2019.4.4","url":null,"abstract":"Rhodium is a rare and highly expensive metal with widespread and diverse industrial applications. This makes rhodium recovery and recycling extremely important. Various processes and methods have been developed for rhodium recovery which are very specific to the nature of the application of rhodium. This research study aims at providing a brief yet holistic, classified overview of the many methods that are being employed over the last few decades for rhodium recovery at both laboratory and industrial scale. Specifically, the focus is on the processes employed for recovery of rhodium from waste water, radioactive waste, catalysts, scrap and by leaching with the objective of facilitating a better understanding of such methods. This research study enables researchers to better understand the various processes employed in rhodium recovery.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114259271","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}
Trupti Pagar, S. Ghotekar, Khanderao Pagar, S. Pansambal, Rajeshwari Oza
{"title":"A review on bio-synthesized Co3O4 nanoparticles using plant extracts and their diverse applications","authors":"Trupti Pagar, S. Ghotekar, Khanderao Pagar, S. Pansambal, Rajeshwari Oza","doi":"10.33945/sami/jcr.2019.4.2","DOIUrl":"https://doi.org/10.33945/sami/jcr.2019.4.2","url":null,"abstract":"Developing a rapid, reliable and eco-accommodating methodology for the synthesis of metal/metal oxide nanoparticles (NPs) is an important step in the area of nanotechnology. Cobalt oxide nanoparticles (Co3O4 NPs) have been widely studied due to their potential applications including, antibacterial, antifungal, electrochromic sensors, heterogeneous catalysis, and energy storage devices. Due to the large rate of perilous chemicals employed in the physical and chemical production of these NPs, green methods employing the use of plants, fungus, algae, and bacteria have been adopted. However, plant-mediated synthesis of metal NPs has been developed as a substitute to defeat the restrictions of conventional synthesis approaches such as physical and chemical methods. Biomolecules, such as tannins, saponins, proteins, amino acids, steroids, enzymes, flavonoids, and vitamins from several plant extracts have been used as a stabilizing and reducing agents for the synthesis of Co3O4 NPs. Recently, several attempts were made to develop plant-mediated synthesis methods to produce stable, cost-effective, and eco-accommodating Co3O4 NPs. In this review, a comprehensive study was conducted on synthesis, characterization, and various applications of Co3O4 NPs produced using various plant sources.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131497568","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":"Nessacities of Studying HSE Management Position and Role in Iran Oil Industry","authors":"Dana Mohammadnazar, A. Samimi","doi":"10.33945/SAMI/JCR.2019.4.1","DOIUrl":"https://doi.org/10.33945/SAMI/JCR.2019.4.1","url":null,"abstract":"Today, diseases and accidents on one of the social concerns of workers and those involved in occupational safety and health issues has become. In addition to the general culture of health and safety factors related to non-compliance with relevant laws and regulations and lack of education can be a lack of planning and attention to occupational health and safety of workers in most industries, including the reasons for the high rate of accidents and work-related disease outlined. Due to the importance of the health of workers in all countries need to manage to achieve a coherent approach to improve working conditions, more than ever appears. Safety position in the heart of the organization's current management and its elements such as organizational structure, planning activities, responsibilities specified in the methods of work according to the resources available to maintain the policy of health, Safety and the environment is working. Maybe HSE management concept is abet complex in first glance. But this is simple concept and it has close relationship with us and we understand simple city. Maybe hygienic, security and environment concepts and not simple for you. HSE management increase hygienic awareness, security and environment level and decrease dangerous factors and event occurrence and it is possible with workspace security. HSE position is in the organization current heart and elements like organizational structures, activities planning, determine responsibility in methods for doing and try for hygienic way maintain, security and environment. In this paper discussed HSE significance in Iran oil industry.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131630026","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}
A. Nikam, Trupti Pagar, S. Ghotekar, Khanderao Pagar, S. Pansambal
{"title":"A Review on Plant Extract Mediated Green Synthesis of Zirconia Nanoparticles and Their Miscellaneous Applications","authors":"A. Nikam, Trupti Pagar, S. Ghotekar, Khanderao Pagar, S. Pansambal","doi":"10.33945/SAMI/JCR.2019.3.1","DOIUrl":"https://doi.org/10.33945/SAMI/JCR.2019.3.1","url":null,"abstract":"Development of reliable and environmentally gracious routes for the fabrication of metal oxide nanoparticles is a crucial step in nano-biotechnology. Among the all zirconia nanoparticles (ZrO2 NPs) draws more attention due to its significant biocompatible, electrical, mechanical, and optical properties. Many natural biomolecules in plant extracts such as alkaloids, amino acids, enzymes, proteins, polysaccharides, polyphenols, steroid, and vitamins could be involved in bioreduction, formation, and stabilization of ZrO2 NPs. In the last decade, numerous efforts were made to develop ecofriendly methods of synthesis to avoid the hazardous byproducts. In this review, green synthesis of ZrO2 NPs, their characterization techniques, and miscellaneous applications were discussed.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134364367","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":"Reviewing of Synthesis and Computational Studies of Pyrazolo Pyrimidine Derivatives","authors":"H. Mohamed, S. Ahmed","doi":"10.33945/SAMI/JCR.2019.3.3","DOIUrl":"https://doi.org/10.33945/SAMI/JCR.2019.3.3","url":null,"abstract":"In this review we synthesized and conducted a computational studies on Pyrazolo pyrimidine’s derivatives that were carried out through density functional theory level utilizing HF/6−311+G**and B3LYP/6−311+G**. Charge transfer occured through molecule was shown by the calculation of HOMO and LUMO energies. The electric dipole moment values (l) of the molecule were counted calculations of DFT. Some geometrical and structural parameters such as total energies (E), relative energies (DE), (bond length in A, angles in degree), energy gap, relative Gibbs free energy, dipole moment, and molecular electrostatic potentials (MEP) were studied.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115644453","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":"Review of Therapeutic Applications of Nanotechnology in Medicine Field and its Side Effects","authors":"Wanisa Abdussalam-Mohammed","doi":"10.33945/sami/jcr.2019.3.5","DOIUrl":"https://doi.org/10.33945/sami/jcr.2019.3.5","url":null,"abstract":"Nanotechnology is the new field of technological innovation on their application in human biology and medicine. On the other hand, there is an important concern about the potential health and environmental risks, due to exposure to human body of nanoparticles. These nanoparticles led to the appearance in the scientific disciplines such as nanotoxicology and nanomedicine. Nanotoxicology is the study toxicity effects of nanoparticles on human health as well as environment. Nano-particles have been developed for beneficial studies with applications in medical field and devices. Also, nanomedicines have been applied to the sector of molecular biology, tissue culture, bio-materials, genetic engineering, bio and bio-imaging sensors. Actually, nanotechnologies have followed healthcare improvements including potentially revolutionary treatments for cancer, critical diseases and also drug improvements with reduction of side effect. With all these descriptions, the extent of potential impact on human health is still a major concern due to lack of reliable toxicity data of nanoparticles. The main purpose of present literature is providing of better understanding on nanobiotechnology principles and its applications in biomedicine have been discussed as well as to their side effects.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128594996","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 Application of Arylglyoxals in the Synthesis of Pyrrolo[2,3-d]pyrimidines via Multicomponent Reactions","authors":"Ramin Javahershenas, J. Khalafy, R. Prager","doi":"10.33945/SAMI/JCR.2019.3.4","DOIUrl":"https://doi.org/10.33945/SAMI/JCR.2019.3.4","url":null,"abstract":"This review provides an overview of the recent literature on application of arylglyoxals the synthesis of pyrrolo[2,3-d]pyrimidines via multicomponent reactions in the period of 2008–2018. 1,2-Dicarbonyl compounds are attractive precursors for synthesis of various heterocyclic compounds, and arylglyoxals are frequently applied in synthesis of various organic compounds, and in particular of pyrrolo[2,3-d]pyrimidines derivatives, which are important due to their biological and pharmaceutical activities.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116816604","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}
A. Samimi, S. Zarinabadi, A. S. Kootenaei, A. Azimi, M. Mirzaei
{"title":"Study of Operational Conditions in Octanizer and Hydro-Treating Units in Oil Refinery Company","authors":"A. Samimi, S. Zarinabadi, A. S. Kootenaei, A. Azimi, M. Mirzaei","doi":"10.33945/SAMI/JCR.2019.3.2","DOIUrl":"https://doi.org/10.33945/SAMI/JCR.2019.3.2","url":null,"abstract":"The catalytic conversion of naphtha is a refinery process in which heavy naphtha feeds through the catalytic bed of several reactors at high temperatures and pressures that potentially increase the aromatics content of naphtha and its octane number. Usually, naphtha feed is used to remove the impurities that prevent useful reactions and cause poisoning of reformer catalysts. Operating abutments for the catalytic converter unit are temperature, pressure, metallurgical agent, hydrogen to hydrocarbon ratio, and chlorine ratio. In this study, Operational Conditions in Octanizer and Hydro-treating Units in oil refinery companies is investigated and optimized the conditions of catalysis.","PeriodicalId":217728,"journal":{"name":"Journal of Chemical Reviews","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114565301","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}