scholarly journals Potensi Nanopartikel Magnetit Pasir Besi Lampanah Aceh Besar Melalui Studi Kajian Teknik Pengolahan, Sintesis Dan Karakteristik Struktur

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Sri Nengsih
Keyword(s):  
Magnetite Nanoparticles ◽  
Qualitative Method ◽  
Structural Characteristics ◽  
Treatment Temperature ◽  
Synthesis Methods ◽  
Literature Study ◽  
Magnetite Nanoparticle ◽  
Experimental Process ◽  
Co Precipitation ◽  
The Magnetic Field

Research on the sand iron potential in generating magnetite nanoparticles in Lampanah Aceh Besar through a study of techniques processing, synthesis methods and structural characteristics has been completed. The method used in this research is qualitative method in the kind of literature study from the data of Banda Aceh ESDM Ministry. The results of this study indicate that iron sand in Lampanah area has a dominant element which contained Fe3O4. The magnetic separation method is used to separate the iron sand from impurities, while the co-precipitation synthesis of one of the methods chosen in generating the magnetite nanoparticles which due to a simple, economical experimental process and low treatment temperature. Through the XRD test, the cubic iron sand magnetite nanoparticles with a 2 angle are 35,55o, 57,13o and 62,70o with the hkl [311], [511] and [440], while the TEM and SEM tests showed that the dominant particle shape is round and the distribution is tight. Therefore, controlling the size and shape of iron sand magnetite nanoparticles will provide great potential in the magnetic field of magnetism. The conclusions of this study show that the iron sand located in Aceh Besar has the potential to be a magnetite nanoparticle.

scholarly journals Magnetite-Silica Core/Shell Nanostructures: From Surface Functionalization towards Biomedical Applications—A Review

2021 ◽  
Vol 11 (22) ◽  
pp. 11075
Author(s):  
Angela Spoială ◽  
Cornelia-Ioana Ilie ◽  
Luminița Narcisa Crăciun ◽  
Denisa Ficai ◽  
Anton Ficai ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Biomedical Applications ◽  
Sol Gel ◽  
Magnetic Nanomaterials ◽  
Core Shell ◽  
Synthesis Methods ◽  
Shell Nanostructures ◽  
Silica Core ◽  
Magnetic Resonance Imaging Mri ◽  
Co Precipitation

The interconnection of nanotechnology and medicine could lead to improved materials, offering a better quality of life and new opportunities for biomedical applications, moving from research to clinical applications. Magnetite nanoparticles are interesting magnetic nanomaterials because of the property-depending methods chosen for their synthesis. Magnetite nanoparticles can be coated with various materials, resulting in “core/shell” magnetic structures with tunable properties. To synthesize promising materials with promising implications for biomedical applications, the researchers functionalized magnetite nanoparticles with silica and, thanks to the presence of silanol groups, the functionality, biocompatibility, and hydrophilicity were improved. This review highlights the most important synthesis methods for silica-coated with magnetite nanoparticles. From the presented methods, the most used was the Stöber method; there are also other syntheses presented in the review, such as co-precipitation, sol-gel, thermal decomposition, and the hydrothermal method. The second part of the review presents the main applications of magnetite-silica core/shell nanostructures. Magnetite-silica core/shell nanostructures have promising biomedical applications in magnetic resonance imaging (MRI) as a contrast agent, hyperthermia, drug delivery systems, and selective cancer therapy but also in developing magnetic micro devices.

scholarly journals Temperature-induced switchable magnetite nanoparticle superstructures

2020 ◽  
Vol 1 (1) ◽  
pp. 10-13
Author(s):  
Cathrin Kronenbitter ◽  
Hironobu Watanabe ◽  
Sadahito Aoshima ◽  
Helmut Cölfen
Keyword(s):  
Green Synthesis ◽  
Magnetite Nanoparticles ◽  
Room Temperature ◽  
Magnetite Nanoparticle ◽  
Co Precipitation

In this study we describe the green synthesis of temperature-switchable polymer-magnetite nanoparticles (PMNPs) in water at room temperature via an improved co-precipitation pathway for reversible switchable superstructures.

PENGUATAN PENDIDIKAN AGAMA ISLAM MELALUI HAFALAN FURUDHUL AINIYAH DI SMP NURUL JADID PAITON

2017 ◽  
Vol 1 (1) ◽  
pp. 196-204
Author(s):  
Sulistiawati Sulistiawati
Keyword(s):  
High School ◽  
Religious Education ◽  
Junior High School ◽  
Qualitative Method ◽  
Religious Activities ◽  
Case Study Method ◽  
Literature Study ◽  
Observation Study ◽  
Homeroom Teachers

This research is intended to search and information about the strengthening of Islamic religious education (PAI) through the recitation of furudhul Ainiyah which is carried out in Nurul Jadid Paiton Junior High School. The method of this research is by qualitative method with case study method, to express. That is more intense and deep with the above phenomenon. Technique of completion of data and information is done through interview, observation, study study, and literature study. The findings of this research are 1). Students or students are required to complete the recitation of Furudhul Ainiyah as a condition to take the odd semester and even semester exam and become a requirement for class and graduation increase. 2). the implementation of the furudhul Ainiyah memorization is performed on Thursday and Friday nights and Tuesday nights, and can also be done during normal day breaks, 3). The responsible and recipient of the rote deposit are PAI teachers and their homeroom teachers, 4). For students and students who can not read written Al-qur'an is not subject to rote burden, but get special coaching related to Al-Qur'an reading written by the religious coordinator of students. 5). Memory materials include Aqidah, Fiqih or Amaliyah materials, and daily prayers for students of VII and VIII semerter 1 and 2, while for classes IX semesters 1 and 2 cover the material of the Qur'an and Fiqh. 6). (a). Principal, (b). Vice Principal of the curriculum section, (c). Coordinator of students' religious activities, (d). Teacher / teacher of PAI, (e). Homeroom, (e). Student religious coordinator, (f). Student.

scholarly journals Sol-Gel Synthesis of the Double Perovskite Sr2FeMoO6 by Microwave Technique

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3876
Author(s):  
Jesús Valdés ◽  
Daniel Reséndiz ◽  
Ángeles Cuán ◽  
Rufino Nava ◽  
Bertha Aguilar ◽  
...  
Keyword(s):  
Particle Size ◽  
Hydrothermal Synthesis ◽  
Microwave Radiation ◽  
Structural Characteristics ◽  
Sol Gel ◽  
Synthesis Method ◽  
Double Perovskite ◽  
Synthesis Methods ◽  
X Ray ◽  
Sol Gel Synthesis

The effect of microwave radiation on the hydrothermal synthesis of the double perovskite Sr2FeMoO6 has been studied based on a comparison of the particle size and structural characteristics of products from both methods. A temperature, pressure, and pH condition screening was performed, and the most representative results of these are herein presented and discussed. Radiation of microwaves in the hydrothermal synthesis method led to a decrease in crystallite size, which is an effect from the reaction temperature. The particle size ranged from 378 to 318 nm when pH was 4.5 and pressure was kept under 40 bars. According to X-ray diffraction (XRD) results coupled with the size-strain plot method, the product obtained by both synthesis methods (with and without microwave radiation) have similar crystal purity. The Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS) techniques showed that the morphology and the distribution of metal ions are uniform. The Curie temperature obtained by thermogravimetric analysis indicates that, in the presence of microwaves, the value was higher with respect to traditional synthesis from 335 K to 342.5 K. Consequently, microwave radiation enhances the diffusion and nucleation process of ionic precursors during the synthesis, which promotes a uniform heating in the reaction mixture leading to a reduction in the particle size, but keeping good crystallinity of the double perovskite. Precursor phases and the final purity of the Sr2FeMoO6 powder can be controlled via hydrothermal microwave heating on the first stages of the Sol-Gel method.

Facile co-precipitation synthesis of shape-controlled magnetite nanoparticles

2014 ◽  
Vol 40 (1) ◽  
pp. 1519-1524 ◽  
Author(s):  
Lazhen Shen ◽  
Yongsheng Qiao ◽  
Yong Guo ◽  
Shuangming Meng ◽  
Guochen Yang ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Shape Controlled ◽  
Precipitation Synthesis ◽  
Co Precipitation

scholarly journals LAYERED DOUBLE HYDROXIDES: NANOMATERIALS FOR APPLICATIONS IN AGRICULTURE

2015 ◽  
Vol 39 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Luíz Paulo Figueredo Benício ◽  
Rejane Alvarenga Silva ◽  
Júnia Aparecida Lopes ◽  
Denise Eulálio ◽  
Rodrigo Morais Menezes dos Santos ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Layered Double Hydroxides ◽  
Slow Release ◽  
Structural Characteristics ◽  
Synthesis Methods ◽  
Double Hydroxides ◽  
Near Future

The current research aims to introduce Layered Double Hydroxides (LDH) as nanomaterials to be used in agriculture, with particular reference to its use as storage and slow release matrix of nutrients and agrochemicals for plant growing. Structural characteristics, main properties, synthesis methods and characterization of LDH were covered in this study. Moreover, some literature data have been reported to demonstrate their potential for storage and slow release of nitrate, phosphate, agrochemicals, besides as being used as adsorbent for the wastewater treatment. This research aims to expand, in near future, the investigation field on these materials, with application in agriculture, increasing the interface between chemistry and agronomy.

scholarly journals Pengelolaan Bahasa Untuk Pembelajaran Di Indonesia

2021 ◽  
Vol 6 (1) ◽  
pp. 1078-1085
Author(s):  
Zuniar Kamaluddin Mabruri
Keyword(s):  
Research Method ◽  
Qualitative Method ◽  
The State ◽  
Language Policies ◽  
Literature Study ◽  
Language Management ◽  
Triangular Relationship ◽  
The Government

This study aims to understand language management for learning in Indonesia. The research method used is a qualitative method with the type of literature study. The results show that the State of Indonesia has carried out language management in relation to the recognition of existing languages and is regulating for the government in the context of the state and nation so that there is a triangular relationship between language and the state which is regulated by the government for the benefit of the nation. If the state has guaranteed the existence of a language as a whole, then a number of policies will emerge to guarantee the rights and obligations of each in managing the existing language. Policies are formulated in the form of rules known as regulations, to serve as joint guidelines between the government and speakers of existing languages.

scholarly journals Implementation of the Teaching on the Life of the Apostle Paul in Serving Based on 2 Timothy 3:10-17

2021 ◽  
Vol 2 (3) ◽  
pp. 1-18
Author(s):  
Daniel Zacheus Soelistiyo ◽  
Hana Suparti ◽  
Paulus Sentot Purwoko ◽  
Ana Lestari
Keyword(s):  
Qualitative Method ◽  
Analysis Approach ◽  
Way Of Life ◽  
Literature Study ◽  
Apostle Paul ◽  
Important Thing ◽  
God's Word ◽  
The Church ◽  
Descriptive Qualitative

The pastor cannot be separated from his ministry life. In the church, the pastor is a leader, the attitudes and actions of pastors are often imitated by their congregation. Therefore, the pastor must maintain the attitudes and actions of his congregation as well as possible, the most important thing is that he must be able to set an example for others. For this reason, this article describes Paul's life teaching in serving as the goal in this writing which is beneficial for the implementation of the shepherd in serving God and others. Using descriptive qualitative method with literature study and analysis approach. So it can be concluded that the implementation of teaching about the life of the Apostle Paul in serving is based on 2 Timothy 3:10-17, among others: The Apostle Paul's Way of Life (Verse 10a). The Patience of the Apostle Paul (Verse 10b). The love of the Apostle Paul (Verse 10c). Perseverance of the Apostle Paul (Verse 10d). Live Hold on to the truth (Verse 14). Seek to know the Scriptures (Verse 15a). Wisdom (Verse 15b). Faith in Jesus (Verse 15). Living in the Word (Verse 16) Willing to Teach God's Word (Verse 16a). Willing to admit mistakes (Verse 16b). Willing to correct behavior (Verse 16c). Willing to be educated in the truth (Verse 16d). Willing to do good (Verse 17). All of this can be a guide for pastors in implementing Paul's teachings for the church and its ministry entrusted by God.

scholarly journals The Change of Butonese Cultural Landscape in Negeri Kawa, Molucas

2017 ◽  
Vol 9 (1) ◽  
pp. 61-69
Author(s):  
Ray March Syahadat
Keyword(s):  
Social Interaction ◽  
Focus Group ◽  
Focus Group Discussion ◽  
Qualitative Method ◽  
Cultural Landscape ◽  
Group Discussion ◽  
Landscape Dynamics ◽  
Literature Study ◽  
Depth Interview

As a maritime ethnic, Butonese people migrated to some places. A rather large amount of them are in Province of Maluku, Indonesia. This study aims at investigating Butonese cultural landscape in their new migrant region. Is there any different? If this study also aims to know social interaction among ethnics and how it affects Butonese cultural landscape dynamics. This study took place in Negeri Kawa, western part of Seram Regency, Maluku Province, on November 2015. The method used in the study was a qualitative method with in depth interview by snowball and triangulation technique, observation participation, focus group discussion (FGD), and literature study. The result showed that there is a different between Butonese cultural landscape in Buton and Negeri Kawa. Stereotype, presumption, and prejudice to Butonese people also occur. However, it is not always negative because from those three things, the process of acculturation and adaptation as a form of respect and prevention of Butonese culture can occur in Negeri Kawa.

Sign in / Sign up

Export Citation Format

Share Document