scholarly journals Source Apportionment and Characterization of Water Insoluble Single Particulate Matters in Rain Sequences Using Particle Size Analyzer and Scanning Electron Microscopy

2021 ◽  
Author(s):  
Ercan BERBERLER ◽  
Betül Tuba GEMİCİ ◽  
Handan UCUN ÖZEL ◽  
Tuğçe DEMİR ◽  
Duran KARAKAŞ
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Thermal Power ◽  
Urban Traffic ◽  
Water Soluble ◽  
Particulate Matters ◽  
Particle Size Analyzer ◽  
Sequential Samples ◽  
Scanning Electron

Abstract In this study, eight independent rainfall events were sampled sequentially from September 20, 2019 to June 15, 2020, in Bartın province located at the western Black Sea coast of Turkey. Manually collected volume based sequential samples were analyzed for pH and water soluble ions involving F-, Cl-, NO3-, SO42–, PO43-, Na+, K+, NH4+, Mg2+ and Ca2+. Total trace and major elements (sum of soluble and insoluble fractions), and elemental and organic carbons (EC and OC) contents of the sequential samples were measured. Water insoluble particulate matters in the sequential samples were characterized for their sizes, morphologies and the compositions by using Scanning Electron Microscopy Energy Dispersive X-Ray Spectrometry (SEM-EDS) and particle size analyzer. Results of SEM-EDS, particle size distributions, chemical analyses and the upper atmospheric backtrajectories were used to apportion the sources of the water insoluble single particulate matters in sequential rain samples. Using the proposed method, iron-steel facilities, and thermal power plants were identified as the significant regional sources. Urban traffic and natural emission were identified as the local sources.

Isolasi Dan Karakterisasi Bentonit Alam Menjadi Nanopartikel Monmorillonit

2018 ◽  
Vol 3 (1) ◽  
pp. 12 ◽  
Author(s):  
Zaimahwati Zaimahwati ◽  
Yuniati Yuniati ◽  
Ramzi Jalal ◽  
Syahman Zhafiri ◽  
Yuli Yetri
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Surface Morphology ◽  
Average Diameter ◽  
Particle Size Analyzer ◽  
Ft Ir ◽  
Scanning Electron ◽  
Sedimentation Processes

<p>Pada penelitian ini telah dilakukan isolasi dan karakterisasi bentonit alam menjadi nanopartikel montmorillonit. Bentonit alam yang digunakan diambil dari desa Blangdalam, Kecamatan Nisam Kabupaten Aceh Utara.  Proses isolasi meliputi proses pelarutan dengan aquades, ultrasonic dan proses sedimentasi. Untuk mengetahui karakterisasi montmorillonit dilakukan uji FT-IR, X-RD dan uji morfologi permukaan dengan Scanning Electron Microscopy (SEM). Partikel size analyzer untuk menganalisis dan menentukan ukuran nanopartikel dari isolasi bentonit alam. Dari hasil penelitian didapat ukuran nanopartikel montmorillonit hasil isolasi dari bentonit alam diperoleh berdiameter rata-rata 82,15 nm.</p><p><em>In this research we have isolated and characterized natural bentonite into montmorillonite nanoparticles. Natural bentonite used was taken from Blangdalam village, Nisam sub-district, North Aceh district. The isolation process includes dissolving process with aquades, ultrasonic and sedimentation processes.  The characterization of montmorillonite, FT-IR, X-RD and surface morphology test by Scanning Electron Microscopy (SEM). Particle size analyzer to analyze and determine the size of nanoparticles from natural bentonite insulation. From the research results obtained the size of montmorillonite nanoparticles isolated from natural bentonite obtained an average diameter of 82.15 nm.</em></p>

scholarly journals PEMBUATAN DAN KARAKTERISASI NANOPARTIKEL EKSTRAK ETANOL TEMU KUNCI (Boesenbergia pandurata) PADA BERBAGAI VARIASI KOMPOSISI KITOSAN

2017 ◽  
Vol 6 (1) ◽  
pp. 31 ◽  
Author(s):  
Dessy Kurniasari ◽  
Sri Atun
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Particle Size Analyzer ◽  
Scanning Electron

Tujuan penelitian ini adalah untuk membuat dan mengetahui karakteristik nanopartikel dari ekstrak etanol temu kunci (Boesenbergia pandurata) dan rasio optimal variasi konsentrasi kitosan dan NaTPP dalam pembuatan nanopartikel temu kunci.            Pembuatan ekstrak temu kunci (Boesenbergia pandurata) menggunakan metode maserasi menggunakan etanol teknis 96% dilanjutkan evaporasi hingga terbentuk ekstrak kental temu kunci. Koloid nanopartikel dibuat dengan mencampurkan ekstrak temu kunci dalam etanol p.a, akuades, larutan kitosan dalam asam asetat glasial, dan larutan NaTPP. Ada 9 variasi komposisi antara larutan kitosan dan  NaTPP yakni rasio (5:1); (10:1); (15:1); (20:1); (3,33:1); (8:1); (9:1); (11:1); dan (12:1). Padatan dalam koloid nanopartikel dipisahkan dengan cara sentrifugasi. Endapan yang didapatkan disimpan dalam freezer. Koloid nanopartikel yang terbentuk dikarakterisasi menggunakan Particle Size Analyzer (PSA) dan Zeta Sizeruntuk mengetahui ukuran partikel dan nilai zeta potensial. Padatan yang didapatkan dari proses sentrifugasi selanjutnya dikarakterisasi menggunakan Scanning Electron Microscopy (SEM) untuk mengetahui kondisi morfologi padatan tersebut. Karakterisasi dengan KLT pada padatan yang didapatkan bertujuan untuk mengetahui kesamaan kandungan senyawa antara ekstrak etanol temu kunci dan ekstrak etanol temu kunci dalam sediaan berukuran nano.            Koloid nanopartikel yang telah dibuat berwarna kuning dan setelah di sentrifugasi terbentuk padatan berwarna kuning kecokelatan. Karakterisasi menggunakan PSA menunjukkan ukuran partikel pada rentang 389-877 nm sebanyak 98,1% pada rasio konsentrasi kitosan dan NaTPP = (8:1). Nilai rerata zeta potensial adalah 41,87 mV. Hasil foto SEM menunjukkan morfologi partikel yang memiliki permukaan yang tidak rata. Rf keenam sampel menunjukkan hasil bahwa senyawa yang terkandung dalam ekstrak etanol temu kunci maupun ekstrak etanol temu kunci dalam sediaan nanopartikel adalah sama. Kata Kunci : kitosan, NaTPP, ekstrak etanol temu kunci, KLT, SEM, PSA, zeta sizer

The Study on the Synthesis and Luminescent Properties of the Phosphor La2O3: Dy3+

2013 ◽  
Vol 683 ◽  
pp. 297-300 ◽  
Author(s):  
Wei Wei Tang ◽  
Wen Yu Zhao ◽  
Bin Fan
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Luminescent Properties ◽  
X Ray ◽  
Particle Size Analyzer ◽  
Structure Morphology ◽  
Size Of Particles ◽  
Luminescent Centers ◽  
Scanning Electron

In this paper, the phosphor La2O3: Dy3+ was synthesized by a gel-sel method and its structure, morphology, particle size, Photoluminescence (PL) and Cathodoluminescence (CL) properties were characterized by X-Ray powder diffraction (XRD), scanning electron microscopy (SEM),laser particle size analyzer, Photoluminescence (PL) and Cathodoluminescence (CL) spectra, respectively. The results indicate that the Dy3+ as luminescent centers substituted La3+ ions into the single crystal lattice of La2O3 and located in the sites of C3. The size of particles was nearly spherical with the diameter of about 1μm. The sample can be 350~500nm light into visible light. Whether Photoluminescence (PL) or Cathodoluminescence (CL), Two emission peaks at about 489 nm (blue) and 575 nm (yellow) were corresponding to 4F9/2-6H15/2 and 4F9/2-6H13/2 transitions with the maximum emission wavelength at about 575 nm. This white phosphor can be applied both in LEDs and in the field emission devices.

A Preliminary Study on the Anti-Mosquito Nanocapsule

2014 ◽  
Vol 487 ◽  
pp. 98-101 ◽  
Author(s):  
Jun Hua Wang ◽  
Gang Huang ◽  
Yong Tang Jia
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Emulsion Polymerization ◽  
Ethyl Acrylate ◽  
Particle Size Analyzer ◽  
Micro Emulsion ◽  
The Mean ◽  
Preliminary Study ◽  
Scanning Electron

Anti-mosquito nanocapsules were prepared using the copolymer of styrene (ST) and ethyl acrylate (EA) as wall and deet as core by micro-emulsion polymerization. The mean particle size of nanocapsules was about 424nm and the loading of deet was about 73% under the conditions of 2% SDS as emulsifier and the ratio of core/wall 1:1. Scanning electron microscopy and laser particle size analyzer were employed to characterize the nanocapsules.

scholarly journals Sintesis Nanopartikel ZnO dan Aplikasinya sebagai Edible Coating Berbasis Pektin untuk Memperpanjang Umur Simpan Buah Belimbing

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Muhammad Fajri Romadhan ◽  
Shanti Pujilestari
Keyword(s):  
Electron Microscopy ◽  
Escherichia Coli ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Edible Coating ◽  
Plate Count ◽  
Total Plate Count ◽  
Particle Size Analyzer ◽  
Infra Red ◽  
Scanning Electron

ABSTRAKNanopartikel ZnO (NP-ZnO) merupakan partikel yang mempunyai aktivitas antimikroba cukup luas yaitu dapat menghambat pertumbuhan bakteri Gram negatif, Gram positif, khamir dan kapang. Nanopartikel ZnO dapat digunakan sebagai bahan tambahan untuk memperbaiki sifat mekanik dan fungsional dari edible coating yang berbasis pektin. Tujuan dari penelitian ini adalah untuk melihat pengaruh edible coating pektin+NP-ZnO terhadap masa simpan buah belimbing. Nanopartikel disintesis dengan metode presipitasi menggunakan tiga suhu pemanasan yang berbeda yaitu 60, 80 dan 100°C selama 2 jam dan ditanur pada suhu 500°C selama 5 jam. Nanopartikel yang terbentuk dikarakterisasi menggunakan Fourier Transform Infra Red (FTIR), Particle Size  Analyzer (PSA) dan Scanning Electron Microscopy (SEM). Hasil analisis FTIR menunjukkan bahwa nanopartikel ZnO telah terbentuk dengan adanya puncak pada panjang gelombang 474 cm-1. Suhu sintesis nanopartikel ZnO terbaik adalah 800C dengan ukuran partikel rata-rata 43.1 nm. Hasil analisis SEM memperlihatkan bahwa nanopartikel yang terbentuk mempunyai morfologi bulat. Hasil uji antimikroba dengan metode Total Plate Count (TPC) memperlihatkan nanopartikel ZnO dapat menghambat pertumbuhan bakteri Bacillus cereus, Escherichia Coli dan kapang Penicillium Sp. Aplikasi edible coating pektin+ Nanopartikel ZnO 1% pada buah belimbing memperlihatkan penurunan susut bobot,  menjaga warna buah lebih stabil dan mencegah kerusakan buah yang ditimbulkan kapang selama delapan hari penyimpanan. Kata kunci: nanopartikel ZnO, edible coating, antimikroba, umur simpan, belimbing

scholarly journals Sintesis dan Karakterisasi Zeolit Hidroksi Sodalit dari Limbah Padat Abu Layang PLTU Batubara

2019 ◽  
Vol 4 (2) ◽  
pp. 9
Author(s):  
Amalia Ekaputri Hidayat ◽  
Setyo Sarwanto Moersidik ◽  
Sandyanto Adityosulindro
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Fly Ash ◽  
Solid Waste ◽  
Coal Fly Ash ◽  
X Ray Diffraction ◽  
X Ray ◽  
Particle Size Analyzer ◽  
Scanning Electron

Coal burning process in steam powered electric generator plants functioned to generate electricity energy. This process produce kinds of waste, such as solid waste, waste water, and emission. One of the solid waste produced in this process is fly ash. Fly ash is categorized as hazardous waste, it also can buildup in the landfill because of its massive production. However, fly ash has the potential as a raw material to produce synthetic zeolite because it contains metal oxide which is quite high. In this study, class F coal fly ash was synthesized by combining hydrothermal and fusion method. Synthesized fly ash and zeolite are characterized so that the chemical composition can be analyzed by X-ray Fluorescence; the mineralogy analyzed by X-ray Diffraction; the surface morphology analyzed by Scanning Electron Microscopy; and the particle size analyzed by Particle Size Analyzer. The synthesis of zeolite from coal fly ash in this study result hydroxy-sodalite zeolite type. In addition, this synthesis process increases the surface area of the previous fly ash. From the characteristics of zeolite from this synthesis it can be conclude that this zeolite can be approved as an adsorbent for the removal of liquid or gas pollutants in environmental technology applications with further research. ABSTRAKProses yang terjadi pada Pembangkit Listrik Tenaga Uap untuk menghasilkan energi listrik adalah melalui unit proses pembakaran batubara. Proses ini akan menghasilkan limbah padat, cair, maupun udara. Salah satu limbah padat yang dihasilkan adalah abu layang. Limbah abu layang ini dikatagorikan limbah bahan berbahaya dan beracun, serta dapat terjadinya penumpukan di tempat penimbunan akhir karena produksinya yang sangat tinggi. Namun, abu layang memiliki potensi sebagai bahan baku dalam memproduksi zeolit sintetik karena kandungan oksida logamnya yang cukup tinggi. Pada penelitian ini, abu layang batu bara kelas F disintesis dengan metode gabungan fusi-hidrotermal. Abu layang dan zeolit yang disintesis dikarakterisasi agar dapat dianalisis komposisi kimianya dengan X-ray Flourescence; mineraloginya dengan X-ray Diffraction; morfologi permukaan dengan Scanning Electron Microscopy; serta distribusi partikel dengan Particle Size Analyzer. Proses sintesis zeolit dari abu layang batubara pada penelitian ini menghasilkan zeolit jenis hidroksi sodalit. Selain itu, proses sintesis ini meningkatkan luas permukaan dari abu layang sebelumnya. Dari karakteristik zeolit hasil sintesis ini dapat disimpulkan bahwa zeolit ini dapat berpotensi sebagai adsorben untuk penyisihan polutan cair maupun gas pada aplikasi teknologi lingkungan dengan penelitian lebih lanjut.Kata kunci : abu layang; zeolit; hidroxi-sodalit; sintesis; fusi-hidrotermal

Synthesis and Properties of Poly-Acrylate Emulsion Modified by Organ Silicone

2011 ◽  
Vol 314-316 ◽  
pp. 82-85
Author(s):  
Yu Xin Liu ◽  
Yao Hui Lv ◽  
Shu Zhang ◽  
Fu Jia Xu ◽  
Bin Shi Xu
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Particle Diameter ◽  
The Other ◽  
Trade Name ◽  
Particle Size Analyzer ◽  
Acrylate Emulsion ◽  
Emulsion Film ◽  
Scanning Electron

An acrylate emulsion was modified by vinyltriethoxy silane (VTES, trade name A-151) to synthesize the acrylosilane emulsion with high properties. The effect of the amount of A-151 on the properties pf the emulsion was investigated. It found that adding 6 % of A-151, the fraction extensibility of the emulsion film could be increased to 530 % and its water absorption was reduced to 4.2 % while adding 10 % of A-151. On the other side, the particle size and distribution of the emulsion were analyzed by Scanning Electron Microscopy (SEM) and Malvern Particle Size Analyzer (PSA) respectively. The measuring results showed that the particle diameter of the modified emulsion could be between 100 and 700 nanometers, and the properties of the emulsion could be apparently improved by adding A-151 into the system of emulsion polymerization.

Behaviours of Zinc and Lead in Blast Furnace of Baotou Iron and Steel Group Co.

2011 ◽  
Vol 194-196 ◽  
pp. 306-309 ◽  
Author(s):  
Fang Zhang ◽  
Sheng Li An ◽  
Guo Ping Luo ◽  
Shi Zhong Zhang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Blast Furnace ◽  
Particle Sizes ◽  
Iron And Steel ◽  
X Ray ◽  
Lead And Zinc ◽  
Particle Size Analyzer ◽  
Scanning Electron

The balance calculation of zinc and lead of No.1 BF of Baotou Iron and Steel Group Co. was performed in this research. The particle sizes of BF dusts were measured by LS230 laser particle size analyzer. The micrology of sinter and dusts were investigated with scanning electron microscopy (SEM, Hitachi S-3000) coupled with an energy-dispersive X-ray analysis (EDX). The results show that the general burdens of zinc and lead in No. 1 mainly came from sinter and pellet. The burdens of zinc and lead in No.1 BF were 645.45g/t and 370.33 g/t respectively, which were too much to need take some measures. Among the gas ash, the particle size of baghouse dust was minimal, but the contents of lead and zinc were highest. So the BF baghouse dust isn’t appropriate to recover as the sintering materials. The speciation of lead is PbO, PbCl3 and metallic Pb, but zinc never presents as metal in BF dusts.

scholarly journals Pembuatan Dan Karaterisasi Nanopartikel Ekstrak Etanol Daun Ekor Naga (Rhaphidophora pinnata (L.f.) Schott) Menggunakan Metode Gelasi Ionik

2018 ◽  
Vol 1 (3) ◽  
pp. 029-033
Author(s):  
Dian Ayumi ◽  
Sumaiyah Sumaiyah ◽  
Masfria Masfria
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Surface Structure ◽  
Size Distribution ◽  
Ethanol Extract ◽  
Ionic Gelation ◽  
Particle Size Analyzer ◽  
Scanning Electron

Pengobatan tradisional masih diminati. Salah satu tumbuhannya adalah daun ekor naga (Rhaphidophora pinnata (L.f.) Schott) yang digunakan sebagai obat antikanker dan antibakteri. Penggunaan nanoteknologi dalam sistem penghantaran obat terus diteliti dan dikembangkan. Penelitian ini bertujuan untuk membuat dan mengetahui sifat-sifat nanopartikel ekstrak etanol daun ekor naga (Rhaphidophora pinnata (L.f.) Schott) menggunakan metode gelasi ionik. Ekstrak daun ekor naga dibuat dengan metode maserasi menggunakan pelarut etanol 96%. Nanopartikel dibuat dengan metode gelasi ionik, yaitu menggunakan larutan natrium tripolipospat 0,1% dan kitosan 0,2%, Nanopartikel kemudian dikarakterisasi menggunakan Particle Size Analyzer untuk mengetahui distribusi ukuran partikel dan Scanning Electron Microscopy untuk mengetahui bentuk permukaan partikel. Nanopartikel yang dihasilkan berupa serbuk berwarna coklat muda dengan distribusi ukuran partikel 234,49-1479,50 nm pada perbandingan kitosan 0,2% dan natrium tripolipospat 0,1% (5:1). Bentuk permukaan nanopartikel ekstrak etanol daun ekor naga yaitu tidak rata dan membentuk agregat longgar. Ekstrak etanol daun ekor naga dapat dibuat menjadi nanopartikel dengan kitosan 0,2% dan natrium tripolipospat 0,1% menggunakan metode gelasi ionik.   Traditional medicine is still popular. One of them is ekor naga Leaves (Rhaphidophora pinnata (L.f.) Schott) that has been used as anti-cancer and anti-bacteria. Nanotechnology in drug delivery system is still being studied and developed. This research aimed to prepare and evaluate the characterization of nanoparticle of Ekor Naga Leaves Ethanol Extract (Rhaphidophora pinnata (L.f.) Schott) by Ionic Gelation Method. The Ekor naga leaves extract was prepared by maceration with ethanol 96%. Nanoparticle was prepared by ionic gelation method, using sodium trypholiphosphat 0.1% and chitosan 0.2%, then it was characterized using Particle Size Analyzer to determine particle size distribution and Scanning Electron Microscopy to determine surface structure  particle. The nanoparticle was light brown with particle size distribution of  234.49-1479.50 nm in ratio of chitosan 0.2% and sodium trypholiphosphat 0.1% was 5:1. The surface structure of nanoparticle of ekor naga leaves extract was not smooth and form loose aggregates. The ethanol extract of ekor naga leaves can be prepared into nanoparticle with sodium trypholiphosphat 0.1% and chitosan 0.2% by Ionic Gelation Method

Sign in / Sign up

Export Citation Format

Share Document