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Muliadi Muliadi
Universitas Khairun
Chemical Engineering, Chemistry & Bioengineering Education Social Sciences Other

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Source of Cadmium (Cd) In Soils and Its Transfer to Rice and Vegetables: Karotia Union, Tangail Shamim Al Mamun; Reyad Hossain Arif; Md Ariful Islam; Md Sirajul Islam; Zakia Parveen; Muliadi Muliadi
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 13, No 1: June 2020
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v13i1.9751

Abstract

Cadmium is a trace element which is not essential for human being. High cadmium concentration in some rice samples in Bangladesh was reported than that of other countries. This study was carried out to find out the Cd concentration fertilizers, soils, rice and vegetables and along with other chemical properties of Karotia union, Tangail sadar upazila, Tangail. A total of 29 samples were collected among the 14 soils from 7 stations at 0-15 cm and 16-30 cm depth respectively, 5 vegetables, 5 rice and also 4 different countries TSP fertilizers from local market. The Cd concentration values of all soil samples were found between 0.97 to 1.73 mg/kg (0-15 cm) and 0.53 to 0.83 mg/kg (16-30 cm), respectively and the vegetable sample values were found between 0.053 mg/kg to 0.123 mg/kg (d.w.).The rice sample values were found between 0.05 mg/kg to 0.096 mg/kg (d.w.). The fertilizer sample values were found between 20.67 to 92.33 mg/kg. The soil pH values obtained 7.06 to 7.70 (0-15 cm) and 7.48 to 7.88 (16-30 cm) which indicated that the study area soils were neutral to moderately alkaline. The EC values of all soil samples were between 47.67 to 82.67dSm-1 (0-15cm) and 33.33 to 58.33dSm-1 (16-30 cm). The organic matter content of all soils ranged from 0.789 to 0.905% and 0.351 to 0.869% at (0-15 cm and 16-30 cm), respectively. The available sodium (Na) values of soils were found between 1.84 to 1.92 ppm (0-15 cm) and 1.83 to 1.90 ppm (16-30 cm), respectively. The available potassium values ranged from 1.81 to 1.96 ppm (0-15 cm) and 1.84 to 1.97 ppm (16-30cm), respectively. The available calcium values of all soil samples were 1.92 to 1.97 ppm (0-15 cm) and 1.91 to 1.96 ppm (16-30 cm), respectively.   
Impact of Cyclone on Livelihood Pattern in the South Western Coastal Region of Bangladesh: Pirojpur Dilara Nasrin; Mahmuda Binte Latif; Shamim Al Mamun; Reyad Hossain Arif; Muliadi Muliadi
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 13, No 1: June 2020
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v13i1.10167

Abstract

This research was carried out to assess the impact of cyclone on livelihood pattern in Pirojpur district, Bangladesh during January to June, 2017. The study was both qualitative and quantitative type. The primary data were collected using randomly sampling method (42+42+42=126 respondents) from Tushkhali, Bhitabaria and Pattashi villages of Pirojpur district. The secondary data were collected from different journals, articles, books, official documents, thesis papers and also daily newspapers etc. From the study it was observed that monthly income of  middle (4001-8000 tk) and high (8001-above tk) income groups ware decreased by 5% and 0.92% respectively while low income people (1-4000 tk) was increased due to decrease of production after Sidr. On the other hand, expenditure ability of low and middle income groups was decreased. Sidr has created a great impact on human health, livestock, fisheries, food habit, crop production and occupation pattern of the affected people. Respondent’s houses were damaged partially (66.78%), 33.22% completely and cultivated land 28.57 % completely by Sidr in study area. Respondents of the study area said that the production of rice (8%), chili (12%), and vegetables (11%) were reduced due to saline water entrance into the crop field after Sidr. Affected people were migrated (temporary 23.10%, local 25% and internal 26.10%) from Pirojpur to Dhaka (53%), Pirojpur to other places (47%) on the post Sidr due to loss of houses, shelters, cultivated land and lack of job opportunity. Among all factors of temporary migration, water logging was the first reason of migrating people of the study area. 
DENSITY FUNCTIONAL THEORY SENYAWA KOMPLEKS Ni2+, Zn2+ DAN Pt2+ PIROLIDIN-DITIOKARBAMAT Nurmala Sari Duwila; Muliadi Muliadi; Muhammad Amin
SAINTIFIK@: Jurnal Pendidikan MIPA Vol 8, No 1 (2023): SAINTIFIK@: Jurnal Pendidikan MIPA EDISI MARET 2023
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/saintifik.v8i1.6220

Abstract

Penelitian ini dilakukan untuk menentukan permodelan dan optimasi geometri serta deskriptor elektronik senyawa kompleks Ni2+, Zn2+, dan Pt2+ Pirolidin-Ditiokarbamat menggunakan metode Density Functional Theory. Density Functional Theory merupakan salah satu metode komputasi yang digunakan untuk perhitungan kimia. Permodelan dan optimasi geometri serta deskriptor elektronik dilakukan secara komputasi dengan menggunakan paket progarm Gaussian 09W dan GaussView 6.016. Hasil optimasi menggunakan metode DFT (Density Functional Theory) dengan fungsi B3LYP dan basis set LANL2DZ didapatkan nilai energi total untuk masing-masing jenis senyawa pirolidin-ditiokarbmaat yaitu PDTC: 85,69 kcal/mol, Ni(PDTC)2: 175.631 kcal/mol, Zn(PDTC)2: 175.334 kcal/mol, Pt(PDTC)2:  175.524 kcal/mol.. Energi yang paling optimal yaitu pada senyawa Zn(PDTC)2: 175, 334 kcal/mol dengan nilai energi paling kecil atau mendekati nol. Penentuan deskriptor elektronik didapatkan data EHOMO, ELUMO, ΔEG (eV), Momen Dipol, dan Muatan Atom Bersih. Hasil deskriptor elektronik menunjukan bahwa energi yang paling optimal dari data EHOMO, ELUMO, Momen Dipol, dan Muatan Atom Bersih yaitu pada senyawa Zn(PDTC)2. Sedangkan, pada data ΔEG (eV) senyawa Zn(PDTC)2 merupakan senyawa yang stabil molekulnya dan rendah reaktivitasnya karena senyawa Zn(PDTC)2 memiliki nilai ΔEG (eV) terbesar yaitu 0,18759 eV.
STUDI KOMPUTASI KOMPLEKS 1,10-FENANTROLIN DENGAN LOGAM Fe, Cu, Co, Ni dan Zn MENGGUNAKAN METODE DENSITY FUNCTIONAL THEORY (DFT) Fahria Salamat; Muliadi Muliadi; Topan Setiawan
SAINTIFIK@: Jurnal Pendidikan MIPA Vol 8, No 1 (2023): SAINTIFIK@: Jurnal Pendidikan MIPA EDISI MARET 2023
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/saintifik.v8i1.6217

Abstract

Penelitian kimia komputasi dilakukan untuk mengetahui pemodelan struktur kompleks 1,10-fenantrolin dengan logam Fe, Cu, Co, Ni, Zn menggunakan metode DFT dan untuk  mengetahui aktivitas kompleks 1,10-fenantroline dengan logam Fe, Cu, Co, Ni dan Zn pemodelan struktur telah dilakukan secara komputasi dengan menggunakan software ChemDraW Ultra 12.0  dan GaussView dengan basis set B3LYP/6-31G. Parameter yang diperoleh dari hasil optimasi adalah EHOMO, ELUMO, dengan energi total. Dari nilai EHOMO dan ELUMO yang diperoleh kemudian dihitung nilai energy Gap (∆E),potensial ionisasi(I), afinitas elektron(A), elektronegativitas (x),hardness (ɳ), dan softness ( ). Perhitungan secara komputasi secara kimia menunjukan bahwa memodelkaan struktur Kompleks 1,10 Fenantrolin menggunakan metode DFT (Density Finctional Theory) Nilai energi total untuk masing–masing Kompleks 1,10 Fenantrolin adalah Fe-Phen :115.272 kcal/mol, Cu-Phen: 114.711 kcal/mol, Co-Phen: 119,192, kcal/mol Ni-Phen:113,641 kcal/mol:Zn-Phen : 123.99 kcal/mol.
Co-Authors Dilara Nasrin Fahria Salamat Mahmuda Binte Latif Md Ariful Islam Md Sirajul Islam Muhammad Amin Nurmala Sari Duwila Reyad Hossain Arif Reyad Hossain Arif Setiawan, Topan Shamim Al Mamun Shamim Al Mamun Zakia Parveen