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| 1 | Extraction and characterization of alumina nanopowders from aluminum dross by acid dissolution process显示文摘A significant amount of aluminum dross is available as a waste in foundry industries in Bangladesh. In this study, alumina was extracted from aluminum dross collected from two foundry industries situated in Dhamrai and Manikgang, near the capital city, Dhaka. Aluminum dross samples were found to approximately contain 75wt% Al2O3 and 12wt% SiO2. An acid dissolution process was used to recover the alumina value from the dross. The effects of various parameters, e.g., temperature, acid concentration, and leaching time, on the extraction of alumina were studied to optimize the dissolution process. First, Al(OH)3 was produced in the form of a gel. Calcination of the Al(OH)3 gel at 1000°C, 1200°C, and 1400°C for 2 h produced θ-Al2O3,(α+θ)-Al2O3, and α-alumina powder, respectively. Thermal characterization of the Al(OH)3 gel was performed by thermogravimetric/differential thermal analysis(TG/DTA) and differential scanning calorimetry(DSC). The phases and crystallite size of the alumina were determined by X-ray diffraction analysis. The dimensions of the alumina were found to be on the nano level. The chemical compositions of the aluminum dross and alumina were determined by X-ray fluorescence(XRF) spectroscopy. The microstructure and morphology of the alumina were studied with scanning electron microscopy. The purity of the alumina extracted in this study was found to be 99.0%. Thus, it is expected that the obtained alumina powders can be potentially utilized as biomaterials. | Saifur Rahman Sarker Zahangir Alam Rakibul Qadir M A Gafur Mohammad Moniruzzaman | 2015 | International Journal of Minerals,Metallurgy and Materials2015，22，4： | 20 |
| 2 | Crop and irrigation management strategies for saline-sodic soils and waters aimed at environmentally sustainable agriculture显示文摘 | M Qadir J.D Oster | 2003 | Science of the Total Environment2003，，1： | 1 |
| 3 | Digital text watermarking: secure content delivery and data hiding in digital documents显示文摘 | Qadir M A Ahmad I | 2006 | Aerospace and Electronic Systems Magazine IEEE2006，21，11： | 1 |
| 4 | Crop and irrigation management strate- gies for saline-sodic soils and waters aimed at environmen- tally sustainable agriculture显示文摘 | Qadir M Oster J D | 2004 | Science of the Total Envi- ronment2004，323，13： | 1 |
| 5 | Amelioration Strategies for Saline Soils显示文摘 | Qadir M Ghafoor A and Murtaza G | 2000 | Land Degradation and Development2000，11，： | 1 |
| 6 | Agricultural water management in water-starved countries: Challenges and opportunities 显示文摘 | Qadir M Boers Th M Schubert S | 2003 | Agricultural Water Management2003，62，： | 1 |
| 7 | Productivity enhancement of salt-affected environments through crop diversification显示文摘 | Qadir M Tubeileh A Akhtar J | 2008 | Land Degradation and Development2008，19，： | 1 |
| 8 | Fecal incontinence and constipation in children:A clinical conundrum显示文摘 | Ali SR Ahmed S Qadir M | 2011 | Oman Med J2011，26，5： | 1 |
| 9 | Proteomics-based dissection of stress - responsive pathways in plants 显示文摘 | QURESHI M I QADIR S ZOLLA L | 2007 | Journal of Plant Physiology2007，164，： | 1 |
| 10 | Assessment of In vitro antioxidant, antibacterial and immune activation potentials of aqueous and ethanol extracts of Phyllanthus niruri显示文摘 | Zahra A Amin Mahmood A Abdulla Hapipah M Ali Mohammed A Alshawsh Suhailah W Qadir | 2012 | J Sci Food Agric2012，，9： | 1 |
| 11 | Amelioration strategies for sodic soils: A review显示文摘 | Qadir M Schubert S Ghafoor A | 2001 | Land Degradation and Development2001，12，： | 1 |
| 12 | Cyclosporin A Is a Broad- Spectrum Muhidrug Resistance Modulator 显示文摘 | Qadir M O'Loughlin KL Fricke SM | 2005 | Clin Cancer Res2005，11，6： | 1 |
| 13 | Agricultural water management in water-starved countries: challenges and opportunities显示文摘 | QADIR M BOERS T M SCHUBERT S | 2003 | Agric Water Manage2003，62，3： | 1 |
| 14 | Vegetative bioremediation of calcareous sodic soils: history, mechanisms and evaluation显示文摘 | Qadir M Osier J D | 2002 | Irrigation Science2002，21，： | 1 |
| 15 | To determine the safety and success of transradial coronary angiography and angioplasty-a local experience显示文摘 | KHAN M QADIR F HANIF B | 2010 | J Pak Med Assoc2010，60，10： | 1 |
| 16 | Non - conventional water resources and opportunities for water augmentation to achieve food security in water scarce countries 显示文摘 | QADIR M SHARMA B R BRUGGEMAN A CHOUKR - ALLAH R KARAJEH F | 2007 | Agricultural Water Management2007，87，： | 1 |
| 17 | Crop and irrigation management strate- gies for saline-sodic soils and waters aimed at environmen- tally sustainable agriculture显示文摘 | Qadir M Oster J D | 2004 | Science of The Total Envi- ronment2004，323，1： | 1 |
| 18 | Degradation processes and nutrient constraints in sodic soils显示文摘 | QADIR M SCHUBERT S | 2002 | Land Degradation & Development2002，13，4： | 1 |
| 19 | A Framework for Ontology Evaluation显示文摘 | Fahad M Qadir M A | 2008 | ICCS Supplement2008，354，： | 1 |
| 20 | Horizontal flushing: a promising ameliorative technology for hard saline-sodic and sodic soils显示文摘 | Qadir M Qureshi R H Ahmad N | 1998 | Soil and Tillage Research1998，45，1： | 1 |
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