Synthesis and application of alumina supported nano zero valent zinc as adsorbent for the removal of arsenic and nitrate
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- 作者：Hafiz Badaruddin Ahmad (1)
Yasir Abbas (1)
Mazhar Hussain (1)
Naeem Akhtar (1)
Tariq Mahmood Ansari (1)
Muhammad Zuber (2)
Khalid Mahmood Zia (2)
Shafiq Ahmad Arain (3) - 关键词：Adsorption ; Alumina ; SEM ; Arsenic ; Nitrates
- 刊名：Korean Journal of Chemical Engineering
- 出版年：2014
- 出版时间：February 2014
- 年：2014
- 卷：31
- 期：2
- 页码：284-288
- 全文大小：734 KB
- 作者单位：Hafiz Badaruddin Ahmad (1)
Yasir Abbas (1)
Mazhar Hussain (1)
Naeem Akhtar (1)
Tariq Mahmood Ansari (1)
Muhammad Zuber (2)
Khalid Mahmood Zia (2)
Shafiq Ahmad Arain (3)
1. Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
2. Institute of Chemistry, Government College University, Faisalabad, Pakistan
3. Department of Chemistry, Shah Abdul Latif University, Khairpur, Pakistan - ISSN：1975-7220
文摘
Arsenic and nitrate are ill-famed environmental pollutants that are responsible for various lethal diseases. Their removal from drinking water is very essential. In present study, newly synthesized alumina supported nano zerovalent zinc (Alumina-nZvZ) has been tested to remove arsenic and nitrate. Quantitative analyses of arsenic have been performed spectrophotometrically and while that of nitrates ions colorimetrically. After optimization of time and amount of adsorbent, Langmuir, Freundlich and D-R isotherms were applied to determine different parameters for the assessment of adsorption. Synthesized samples were characterized by scanning electron microscopy (SEM) to evaluate porosity and void size. Alumina coated with reduced ZnCl 2 showed better efficiency for removal of arsenic and nitrate ions. Kinetics of adsorption was evaluated by using pseudo first-order and pseudo second-order rate equations.