Fe doped Ti oxide nano-adsorbent synthesis and its adsorption characteristics for fluoride removal in drinking water
1. Introduction The fluoride in drinking water is essential for health, however the excessive intake of fluoride causes dental or skeletal fluorosis 1. Adsorption is considered as the most efficient technology for fluoride removal from drinking water. Therefore, it is important to synthesize a kind of efficient and economical defluoride adsorbent. Recently, titanium-derived adsorbent has been found to be a potential selective adsorbent for fluoride ions and especially arsenic compounds. Although TiO2 exhibits small fluoride ion exchange capacity, it was found that titanium tetrahydroxide (Ti(OH)4) prepared by titrating ammonia into TiOSO4 solution could exchange fluoride ion with a large saturation capacity of 30.4 mg/g 2. The Ti-Ce and Ti-La hybrid adsorbents were obtained by the 80℃hydrolysis-precipitation method. The Langmuir adsorption capacities of fluoride on the Ti-Ce and Ti-La adsorbents were 30.6 and 46.6 mg/g, respectively 3.
Lin Chen Shuai He Bo-Yang He Ting-Jie Wang Chao-Li Su Yong Jin
Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
国际会议
北京
英文
155-156
2011-11-24（万方平台首次上网日期，不代表论文的发表时间）