Recent Progress on Adsorption Materials for Phosphate Removal

• Published in: Recent patents on nanotechnology
• Main Authors: Ahmed, Saeed, Ashiq, Muhammad Naeem, Li, Dianqing, Tang, Pinggui, Leroux, Fabrice, Feng, Yongjun
• Format: Journal Article
• Language: English
• Published: United Arab Emirates 01.01.2019
• Subjects: layered double hydroxides; natural materials; nanomaterials; Adsorption process; phosphate removal; metal oxide
• ISSN: 2212-4020
• DOI: 10.2174/1872210513666190306155245

High concentration of phosphate has been threatening human health and ecosystem. Adsorption is one of high-efficiency and low-cost techniques to reduce concentration of phosphatee. This mini review aims to summerize recent development of adsorption materials for phosphate removal. We conducted a detailed search of "adsorption of phosphate" in the published papers and the public patents on the adsorbents for phosphate based on Web of Science database in the period from January 1st 2012 to December 31 2017. The corrsponding literatures were carefully evaluated and analyzed. One hundred forty one papers and twenty two recent patents were included in this review. An increase trend in scientific contributions was observed in development of adsorption materials for phosphate removal. Three kinds of promising adsorbents: layered double hydroxides, natural materials, and metal oxides were paid a special attention including removal mechanism, performace as well as relationship between adsorption performance and structure. Both of the chemical composition and the morphology play the key role in the removal capacity and rate. The findings of this review confirm the importance of phosphate removal, show the development trend of high-performance and low-cost adsorption materials for phosphate removal, and provide helpful guide to design and fabricate high-efficiency adsorbents.