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Effect of pH and Coexisting Anions on Removal of Phosphate from Aqueous Solutions by Inorganic‐Based Mesostructures
Author(s) -
Choi JaeWoo,
Choi YongSoo,
Hong SeokWon,
Kim DongJu,
Lee SangHyup
Publication year - 2012
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143012x13373575830755
Subject(s) - fluoride , phosphate , sulfate , chemistry , aqueous solution , bromide , inorganic chemistry , chloride , nitrate , titanium , nuclear chemistry , organic chemistry
This study investigated the effect of pH and the presence of coexisting (competitive) anions on the removal of phosphate by titanium mesostructures synthesized using do‐ or hexadecyltrimethylammonium bromide. To address these research objectives, experiments were conducted (1) under controlled initial pH values (2 to10); and (2) through injection of nitrate, fluoride, chloride, or sulfate anions into a phosphate solution. Based on the experimental results, an initial of pH of 2 was found to be optimal for use of titanium mesostructures. The presence of fluoride anions in solution significantly decreased the removal efficiency of phosphate removal (3.56% at 3.95 mg/g). However, the addition of nitrate, chloride, and sulfate anions did not affect phosphate removal.