Iron Humate as a Novel Adsorbent forp-Arsanilic Acid Removal From Aqueous Solution
| Autor: | Wei Wei, Siyi Ge, Guoxiang Wang, Shiyin Li, Yong Zhang, Hong Zhou, Peng Yun |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Polymers and Plastics Arsanilic acid Coprecipitation Chemistry Inorganic chemistry Kinetics Langmuir adsorption model 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films symbols.namesake chemistry.chemical_compound Adsorption Ionic strength symbols Humic acid Physical and Theoretical Chemistry 0210 nano-technology 0105 earth and related environmental sciences |
| Zdroj: | Journal of Dispersion Science and Technology. 37:1590-1598 |
| ISSN: | 1532-2351 0193-2691 |
| DOI: | 10.1080/01932691.2015.1120219 |
| Popis: | In this study, the iron humate (IH) prepared by a coprecipitation procedure with economical and environmentally friendly iron salts and humic acid (HA) was developed as an adsorbent, and its potential for p-arsanilic acid (p-ASA) removal from aqueous solution was then evaluated. The structure, surface morphology, and elemental composition of the synthesized adsorbent were characterized in detail and the adsorption behavior of p-ASA onto IH was investigated by altering the parameters of pH, contact time, adsorbent dosage, p-ASA concentration, ionic strength, competing ions, and temperature. Results showed that IH possessed good adsorption ability to aqueous p-ASA. The amount of p-ASA adsorbed increased with increasing adsorbent dosage and temperature, but decreased as the pH increased. The adsorption process of p-ASA obeyed pseudo-second-order kinetics. Equilibrium data were best described by the Langmuir model, and the estimated maximum adsorption capacity of IH was 188.68 mg/g at 308 K, displaying higher... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|