The present study aims to enhance the fluoride removal capacity of a low cost material common potters’ clay by surface modification through oxidic particles. Zirconium oxide particles have been supported over the clay surface to achieve the objective. Results revealed that the adsorbent is very efficient in a wide pH range of 3-11.The adsorption process followed a Freundlich isotherm model signifying that the adsorption took place on the surface in a multilayer form. Kinetic study show that adsorption gained equilibrium within 120 min and it follow pseudo 2^nd order kinetics. From this study, it is found that fluoride adsorptive power of common potters’ clay can be improved through surface modification of the clay by supporting ZrO₂ particles.

中文翻译：

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氧化锆颗粒改性的普通陶工粘土表面对氟化物的吸附增强

本研究旨在通过通过氧化颗粒进行表面改性来提高低成本材料普通陶工粘土的除氟能力。已经将氧化锆颗粒负​​载在粘土表面上以实现该目的。结果表明，该吸附剂在3-11的宽p H范围内非常有效。吸附过程遵循Freundlich等温模型，表明吸附以多层形式发生在表面上。动力学研究结果表明，吸附获得120分钟内平衡和它遵循伪2^代级动力学。从该研究中发现，通过负载ZrO ₂颗粒对粘土进行表面改性，可以提高普通陶工粘土的氟化物吸附能力。