期刊
ENVIRONMENTAL CHEMISTRY LETTERS
卷 19, 期 3, 页码 2487-2525出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-020-01173-9
关键词
Dye removal; Modified magnetite nanoparticles; Low-cost adsorbents; Greener adsorbents; Activated carbon; Wastewater treatment
Treatment of industrial wastewaters containing dyes using adsorption with nanomaterials and magnetic nanoparticles is a simple and cost-effective technique. Adsorption efficiency increases with adsorbent concentration but sharply declines with increasing pH, with temperature also significantly influencing removal.
Pollution of industrial wastewaters containing dyes is a major concern for health in many countries, calling for advanced remediation techniques. Here, we review dye classification, toxicity, and removal with focus on adsorption using nanomaterials and magnetic nanoparticles. We present isotherm modeling and kinetic studies. We discuss factors controlling dye adsorption, such as pH, dye concentration, adsorbent amount, and temperature. Adsorption using magnetic nanoparticles appear as a simple and cost-effective technique. Removal efficiency increases with adsorbent concentration but declines sharply with increasing pH. Temperature is also highly influencing the removal.
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