MOF composites as high potential materials for hazardous organic contaminants removal in aqueous environments

MOF composites with selective, eminent adsorption ability, recycling performance, low cost, and green sustainable approaches as effective environmental adsorbents, have acquired increasing attention, specifically for wastewater treatment. Organic contaminants are easily released into the water through various man-made activities such as numerous synthetic pesticides and detergents, food additives, pharmaceuticals, insecticides, dyes, natural and synthetic fibers, waste solvents, and volatile organic compounds. All of them are dangerous and resistant to different ways of degradation. Since even extremely small amounts of these contaminants in water lead to many problems in the environment and human health, water purification of these impurities has been of great interest to scientists in recent decades. Various strategies have been devised to prevent their environmental malicious effects, and in the case of wastewater purification, a lot of research is underway to find better ways for this purpose. The use of MOF composites on a commercial scale is still a long way off, but researchs clearly demonstrates their promise for treating water contaminated by organic compounds. Thus, this review focuses on studying and summarizing adsorptive and degradative removal of different organic toxic impurities such as dyes, pharmaceuticals, and organic solvents as well as organic volatile compounds by using MOFs composites. In addition, challenges in further development of MOF composites are discussed. According to this study, MOF composites play a pivotal role in the adsorption and removal of polluting agents from wastewater. Combining MOFs with other functional materials can reduce the disadvantages of individual components.