To maintain a contribute of drinking water and prevent worldwide water toxic waste, new and innovative water technologies are needed to address significant issues in the global water situation, mostly caused by population expansion and climate change on a global scale. This pollution is caused by mining activities, surface runoff from agricultural fields, untreated waste dumping by municipalities, and inadequate discharge of engineering effluents into the soil and water bodies. These actions degrade our environment’s fundamental qualities and endanger person physical condition and existence. Heavy metal contamination damages the food chain and lowers water quality because heavy metals, which are naturally occurring minerals and a significant component of the earth’s crust, have resistant effects. To develop effective techniques for wastewater clean-up, several researchers have conducted studies in this regard. In light of this, new avenues for technical advancement in sophisticated water and wastewater technology processes are presented by the integration of highly advanced nanotechnology with conventional process engineering. An overview of current development in nanotechnologies for the treatment of water and wastewater is given here. Adsorption is a straightforward process that facilitates the use of a broad variety of adsorbents and is very feasible from an economic perspective. Because of the efficacy of many nanomaterials, wastewater treatment has made use of them as adsorbents and various industrial methods, thanks to advancements in nanotechnology. Numerous investigators have documented that nanotechnology inventions are without a doubt an effective way to tackle the issues facing our planet. This paper offers a persuasive perspective on the many kinds of nanoadsorbents and how they are used in wastewater treatment. Backspace offers up-to-date information regarding nanoadsorbents, and it offers an overview of the applicability of various nanomaterial types for wastewater clean-up.