Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water

Abstract

Driven by the need for delivering sustainable water purification solutions for the removal of heavy metals from water, TETA functionalised electrospun PVC membranes were fabricated and used to remove lead(ii) ions selectively from water.

Tailored Zeolitic Imidazolate Framework (TSC‐ZIF) for water purification: Evaluating TSC‐ZIF affinity towards heavy metal ions in multi‐metal solutions

“…The step-up duty on the world's freshwater resources has critically impacted the social and economic contentment of many communities and is expected to be aggravated in the future due to projected population increase, climate transformation, urbanization, growth in intoxicated agriculture, and economic development. [1][2][3][4] Decreased water availability and quality have intensified the need to develop highly efficient wastewater treatment technologies for the capture of toxic pollutants present in aqueous solutions. Huge efforts were invested to adopt effective technologies to remediate pollutants.…”

“…Adsorption is among the most efficient methods in water treatment. It is inexpensive, easy to operate, and regenerative in most cases 4,17,18 …”

“…It is inexpensive, easy to operate, and regenerative in most cases. 4,17,18 Metal-organic frameworks (MOFs) are forms of crystalline materials characterized by their porous structure and high surface area, making them highly adaptable for a wide range of applications. These intrinsic characteristics render MOFs suitable for diverse fields, including water treatment, gas storage, separation, carbon capture, and various utility scenarios.…”

Effect of wire and needle spinning on the direct manufacturing PAN/amine nanofibrous membranes for CO2 sorption

“…42 Song et al 43 modified PAN by dipping in PEI solution with the addition of epichlorohydrin (membrane water resistance) to capture heavy metals from the water. The use of the above-mentioned amines is also abundant in the capture of heavy metals, with which they form stable complexes in water, such as lead (Youness et al 44 ), silver and gold (Mahanta and Valiyaveett 45 ) or chromium, cadmium, copper and lead. 46–48…”

“…42 Song et al 43 modified PAN by dipping in PEI solution with the addition of epichlorohydrin (membrane water resistance) to capture heavy metals from the water. The use of the above-mentioned amines is also abundant in the capture of heavy metals, with which they form stable complexes in water, such as lead (Youness et al 44 ), silver and gold (Mahanta and Valiyaveett 45 ) or chromium, cadmium, copper and lead. [46][47][48] In this work electrospun nanofiber membranes for CO 2 capture based on polyacrylonitrile modified with various amines (triethylenetetramine -TETA, tetraethylenepentamine -TEPA) have been prepared.…”