Abstract：
Nanocomposites have emerged as promising materials for pollutant removal due to their unique properties. However, conventional synthesis methods often involve toxic solvents or expensive materials. In this study, we present a novel ternary nanocomposite synthesized via a simple, cost-effective vacuum filtration method. The composite consists of calcium phosphate (CaP), biowaste-derived nanocellulose (diameter <50 nm) (NC), and chitosan (CH). The nanocomposite exhibited exceptional pollutant removal capabilities due to the hybrid approach of combining adsorption and size exclusion that widens and accelerates pollutant removal. When tested with synthetic wastewater containing 10 ppm of Ni ions and 10 ppm of Congo red (CR) dye, it achieved impressive removal rates of 98.7% for Ni ions and 100% for CR dye. Moreover, the nanocomposite effectively removed heavy metals such as Cd, Ag, Al, Fe, Hg, Mo, Li, and Se at 100%, and Ba, Be, P, and Zn at 80%, 92%, 87%, and 97%, respectively, from real-world municipal wastewater. Importantly, this green nanocomposite membrane was synthesized without the use of harmful chemicals or complex modifications and operated at a high flux rate of 146 L/m2.h.MPa. Its outstanding performance highlights its potential for sustainable pollutant removal applications.
摘要：
纳米复合材料由于其独特的性能而成为有前途的污染物去除材料。然而,传统的合成方法通常涉及有毒溶剂或昂贵的材料。在这项研究中,我们提出了一种新型的三元纳米复合材料，通过简单的合成，经济有效的真空过滤方法。复合材料由磷酸钙（CaP）组成，生物废料衍生的纳米纤维素（直径<50nm）（NC），和壳聚糖（CH）。由于结合吸附和尺寸排阻的混合方法扩大和加速污染物去除，纳米复合材料表现出出色的污染物去除能力。当使用含有10ppmNi离子和10ppm刚果红（CR）染料的合成废水进行测试时，对镍离子的去除率为98.7%，对CR染料的去除率为100%。此外，纳米复合材料有效去除重金属，如Cd，Ag,Al,Fe,Hg,Mo,Li,硒为100%，还有Ba,Be,P,锌含量为80%，92%,87%,97%,分别,来自现实世界的市政废水。重要的是,这种绿色纳米复合膜是在没有使用有害化学物质或复杂修饰的情况下合成的，并且以146L/m2的高通量速率运行。H.MPa。其出色的性能凸显了其可持续污染物去除应用的潜力。
