Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.
Amirkabir University of Technology-Mahshahr Campus, University St., Nahiyeh San'ati, Mahshahr, Khouzestan, Iran.
Int J Biol Macromol. 2023 Jun 30;241:124472. doi: 10.1016/j.ijbiomac.2023.124472. Epub 2023 Apr 17.
Water sources are becoming increasingly scarce, and they are contaminated by industrial, residential, and agricultural waste-derived organic and inorganic contaminants. These contaminants may pollute the air, water, and soil and invade the ecosystem. Because carbon nanotubes (CNTs) can undergo surface modification, they can combine with other substances to create nanocomposites (NCs), including biopolymers, metal nanoparticles, proteins, and metal oxides. Furthermore, biopolymers are significant classes of organic materials that are widely used for various applications. They have drawn attention due to their benefits, such as environmental friendliness, availability, biocompatibility, safety, etc. As a result, the synthesis of a composite made of CNT and biopolymers can be very effective for various applications, especially those involving the environment. In this review, we reported environmental applications (including removal of dyes, nitro compounds, hazardous materials, toxic ions, etc.) of composites made of CNT and biopolymers such as lignin, cellulose, starch, chitosan, chitin, alginate, and gum. Also, the effect of different factors such as the medium pH, the pollutant concentration, temperature, and contact time on the adsorption capacity (AC) and the catalytic activity of the composite in the reduction or degradation of various pollutants has been systematically explained.
水资源日益匮乏，且受到工业、生活和农业废物衍生的有机和无机污染物的污染。这些污染物可能会污染空气、水和土壤，并入侵生态系统。由于碳纳米管（CNTs）可以进行表面改性，它们可以与其他物质结合形成纳米复合材料（NCs），包括生物聚合物、金属纳米粒子、蛋白质和金属氧化物。此外，生物聚合物是一类重要的有机材料，广泛应用于各种领域。由于其具有环保、易得、生物相容性、安全性等优点，引起了人们的关注。因此，合成 CNT 和生物聚合物组成的复合材料对于各种应用非常有效，特别是在环境方面的应用。在这篇综述中，我们报道了 CNT 和生物聚合物（如木质素、纤维素、淀粉、壳聚糖、几丁质、藻酸盐和树胶）复合材料在环境方面的应用（包括去除染料、硝基化合物、危险材料、有毒离子等）。此外，还系统地解释了不同因素（如介质 pH 值、污染物浓度、温度和接触时间）对复合材料在还原或降解各种污染物过程中的吸附容量（AC）和催化活性的影响。
