Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India.
Department of Biotechnology, Vignan's Foundation for Science Technology and Research, Vadlamudi, India.
Environ Technol. 2024 Nov;45(27):5865-5877. doi: 10.1080/09593330.2024.2310034. Epub 2024 Jan 29.
Eradication of heavy metal pollution has become the prime priority over the conservation of water resources in the upcoming era. Herein, the study involved the halophilic fungal melanin from showed a promising biosorbent for the removal of toxic heavy metals which shows eco-friendly, cost-effective, high stability, and adsorbent efficiency. Polyurethane blended with fungal melanin polymers, makes polymeric nanofibrous membranes through electrospinning techniques. BET isotherms revealed the raw fungal melanin holds a surface area of 3.54 m/g exhibiting type IV isotherms. BJH results in a total pore volume of 5.79 cc/g with a pore diameter of 6.54 ± 1 nm for pores smaller than 4544.8 Å. Exhibits Eumelanin properties were characterized by FE - SEM and FTIR functional elements. ICPMS confirmed the metal adsorption proficiency on both raw and melanized membranes before and after treatments. Over 17 heavy metals, Ni were adsorbed with 100% efficiency by raw melanin alone with 42.48 µg/L of Ni concentration in the water sample, whereas, Cu, Zn, Co, Cr, Pb, Mn, Al, Mo, Sb, Ba, Fe, and Mg stands next with 99%. In this study, gentle/simple application of raw fungal melanin (without PUR tailored) can detoxify the maximum concentration of heavy metals present in the water bodies which are further used for irrigation and even drinking purposes. This mycoremediation approach can be easily adapted to industrial production than other high-performance membrane materials with minimal process modification, making it a promising strategy for improving the adsorption properties used in various applications after still furthermore investigation.
在即将到来的时代，消除重金属污染已成为优先事项，超过了对水资源保护的重视。在此，从嗜盐真菌黑色素的研究中显示出一种很有前途的生物吸附剂，可用于去除有毒重金属，具有环保、经济高效、高稳定性和吸附效率。通过静电纺丝技术将聚氨酯与真菌黑色素聚合物混合，制成聚合物纳米纤维膜。BET 等温线表明，原始真菌黑色素的比表面积为 3.54 m/g，表现出 IV 型等温线。BJH 结果表明，总孔体积为 5.79 cc/g，孔径为 6.54 ± 1nm，对于小于 4544.8 Å 的孔。FE-SEM 和 FTIR 功能元素表明其具有真黑色素特性。ICPMS 证实了处理前后原始和黑色素化膜对重金属的吸附能力。在 17 种重金属中，Ni 仅被原始黑色素单独吸附，水中 Ni 浓度为 42.48 µg/L，达到 100%的吸附效率，而 Cu、Zn、Co、Cr、Pb、Mn、Al、Mo、Sb、Ba、Fe 和 Mg 的吸附效率则达到 99%。在这项研究中，原始真菌黑色素（未经 PUR 修饰）的温和/简单应用可以使水体中存在的重金属最大浓度得到解毒，然后可用于灌溉，甚至饮用水。与其他高性能膜材料相比，这种真菌修复方法可以更容易地适应工业生产，只需进行最小的工艺修改，因此，在进一步研究之后，这是一种很有前途的提高各种应用中吸附性能的策略。
