Morad Moataz, Fahmi Mohamed S, Subaihi Abdu, Alotaibi Mohammed T, Shahat Ahmed, Ali Mohamed E A
Chemistry Department, Faculty of Sciences, Umm Al-Qura University Makkah 21955 Saudi Arabia.
Chemistry Department, Faculty of Science, Suez University P.O. Box: 43221 Suez Egypt.
RSC Adv. 2024 Sep 27;14(42):30912-30923. doi: 10.1039/d4ra05629a. eCollection 2024 Sep 24.
Carbon nano-spheres (CNS) were synthesized a hydrothermal method using d-glucose as a precursor, followed by pyrolysis in a nitrogen atmosphere. The resulting CNS were integrated into polysulfone (PSF) membranes to enhance their photothermal properties. Characterization using various techniques revealed improved thermal properties upon CNS inclusion, with a notable increase in membrane surface temperature and enhancement of contact angle (CA) and liquid entry pressure (LEP). Composite PSF membranes containing varying CNS concentrations (0.25-5%) exhibited optimal performance at 3% CNS concentration, demonstrating enhanced morphological conformation and photothermal attributes. Evaluation under tungsten bulbs light using a photothermal membrane distillation system showed significant improvement in membrane distillation flux, achieving a maximum water flux of 7.73 L m h and a salt rejection rate of 99.9%. These findings highlight the potential of hydrothermal CNS in enhancing photothermal properties and membrane performance for applications in desalination and wastewater treatment.
采用水热法以d-葡萄糖为前驱体合成了碳纳米球（CNS），随后在氮气气氛中进行热解。将所得的CNS整合到聚砜（PSF）膜中以增强其光热性能。使用各种技术进行表征表明，加入CNS后热性能得到改善，膜表面温度显著升高，接触角（CA）和液体进入压力（LEP）增大。含有不同CNS浓度（0.25 - 5%）的复合PSF膜在CNS浓度为3%时表现出最佳性能，展现出增强的形态构象和光热特性。在使用光热膜蒸馏系统的钨灯光下进行评估，结果表明膜蒸馏通量显著提高，最大水通量达到7.73 L m h，脱盐率为99.9%。这些发现突出了水热法制备的CNS在增强光热性能和膜性能以用于海水淡化和废水处理应用方面的潜力。
