Hussain Mushtaq, Hussaini Syed Sulaiman, Shariq Mohammad, Alzahrani Hanan, Alholaisi Arafa A, Alharbi Samar H, Alsharif Sirajah A, Al-Gethami Wafa, Ali Syed Kashif, Alaghaz Abdel-Nasser M A, Siddiqui Mohd Asim, Seku Kondaiah
Engineering Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman.
Department of Physics, College of Science, Jazan University, Jazan 45142, Saudi Arabia.
Molecules. 2023 Jun 1;28(11):4494. doi: 10.3390/molecules28114494.
Aquatic pollution, which includes organic debris and heavy metals, is a severe issue for living things. Copper pollution is hazardous to people, and there is a need to develop effective methods for eliminating it from the environment. To address this issue, a novel adsorbent composed of frankincense-modified multi-walled carbon nanotubes (Fr-MMWCNTs) and FeO [Fr-MWCNT-FeO] was created and subjected to characterization. Batch adsorption tests showed that Fr-MWCNT-FeO had a maximum adsorption capacity of 250 mg/g at 308 K and could efficiently remove Cu ions over a pH range of 6 to 8. The adsorption process followed the pseudo-second-order and Langmuir models, and its thermodynamics were identified as endothermic. Functional groups on the surface of modified MWCNTs improved their adsorption capacity, and a rise in temperature increased the adsorption efficiency. These results highlight the Fr-MWCNT-FeO composites' potential as an efficient adsorbent for removing Cu ions from untreated natural water sources.
包括有机碎片和重金属在内的水体污染，是生物面临的一个严峻问题。铜污染对人类有害，因此需要开发从环境中消除铜污染的有效方法。为解决这一问题，一种由乳香改性多壁碳纳米管（Fr-MMWCNTs）和FeO组成的新型吸附剂[Fr-MWCNT-FeO]被制备出来并进行了表征。批量吸附试验表明，Fr-MWCNT-FeO在308 K时的最大吸附容量为250 mg/g，在pH值为6至8的范围内能够有效去除铜离子。吸附过程遵循准二级动力学和朗缪尔模型，其热力学性质为吸热。改性多壁碳纳米管表面的官能团提高了它们的吸附能力，温度升高会提高吸附效率。这些结果凸显了Fr-MWCNT-FeO复合材料作为从未处理的天然水源中去除铜离子的高效吸附剂的潜力。
