Advanced Powder Technology ( IF 4.2 ) Pub Date : 2020-11-13 , DOI: 10.1016/j.apt.2020.10.005 Jafar Shahrivar , Mahdi Gharabaghi
In the current paper, the adsorption capability of gold from solution by activated carbon and functionalized graphene/carbon activated composite were studied. The results of adsorption on activated carbon showed that gold adsorption could reach 60 mg/g under the optimum conditions of pH = 9 and solution concentration = 1000 mg/l. Isotherm, kinetic and thermodynamic studies of gold adsorption on activated carbon were also examined. The effects of new adsorbent concentration (i.e. functionalized graphene/activated carbon composite), pH and were analyzed. SEM, FT-IR and EDX were used to evaluate and measure the quality of adsorption. The results indicated that adsorption of 200 mg/g could be reached under the following solution conditions: pH of 9, concentration of 1000 mg/l. It was concluded that functionalized graphene/carbon activated composite could be considered a stronger adsorbent rather than activated carbon for . The experiment results were further validated through SEM and EDX results.
中文翻译:
分离 通过活性炭和功能化石墨烯/活性炭复合材料
本文研究了活性炭和功能化石墨烯/碳活化复合材料对溶液中金的吸附能力。结果 活性炭的吸附结果表明,在pH = 9的最佳条件下,金的吸附量可达60 mg / g。 溶液浓度= 1000 mg / l。还研究了金在活性炭上的吸附等温,动力学和热力学研究。新吸附剂浓度(即功能化石墨烯/活性炭复合物),pH和被分析。SEM,FT-IR和EDX用于评估和测量吸附质量。结果表明 在以下溶液条件下,吸附量可达200 mg / g:pH为9, 浓度为1000 mg / l。结论是,功能性石墨烯/碳活化复合材料可被认为是一种更强的吸附剂,而不是活性炭。。通过SEM和EDX结果进一步验证了实验结果。