CAJ | 학술논문

污水处理厂的污泥经NaOH溶液浸泡去除灰分开孔后用作载体，通过多步浸渍-还原法负载Co制得Co基催化剂。采用XRD、SEM和N2吸附测试对该催化剂进行表征分析，结果表明：Co成功负载到了污泥基载体上，催化剂表面孔结构发达，具有较大比表面积和分布较均一的孔径。今系统性考察了催化剂用量、反应温度和循环次数对污泥基催化剂催化性能的影响；实验证明该催化剂稳定性及活性均较高，在循环使用9次后，催化产氢产率仅由179.2 mL×min-1×g-1催化剂下降至106.7 mL×min-1×g-1催化剂。催化剂催化产氢反应的活化能为55.12 kJ×mol-1。污泥来源广泛，以其为载体制备产氢催化剂可应用于便携式氢燃料电池领域，具有很好的环境、社会和经济效益。
오수처리엄적오니경NaOH용액침포거제회분개공후용작재체，통과다보침지-환원법부재Co제득Co기최화제。채용XRD、SEM화N2흡부측시대해최화제진행표정분석，결과표명：Co성공부재도료오니기재체상，최화제표면공결구발체，구유교대비표면적화분포교균일적공경。금계통성고찰료최화제용량、반응온도화순배차수대오니기최화제최화성능적영향；실험증명해최화제은정성급활성균교고，재순배사용9차후，최화산경산솔부유179.2 mL×min-1×g-1최화제하강지106.7 mL×min-1×g-1최화제。최화제최화산경반응적활화능위55.12 kJ×mol-1。오니래원엄범，이기위재체제비산경최화제가응용우편휴식경연료전지영역，구유흔호적배경、사회화경제효익。
The sewage sludge from the Wastewater Treatment Plant of Qingdao was soaked by high concentration NaOH solution to reduce its ash content. Cobalt nitrate was impregnated with the treated sludge by multiple impregnation-reduction procedures to generate a sludge-supported Co catalyst. The prepared catalysts were characterized by X ray diffraction (XRD), scanning electron microscopy (SEM), and N2 adsorption measurements. The results indicate that the Co is successfully loaded on the sludge-based support. A systematic study was conducted to evaluate the effects of the amount of catalysts, the reaction temperature, the concentration of NaOH and the concentration of NaBH4 on stability and catalytic performance of the prepared catalysts. The results confirm that the sludge-supported Co catalyst exhibits good stability and catalytic activity. After being used for 9 times, the hydrogen generation ratio of the catalyst decreases from 179.2 mL×min-1×g-1 to 106.7 mL×min-1×g-1. The activation energy of the hydrogen generation reaction of the catalyst is 55.12 kJ×mol-1. Sludge is abundant in nature, and using sludge as Co support provides a way to turn the waste into resource.