Abstract：
The activated carbon was produced in the first phase of this investigation by chemically activating hazelnut shell waste with H3PO4. Composite materials were obtained by coating the activated carbon with zinc oxide, whose BET surface area was calculated as 1278 m2 g-1. ZnO-doped ZnO/AC composite was synthesized as an adsorbent for its possible application in the elimination of organic dyestuff MB, and its removal efficiency was investigated. Morphological properties of ZnO/AC were characterized using analytical methods such as XRD, SEM, and BET. The adsorption system and its parameters were investigated and modeled using the response surface method of batch adsorption experiments. The experimental design consisted of three levels of pH (3, 6.5, and 10), initial MB concentration (50, 100, and 150 mg L-1), dosage (0.1, 0.3, and 0.5 g 100 mL-1), and contact time (5, 50, and 95 min). The results from the RSM suggested that the MB removal efficiency was 98.7% under the optimum conditions of the experimental factors. The R2 value, which expresses the significance of the model, was determined as 99.05%. Adsorption studies showed that the equilibrium data fit well with the Langmuir isotherm model compared to Freundlich. The maximum adsorption capacity was calculated as 270.70 mg g-1.
摘要：
在本研究的第一阶段，通过用H3PO4化学活化榛子壳废料来生产活性炭。通过用氧化锌涂覆活性炭获得复合材料，其BET表面积计算为1278m2g-1。合成了ZnO掺杂的ZnO/AC复合材料作为吸附剂，其可能用于消除有机染料MB，并对其去除效率进行了研究。采用XRD等分析方法对ZnO/AC的形貌进行了表征,SEM,和下注。采用响应面法进行批量吸附实验，对吸附体系及其参数进行了考察和建模。实验设计包括三个pH水平（3、6.5和10），初始MB浓度（50、100和150mgL-1），剂量（0.1、0.3和0.5g100mL-1），和接触时间（5、50和95分钟）。RSM的结果表明，在实验因素的最佳条件下，MB的去除效率为98.7％。R2值，表达了模型的意义，被确定为99.05%。吸附研究表明，与Freundlich相比，平衡数据与Langmuir等温线模型吻合良好。最大吸附容量计算为270.70mgg-1。
